MXPA00010212A - Skin care kit - Google Patents

Abstract

The present invention relates to a skin care kit useful skin conditioning. The kit, which includes a skin care composition contained within a dispenser, is particularly useful for providing good moisturization and aesthetics to both cream and lotion users. More particularly, this invention relates to a skin care kit useful for regulating skin condition (especially human skin, more especially human facial skin), including lubricating the skin, increasing the smoothness and suppleness of the skin, preventing or relieving dryness of the skin, hydrating the skin, and/or protecting the skin regulating visible and/or tactile discontinuities in skin, e.g., visible and/or tactile discontinuities in skin texture, more especially discontinuities associated with skin aging.

Description

SKIN CARE EQUIPMENT TECHNICAL FIELD The present invention relates to the field of conditioning compositions for skin care and dispensers therefor. More particularly, this invention relates to a skin care equipment comprising a pump dispenser and a composition useful for regulating a condition of the skin (especially human skin, most especially human facial skin), including lubricating the skin, increase the smoothness and smoothness of the skin, prevent or alleviate the dryness of the skin, moisturize the skin and / or protect the skin by regulating visible and / or tactile discontinuities in it, for example, visible and / or tactile discontinuities in the texture of the skin, especially discontinuities associated with the aging of the skin.

BACKGROUND In the skin care market there are two groups of defined consumer users, users of creams and users of lotions. Cream users desire a skin care product with a relatively high viscosity (ie, thick consistency) that provides adequate wetting. Users of lotions, in contrast, they desire a skin care product of relatively low viscosity, (ie thinner consistency) which also provides adequate moisture but which is rapidly absorbed into the skin after topical application. Traditionally, manufacturers of skin care products have recognized the unique needs of the two different consumer groups and have marketed both a cream version and a lotion of the same product to satisfy both groups. However, this categorical product distinction is inefficient and increases the manufacturer's costs to develop, test, launch and market the product. These costs inevitably pass to consumers. Therefore, there remains a need for a single topical skin care product that provides adequate aesthetic and skin conditioning benefits and that is attractive to groups of users consuming both creams and lotions. In addition to compositions that are attractive to users of both creams and lotions, it is important that said compositions are marketed in suitable packages that are also attractive to both groups of users. An important factor that is commonly ignored in packaging is the ergonomic factor. Both users of creams and lotions want a product package that is easy and convenient to use. However, due to the nature of the different product forms, the creams are typically marketed in bottles or tubes with relatively large orifices, while the lotions are marketed Typically in pumps, bottles or tubes with relatively smaller orifices In this way, both groups of users are predisposed to buy the types of packages that are typically associated with their respective products. Despite this predisposition, users of creams still prefer that their Thicker skin care product is supplied with the precision of a pump For example, there is a need for a single dispenser that is ergonomically friendly and efficient so that the skin care product is delivered easily and conveniently and so that the number of components of the dispenser is minimal It has surprisingly been found that the present invention provides a single skin care product that is attractive to both users of creams and lotions, satisfying these needs. The present inventors have found that a only skin care product that you sew in compositions for the particular skin care contained in defined dispensers provide the desired conditioning and aesthetic benefits of the skin by both users of creams and lotions. The present invention also relates to methods for regulating a skin condition by topical application of the present skin care compositions contained therein BRIEF DESCRIPTION OF THE INVENTION The present invention relates to a skin care equipment comprising a skin care composition contained within a dispenser. The skin care composition of the present invention is useful both for topical application and for provide skin conditioning In particular, the compositions regulate the conditions of the skin, which includes but is not limited to, lubricating the skin, increasing the smoothness and smoothness of the skin, avoiding or alleviating the dryness of the skin, hydrating the skin and / or protecting the skin by regulating visible and / or tactile discontinuities in the skin, for example, visible and / or tactile discontinuities in the texture of the skin, more especially discontinuities associated with skin aging The composition for care of the skin comprises an emulsion having 1) at least one hydrophobic phase comprising an oil and about 0 1% to about 20% of an emollient light, 2) at least one hydrophilic phase comprising water, and 3) about 0 1% to about 5% of an emulsifier having an HLB of at least 6 The composition also has a viscosity of about 15,000 cps a about 200,000 cps and a pH of about 3 to about 9 Preferably, the skin care composition of the present invention comprises 1) an oil in water emulsion with a) at least one hydrophobic phase comprising an oil and about 0.15% to about 10% of a light emollient selected from a group consisting of isododecane, isopropyl istearate, methyl isostearate, ethyl isostearate, isononyl isonononoate , dimethicone and mixtures thereof; b) at least one hydrophilic phase comprising water; c) about 0.1% to about 5% of an emulsifier selected from the group consisting of sorbitan monostearate, sucrose cocoate, steareth-10, steareth-20, steareth-21, steareth-100, oleth-10, oleth-20 , laureth-23, cetearyl glucoside, ceteth-10, ceteth-20, PEG-100 stearate and mixtures thereof; and d) about 0.1% to about 5% by weight of the composition, of a polymeric thickening agent; 2) about 0.1% to about 2% of a reflecting particulate material that is preferably charged and selected from the group consisting of TiO2, ZnO, ZrO2 and mixtures thereof; and 3) about 0.1% to about 20% of a skin care active, preferably of niacinamide, wherein the composition has a viscosity of about 25,000 cps at about 60,000 cps and a pH of about 5 to about 7. The dispenser for the skin care composition comprises a manually operated pump securely connected to an ergonomic container having a driver cover where the The dispenser is configured in such a way that the pump coincides with the container and the container has a configuration such that it provides a comfortable and easy grip by a human hand, wherein the hand easily adapts to the shape of the container and the actuator cover can be substantially depressed only by the movement of the tip of either the thumb or the index finger. In preferred embodiments, the dispenser is configured as shown in the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The embodiments of the invention will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 shows a longitudinal sectional view of a dispenser according to a first embodiment of the invention; Figure 2 shows an enlarged illustration of an upper part of the dispenser shown in Figure 1; Figure 3 shows a longitudinal sectional view of an upper part of a dispenser according to a second embodiment of the invention. Figure 4 shows a longitudinal sectional view of an upper part of a dispenser according to a third embodiment; Figure 5 shows a cross-sectional view taken along the line l-l of Figure 4; Figure 6 shows a longitudinal sectional view of an upper part of a dispenser according to a fourth embodiment of the invention; and Figure 7 shows a longitudinal sectional view of the upper part of a dispenser according to a fifth embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION All percentages and ratios used herein are by weight of the total composition, and all measurements are made at 25 ° C, unless otherwise designated. The compositions of the present invention may comprise, consist essentially of, or consist of, the essential ingredients, as well as optional ingredients and components described herein. As used herein, "consisting essentially of" means that the composition or component may include additional ingredients, but only if the additional ingredients do not materially alter the basic and novel characteristics of the claimed compositions or methods. All publications cited herein are hereby incorporated by reference in their entirety.

The term "topical application", as used herein, means applying or spreading the compositions of the present invention on the surface of the skin. The term "dermatologically acceptable", as used herein, means that the compositions or components thereof described in this manner are suitable for use in contact with human skin without toxicity, incompatibility and undue instability, allergic response and the like. The term "safe and effective amount", as used herein, means an amount of a compound , component or composition sufficient to induce significantly a positive benefit, preferably a positive benefit of skin appearance or sensation, including independently the benefits described herein, but low enough to avoid side effects, ie, provide a reasonable benefit ratio, within the scope of the jus The active ingredients and other useful herein can be categorized or described herein for their cosmetic and / or therapeutic benefit or for their postulated mode of action. However, it should be understood that the active ingredient or other ingredients useful herein may in some cases provide more than one cosmetic and / or therapeutic benefit or function through more than one mode of action. Therefore, classifications in the present are made for reasons of convenience and are designed to limit an ingredient to the particularly indicated application or listed applications. The compositions of the invention are useful for topical application and for providing skin conditioning (i.e., wetting) after application of the composition to the skin. More particularly, the compositions of the present invention are useful for regulating skin conditions, including regulating visible and / or tactile discontinuities in the skin, including but not limited to visible and / or tactile discontinuities in the texture and / or color of the skin. skin, more especially discontinuities associated with skin aging. These discontinuities can be induced or caused by internal and / or external factors. Extrinsic factors include ultraviolet radiation (e.g., from sun exposure), environmental pollution, wind, heat, low humidity, aggressive surfactants, abrasives and the like. Intrinsic factors include chronological aging and other biochemical changes from within the skin. Regulating a skin condition includes regular prophylactic and / or therapeutically a skin condition. As used herein, prophylactically regulating a condition of the skin includes delaying, minimizing and / or preventing visible and / or tactile discontinuities in the skin. As used herein, therapeutically regulating a condition of the skin includes decreasing, for example, reducing, minimizing and / or covering said discontinuities. Regular skin conditions include improving the appearance and / or feeling of the skin, for example, providing a smoother and more uniform appearance and / or feel. As used herein, regulating a condition of the skin includes regular signs of aging. "Regulating Signs of Skin Aging" includes prophylactically regulating and / or therapeutically regulating one or more of said signals (similarly, regulating certain signs of aging of the skin, for example, lines, wrinkles or pores, includes prophylactically regulating and / or therapeutically regulate that signal). The "signs of aging of the skin" include, but are not limited to, all externally visible and tacitly perceptible manifestations, as well as any other macro or micro effect due to the aging of the skin. These signals can be induced or caused by intrinsic factors or extrinsic factors, for example, chronological aging and / or environmental damage. These signals may be the result of processes that include but are not limited to, the development of texture discontinuities such as wrinkles, including both fine and deep coarse wrinkles, lines on the skin, folds, grains, large pores (e.g. associated with attached structures such as ducts of sweat glands, sebaceous glands or hair follicles), dryness, scaly and / or other forms of non-uniform nature or roughness of the skin, loss of skin elasticity (loss and / or inactivation of functional skin elastin), swelling (including swelling in the eye area and dark circles), loss of skin firmness, loss of skin hardness, loss of skin recovery from deformation, discoloration (including circles under the eye), swelling, hyperpigmented skin regions such as age spots and freckles, keratoses, abnormal differentiation, hyperkeratinization, elastosis, collagen degradation and other histological changes in the stratum corneum, dermis, epidermis , the vascular system of the skin (for example, telangiectasia or spider vessels) and underlying tissues, especially those close to the skin. It is to be understood that the present invention should not be limited to the regulation of the "signs of skin aging" mentioned above, which originate due to mechanisms associated with skin aging, but is designed to include regulation of skin aging. said signals regardless of the mechanism of origin. As used herein, "regulate a skin condition" is designed to include the regulation of said signals regardless of the mechanism of origin.

I. Emulsion The compositions of the present invention comprise an emulsion in which essential materials and optional materials are incorporated to enable essential materials and optional components to be delivered to the skin at a suitable concentration. The emulsion can then act as a diluent, dispersant, solvent or the like for the other components of the composition, which ensures that the The composition can be applied and evenly distributed over the selected objective at an appropriate concentration. Suitable emulsions include conventional vehicles or otherwise known vehicles that are dermatologically acceptable. The components of the emulsion must also be physically and chemically compatible with the essential components described herein, and must not unduly affect the stability, efficacy or other benefits of use associated with the compositions of the present invention. The preferred components of the emulsions of this invention should be capable of being mixed in such a way that there is no interaction whatsoever that could substantially reduce the effectiveness of the composition under normal conditions of use. Preferred emulsions comprise a hydrophilic phase comprising a hydrophilic component, eg, water or other hydrophilic diluent, and a hydrophobic phase comprising a hydrophobic component, for example, a lipid, oil or oily material. As is well known to the person skilled in the art, the hydrophilic phase will be dispersed in the hydrophobic phase, or vice versa, to respectively form dispersed and continuous hydrophilic and hydrophobic phases, depending on the ingredients of the composition. In emulsion technology, the term "dispersed phase" is a term well known to one skilled in the art which means that the phase exists as small particles or droplets that are suspended and surrounded by a continuous phase. The dispersed phase is also known as the internal phase or discontinuous The emulsion may be or comprise (eg, in a three or multiple phase emulsion) an oil-in-water emulsion or a water-in-oil emulsion, such as a water-in-silicone emulsion. The oil-in-water emulsions of the present compositions preferably comprise about 1% to about 50% (preferably about 1% to about 30%) of the hydrophobic dispersed phase and about 1% to about 98% (preferably about 40%). % to about 90%) of the continuous hydrophilic phase; Water-in-oil emulsions preferably comprise about 1% to about 98%, most preferably about 40% to about 90%, of the hydrophilic dispersed phase and about 1% to about 50%, most preferably 1% to about 30%. % of the continuous hydrophobic phase. The emulsion may also comprise a gel network, such as that described in G. M. Eccleston, "Application of Emulsion Stability Theories to Mobile and Semisolid O / W Emulsions", Cosmetics & Toiletries, Vol. 101, November 1996, pp. 73-92. Oil-in-water emulsions are preferred. Preferred compositions have an apparent viscosity of about 15,000 to about 200,000 centipoise (cps), preferably about 20,000 to about 100,000 cps, most preferably about 25,000 to about 60,000 cps. The viscosity can be determined using a Brookfield RVDV-II digital viscometer, with a spindle T-C (spindle 93, cross bar length 27.1 mm), at 5 rpm, or the equivalent thereof. Prior to the viscosity measurement, the composition is allowed to stabilize after its preparation or any agitation resulting from handling. Generally, the stabilization should last at least 24 hours under conditions of 25 ° C +/- 1 ° C and environmental pressure. In a further preparation for viscosity measurements, the compositions are placed in containers that will not produce or only produce minimal frictional effects in the determination of viscosity (eg, a 57-gram glass bottle with a hole of at least 28 mm) . The viscosity is measured with the composition at a temperature of 25 ° C +/- 1 ° C and after 30 seconds of spindle rotation. Five (5) viscosity measurements are collected and the average of the measurements is calculated to determine the viscosity of the composition. The compositions of the present invention are preferably formulated to have a pH of from about 3 to about 9, most preferably from about 4 to about 8, more preferably from about 5 to about 7 and even more preferably from about 6.25 to about 7.

A. Hydrophobic phase The emulsions according to the present invention contain a hydrophobic phase comprising a lipid, oil, oily component or other hydrophobic component, and about 0.1% to about 20% of a light emollient. The compositions of the present invention they preferably comprise from about 1% to about 50%, preferably from about 1% to about 30% and most preferably from about 1% to about 10% by weight of the composition of a hydrophobic component. The hydrophobic component can be derived from animals, plants or oil, and can be natural or synthetic (ie, made by man). Preferred hydrophobic components are substantially insoluble in water, most preferably essentially insoluble in water. Preferred hydrophobic components are those which have a melting point of about 25 ° C or less under about one atmosphere of pressure and are suitable for conditioning the skin. Non-limiting examples of suitable hydrophobic components include those selected from the group consisting of. 1) Mineral oil Mineral oil, which is also known as petrolatum liquid, is a mixture of liquid hydrocarbons obtained from petroleum. See The Merck Index, tenth edition, entry 7048, p. 1300 (1983) and International Cosmetic Ingredient Dictionary, fifth edition, vol. 1 p. 415-417 (1993). 2) Petrolatum Petrolatum, which is also known as petroleum jelly, is a colloidal system of non-straight chain solid hydrocarbons and liquid high-boiling hydrocarbons, in which most liquid hydrocarbons are kept within micelles See The Merck Index, tenth edition, entry 7047, p. 1033 (1983); Schindler, Druq. Cosmet. ind., 89, 36-37, 76, 78-80, 82 (1961); and International Cosmetic Ingredient Dictionary, fifth edition, vol. 1 p. 537 (1993). 3) Straight and branched chain hydrocarbons having about 7 to about 40 carbon atoms Non-limiting examples of these hydrocarbon materials include dodecane, isododecane, squalane, cholesterol, hydrogenated polyisobutylene, docosane (ie, a C22 hydrocarbon), hexadecane , isohexadecane (a commercially available hydrocarbon sold as Permethyl® 101A by Presperse, South Plainfield, NJ). Also useful are C7-C40 isoparaffins, which are branched C7-C40 hydrocarbons. 4) Alcoholic esters of C? -C-, C-Csn carboxylic acids and C? -C ^ n dicarboxylic acids Including straight and branched chain materials, as well as aromatic derivatives (as used in the present with reference to hydrophobic component, the mono- and polycarboxylic acids include straight chain, branched chain and aryl carboxylic acids. Non-limiting examples include dlisopropyl sebacate, diisopropyl adipate, isopropyl myristate, isopropyl palmitate, methyl palmitate, myristyl propionate, 2-ethylhexyl palmitate, isodecyl neopentanoate, di-2-ethylhexyl maleate, cetyl palmitate, myristyl myristate, stearyl stearate, isopropyl isostearate, methyl stearate, cetyl stearate, behenyl behenate, dioctyl maleate, dioctyl sebacate, diisopropyl adipate, cetyl octanoate and dlisopropyl dilinoleate.

) Mono-, di-tri-glycerides of C-C-C carboxylic acids These thickening agents include caprylic / capric triglyceride, caprylic / capric triglyceride of PEG-6, caprylic / capric triglyceride of PEG-8, etc. 6) Ci-Can carboxylic acid alkyl esters Suitable thickeners include ethylene glycol mono- and diesters, and propylene glycol mono- and diesters of C 1 -C 30 carboxylic acids (eg, ethylene glycol distearate). 7) Propoxylated and ethoxylated derivatives of the above materials 8) Mono- and polyesters of C-i-C sugars and related materials These esters are derived from a sugar or polyol portion and one or more carboxylic acid moieties. Depending on the acid and constituent sugar, these esters can be either liquid or solid at room temperature. Examples of liquid esters include: glucose tetraoleate, glucose tetraesters of soybean oil fatty acids (unsaturated), mixed soybean oil fatty acid tetraesters, galactose tetraesters of oleic acid, arabinose tetraesters of linoleic acid, xylose tetralinoleate, galactose pentaoleate, sorbitol tetraoleate, sorbitol hexaesters of unsaturated soy fatty acids, xylitol pentaoleate, sucrose tetraoleate, sucrose pentaoleate, sucrose hexaoleate, sucrose heptaoleate, sucrose octaoleate and mixtures thereof. Examples of solid esters include: sorbitol hexaester in which the carboxylic acid ester portions are palmitoleate and arachididate in a 1: 2 molar ratio; the octaester of raffinose in which the carboxylic acid ester portions are linoleate and behenate in a 1: 3 molar ratio; the maltose heptaester in which the esterification carboxylic acid moieties are sunflower seed oil and lignocerate fatty acids in a 3: 4 molar ratio; the octaester of sucrose in the that the esterification carboxylic acid moieties are oleate and behenate in a 2: 6 molar ratio; and the octaester of sucrose wherein the carboxylic acid portions of esterification are laurate, linoleate and behenate in a 1: 3: 4 molar ratio. A preferred solid material is sucrose polyester in which the degree of esterification is 7-8, and in which the fatty acid moieties are mono- and / or di-unsaturated and behenic of C-iß, in a molar ratio of unsaturated: behenic from 1: 7 to 3: 5. A solid sugar polyester that is particularly preferred is the sucrose octaester in which there are about 7 portions of behenic fatty acid and about a portion of oleic acid in the molecule. Other materials include fatty acid esters of cottonseed oil and sucrose soybean oil. Ester materials are further described in the U.S.A. No. 2,831, 854, U.S. Patent No. No. 4,005,196 to Jandacek, issued January 25, 1977; patent of E.U.A. No. 4,005,195 to Jandacek, issued on January 25, 1977; patent of E.U.A. No. 5,306,516, to Letton et al., Issued April 26, 1994; patent of E.U.A. No. 5,306,515, to Letton et al., Issued April 26, 1994; patent of E.U.A. No. 5,305,514, to Letton et al., Issued April 26, 1994; patent of E.U.A. No. 4,797,300, to Jandacek et al., Issued January 10, 1989; patent of E.U.A. do not. 3,963,699, to Rizzi et al, issued June 15, 1976; patent of E.U.A. No, 4,518,772, to Volpenheín, issued May 21, 1985 and patent of E.U.A. No. 4,517,360, to Volpenhein, issued May 21, 1985. 9) Orqanopolysiloxane Oils Organopolysiloxane oil can be volatile, non-volatile or a mixture of volatile and non-volatile silicones. The term "non-volatile" as used in this context refers to silicones that are liquids under ambient conditions and that have an evaporation point (under a pressure atmosphere) of or greater than about 100 ° C. The term "volatile" as used in this context refers to all other silicon oils. Suitable organopolysiloxanes can be selected from a wide variety of silicones covering a wide range of volatilities and viscosities. Non-volatile pohsiloxanes are preferred. Non-limiting examples of suitable silicones are described in the patent of E.U.A. No. 5,069,897, to Orr, issued December 3, 1991. Examples of suitable organopolysiloxane oils include polyalkylsiloxanes, cyclic polyalkylsiloxanes and polyalkylarylsiloxanes. Polyalkylsiloxanes useful in the composition herein include polyalkylsiloxanes with viscosities from about 0.5 to about 1,000,000 centistokes at 25 ° C. Said polyalkylsiloxanes can be represented by the general chemical formula R3S0 [R2S0] XSR3, wherein R is an alkyl group having one of about 30 carbon atoms (preferably R is methyl or ethyl, most preferably methyl; also mixed alkyl groups can be used in the same molecule) and x is an integer from 0 to about 10,000, chosen to achieve the desired molecular weight which can vary up to about 10,000,000. The Commercially available polyalkylsiloxanes include the polydimethylsiloxanes, which are also known as dimethicones, examples of which include the Vicasil® series sold by the General Electric Company and the Dow Corning® 200 series sold by Dow Corning Corporation. Specific examples of suitable polydimethylsiloxanes include Dow Corning® 200 fluid having a viscosity of 0.65 centistokes and a boiling point of 100 ° C, Dow Corning® 225 fluid having a viscosity of 10 centistokes and a boiling point of more than 200 °. C and Dow Corning® 200 fluids having viscosities of 50, 350 and 12,500 centistokes, respectively, and boiling points of plus 200 ° C. Suitable dimethicones include those represented by the chemical formula (CH3) 3SiO [(CH3) 2S0] x [CH3RSiO] and Si (CH3) 3, wherein R is straight or branched chain alkyl having from 2 to about 30 atoms carbon, and (x) and (y) are each one of 1 or more selected to achieve the desired molecular weight which may vary up to more than about 10,000,000. Examples of these alkyl-substituted dimethylcones include cetyl dimericone and lauryl dimethicone. Suitable cyclic polyalkylsiloxanes for use in the composition include those represented by the chemical formula [SiR2-0] n wherein R is alkyl group (preferably R is methyl or ethyl, most preferably methyl) and n is an integer from about 3 to about 8 , very preferably n is an integer from about 3 to about 7, and more preferably n is an integer from about 4 to about 6. When R 6 is methyl, these materials are typically referred to as cyclomethicones. Commercially available cyclomethicones include Dow Corning® 244 fluid having a viscosity of 2.5 centistokes, and a boiling point of 172 ° C, which contains mainly cyclomethicone tetramer (i.e., n = 4), Dow Corning® 344 fluid which it has a viscosity of 2.5 centistokes and a boiling point of 178 ° C, which contains mainly the pentamer of cyclomethicone (ie, n = 5), Dow Corning® fluid having a viscosity of 4.2 centistokes and a boiling point of 205 ° C, which mainly contains a mixture of the tetramer and pentamer of cyclomethicone (ie, n = 4 and 5), and Dow Corning® 345 fluid having a viscosity of 4.5 centistokes and a boiling point of 217 ° C., which mainly contains a mixture of the tetramer, pentamer and hexamer of cyclomethicone (ie, n = 4, 5 and 6). Also useful are materials such as trimethylsiloxysilicate, which is a polymeric material corresponding to the general chemical formula [(CH2) 3Si0? / 2] x [Si02] y, where x is an integer from about 1 to about 500 and (y) is an integer from about 1 to about 500. A commercially available trimethylsiloxysilicate is sold as a mixture with dimethicone as Dow Corning® 593 fluid. Dimethiconols are also suitable for use in the composition. These compounds can be represented by the chemical formulas R3SiO [R2SiO]? SiR2OH and HOR2SiO [2SiO] xSiR2OH, where R is an alkyl group (preferably R is methyl or ethyl, most preferably methyl) and x is an integer from 0 to about 500, chosen to achieve the desired molecular weight. Commercially available dimethiconols are typically sold as mixtures with dimeficone or cyclomethicone (e.g., Dow Corning® 1401, 1402 and 1403 fluids). The polyalkylaryl siloxanes are also suitable for use in the composition. Polymethylphenylsiloxanes having viscosities of about 15 to about 65 centistokes at 25 ° C are especially useful. It is preferred to use the organopolysiloxanes selected from the group consisting of polyalkysiloxanes, alkyl substituted dimethicones, cyclomethicones, trimethylsiloxysilicates, dimethiconols, polyalkylarylsiloxanes and mixtures thereof. It is preferred to use polyalkylsiloxanes and cyclomethicones more herein. Among the polyalkylsiloxanes, dimethicones are preferred.

) Vegetable oils and hydrogenated vegetable oils Examples of vegetable oils and hydrogenated vegetable oils include safflower oil, castor oil, coconut oil, cottonseed oil, shad oil, palm kernel oil, palm oil, oil peanut, soybean oil, rapeseed oil, linseed oil, rice bran oil, pine oil, sesame oil, sunflower seed oil, hydrogenated safflower oil, hydrogenated castor oil, oil of hydrogenated coconut, hydrogenated cottonseed oil, hydrogenated shad oil, hydrogenated palm kernel oil, hydrogenated palm oil, hydrogenated peanut oil, hydrogenated soybean oil, hydrogenated rapeseed oil, hydrogenated flaxseed oil, bran of hydrogenated rice, hydrogenated sesame oil, hydrogenated sunflower seed oil, and mixtures thereof. 11) Fats and animal oils Animal fats and oils include, for example, lanolin and derivatives thereof, and cod liver oil. 12) Alkyl ethers of C4-C20 of polypropylene glycols, C1-C20 carboxylic acid esters of polypropylene glycols and C3-C3 dialkyl ethers are also useful. Non-limiting examples of these materials include butyl ether of PPG-14, stearyl ether of PPG-15, dioctyl ether, dodecyl octyl ether and mixtures thereof. The hydrophobic phase of the present skin care compositions comprises a light dermatologically acceptable emollient. Generally, light emollients have a molecular weight of up to about 300, are easily spread and are rapidly absorbed. Said light emollients allow the present compositions to provide skin moisturizing benefits while being rapidly absorbed into the skin after topical application.

Said compositions preferably contain from about 0.1% to about 20%, most preferably 0.15% to about 10% and more preferably 0.2% to about 5% of the light emollient. The emollients, in general, have to lubricate the skin, increase the smoothness and smoothness of the skin, avoid or relieve the dryness of the skin and / or protect the skin. Emollients are typically oily or waxy materials not immiscible in water. A wide variety of suitable emollients are known and can be used herein. Sagarin, Cosmetics. Science and Technology, 2nd edition, vol. 1, pp. 32-43 (1972), contains numerous examples of suitable materials as emollients. Preferred light emollients include: sohexadecane, isododecane, isoeicosane, Cg-α6 isoparaffin, light mineral oil, isopropyl isostearate, methyl isostearate, ethyl isostearate, isononyl isonononoate, octyl palmitate, isopropyl myristate, palmitate of isopropyl, diisopropyl sebacate, hexyl laurate, C12-15 alcohol benzoate, dioctyl maleate, diisopropyl adipate, C12-15 alcohol salicylate, hydrogenated polyisobutene, octyl salicylate, cyclomethicone, dimethicone and mixtures thereof. Light emollients that are most preferred include isohexadecane, isopropyl isostearate, methyl-stearate, ethyl isostearate, isononyl isonononoate, isopropyl myristate, isopropyl palmitate, dimethicone and mixtures thereof. The most preferred light emollients are isohexadecane, isopropyl isostearate, methyl isostearate, ethyl isostearate, sononyl isonononoate, dimethicone and mixtures thereof.

B. Hydrophilic phase The emulsions of the present invention also comprise a hydrophilic phase which includes water and / or other hydrophilic diluents. Preferred emulsions contain a dermatologically acceptable hydrophilic diluent. As used herein, "diluent" includes materials in which the other components of the composition can be dispersed, dissolved or otherwise incorporated. Nonlimiting examples of hydrophilic diluents are water, organic hydrophilic diluents such as lower monovalent alcohols (eg, C 1 -C 4) and low molecular weight polyols and glycols, including propylene glycol, polyethylene glycol (eg, molecular weight of 200-600 g / moles), polypropylene glycol (for example, molecular weight 425-2025 g / mole), glycerol, butylene glycol, 1,4-butanetriol, sorbitol esters, 1, 2,6-hexanetriol, ethanol, isopropanol, butanediol, ether propanolics, ethoxylated ethers, propoxylated ethers and combinations thereof. Water is a preferred diluent. The composition preferably comprises about 60% to about 99.99% of the hydrophilic diluent. The hydrophilic phase may then comprise water, or a combination of water and one or more ingredients soluble or dispersible in water. Hydrophilic phases comprising water are preferred.

C. Emulsifiers The emulsion contains an emulsifier, generally to help disperse and suspend the discontinuous phase within the continuous phase. A wide variety of said agents can be employed. Known or conventional emulsifiers can be used in the composition, so long as the selected agent is chemically and physically compatible with the essential components of the composition, and provides the desired dispersion characteristics. The present compositions comprise an emulsifier which is preferably hydrophilic. The compositions of the present invention preferably comprise about 0.1% to about 5%, most preferably about 0.15% to about 4%, and more preferably 0.2% to about 3% of an emulsifier. Without attempting to be limited by theory, it is believed that the emulsifier helps to disperse hydrophobic materials, eg, hydrophobic structuring agents, in the hydrophilic phase. The emulsifier, at least, must be sufficiently hydrophilic to disperse in the hydrophilic phase. Preferred emulsifiers are those having an HLB of at least about 6. The exact emulsifier chosen will depend on the pH of the composition and the other components present. Preferred emulsifiers are selected from nonionic emulsifiers. Among the nonionic emulsifiers that are useful herein are those that can be broadly defined as products of condensation of long chain alcohols, for example, C8-30 alcohols, with sugar or starch polymers, ie, glycosides. These compounds can be represented by the formula (S) n-0-R, wherein S is a sugar portion such as glucose, fructose, mannose and galactose; n is an integer from about 1 to about 1000, and R is an alkyl group of Ceso. Examples of long chain alcohols from which the alkyl group can be derived include decyl alcohol, cetyl alcohol, stearyl alcohol, lauryl alcohol, myristyl alcohol, oleyl alcohol and mixtures thereof. Preferred examples of these emulsifiers include those in which S is a glucose portion, R is an alkyl group of CB-2O. and n is an integer from about 1 to about 9. Commercially available examples of these emulsifiers include decyl polyglucoside (available as APG 325 CS from Henkel) and lauryl polyglucoside (available as APG 600 CS and 625 from Henkel). Other useful nonionic emulsifiers include the condensation products of alkylene oxides with fatty acids (i.e., alkylene oxide esters of fatty acids). These materials have the general formula RCO (X) "OH, wherein R is a C10-C30 alkyl group, x is -OCH CH2- (ie, derivative of ethylene glycol or oxide) or -OCH2CHCH3 (ie, derivative of propylene glycol or oxide), and n is an integer from about 6 to about 200. Other nonionic emulsifiers are the condensation products of alkylene oxides with 2 moles of fatty acids (ie, alkylene oxide diesters of fatty acids).

These materials have the general formula RCO (X) nOOCR, wherein R is an alkyl group of C? O-3o, X is -OCH2CH2- (ie, derivative of ethylene glycol or oxide) or -OCH2CHCH3- (ie, derivative) of propylene glycol or oxide), and n is an integer of about 6 to about 100. Other nonionic emulsifiers are the condensation products of alkylene oxides with fatty alcohols (ie, alkylene oxide ethers of fatty alcohols). These materials have the general formula R (X) nOR ', wherein R is an alkyl group of C10-3o, X is -OCH2CH2- (ie, derivative of ethylene glycol or oxide) or -OCH2CHCH3- (ie, derivative of propylene glycol or oxide) and n is an integer from about 6 to about 100, and R 'is H or an alkyl group of C? o-30- Other non-ionic emulsifiers are the condensation products of alkylene oxides with both fatty acids and fatty alcohols [i.e., wherein the polyalkylene oxide moiety is esterified at one end with a fatty acid and etherified (ie, connected via an ether linkage) at the other end with a fatty alcohol]. These materials have the general formula RCO (X) nOR ', wherein R and R' are C10-30 alkyl groups. X is -OCH2CH2 (ie, derivative of ethylene glycol or oxide) or -OCH2CHCH3- (propylene glycol derivative or oxide) and n is an integer from about 6 to about 100. Non-limiting examples of these nonionic emulsifiers derived from alkylene oxide include ceteth-6, ceteth-10, ceteth-20, steareth-6, steareth-10, steareth-20, steareth-21, steareth-100, olleth-10, oleth-20, laureth-23, stearate of PEG-6, PEG-10 stearate, PEG-100 stearate, PEG-12 stearate, glyceryl stearate PEG-20, PEG-40 stearate, PEG-80 glyceryl sebalate, glyceryl stearate PEG-10, PEG-30 glycerylcocoate, PEG-80 glycerylcocoate, PEG-200 glycerylseboate, PEG-8 dilaurate, PEG-10 distearate and mixtures thereof. Other useful nonionic emulsifiers include the polyhydroxy fatty acid amide emulsifiers corresponding to the structural formula: ## STR2 ## wherein: R1 is H, C1-C4 alkyl, 2-hydroxyethyl, 2- hydroxypropyl, preferably C 1 -C 4 alkyl, most preferably methyl or ethyl, more preferably methyl; R2 is C5-C3 alkyl or alkenyl, preferably C7-C19 alkyl or alkenyl, most preferably Cg-C17 alkyl or alkenyl, more preferably C11-C15 alkyl or alkenyl and Z is a polyhydroxyhydrocarbyl portion having a hydrocarbyl chain linear with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative (preferably ethoxylated or propoxylated) thereof. Z is preferably a sugar portion selected from the group consisting of glucose, fructose, maltose, lactose, galactose, mannose, xylose, and mixtures thereof. An especially preferred surfactant corresponding to the above structure is coconut alkyl-N-methyl glucosamide (ie, wherein the R2CO- portion is derived from coconut oil fatty acids). The processes for making compositions containing acid amides polyhydroxy fatty acids are described, for example, in the description of British Patent 809,060, published February 18, 1959 by Thomas Hedley & Co., Ltd., US Patent No. 2,965,576, to ER Wilson, issued December 20, 1960, US Patent No. 2,703,798, to AM Schwartz, issued March 18, 1955 and US Patent No. 1, 985,424, to Piggott , issued December 25, 1934 Among the preferred nonionic emulsifiers are those selected from the group consisting of stearth-21, ceteth-10, ceteth-20, sucrose cocoate, steareth-100, PEG-100 stearate and Mixtures thereof Other nonionic emulsifiers suitable for use herein include sugar esters and poesters, alkoxylated sugar esters and polyesters, Ci fatty acid esters of C- fatty alcohols. 30, alkoxylated derivatives of fatty acid esters of C 30 of C 30 fatty alcohols, alkoxylated ethers of C 30 fatty alcohols, polyglycrylic esters of Ci 30 fatty acids, esters of C 30 of polyols, ethers of Ci 30 of polyols, alkyl phosphates, polyoxyalkylene fatty ether phosphates, fatty acid amides, acylactates and mixtures thereof. Non-limiting examples of these emulsifiers which do not contain silicon include sorbitan polyethylene glycol monolaurate (polysorbate 20), ethylene glycol polyethylene glycol 5 , Ceteareth-20, methylglucose PPG-2 ether distearate, polysorbate 80, cetyl phosphate, potassium cetyl phosphate, diethanolamine cetylphosphate, sorbate 60, ghupril stearate, polyoxyethylene tepoate sorbitan (polysorbate 85), sorbitan monolaurate, sodium stearate of polyoxythylene 4 lauryl ether, polyglyceryl-4 isostearate, hexyl laurate, methyl glucose ether distearate of PPG-2 and mixtures thereof.

Other emulsifiers useful herein are mixtures of fatty acid esters based on a mixture of sorbitan or fatty acid ester of sorbitol and fatty acid ester of sucrose, the fatty acid in each case being preferably of C8-C2, very preferably C 1 -C 0 - The fatty acid ester emulsifier which is preferred is a mixture of C 1 -C 16 fatty acid ester of sorbitan or sorbitol with C 1 -C 16 sucrose fatty acid ester, especially sorbitan stearate and sucrose cocoate. This is commercially available from ICI under the name of Arlatone 2121. The hydrophilic emulsifiers useful herein may alternatively or additionally include any of a variety of cationic, anionic, zwitterionic and amphoteric emulsifiers such as those known in the art. See, for example, McCutcheon's Detergents and Emulsifiers, North American edition (1986), published by Allured Publishing Corporation; patent of E.U.A. No. 5,011, 681 to Cíotti et al., Issued April 30, 1991; patent of E.U.A. No. 4,421, 769 to Dixon et al, issued December 20, 1983; and patent of E.U.A. No. 3,755,560 to Dickert et al., Issued August 28, 1973. Exemplary cationic emulsifiers useful herein include those described in U.S. Pat. No. 5,515,209, to McCall et al. al, issued September 29, 1992, US Patent No. 5,151, 210 to Steup et al, issued September 29, 1992, US Patent No. 5,120,532 to Wells et al, issued July 9, 1992, patent of US No. 4,387,090 to Bolich, issued June 7, 1983, US Patent No. 3,155,591, Hilfer, issued November 3, 1964, US Patent No. 3,929,678 to Laughhn et al, issued December 30, 1975, patent of US No. 3,959,461, to Bailey et al, issued May 25, 1976, McCutcheon's Detergents & Emulsifiers, (North American edition 1979) MC Publishing Co and Schwartz, et al, Surface Active Agents Their Chemistrv and Technology, New York, Interscience Publishers (1949) Emulsifiers useful herein include cationic ammonium salts such as quaternary ammonium salts and Amino Amides A wide variety of ammonium emulsifiers are also useful herein. See, for example, U.S. Patent No. 3,929,678 to Laughlm et al, issued December 30, 1975 Non-limiting examples of ammonium emulsifiers include alkyl isethionates (e.g. C12-C30), alkyl and alkyl ether sulfates and salts thereof, alkyl and alkylether phosphates and salts thereof, alkylmethylaurates (for example, C12-C30 and soaps (for example, alkali metal salts, eg, sodium or potassium salts )) of fatty acids Amphotopic and zwitteponic emulsifiers are also useful herein Examples of amphotenne and zwitteripone emulsifiers which can be used eden to be used in the compositions of the present invention are those which are broadly described as derivatives of secondary aliphatic and tertiary amines in which the aliphatic radical can be straight or branched chain and wherein one of the aliphatic substituents contains from about 8 to about 22 carbon atoms (preferably C8-C? ) and one contains a solubilizing group in ammonium water, for example, carboxy, sulfonate, sulfate, phosphate or phosphonate. Examples are alkyliminoacetates and iminodyalkanoates and alumoalkanoates, imidazolinium and ammonium derivatives. Other suitable amphoteric or zwittenonic emulsifiers are those selected from the group consisting of betaines, sultaines, hydroxysultaines, alkylsarcosinates (eg, C12-C30), and alkanoylsarcosinates The emulsions of the present invention may also include an emulsifier containing silicone. A wide variety of silicone emulsifiers are useful herein. These silicone emulsifiers are typically organopohsiloxanes or mechanically modified, also known to those skilled in the art as silicone emulsifiers. Useful sihcon emulsifiers include dimeficone copolyols. These materials are polydimethylsiloxanes that have been modified to include side chains of polyetylene ether chains such as polyethylene oxide chains, polypropylene oxide chains. , mixtures of these chains and polyether chains containing portions derived from both ethylene oxide and propylene. Other examples include dimethicone copolyols modified with alkyl, ie, compounds containing pendant side chains of C2-C30. Other useful dimethicone copolyols include materials having various cationic, ammonium, amphoteric and zwitterionic pendant moieties.

The dimethicone copolyol emulsifiers useful herein can be described by the following general structure: wherein R is straight, branched or cyclic alkyl of C? _30 and R is selected from the group consisting of - (CH2) n-0- (CH2CHR30) mH, and - (CH2) n-0- (CH2CHR30) m- (CH2CHR40) or - H, wherein n is an integer from 3 to about 10; R3 and R4 are selected from the group consisting of H and straight or branched chain alkyl of C-i-Cß such that R3 and R4 are not simultaneously the same; and m, o, x and (y) are selected such that the molecule has a general molecular weight of about 200 to about 10,000,000, with m, o, x and (y) being independently selected from integers of zero or more such that myo are not both simultaneously zero, and z being independently selected from integers of 1 or more. It is recognized that the positional isomers of these copolyols can be achieved. The chemical representations illustrated above for the R2 portions that contain the groups R3 and R4 are not intended to be limiting but are shown as such for reasons of convenience. Also useful herein, although not strictly classified as dimethicone flakes, are the silicone emulsifiers as illustrated in the structures of the preceding paragraph wherein R2 is ~ (CH2) n-0-R5, wherein R5 is a cationic, ionic, amphotepic or zwitterionic moiety. Non-limiting examples of dimethicone copolyols and other silicone emulsifiers useful as the emulsifiers herein include copolymers of polydimethylsiloxane polyether with pendant polyethylene oxide side chains, polydimethylsiloxane polyether copolymers with pendant polypropylene oxide side chains, polydimethylsiloxane polyether copolymers with mixed polyethylene oxide and polypropylene oxide side chains, polydimethylsiloxane polyether copolymers with side chains of pol oxide (et? l eno) (propylene) mixed pendants, polydimethylsiloxane poheter copolymers with pendant organobetaine side chains, polydimethylsiloxane poheter copolymers with pendant carboxylate side chains, polyether polydimethylsiloxane copolymers with pendant quaternary ammonium side chains and also further modifications of the above copolymers containing straight, branched or cyclic pendant C.sub.2-3 alkyl moieties Examples of commercially available dimethylbenone copolyols useful herein sold by Dow Corning Corporation are Dow Corning.RTM. 190 wax, 193, Q2-5220, 2501, fluid 2-5324 and 3225C (the latter material being sold as a mixture of cyclomethicone). The cetyldimethicone copolyol is commercially available as a mixture with polyglyceryl-4 isothiarate and hexyl laurate, and is sold under the tradename ABIL® WE-09 (available from Goldschmidt). The cetyldimethicone copolyol is also commercially available as a mixture with hexyl laurate and polyglyceryl-3 oleate and cetyldimethicone, and is sold under the tradename ABIL® WS-08 (also available as Golschmidt). Other non-limiting examples of dimethicone copolyols also include lauryl dimethicone copolyol, dimethicone copolyol acetate, dimethicone copolyol adipate, dimethicone copolyol amine, dimethicone copolyol behenate, dimethicone copolyol butyl ether, dimethicone copolyol hydroxy stearate , dimethicone copolyol isostearate, dimethicone copolyol laurate, dimethicone copolyol methyl ether, dimethicone copolyol phosphate and dimeficone copolyol stearate. See, International Cosmetic Inqredient Dictionarv. fifth edition, 1993. The dimeficone copolyol emulsifiers useful herein are described, for example, in the US patent. No. 4,960,764. A Figueroa, Jr. et al., Issued October 2, 1990; European Patent No. EP 330,369 to SaNogueira, published August 30, 1989; G.H. Dahms, et al., "New Formulation Possibilities Offered by Silicone Copolyols", Cosmetics & Toiletries, vol. 110, pp. 91-100, March 1995; M. E. Carlotti et al., "Optimization of W / O-S Emulsions and Study of Quantitative Relationships Between Structure And Emulsion Properties ", J. Dispersion Science And Technology, 13 (3), 315-336 (1992); P. Hameyer, "Comparative Technological Investigations of Organic and Organosilicone Emulsifiers in Cosmetic Water-in-Oil Emulsion Preparations ", HAPPI 28 (4), pp. 88-128 (1991); J. Smid-Korbar et al.," Efficiency and Usability of Silicone Surfactants in Emulsions " Provisional Communication, International Journal of Cosmetic Science, 12, 135-139 (1990) and D.G. Krzysik et al., "A New Silicone Emulsify For Water-in-Oil System", Druq and Cosmetic Industry, vol. 146 (4) pp. 28-81 (April 1990).

Preferred emulsifiers are selected from the group consisting of sorbitan monostearate, sucrose cocoate, steareth-10, steareth-20, steareth-21, steareth-100, oleth-10, oleth-20, laureth-23, glycoside cetearyl, ceteth-10, ceteth-20, stearate of PEG-100 and mixtures thereof.

II. Dispenser The skin care equipment of the present invention comprises a dispenser for the skin care composition described above. This dispenser comprises a manually operated pump which is fixedly connected to an ergonomic container having a driver cover. As used herein, "fixedly" means that the pump is not easily removed from the container without destroying the dispenser. "Ergonomic" means that the dispenser has a shape that provides the user with a comfortable and easy grip. The user's hand must be satisfied easily to the shape of the container and actuator should be easily depressed substantially only with the movement of the tip either of the thumb or the index finger. The dispenser is configured in such a way that the pump matches the container. The application of E.U.A. Serial No. 08 / 784,488, filed January 17, 1997 by Lund et al, describes an ergonomic package and is incorporated herein by reference in its entirety. The container can be configured in a wide variety of ways including, but not limited to, substantially cylindrical, oval, elliptical, rectangular, triangular and combinations thereof. Preferably, the container has a substantially cylindrical shape, as shown in the figures contained herein. In Figure 1 there is illustrated a first embodiment of the invention showing the main components of a dispenser for the present skin care compositions, including a container 2, a top piece 3 extending therefrom, a lid of closure 4 for sealingly closing the dispenser and a follower piston 5 slidably mounted for displacement within the container 2. The upper part 3 is composed of a body 6 and a driver cover 7. The indual components of the dispenser 1 are made of injection moldable plastic, preferably polyethylene, polypropylene or polyethylene terephthalate, whereby the dispenser 1 is of a lightweight structure, and the present composition for the care of the The skin that is filled in the container 2 of the dispenser 1 is not affected by the material of the dispenser 1. The composition for skin care is advanced inside the container 2 by moving the follower piston 5 along the surface of the inner wall of the container 2 by the action thereon of the surrounding atmospheric pressure, whereby the container 2 is emptied from the lower part to the upper part during the use of the dispenser 1. In this way, the supply of the composition for the care of the skin inside the container 2 towards a supply mechanism incorporated in the upper piece 3 is secured in a simple way, and the generation of a vacuum inside the container 2 is prevented when supplying the composition for the skin care from the dispenser 1 as well as the outside air inlet to the interior of the container. The body 6 of the upper part 3 is offset radially inwards from the peripheral wall of the container 2 to thereby form a seat for the closed lid 4., allowing it to be seated on the container 2 in alignment with its peripheral wall surface, so that the dispenser 1 as a whole has a smooth exterior shape. The details of the first embodiment will now be explained with reference to Figure 2, which shows an enlarged illustration of the upper part 3 of Figure 1, including the closed lid 4, together with a more detailed illustration of the components of this embodiment. .

As shown in Figure 2, the upper end of the container 2 is formed with a shoulder 8 defining a peripheral surface with a retainer groove 9 which acts as a seating surface for the closed lid 4, the latter being formed with an inner annular projection 10 which will be received in the slot 9 when the dispenser 1 is closed, whereby the closure lid 4 and the container 2 are joined with their peripheral wall surfaces in alignment without a space between them. The upper end of the shoulder 8 is defined by an end wall 11 formed with a central opening 12. Integrally formed with the end wall 11 and axially extending therefrom is an outer sleeve 13 as a basic element of the cylinder body 6 that forms a axial extension of the container 2. The outer diameter of the outer sleeve 13 is smaller than that of the container 2 to provide sufficient space for the sliding displacement of the actuating cover 7 and for the application of the closed cover 4 in coaxial alignment with the container 2. An annular space 14 is defined within the outer sleeve 13 by an inner sleeve 15 inserted therein with its lower end resting on the end wall 11. The lower end portion of the inner sleeve 15 is formed with a peripheral outer shoulder 15a of a radial width corresponding to that of the annular space 14 for centering the inner sleeve or 15 inside the outer sleeve 13. The inner sleeve 15 is designed substantially in the form of a cup, a central lower portion of which it is formed as a closed flap 16 that covers the opening 12 of the end wall 11 and cooperates therewith to form a one-way valve. The closed flap 16 is preferably cut from the lower portion of the inner sleeve 15 along part of its periphery and connected in a pivotal manner (i.e., connected in such a way as to form a joint) to the remainder of said lower portion by a tape of integral material. This connection allows the closed flap 16 to be pivoted in one direction when a pressure inside the container 2 adjacent the opening 12 exceeds a pressure that remains on the closed flap 16. The outer sleeve 13 cooperates with the inner sleeve 15 to form guiding and retaining means for the actuating cap 7 acting simultaneously as the delivery mechanism of the dispenser 1. The actuator cap 7 has a generally cup-shaped configuration comprising a lower wall 17 and an annular outer wall 18. Within the defined space by the lower wall 17 and the outer wall 18, the actuator cover 7 is provided with a tubular section 19 composed in turn of two distinct portions, namely an axially extending and centrally located piston carrier tube 20, and a supply tube 21 extending therefrom to an obtuse angle adjacent to the lower wall 17 of the actuator cover 7. A piston n supply tube 22 is secured to piston carrier 20 provided for this purpose with a hollow extension 23 projecting axially within the actuator cap 7. The outer diameter of piston 22 is dimensioned so such that the piston 22 is in sealable and slidable engagement with the inner sleeve 15. The outer sleeve 13 is formed with upper and lower annular projections 25, 26, whose peripheral surfaces form a guide surface for the inner surface of the outer wall 18. of the actuator cover 7. A lower end portion of the actuator cover 7 is formed with an inwardly projecting annular rib 27 which cooperates with the annular projection 26 of the outer sleeve 13 to retain the actuator cap 7 on the outer sleeve 13 while it allows it to be displaced axially to drive the dispenser 1. The sealable sliding engagement of the supply piston 22 with the inner wall surface of the inner sleeve 15 results in the formation of a pump chamber 24 between a lower portion 28 of the piston supply 22 and the closed flap 16, the volume of the pump chamber 24 being variable in response to the axial displent of the actuator cover 7 and thus the supply piston 22. The lower portion 28 of the supply piston 22 is formed with an opening 29 covered by a flap Closed 30 inside the piston 22. The closed flap 30 is formed integrally and pivotally connected to a valve sleeve 31 inserted in the supply piston 22 and cooperates with the opening 29 to form a one-way valve. The valve sleeve 31 is inserted into the tubular extension 23 of the supply piston 22 and has a Closed flap 30 integrally connected thereto by a tape acting as a hinge. The supply piston 22 is secured to the piston carrier tube 20 by a snap connection. A coil spring 32 is disposed in the annular space 14 between the inner sleeve 15 and the outer sleeve 13 as a return spring for the actuating cap 7 and is held under compression between the outer annular shoulder 15a of the inner sleeve 15 and the lower wall 17 of the actuator cover 7, so that in the absence of an actuating force the actuating cover 7 is held in the position shown in FIG. 2 and determined by annular projections 26 and 27. The outer surface of the lower wall 17 of the actuating cover 7 forms a driving surface for the application of an axially outwardly directed driving force for supplying the skin care composition from the dispenser 1 through an outlet passage 33 formed by the tubular section 19. In order to avoid bent rectangular configuration disadvantageously of the outlet passage 33, the lower wall 17 of the actuator cover 7 extends substantially ally in a plane inclined with respect to the longitudinal axis of the dispenser 1. The dispenser 1 described above operates as follows: in the first actuation of the dispenser 1, it can be assumed that only the container 2 is filled with the composition for skin care , for the that the axial depression of the actuator cover 7 initially results in a "dead" stroke of the piston 22 to reduce the volume of the pump chamber 24. The resulting pressure rise in the pump chamber 24 causes the seal flap to close. of the piston 22 is lifted from the opening 29 in the lower portion of the piston 28 to thereby allow the air to escape from the pumping chamber 24 through the outlet passage 33. After the subsequent release of the actuating force acting on the actuator cover 7, the return spring 32 acts to return the actuating cover 7 upwards to its starting position, whereby the volume of the pumping chamber 24 increases again. The resulting vacuum inside the pump chamber 24 causes the closing flap 30 of the supply piston 22 to return to its rest position sealing the opening 29 and the closing flap 16 on the end wall 11 which will be lifted from the opening 12. to thereby allow the skin care composition to flow from the container 2 into the pump chamber 24 until a pressure equilibrium is established between the pump chamber 24 and the interior of the container 2, after which the closed flap 16 can be closed again on the opening 12 of the end wall 11. The renewed depression of the actuating lid 7 on the one hand causes the pressure acting on the closing flap 16 to be increased in this way completely interrupting the communication between the pumping chamber 24 and the interior of the container 2, as on the other hand it causes the closing flap 30 to be lifted out of the opening 29 in the lower portion 28 of the delivery piston 22, such that the skin care composition is expelled through the outlet passage 33, ie, through the piston carrying tube 20 and the supply tube 21. The amount of skin care composition supplied is thus determined by the length of the stroke of the piston which expels the product from the pump chamber 24 through the outlet passage 33. When the pressure acting on the actuator cover 7 is released again, the return spring 32 acts again to return the accliding cover 7 to its rest position, the resulting vacuum in the pumping chamber 24 causing the piston closing flap 30 be closed, this action being aided by the amount of the remaining product in the exit passage 33, which tends to be sucked back into the pump chamber 24 as long as the closed flap 30 has not been completely closed. At the same time, the vacuum generated in the pump chamber 24 causes the closed flap 16 between the product supply and the pumping chamber 24 to be opened, so that the skin care composition flows from the interior of the container 2 inside the pumping chamber 24 until the latter is again filled with the product and the closed flap 16 is allowed to return to its closed position on the end wall 11 by the pressure equilibrium established in this manner.

Of course, it is also possible to fill the pump chamber 24 with the skin care composition before the first actuation of the dispenser 1, so that the first depression of the actuator cover 7 results in the composition for the skin care is supplied from the dispenser 1. The additional embodiments of the invention refer to modifications in the design of the actuator cover 7 and / or internal and external sleeves 13 and 15, respectively, without this affecting the operating principle described above. In all these embodiments, the depression of the actuator cover 7 causes the skin care composition to be expelled from the pump chamber 24 through the outlet passage 33, while the return of the actuator cover to its position of rest causes a load of the skin care composition to be sucked into the pumping chamber 24 from the supply container 2. The individual components of the embodiments shown in figures 3 to 7 corresponding to those of the first embodiment of Figure 2 are designated by the same reference numerals. The embodiment of Figure 3 is different from that shown in Figure 2 by the absence of a valve sleeve inserted in the supply piston 22, instead of which a one-way valve is formed by the cooperation of the opening 29 in the lower portion 28 of the supply piston 22 with a closing element 34 formed integrally with the piston carrying tube 20 as a hinged flap projecting at right angles radially inward. This arrangement results in a closing element 34 being reliably driven in the closed direction to seal the opening 29 in the lower wall 28 of the supply piston 22. Alternatively, it is also possible to insert a separate one-way valve similar to that of the closing of the container opening 12 shown in figure 7 in the opening 29. The omission of the valve sleeve 31 allows the piston carrying tube 20 to be extended to a place close to the inner surface of the bottom of the piston 28, whereby the hollow extension 23 of the supply piston 22 can be made shorter. A further embodiment shown in Figures 4 and 5 is different from the previous ones by a modified assembly of the closed flap 32 of the one-way valve in the supply piston 22. In this embodiment the piston-carrying tube 20 is formed with a thickened wall segment 35 provided with an axially extending slot 36 for receiving therein a non-circular plastic arrow 37 to which a closed flap 32 is pivotably connected by an integrally formed tape portion. This solution ensures a reliable and uncomplicated positioning of the closing flap 32 over the opening 29 of the supply piston 22. Figure 6 shows a mode of the dispenser 1 in which a further reduction of the number of components of the upper part 3 is achieved by the provision that, in contrast to the previous modalities in wherein the inner and outer sleeves 13 and 15, respectively, are separately formed components, the two sleeves are now combined into an integral component in the form of a cylinder sleeve 38 having a U-shaped transverse configuration comprising a wall interior 39 and an outer wall 40 with a space therebetween for receiving and guiding a helical return spring 32 therein. The end wall 11 is provided with an integrally formed annular extension 41 in which the cylinder sleeve 38 is retained in a snap fit. Also modified with respect to the embodiments shown in Figures 1 and 5, is the design of the supply piston 22 and its mounting on the piston carrying tube 20. In the present example the free end of the piston carrying tube 20 is formed with an end portion 42 having a diameter larger than that of the rest of the piston carrying tube 20, whereby the circumferential outer surface of the piston carrying tube 20 defines a sink portion 43, while the respective portion of the surface inner wall of the piston carrier tube 20 forms a shoulder.

A valve sleeve 31 similar to that shown in Figure 2 is inserted in the enlarged end portion 42, and serves as a hinged assembly for the closed flap 30 of the one-way valve of the piston and at the same time covers the shoulder within the piston carrier tube 20, whereby the flow resistance for the skin care composition is not increased in this place of the exit passage 33.

The supply piston 22 is designed such that the hollow extension 23 forms an integral part of the sealing surface of the piston which slidably engages the inner wall 39 of the cylinder sleeve 38 together with a sealing edge upstream of the piston 22. The hollow extension 23 is formed with a restricted annular end portion 44 for snap-fit engagement with the submerged portion 43 defining an enlarged end portion 42 of the piston carrying tube 20. This arrangement allows the delivery plunger 22 it is mounted on the piston carrying tube 20 by simply pushing it on it, and then positively retained thereon, the position of the piston 22 and the state assembled in this way being defined by the valve sleeve 31 or the shoulder 42, respectively. In addition to the simplified mounting on the actuator cover 7 of all the components required to supply the skin care composition, this embodiment offers the advantage of improved stability and guidance of the actuator cover 7 thanks to the larger dimensions of the skin surface. sealing of the piston. The other guide of the actuator cover is achieved independently of it in a manner similar to that of the above embodiments by the use of annular projections 25 and 26 formed in this case on the outer wall 40 of the cylinder sleeve 38.

The closed flap 16 of the one-way valve in the upper part of the container 2 can be formed as a closed element separated or connected by a portion of tape to the inner wall 39 of the cylinder sleeve 38. This embodiment can be further simplified by omitting the annular extension 41 for mounting the cylindrical sleeve 48 and forming the double-walled cylinder sleeve 38 integrally with the wall end 11 of the container 2. In this embodiment the handling of the dispenser 1 is further facilitated by the provision that the portion of the lower wall 17 of the actuating lid 7 which receives the driving force to operate the dispenser 1 is inclined in opposite directions , so that a finger used for the drive is guided to the center of the outer lower wall surface for uniform application of the driving force to the drive cover 7. Likewise, in this mode the dispenser operates in the manner described with reference to figure 2. An additional simplified structure of the delivery mechanism 1 of the dispenser 1 is shown in FIG. 7. In this case a double-walled structure of the cylinder body 3 in the form of separate inner and outer sleeves or in the form of a double-walled sleeve for guiding the supply piston 22 is omitted, instead of which a single guide sleeve 44 is formed integrally with the end wall 11 of the container 2, the inner wall surface of the guide sleeve 44 serving to slideably guide the piston 22, while its surface of The outer wall is designed to guide and retain the annular wall 18 of the actuator cover 7 thereon. The mounting of the supply piston 22 on the piston carrying tube 20 has the same structure as that of Figure 2. The annular upper end surface of the guide sleeve 44 has an increased width due to the presence of the upper annular projection 25 for act as a support surface for the coil spring 32, the other end of which is supported by the bottom wall 17 of the actuator cover 7. The outside diameter of the coil spring 32 is selected such that the interior surface of the wall annular 18 of the actuator cover 7 act as a guide for the spring 32, the lower wall of the actuating lid 7 optionally being formed with an annular groove for centering the spring 32. This solution is characterized not only by the greatest possible simplification of the structure of all the components, but also by increasing the volume of the chamber pumping 24 to a maximum, this volume being of course effective in determining the quantity of product supplied by a single operation of the actuator cover 7. This mode of the dispenser 1 is then particularly suitable for dosing and supplying relatively larger amounts of the composition for skin care Apart from the valve components for the two one-way valves, this mode of the dispenser 1 essentially consists of only three separate components, namely the container 2 with guide sleeve 44, the supply piston 22 and the actuator cover 7, these components being adapted to be easily assembled with the coil spring 32 interposed therebetween. At the same time this small number of components of top parts ensures a reliable and precise dosing and supply of the composition for skin care from the container 2 through the outlet passage 33 The assembly of this dispenser is thus extremely simple, requiring simply the press fit of the delivery piston 22 on the piston carrier tube 20 with the valve sleeve 31 interposed therebetween, and the mounting of the actuator cover 7 on the guide sleeve 44 The closing flap 16 of the one-way valve at the bottom of the pump chamber 24 is preferably integrally formed and is pivotally connected to a sleeve 34 mounted in the opening 12 of the end wall 11 of the container 2 by an adjustment assembly at simple pressure Since in this embodiment the volume of the pumping chamber 24 is substantially increased, the correspondingly increased volume discharge of the skin care composition can be made faster by substantially increasing the diameter of the piston carrier tube 20 and in this way the available volume of the outlet passage 33, whereby the structure of the supply piston 22 is similar to that shown in the other figures. The delivery piston 22 can also be integrally formed with the piston carrier tube 20, so that its hollow extension 23 can omit. In this case the closed flap 30 is integrally hinged to the lower portion 28 of the supply piston 22 on the inner side thereof. Within the basic concept of the invention the dispenser can be further modified, for example by replacing the coil spring 32 with an elastic plastic spring or a similar injection molded element of a similar type to that of the remaining components of the dispenser 1. The structure of the One-way valves in the upper part of the container 2 and within the supply piston 22 can also be modified in view of the nature and consistency of the skin care composition to be supplied. The dispenser can be used for any application related to the dosage delivery of skin care compositions, such as for medical applications, cosmetic applications and body care applications. The result of the present invention is a skin care product that includes a dispenser comprising a delivery piston mechanism for extracting and supplying said compositions from a supply container, without deteriorating the reliability and precision of dosing a dispatcher of this type. The actuator cover with its supply piston combines the dosing and delivery functions with the dispenser drive function, resulting in a compact and simple structure of the dispenser upper part in combination with a simplification of the structure of the individual components and a reduction of your number. Suitable dischargers are further described in U.S. Patent No. 4,875,604, issued to Czech, October 24, 1989, and which is incorporated in the present reference manner in its entirety. A preferred embodiment of the present invention comprises a skin care composition contained in a dispenser, wherein the composition comprises an oil in water emulsion, a polymeric thickener, a reflective particulate material selected from the group consisting of TIO2 , ZnO, ZrO2 and mixtures thereof, wherein the composition has a viscosity of about 20,000 to about 100,000 and a pH of about 4 to about 8. In another preferred embodiment, the light emollient is selected from the group consisting of isohexadecane, isopropyl isostearate, methyl isostearate, ethyl isostearate, isononyl sonononoate, dimethicone and mixtures thereof; The emulsifier of the skin care composition is selected from the group consisting of sorbitan monostearate, sucrose cocoate, steareth-10, steareth-20, steareth-21, steareth-100, oleth-10, oleth-20, laureth-23, cetearyl glucoside, ceteth-10, ceteth-20, stearate of PEG-100 and mixtures thereof; and the composition further comprises niacinamide (an active for skin care). In another preferred embodiment, the present skin care equipment comprises a skin care composition contained within a dispenser and the composition comprises an emulsion that contains at least one hydrophobic phase with a light emollient, at least one hydrophilic phase, an emulsifier having an HLB of at least 6, a reflective particulate material and a vitamin B3 compound, wherein the composition has a viscosity from about 15,000 cps to about 200,000 cps and a pH from about 3 to about 9. In addition, the dispenser comprises a manually operated pump fixedly connected to an ergonomic container having an actuator cap, and wherein the dispenser is configured so that the pump match the container and the container has a shape that provides a comfortable and easy grip by a human hand. The hand should easily conform to the shape of the container and the actuator can be depressed substantially only with the movement of the tip of either the thumb or the index finger. In another embodiment, the skin care composition comprises an oil in water emulsion with at least one hydrophobic phase having an oil and a light emollient selected from the group consisting of isohexadecane, isopropyl isostearate, methyl stearate. , ethyl isostearate, isononyl isonononoate, dimethicone and a mixture thereof; at least one hydrophilic phase comprising water; and an emulsifier selected from the group consisting of sorbitan monostearate, sucrose cocoate, steareth-10, steareth-20, steareth-21, steareth-100, oleth-10, oleth-20, laureth-23, cetearyl glucoside, ceteth -10, ceteth-20, stearate of PEG-100, and mixtures thereof; a polymeric thickening agent; a reflective particulate material selected from the group that consists of Ti 2, ZnO, Zr 2 and mixtures thereof, and niacinamide; wherein the composition has a viscosity of about 25,000 cps at about 60,000 cps and a pH of about 5 to about 7. lll. Optional Components The skin care compositions of the present invention may comprise a wide variety of optional components, so long as said optional components are physically and chemically compatible with the essential components described herein, and do not improperly deteriorate the stability, efficacy or other benefits of use associated with the compositions of the present invention. The optional components may be dispersed, dissolved or the like, in the vehicle of the present compositions. The optional components include aesthetic agents and active agents. For example, the compositions may include, in addition to the essential components of the invention, absorbers (including oil absorbers such as clays and polymeric absorbents), abrasives, anti-caking agents, anti-foaming agents, antimicrobial agents ( for example, a compound capable of destroying microbes, preventing the development of microbes or preventing the pathogenic action of microbes and useful, for example, to control acne and / or preserve the topical composition), binders, biological additives, regulatory agents of pH, volume agents, chemical agents, cosmetic biocides, denaturants, cosmetic astringents, drug astringents, external analgesics, film formers, humectants, opacifying agents, fragrances, perfumes, pigments, dyes, essential oils, skin sensitizers, emollients , skin refreshing agents, skin healing agents, pH adjusters, plasticizers, preservatives, preservative improvers, propellants, reducing agents, skin conditioning agents, skin penetration enhancing agents, skin protection agents skin, solvents, suspending agents, emulsifiers, thickening agents, solubilizing agents, polymers to aid the film-forming properties and substantivity of the composition (such as a copolymer of eicosene and vimlpyrrolidone), an example of which is available from GAF Chemical Corporation as Ganex® V-220), waxes, sunscreens, sunscreens, ultraviolet light absorbers or dispersing agents, agents for sunless tanning, antioxidants and / or radical scavengers , chelating agents, sequestrants, anti-acne agents, anti-inflammatory agents, anti-androgens, depilation agents, peeling agents / exfoliants, organic hydroxyacids, vitamins and derivatives thereof (including dispersible or water-soluble vitamins such as vitamin C and ascorbyl phosphates), compounds that stimulate the production of collagen and natural extracts All of these materials are known in the art Non-exclusive examples of such materials are deciphered in Harrv's Cosmeticoloav. 7a ed., Harry & Wiikinson (Hill Publishers, London, 1982); in Pharmaceutical Dosaqe Forms-disperse Systems; Lieberman, RiegerS Banker, vols. 1 (1988) & 2 (1989); Marcel Decker, Inc .; in The Chemistry and Manufacture of Cosmetics, 2nd. ed., deNavarre (Van Nostrand 1962-1965); and in The Handbook of Cosmetic Science and Technology, 1 ra. ed., Knowlton & Pearce (Elsevier 1993) which can also be used in the present invention.

A. Thickening agent (including thickeners and chelating agents) The compositions of the present invention may also comprise a thickening agent, preferably about 0.1% to about 5%, most preferably about 0.15% to about 4% and more preferably about from 0.2% to about 3%, of a thickening agent. Non-limiting classes of thickening agents include those selected from the group consisting of: 1) Carboxylic acid polymers These polymers are crosslinked compounds containing one or more monomers derived from acrylic acid, substituted acrylic acids, and salts and esters of these acrylic acids and substituted acrylic acids, wherein the crosslinking agent contains two or more carbon-carbon double bonds and is derived from a polyhydric alcohol. The Preferred carboxylic acid polymers are of two general types. The first type of polymer is an entangled homopolymer of a mopomer of acrylic acid or derivative thereof (eg, wherein the acrylic acid has substituents at the positions of the two and three carbons selected. independently of the group consisting of C 1-4 alkyl, -CN, -COOH, and mixtures thereof) The second type of polymer is an interlaced copolymer having a first monomer selected from the group consisting of an acrylic acid monomer or derivative thereof (as described in the previous sentence), a short chain alcohol acrylic ester monomer (ie, a C 1-4) or derivative thereof (eg, wherein the acrylic acid portion) of the ester has substitutes at the positions of carbons two and three independently selected from the group consisting of C 1-4 alkyl, -CN, -COOH, and mixtures thereof), and mixtures of the same, and a second monomer which is a long chain alcohol acrylic ester (ie, C8-C or) ester monomer or derivative thereof (eg, wherein the acrylic acid portion of the ester has substituents on it). the positions of carbons two and three independently selected from the group consisting of C 1-4 alkyl, -CN, -COOH, and mixtures thereof) The combinations of these two types of polymers are also useful in the present In the first type of intertwined homopolymers, the monomers are preferably selected from the group consisting of acrylic acid, methacrylic acid, ethacrylic acid, and mixtures thereof, the acrylic acid the most preferred. In the second type of entangled copolymers, the acrylic acid monomer or derivative thereof is preferably selected from the group consisting of acrylic acid, methacrylic acid, ethacrylic acid, and mixtures thereof, with acrylic acid, methacrylic acid and mixtures of the same, the most preferred. The short chain alcohol acrylate ester monomer or derivative thereof is preferably selected from the group consisting of C1.4 alcohol acrylate esters, C1-4 alcohol methacrylate esters, alcohol ethacrylate esters of C ^, and mixtures thereof, being most preferred the C1-4 alcohol acrylate esters, C? Alcohol methacrylate esters. 4, and mixtures thereof. The long chain alcohol acrylate ester monomer is selected from the C8-40 alkyl acrylate esters, the C10-30 alkyl acrylate esters being preferred. The entanglement agent in both types of polymers is a polyalkenyl polyether of a polyhydric alcohol that confers more than one group of alkenyl ether per molecule, wherein the original polyhydric alcohol contains at least 3 carbon atoms and at least three hydroxyl groups. Preferred entanglement agents are those selected from the group consisting of allylic ethers of sucrose and allylic ethers of pentaerythritol, and mixtures thereof. These polymers useful in the present invention are described in greater detail in the U.S.A. No. 5,087,445, to Haffey et. al., issued on February 11, 1992; the patent of E.U.A. No. 4,509,949 to Huang et. al., issued on April 5, 1985; the patent of E.U.A. No. 2,798,053, to Brown, issued July 2, 1957. See also, CTFA International Cosmetic Inqredient Dictionarv, 4a. edition, 1991, pp. 12 and 80. Examples of commercially available homopolymers of the first type useful herein include carbomers, which are homopolymers of acrylic acid crosslinked with allyl ethers of sucrose or pentaerythritol. Carbomers are available as the Carbopol® 900 series from B. F. Goodrich (for example, Carbopol® 954). Examples of commercially available copolymers of the second type useful herein include copolymers of C10-30 alkyl acrylates with one or more monomers of acrylic acid, methacrylic acid or one of their short chain esters (ie, C1- 4), wherein the entanglement agent is an allyl ether of sucrose or pentaerythritol. These copolymers are known as C polí-30 / acrylate alkyl acrylate cross-linked polymers, and are commercially available as Carbopol® 1342, Carbopol® 1382, Pemulen TR-1 and Pemulen TR-2, from B. F. Goodrich. In other words, examples of polymeric carboxylic acid thickeners useful herein are those selected from the group consisting of carbomers, C polí-30 acrylate alkyl acrylate cross-linked polymers, and mixtures thereof. 2) Interlaced polyacrylate polymers Interlaced polyacrylate polymers useful as thickeners or gelling agents include both cationic and polymers non-ionic, generally preferring the cationic ones. Examples of useful interlaced nonionic polyacrylate polymers and crosslinked cationic polyacrylate polymers are those described in the U.S.A. 5,100,660, to Hawe et. al., issued on March 31, 1992; the patent of E.U.A. 4,849,484, to Heard, issued July 18, 1989; the patent of E.U.A. 4,835,206, to Farrar et. al., issued May 30, 1989; the patent of E.U.A. 4,628,078 to Glover et. al., issued on December 9, 1986; the patent of E.U.A. 4,599,379, to Flesher et. al., issued July 8, 1986; and EP 228,868, to Farrar et. al., published July 15, 1987. Interlaced polyacrylate polymers are high molecular weight materials that can be characterized by the general formula: (A)? (B) m (C) n and comprise the monomer units (A) ?, (B) m. and (C) n, wherein (A) is a dialkylaminoalkyl acrylate monomer or its acid addition salt or quaternary ammonium salt, (B) is a dialkylaminoalkyl methacrylate monomer or its acid addition salt or ammonium salt quaternary, (C) is a monomer that can be polymerized with (A) or (B), for example a monomer having a carbon-carbon double bond or another such functional group that can be polymerized, I is an integer of 0 or greater , m is an integer of 0 or greater, n is an integer of 0 or greater, but where either I or m, or both, must be 1 or greater. The monomer (C) can be selected from any of the monomers commonly used. Non-limiting examples of these monomers include ethylene, propylene, butylene, isobutylene, eicosene, maleic anhydride, acrylic acid, methacrylamide, maleic acid, acrolein, cyclohexene, ethyl vinyl ether and methylvinyl ether. In the cationic polymers of the present invention, (C) is preferably acrylamide. The alkyl portions of the monomers (A) and (B) are short chain length alkyls, such as C -? - C8, preferably C1-C5, more preferably C1-C3, and most preferably still C? -C2. When quatemized, the polymers are preferably quaternized with short chain alkyls, ie, C? -C8, preferably C1-C5, more preferably C1-C3, and most preferably still C? -C2. Acid addition salts refer to polymers having protonated amino groups. Acid addition salts can be made through the use of halogen acids (eg chloride), acetic, phosphoric, nitric acids, citrus and others. These polymers (A)? (B) m (C) n also comprise an entanglement agent, which is almost always a material containing two or more unsaturated functional groups. The entanglement agent is reacted with the monomer units of the polymer and is incorporated into the polymer, whereby it forms covalent bonds or bonds between two or more individual polymer chains or between two or more sections of the same polymer chain. Non-limiting examples of suitable entanglement agents include those selected from the group consisting of methylenebisacrylamides, diallylalkylammonium halides, polyalkenyl polyethers of polyhydric alcohols, allyl acrylates, vinyl oxyalkyl acrylates and polyfunctional vinylidenes. The specific examples of agents of interlayers useful herein include those selected from the group consisting of methylenebisacrylamide, ethylene glycol di- (meth) acrylate, di- (meth) acrylamide, cyanomethylacrylate, vinyloxyethylacrylate, vinyloxyethyl methacrylate, allyl pentaerythritol, diallyl ether of trimethylolpropane, allyl sucrose, butadiene , isoprene, divinylbenzene, dlvinylnaphthalene, ethyl vinyl ether, methyl vinyl ether and allyl acrylate. Other entanglement agents include formaldehyde and glyoxal. Methylene bisacrylamide is used herein as an entanglement agent. The widely varying amounts of the agent of The entanglement can be used depending on the desired properties in the final polymer, for example, crosslinking effect. Without being limited to theory, it is believed that the incorporation of an entanglement agent in these cationic polymers provides a material that is a more effective viscosifying agent without negative effects, such as mail and degradation of viscosity in the presence of electrolytes. The entanglement agent, when present, may include from about 1 ppm to about 1000 ppm, preferably from about 5 ppm to about 750 ppm, more preferably from about 25 ppm to about 500 ppm, more preferably still from about 100 ppm to about 500 ppm, and even more preferably from about 250 ppm to about 500 ppm of the total weight of the polymer on a weight / weight basis.

The intrinsic viscosity of the entangled polymer, measured in a one molar sodium chloride solution at 25 ° C, is generally above 6, preferably from about 8 to about 14. The molecular weight (average weight) of the entangled polymers of the present is high and it is believed that it is almost always between about 1 million and about 30 million. The specific molecular weight is not critical, and higher or lower weight average molecular weights may be employed, as long as the polymer retains the intended viscosity effects. Preferably, a 1.0% solution of the polymer (on an active ingredient basis) in deionized water will have a viscosity at 25 ° C of at least about 20,000 cP, preferably at least about 30,000 cP, when measured at 20 RPM by a RVT Brookfield (Brookfield Engi- neering Laboratories, Inc. Stoughton, MA, USA). These cationic polymers can be made by polymerizing an aqueous solution containing from about 20% to about 60%, generally from about 25% to about 40%, of monomer by weight, in the presence of an initiator (usually from oxide-reduction or thermal) until the polymerization is complete. The entanglement agent can also be added to the solution of the monomers to be polymerized, to be incorporated into the polymer. In polymerization reactions, in general, the temperature starts between about 0 ° C and 95 ° C. The polymerization can be conducted by forming a reverse phase dispersion of an aqueous phase of the monomers (and also any additional entanglement agent) in a non-aqueous liquid, for example, mineral oil, lanolin, isododecane, oleyl alcohol, and other volatile and non-volatile esters and alcohols, and the like. All percentages describing the polymer in this section of the description herein are molars, unless otherwise specified. When the polymer contains monomer (C), the molar ratio of monomer (C), based on the total molar amount of (A), (B) and (C), can be from 0% to about 99%. The proportions of (A) and (B) can each be from 0% to 100%. When the acrylamide is used as the monomer (C), it will preferably be used at a level of from about 20% to about 99%, more preferably from about 50% to about 90%. Where both monomers (A) and (B) are present, the ratio of the monomer (A) to the monomer (B) in the final polymer on a molar basis, is preferably from 99: 5 to about 15:85, more preferably from about 80:20 to about 20:80. Alternatively, in another class of polymers, the ratio is from about 5:95 to about 50:50, preferably from about 5:95 to about 25:75. In another alternative class of polymers the ratio (A) :( B) is from about 50:50 to about 85:15. Preferably, the ratio (A) :( B) is from about 60:40 to about 85:15, more preferably from 75:25 to about 85:15.

Most preferred is when the monomer (A) is not present and the monomer (B) monomer ratio (C) is from about 30 70 to about 70 30, preferably from about 40 60 to about 6040, and more preferably from about 45 55 to about 5545 The cationic polymers which are useful herein and which are especially preferred are those corresponding to the general structure (A)? (B) m (C) n where I is zero (B) is methyl quaternized dimethylaminoethyl metaplate, the ratio of (B) (C) is from about 45 to about 5545, and the entanglement agent is methylenebisacplamide. An example of such a cationic polymer is one that is commercially available as a dispersion in mineral oil (which may also include auxiliary dispersant vanes such as PPG-1 tpdeceth-6) under the trade name Saleare® SC92 from Allied Colloids Ltd (Norfolk Virginia) This polymer has the proposed designation CTFA, "P olicuatermo 32 (y) mineral oil "Other catimic polymers useful herein are those that do not contain acplamide or other monomers (C), that is, n is zero. In these polymers the monomer components (A) and (B) are as they were previously defined An especially preferred group of these polymers that do not contain acplamide is one where I is also zero. In this case, the polymer is basically a homopolymer of a dialkylaminoalkyl meta-plate monomer or its acid addition salt or quaternary ammonium salt These dialkylaminoalkyl metacrate polymers preferably contain an entanglement agent as described above. A cationic polymer, which is essentially a homopolymer, useful herein is one corresponding to the general structure (A)? (B) m (C) n wherein I is zero, (B) is methyl quaternized dimethylaminoethyl metacplate, n is zero, and the entanglement agent is methylenebisacplamide. An example of said homopolymer is commercially available as a mixture containing about 50% of the polymer, approximately 44%. % mineral oil, and about 6% PPG-1 tpdeceth-6 as a dispersing aid, from Alhed Colloids Ltd, (Norfolk, VA) under the trade name Saleare® SC95 This polymer has recently been given the CTFA designation "Policuatermo 37 (y) mineral oil (y) PPG-1 Tr? Deceth-6" 3) Polyacrylamide Polymers Also useful herein are pohacplamide polymers, especially non-ionic polyacrylamide polymers including substituted branched or unbranched polymers. These polymers can be formed from a wide variety of monomers including acplamide and metacplamide which are substituted or unsubstituted with one or two alkyl groups (preferably Ci to C5) Acplatoamide and metacplatoamide monomers are preferred in which the amide nitrogen is unsubstituted, or substituted with one or two Ci to C5 alkyl groups (preferably methyl, ethyl or propyl), for example, acplamide, metacplamide, N-metacplamide, N-methylmethacplamide, N, N-dimethylmethacplamide, N-isopropylacplamide, N-isopropylmethacplamide, and N, N-dimethylampramide These polymers have a molecular weight greater than 1,000,000 preferably greater than about 1,5,000,000 and ranging up to about 30,000,000 Among these polyacrylamide polymers, especially preferred is the nonionic polymer having the CTFA designation of polyacrylamide and isoparaffin and laureth-7, available under the trade name Sepigel 305 from Seppic Corporation (Fairfield, NJ) Other polyaprylamide polymers useful herein include multiple block copolymers of acplamides and acrylic acid substituted acrylic substitutes. Commercially available examples of these multiple block copolymers include Hypan SR150H, SS500V , SS500W, SSSA100H, from Lipo Chemicals, Ine, (Patterson, NJ) 4) Polysaccharides A wide variety of polysaccharides is useful herein. "Polysaccharides" refers to gelling agents that contain a base structure of repeated sugar units (ie, carbohydrates). Non-limiting examples of polysaccharide gelling agents include those selected. of the group consisting of cellulose, carboxymethylhydroxyethylcellulose, cellulose acetate propionate carboxylate, hydroxyethyl cellulose, hydroxyethyl ethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, mephylhydroxyethyl cellulose, microcrystalline cellulose, sodium cellulose sulfate, and mixtures thereof. Also useful herein are celluloses substituted with alkyl. In these polymers, the hydroxy groups of the cellulose polymer is hydroxyalkylated (preferably hydroxyethyl or hydroxypropyl) to form a hydroxyalkylated cellulose which is then modified with a C10-C30 straight or branched chain alkyl group via an ether linkage. Typically, these polymers are ethers of straight or branched C10-C30 chain alcohols with hydroxyalkyl celluloses. Examples of alkyl groups useful herein include those selected from the group consisting of stearyl, isostearyl, lauryl, myristyl, cetyl, isocetyl, cocoyl (i.e. alkyl groups obtained from coconut oil alcohols), palmityl, oleyl, linoleyl, linolenyl , ricinoleyl, behenyl, and mixtures thereof. Among the alkylhydroxyalkylcellulose ethers is the material which has received the CTFA designation of cetylhydroxyethylcellulose, which is the ether of cetyl alcohol and hydroxyethylcellulose. This material is sold under the trade name Natrosol® CS Plus, from Aqualon Corporation. Other useful polysaccharides include scleroglucans comprising a linear chain of (1-> 3) linked units of glucose with one (1-> 6) glucose linked every three units, a commercially available example being Clearogel ™ CS11 by Michel Mercíer Products Inc. (Mountainside, NJ).

) Gums Other additional gelling agents and thickeners useful herein include materials that are derived primarily from natural sources. Non-limiting examples of these gelling agent gums include materials selected from the group consisting of acacia, agar, algin, alginic acid, ammonium alginate, amylopectin, calcium alginate, calcium carrageenan, carnitine, carrageenan, dextrin, gelatin, gum gelano, guar gum, guar hydroxypropyltrimonium chloride, hectorite, hyaluronic acid, hydrated silica, hydroxypropylchitosan, hydroxypropylguar, karaya gum, seaweed, locust bean gum, natto gum, potassium alginate, potassium carrageenan, propylene glycol alginate, gum sclerotium, sodium carboxymethyldextran, sodium carrageenan, tragacanth gum, xanthan gum, and mixtures thereof. 6) Vinyl ether / maleic anhydride crosslinkers Other additional thickening and gelling agents useful herein include crosslinked copolymers of alkyl vinyl ethers and maleic anhydride. In these copolymers, the vinyl ethers are represented by the formula R-0-CH == CH2 wherein R is a C1-C6 alkyl group, preferably R is methyl. Preferred entanglement agents are C4-C20 dienes, preferably C6 to C16 dienes, and more preferably C8 to C12 dienes. A particularly preferred copolymer is that which is formed of methyl vinyl ether and maleic anhydride, where the copolymer has been entangled with decadiene, and where the polymer, when diluted as a 0.5% aqueous solution at a pH of 7 and 25 ° C, have a viscosity of 50,000-70,000 cps when measured using a Brookfield viscometer RTV, spindle # 7 at 10 rpm. This copolymer has the cross-linked CTFA designation of PVM / MA decadiene and is commercially available as Stabileze ™ 06 from International Specialty Products (Wayne NJ). 7) Interlaced Poly (vinylpyrrolidones) The entangled polyvinyl (N-irr -lrololidones) useful herein as additional thickeners and gelling agents include those described in the U.S.A. No. 5,139,770, to Shih et al., Issued August 18, 1992, and the US patent. No. 5,073,614, to Shih et.al., issued December 17, 1991, both patents are hereby incorporated by reference in their entirety. Typically, these gelling agents contain from about 0.25% to about 1% by weight of an entanglement agent selected from the group consisting of divinyl ethers and diallyl ethers of terminal diols containing from about 2 to about 12 carbon atoms, divinyl ethers and diallyl ethers of polyethylene glycols containing from about 2 to about 600 units, dienes having from about 6 to about 20 carbon atoms, divinylbenzene, vinyl and allylic ethers of pentaerythritol, and the like. Normally, these gelling agents have a viscosity of about 25,000 cps at about 40,000 cps when measured as a 5% aqueous solution at 25 ° C using a Brookfield RVT viscometer with # 6 spindle at 10 rpm. Commercially available examples of these polymers include ACP-1120, ACP-1179, and ACP-1180, available from International Specialty Products (Wayne, NJ) Thickening agents that are suitable for use herein also include those described in US Patent No 4,387,107, to Klein et al, June 7, 1983, and "Encyclopedia of Polymer and Thickeners for Cosmetics," R and Lochhead and W R Fron, eds, Cosmetics & Toiletpes. vol 108, pp 95-135 (May 1993) Preferred compositions of the present invention include a thickening agent selected from the group consisting of carboxylic acid polymers, crosslinked polycarbonate polymers, polyacrylamide polymers, and mixtures thereof, most preferably selected of the group consisting of interlaced polymers of poplate, pohacplamide polymers, and mixtures thereof B Particle Reflective Material The compositions of the present invention may optionally comprise from about 0.1% to about 2%, preferably from about 0.1% to about 1.5%, more preferably from about 0.2% to about 1%. %, by weight of the composition, of a reflective particulate material dispersed throughout the hydrophilic phase of the emulsion. These materials provide a visible improvement in the condition of the skin essentially immediately after application of the composition to the skin. Said immediate improvement consists of covering or masking imperfections of the skin, such as texture discontinuities (including those associated with aging of the skin, such as enlarged pores), and / or providing a more uniform skin tone or color. . Preferred metal oxides include TiO2, ZnO, Zr02 and combinations thereof, more preferably? O2, ZnO, and combinations thereof (the combinations are designed to include particles comprising one or more of these materials as well as mixtures of these materials in particles). The particulate material can be a mixed material, for example, deposited on a core or mixed with other materials such as, but not limited to, silica, silicone, mica, nylon and polyacrylates, as long as the material has the refractive index previously mentioned. The particulate material preferably consists of essential form of Ti0, ZnO, Zr0 or a combination thereof, more preferably Ti02, ZnO a combination thereof; more preferably, the particles essentially consist of Ti02. The preferred particulate reflective materials are pigmentary grade. Preferred particulate reflective materials are those having a primary particle size of about 100 nm to about 300 nm, more preferably more than 100 nm to about 300 nm, still more preferably about 150 nm to about 300 nm, more preferably from about 200 nm to about 250 nm (e.g., about 220 to about 240 nm), in pure form (ie, in the essentially pure form and in powder before its combination with any vehicle). The particulate reflective materials that are preferred have a primary particle size when dispersed in the composition from about 100 nm to about 1000 nm (preferably more than 100 nm), more preferably from about 100 nm to about 400 nm, including more preferably from about 200 nm to about 300 nm. The primary particle size can be determined using the designation of ASTM E20-85"Standard Practice for Particle Size Analysis of Particulate Substances in the Range of 0.2 to 75 Micrometers by Optical Microscopy". ASTM Volume 14.02, 1993. Particles can have a variety of shapes, including spherical, spheroidal, elliptical, laminar, irregular, needle and bar, provided that the desired refractive index is provided. The particulate material can have a variety of physical forms, including rutile, anatase or a combination thereof. The particulate reflective material may be water dispersible, dispersible in oil or a combination thereof. The dispersibility in water or oil may be inherent to the particle or may be imparted by coating the particles with a material imparting a hydrophilic or hydrophobic surface to the particles. For example, hydrophilic coatings can understand an amino acid, aluminum oxide or aluminum silicate. Examples of hydrophobic coatings may comprise organosilicon compounds or metal soaps, such as aluminum stearate, aluminum laurate and zinc stearate. In addition, a coating with load can be added to prevent agglomeration. Preferred compositions comprise a reflective particulate material comprising a metal oxide which is coated with a coating material that confers a net charge that is greater than the zeta potential of the uncoated particulate reflective material. Typically, the coating material confers a The zeta potential that is greater than about ± 20 mV (e.g., in the positive or negative direction) at pH from about 4 to about 8.5. This provides stability of the formulation and avoids the agglomeration of the reflective materials into particles. The particulate materials and their fillers are well known to those skilled in the art, and are well described in R. J. Hunter, Zeta Potential in Colloid Science: Principles and Application (1981), published by Academic Press; J. N. Israelachvili, Intermolecular and Surface Forces: With Applications to Colloidal and Bioloqical Systems (1985), published by Academic Press: and Hoogeven, N. G. et al., Colloids and Surfaces. Physiochemical and Engineering Aspects, Vol. 117, p. 77 (1966). Suitable coating materials that confer a cationic charge include cationic polymers (natural and / or synthetic) and cationic surfactants. Cationic coating materials Preferred are selected from the group consisting of chitosan, hydroxypropyl chitosan, quatemium-80, polyquatemium-7, and mixtures thereof. Non-limiting examples of coating materials that confer an anionic charge include anionic polymers (natural and / or synthetic) and anionic surfactants. Preferred anionic coating materials are selected from the group consisting of ammonium polyacrylate, sodium polyacrylate, potassium polyacrylate, ethylene acrylic acid copolymer, polysiloxane copolymer-wheat hydrolyzed protein, dimeficone copolyol phosphate, dimethicone copolyol acetate , dimethicone copolyol laurate, dimethicone copolyol stearate, dimethicone copolyol behenate, dimethicone copolyol isostearate, dimethicone copolyol hydroxystearate, phosphate ester, sodium chondroitin sulfate, sodium hyaluronate, ammonium hyaluronate, alginate sodium, ammonium alglonate, ammonium laurate, sodium laurate, potassium laurate, ammonium myristate, sodium myristate, potassium myristate, ammonium palmitate, sodium palmitate, potassium palmitate, ammonium stearate, sodium stearate , potassium stearate, ammonium oleate, sodium oleate, potassium oleate, and mixtures thereof. More preferred are the anionic coating materials selected from the group consisting of ammonium polyacrylate, sodium polyacrylate, and mixtures thereof. Reflective materials in inorganic particles, for example, comprising Ti02, ZnO or Zr02 are commercially available from a number of sources. Non-limiting examples of reflective materials in suitable particles are available from Warner Jenkinson (C-9729, a Ti02 in the form of hydrophobic anatase treated with dimethicone); U.S. Cosmetics (TRONOX Ti02 series, for example AT-T-CR837, a Ti02 treated with amino acid, hydrophilic and rutile, AT-T328, a hydrophilic TIO2 treated with amino acid in the form of anatase and SAT-T CR837, a TIO2 in rutile form) and Kobo (TRONOX Ti02 series, eg, ST490, a TiO2 treated with silane in rutile form). Reflective particulate materials are available in essentially pure and powder form or predispersed in various types of dispersants, including but not limited to, isopropyl isostearate., sopropyl palmitate, methyl stearate, Finsolv TN, cyclomethicone and copolyols of cyclomethicone and dimethicone. The particulate reflective material useful in the compositions of the present invention will generally have a refractive index of at least about 2, more preferably at least about 2.5 (eg, from about 2 to about 3). The refractive index can be determined by conventional methods. For example, a method for determining the refractive index that is applicable to the present invention is described in J. A. Dean, ed., Lange's Handbook of Chemistry, fourteenth edition, McGraw Hill, New York, 1992, Section 9, Refractometry.

C. Structuring Agent The compositions herein may contain a structuring agent. Structuring agents are particularly preferred in the oil-in-water emulsions of the present invention. Without being limited by theory; it is believed that the structuring agent helps to provide biological characteristics to the composition that contribute to the stability of the composition. For example, the structuring agent tends to facilitate the formation of the liquid crystal gel network structure. The structuring agent can also function as an emulsifier or surfactant. Preferred compositions of this invention comprise from about 1% to about 20%, more preferably from about 1% to about 10%, more preferably from about 2% to about 9% of one or more structuring agents. Preferred structuring agents are those having an HLB of about 1 to about 8 and having a melting point of at least 45 ° C. Suitable structuring agents are those selected from the group consisting of saturated C14 to C30 fatty alcohols, saturated C-ie to C30 fatty alcohols containing from about 1 to about 5 moles of ethylene oxide, diols from Cie to C30 saturated, saturated C-? 6 to C30 monoglycerol ethers, saturated C? 6 to C0 hydroxylic fatty acids, hydroxylated and non-hydroxylated saturated fatty acids from Cp to C0, saturated ethoxylated fatty acids from Cu to C30, amines and alcohols containing about 1 to about 5 moles of ethylene oxide diols, saturated glyceryl monoesters of Cu to C30 having a monoglyceride content of at least 40%, saturated polyglycerol esters of Cu to C30 having from about 1 to about 3 alkyl groups and about 2 to about 3 units of saturated glycerol, glyceryl monoethers of C14 to C30, mono / diesters of sorbitan of C14 to C30, mono / diesters of sorbitan ethoxylates saturated of C14 to C30 with about 1 to about 5 moles of epylene oxide, esters of saturated methylglycosides of C14 to C30, saturated mono / diesters of saturated sucrose of C14 to C30, esters of ethoxylated methylglucosides saturated of C to C30 with about 1 to about 5 moles of ethylene oxide, saturated polyglucosides of C to C30 having an average of between 1 to 2 glucose units, and mixtures thereof, which have a melting point of at least about 45 ° C. Preferred structuring agents of the present invention are selected from the group consisting of stearic acid, palmitic acid, stearyl alcohol, cetyl alcohol, behenyl alcohol, stearic acid, palmitic acid, polyethylene glycol ether and distearyl alcohols having an average of about 1. to about 5 units of ethylene oxide, polyethylene glycol ether of cetyl alcohol having an average of about 1 to about 5 ethylene oxide units, and mixtures thereof. The most preferred structuring agents of the present invention are selected from the group consisting of stearyl alcohol, cetyl alcohol, behenyl alcohol, polyethylene glycol ether of silyl alcohol having an average of about 2 units of ethylene oxide (steareth-2), the polyethylene glycol ether of cetyl alcohol having an average of about 2 units of ethylene, and mixtures thereof. Even more preferred structuring agents are selected from the group consisting of stearic acid, palmitic acid, stearyl alcohol, cetyl alcohol, behenyl alcohol, steareth-2, and mixtures thereof.

D. Active agent for skin care The compositions of the invention may optionally comprise a safe and effective amount of an active agent for skin care, preferably from about 0.1% to about 20%, more preferably from about 0.15% to about 10%, and most preferably from about 0.2% to about 7.5%. These materials are those that manifest the benefits of appearance of the skin following the chronic precaution of the composition containing these materials. Materials that provide such benefits include, but are not limited to, vitamin B3 compounds, retinoids, antioxidants / radical scavengers, and combinations thereof. Specific examples of these active agents include the following. 1 Vitamin B3 Compounds Vitamin B3 compounds increase skin conditioning benefits in the present invention, including regulation signals of skin aging, more especially wrinkles, lines and pores. The compositions of the present invention preferably comprise from about 0.01% to about 50%, more preferably from about 0.1% to about 10%, even more preferably from about 0.5% to about 10% and even more preferably from about 1% to about 5%, more preferably from about 2% to about 5%, of the vitamin B3 compound. As used herein, "vitamin B3 compound" refers to a compound that has the formula: wherein R is -CONH2 (for example, niacinamide), -COOH (for example, nicotinic acid) or -CH2OH (for example, nicotilinic alcohol), derivatives thereof and salts of any of the foregoing. Examples of derivatives of the above vitamin B3 compounds include ethers of nicotinic acid, including non-vasodilating esters of nicotinic acid, nicotinic amino acids, esters of picotinyl alcohol of carboxylic acids, N-oxide of nicotinic acid and N-oxide of niacinamide. Suitable esters of nicotinic acid include esters of C 1 -C 22 nicotinic acid. preferably C1-C16, more preferably C6-C6 alcohols. The alcohols are suitably straight chain or branched chain, cyclic or acyclic, saturated or unsaturated (including aromatic), and substituted or unsubstituted. The esters of preference are non-vasodilators. As used herein "non-vasodilators" refers to that the ester does not commonly produce a visible flow response after application to the skin of the target compositions (the majority of the general population does not experience a visible flow response, although said compounds can cause vasodilatation not visible to the exposed eye, ie, the ester is non-blinding). Non-vasodilating esters of nicotinic acid include tocopherol nicotinate and inositol hexanicotinate; the tocopherol nicotinate is preferred. Other derivatives of the vitamin B3 compound are the niacinamide derivatives which result from the substitution of one or more of the hydrogens of the amide group. Non-limiting examples of niocinamide derivatives useful herein include nicotinyl amino acids, derivatives, for example, of the reaction of an activated nicotinic acid compound (eg, nicotinic acid azide or nicotinyl chloride) with an amino acid, and esters of Nicotinyl alcohol of organic carboxylic acids (for example, CtC? 8). Specific examples of such derivatives include nicotinuric acid (C8H8N203) and nicotinylhydroxamic acid (C6H6N2? 2), which have the following chemical structures mcotinduco acid nicotimlhydroxamic acid Examples of nicotinyl alcohol esters include nicotilic alcohol esters of carboxylic acids, fatty acid, acetic acid, ghcolic acid, palmitic acid and the like. Other non-limiting examples of the vitamin B3 compounds useful herein are 2-chloron? cofinam? da, 6-aminonicofinamida, 6-met? ln? cot? nam? da, n-methyl-mcotinamida, n, n-dietilmcotinamida, n- (h? drox? met? l) -n? cot? nam? da, quinolmco acid imide, nicotinamide, n-benzylmcotinamide, n-ethylmcotinamide, mfenazone, mcotinaldheido, isomcotymic acid, mephysilisomatinic acid, thio cotinamide, malamide, 1- (3-p? pd? lmet? l) urea, acid -2-mercapton? Cotin? Co, nicomol, and niaprazine Examples of the above vitamin B3 compounds are well known in the art and are commercially available from a number of sources, for example, the Sigma Chemical Company (St.

Louis, MO); ICN Biomedicals, Inc. (Irvin, CA) and Aldrich Chemical (Milwaukee, Wl). One or more vitamin B3 compounds can be used herein. The compounds of vitamin B3 are niacinamide and tocopherol nicotinate. Niacinamide is the most preferred. When they used, the salts, derivatives, and derivatives of niacinamide salts are preferably those which have substantially the same efficacy as niacinamide in the skin condition regulation methods described herein. The salts of the vitamin B3 compound are also useful herein. Non-limiting examples of salts of vitamin B3 compound useful herein include organic or inorganic salts, such as inorganic salts with inorganic ammonium species (e.g., chloride, bromide, iodide, carbonate, preferably chloride), and carboxylic acid salts (including mono-, di- and tricarboxylic acid salts of C1-C18, for example, acetate, salicylate, glycolate, lactate, malate, citrate, preferably salts of monocarboxylic acid such as acetate). These and other salts of the vitamin B3 compound can be easily prepared by the person skilled in the art, for example, as described by W. Wenner, "The Reaction of L-Ascorbic and D-losascorbic Acid with Nicotinic Acid and Its Amide ", J. Organic Chemistry, Vol. 14, 22-26 (1949), which is incorporated herein by reference.Wenner describes the synthesis of the ascorbic acid salt of niacinamide.In a preferred embodiment, the ring of the vitamin B3 compound is chemically free substantially (for example unbound and / or unimpeded), or after the supply to the skin chemically becomes substantially free ("chemically free" is hereinafter referred to alternative to "without complex") More preferably, the vitamin B3 compound is essentially without complex.Therefore, if the composition contains the vitamin B3 compound in a salt or other form with complex, said complex preferably is substantially reversible , more preferably essentially reversible, in the delivery of the composition to the skin For example, said complex should be substantially reversible at a pH of about 5.0 to about 6.0. It can be easily determined by the person skilled in the art.

More preferably, the vitamin B3 compound is substantially free of complex in the composition prior to delivery to the skin. Examples of approaches to minimize or avoid the formation of undesirable complexes include the omission of materials whose form is substantially irreversible or other complexes with the vitamin B3 compound, pH adjustment, ionic strength adjustment, the use of surfactants, and formulations in where the vitamin B3 compound and materials whose complex in the same is in different phases. Such approaches are within the skill level of the person skilled in the art. Thus, in a preferred embodiment, the vitamin B compound contains a limited amount of the salt form and is more preferably free of salts in substantial form of a vitamin B3 compound. Preferably the vitamin B3 compound contains less than about 50% of said salt, and more preferably essentially free of the salt form. The vitamin B3 compound in the compositions herein has a pH of about 4 to about 7 which typically contains less than about 50% of the salt form. The vitamin B3 compound can be included as the substantially pure material, or as an extract obtained by adequate physical and / or chemical isolation from natural sources (e.g., plants). The vitamin B3 compound is preferably substantially pure, more preferably essentially pure. 2) Retinoids Retinoids improve the benefits of skin appearance in the present invention, especially the regulation of skin condition, including regulation signals of skin aging, more especially wrinkles, lines and pores. As used herein, "retinoid" includes all natural and / or synthetic analogs of vitamin A compound or the like retinol that possess the biological activity of vitamin A in the skin as well as the geometric isomers and stereoisomers of said compounds. Retinoid is preferably retinol, retinol esters (eg, C2-C22 retinoxychal esters, including retinyl palmitate, retinyl acetate, retinyl propionate), retinal, and / or retinoic acid (including all trans and retinoic acid). / or 13-cis-retinoic acid), more preferably retinoids other than retinoic acid. These compounds are well known in the art and are commercially available from a number of sources, for example, Sigma Chemical Company (St. Louis, MO), and Boerhinger Mannheim (Indíanapolis, IN). Other retinoids that are useful herein are described in the U.S. Patents. Nos. 4,677,120, issued June 30, 1987 to Parish et al; 4,885,311, issued December 5, 1989 to Parish et al; 5,049,584, issued September 17, 1991 to Purcell et al; 5,124,356, issued June 23, 1992 to Purcell et al.; and reissue 34,075, issued September 22, 1992 to Purcell et al. Other suitable retinoids are tocopheryl retinoate [retinoic acid tocopheryl ester (trans or cis), adapalene. { 6- [3- (1-adamantyl) -4-methoxyphenyl] -2-naphtholic acid], and tazarotene (ethyl 6- [2- (4,4-dimethylthiochroman-6-yl) -etinyl] nicotinate). One or more retinoids can be used herein. Preferred refinoids are retinol, retinyl palmitate, retinyl acetate, retinyl propionate, retinal and combinations thereof. Most preferred are retinol and retinyl palmitate.

The retinoid can be included as the substantially pure material, or an extract obtained by adequate physical and / or chemical isolation from natural sources (e.g., plants). The retinoid is preferably substantially pure, more preferably essentially pure. The compositions of this invention contain a safe and effective amount of the retinoid, so that the resulting composition is safe and effective for regulating the condition of the skin, preferably to regulate visible and / or tactile discontinuities in the skin, more preferably to regulate signs of skin aging, even more preferably to regulate visible and / or tactile discontinuities in skin texture associated with skin aging. The compositions preferably contain from about 0.005% to about 2%, more preferably from 0.01% to about 2% retinoid. Retinol is most preferably used in an amount of from about 0.01% to about 0.15%; the refinol esters are more preferably used in an amount of from about 0.01% to about 2% (e.g., about 1%); the retinoic acids are more preferably used in an amount of from about 0.01% to about 0.25%; Tocopheryl retinoate, adapalene, and tazarotene are most preferably used in an amount of from about 0.01% to about 2%. In a preferred embodiment, the composition confers a retinoid and a vitamin B3 compound. The retinoid is preferably used in the above, and the vitamin B3 compound is preferably used in a range of from about 0.1% to about 10%, more preferably from about 2% to about 5%. 3) Antioxidants / radical scavengers The compositions of the present invention may optionally include an antioxidant / radical scavenger. The antioxidant sweeper / sweeper is especially useful to provide protection against UV radiation that can cause increased scaling or texture change in the stratum corneum and against other environmental agents that can cause skin damage. A safe and effective amount of an antioxidant / radical scavenger may be added to the compositions of the present invention, preferably from about 0.1% to about 10%, more preferably from about 1% to about 5%, of the composition . Antioxidants / radical scavengers such as ascorbic acid (vitamin C) and its salts, ascorbic fatty acid esters, ascorbic acid derivatives (eg, magnesium ascorbyl phosphate), tocopherol (vitamin E), tocopherol sorbate can be used. , tocopherol acetate, other tocopherol esters, butylated hydroxybenzoic acids and their salts, 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid (commercially available under the name Trolox®), gallic acid and its alkyl esters especially propylgalate, uric acid and its alkyl salts and esters, sorbic acid and its salts, amines (eg, N, N-diethylhydroxylamine, amino guanidine), sulfhydryl compounds (eg, gutationa), dihydroxyfenic acid and its salts, pidolate of lícina, arginine pilolate, nordihidroguayarético acid, bioflavonoides, lysine, methionine, proline, superoxide dismutase, silímarina, tea extracts, extracts of seed / grape skin, melanin, and rosamarin extracts. Preferred anti-oxidants / radical scavengers are selected from tocopherol sorbate and other tocopherol esters, more preferably tocopherol sorbate. For example, the use of tocopherol sorbate in topical compositions and applicable to the present invention is described in the U.S.A. No. 4,847,071, issued July 11, 1989 to Donald L. Bisset, Rodney D. Bush and Ranjit Chatterjee. 4) Organic hydroxy acids The compositions of the present invention may optionally comprise an organic hydroxy acid. Suitable hydroxy acids include hydroxy acids of C? -C18, preferably of C8 or less. The hydroxy acids can be substituted or unsubstituted, straight chain, branched chain or cyclic (preferably straight chain), and saturated or unsaturated (mono- or poly-unsaturated) (preferably saturated). Non-limiting examples of suitable hydroxy acids include salicylic acid, glycolic acid, lactic acid, 5-octanoylsalicylic acid, hydroxyoctanoic acid, hydroxycaprylic acid, and lanolin fatty acids. The preferred concentrations of the scale of organic hydroxy acids are from about 0.1% to about 10%, more preferably from about 0.2% to about 5%, also preferably from about 0.5% to about 2%. Salicylic acid is preferred. Organic hydroxy acids improve the skin appearance benefits in the present invention. For example, organic hydroxy acids tend to improve the texture of the skin.

E. Additional skin conditioning components Preferred compositions of the present invention optionally comprise additional skin conditioning components. These conditioning components of the skin are useful to lubricate the skin, increasing the smoothness and elasticity of the skin, preventing or relieving the dryness of the skin, moisturizing the skin, and / or protecting the skin. These skin conditioning components increase the skin appearance improvements in the present invention. The additional skin conditioning component is preferably selected from the group consisting of additional emollients (eg, from medium to heavy), humectants, and mixtures thereof (these additional skin conditioning components can be categorized or described herein) for its therapeutic and / or cosmetic benefit or its supposed mode of action, however, it will be understood that the skin conditioning components useful herein may, in some cases, provide more than a cosmetic and / or therapeutic effect, such as absorbency, structuring, etc., or function through more than one mode of action. Therefore, the classifications herein are made for reasons of convenience and are not intended to limit an ingredient to the particular application (s) mentioned above). The skin conditioning component is preferably present at a level of at least about 0.1%, more preferably from about 1% to about 99%, even more preferably from about 1% to about 50%, even more preferably about from 2% to about 30%, and most preferably from about 5% to about 25% (e.g., from about 5% to about 10% or 15%). Suitable emollients can be selected from one or more of the following classes: triglyceride esters including, but not limited to, vegetable and animal fats and oils such as castor oil, cocoa butter, safflower oil, seed oil cotton, corn oil, olive oil, cod liver oil, almond oil, avocado oil, palm oil, sesame oil, squalene, kikui oil and soybean oil; esters of acetoglycerides such as acetylated monoglycerides; ethoxylated glycerides such as ethoxylated glyceryl monostearate; alkyl esters of fatty acids having from 10 to 20 carbon atoms including, but not limited to, methyl, isopropyl and butyl esters of fatty acids such as hexyl laurate, isohexyl laurate, isohexyl palmitate, methyl palmitate , deciloleate, oleate isodecyl, hexadecyl stearate, decyl stearate, diisopropyl adipate, diisohexyl adipate, dihexyldecyl adipate, diisopropyl sebacate, lauryl lactate, myristyl lactate and cetyl lactate; alkenyl esters of fatty acids having from 10 to 20 carbon atoms such as oleyl orthistate, oleyl stearate and oleyl oleate; fatty acids having from 10 to 20 carbon atoms such as pelargonic, lauric, myristic, palmiferous, stearic, stereostaric, hydroxystearic, oleic, linoleic, ricinoleic, arachidic, behenic and erucic acids; fatty alcohols having from 10 to 20 carbon atoms such as lauryl, myristyl, cetyl, hexadecyl, stearyl, isostearyl, hydroxystearyl, oleic, ricinolelic, behenyl, erucyl and 2-octyl dodecanyl alcohols; lanolin and lanolin derivatives such as lanolin, lanolin oil, lanolin wax, lanolin alcohols, lanolin fatty acids, sopropyl lanolate, ethoxylated cholesterol, propoxylated lanolin alcohols, acetylated lanolin alcohols, lanolin alcohol linoleate, lanolin alcohol ricinoleate, lanolin alcohol ricinoleate acetate, ethoxylated ester-alcohol acetate, lanolin hydrogenolysis, ethoxylated hydrogenated lanolin, and liquid and semi-solid lanolin absorption bases; esters of polyhydric alcohols such as mono- and di-esters of ethylene glycol fatty acid, mono- and di-esters of diethylene glycol fatty acid, mono- and di-esters of polyethylene glycol fatty acid (200-6000), mono- and esters of propylene glycol fatty acid, polypropylene glycol monooleate 2000, polypropylene glycol monostearate 2000, ethoxylated propylene glycol monostearate, mono- and di- glyceryl fatty acid esters, polyglycerol polyglyceryl esters, glyceryl ethoxylated monostearate, 1,2-butylene glycol monostearate, 1,2-butylene glycol distearate, sorbitan fatty acid esters and polyoxyethylene sorbitol fatty acid esters; esters of waxes such as beeswax, whale sperm, myristyl myristate and stearyl stearate; beeswax derivatives such as polyoxyethylene sorbitol beeswax, which are reaction products of beeswax with ethoxylated sorbitol of varying content of ethylene oxide, forming a mixture of ether esters; vegetable waxes including, but not limited to, carnauba and candelilla waxes; phospholipids such as lecithin and its derivatives; sterols that include, but are not limited to, cholesterol and cholesterol fatty acid esters; and amides such as fatty acid amides, ethoxylated fatty acid amides and solid fatty acid alkpolamides. Suitable humectants include those of the polyhydric alcohol type. Typical polyhydric alcohols include polyalkylene glycols, and more preferably alkylene polyols and their derivatives, including propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol, and derivatives thereof (eg, PEG-2, PEG-3, PEG-30, PEG-500, etc.). ), sorbitol, hydroxypropyl sorbitol, erythritol, treitol, pentaerythritol, xylitol, glucitol, mannitol, hexylene glycol, butylene glycol (eg, 1,3-butylene glycol), hexanetriol (eg, 1, 2,6-hexanetriol), glycerol, glycerol ethoxylated, propoxylated glycerol, sodium 2-pyrrolidone-5-carboxylate, soluble collagen, dibutyl phthalate, gelatin, and mixtures thereof.

Also useful herein are guanidine; glycolic acid and glycolate salts (for example, ammonium and quaternary alkylammonium); lactic acid and lactate salts (for example, ammonium and quaternary alkylammonium); Aloe vera in any of its variety of forms (for example, Aloe vera gel); sugar and starch derivatives (eg, alkoxylated glucose); hyaluronic acid and derivatives thereof (e.g., salt derivatives such as sodium hyaluronate); lactamide monoethanolamine; acetamide monoethanolamine; urea; panthenol; sugars; starches; silicone fluids; silicone gums; and mixtures thereof. Also useful are the propoxylated glycerols described in the U.S.A. No. 4,976,953. Other useful conditioning compounds include the various CrC30 monoesters and polyesters of sugars and related materials, as described herein in relation to the hydrophobic phase of the emulsion.

F. Solar filters and solar blogidoresres Exposure to ultraviolet light can result in flaking and excessive textural changes of the corneal extract. Therefore, the compositions of the present invention preferably contain a sunscreen or sunscreen. The right sunscreens or sunscreens can be organic or inorganic. A wide variety of conventional sunscreen agents is suitable for use herein. Sagarin, et al., In chapter VIII, pages 189 and consecutively, from Cosmetics Science and Technology, 1972), describes numerous suitable agents, and is incorporated herein by reference. Examples of suitable sunscreen agents include, for example: p-aminobenzoic acid, its salts and its derivatives (ethyl, isobutyl, glyceryl esters, p-dimethylaminobenzoic acid); anthranilates (for example, o-aminobenzoates; methyl, menthyl, phenyl, benzyl, phenylethyl, linalyl, terpinyl and cyclohexenyl esters); salicylates (amyl esters, phenyl, octyl, benzyl, menthyl, glyceryl and di-propeglycolic esters); cinnamic acid derivatives (menthyl and benzyl esters, a-phenylcinnamonitrile, butylcinnamoyl pyruvate); dihydroxycinnamic acid derivatives (umbelliferous, mephylumbelliferone, methylaceto-umbelliferone); Trihydroxy cinnamic acid derivatives (esculetin, methylesculetin, daphnetin, and the glucosides, esculin and daphine); hydrocarbons (diphenylbutadiene, stilbene); dibenzalacetone and benzalacetophenone; naphtholsulfonates (sodium salts of 2-naphthol-3,6-disulfonic acid and 2-naphthol-6,8-disulfonic acid); dihydroxynaphthoic acid and its salts; o- and p-hiodroxibifenildisulfopatos; coumarin derivatives (7-hydroxy, 7-methyl, 3-phenyl); diazoles (2-acetyl-3-bromoindazole, phenylbenzoxazole, methylnaphthoxazole, various arylbenzothiazoles); quinine salts (bisulfate, sulfate, chloride, oleate and tannate); quinoline derivatives (salts of 8-hydroxyquinoline, 2-phenylquinoline); Hydroxy- or methoxy-substituted benzophenones; uric and violuric acids; tannic acid and its derivatives (for example, hexaethyl ether); (butylcarbotol) (6-propylpiperonyl) ether; hydroquinone; benzophenones (oxibenzene, sulisobenzone, dioxybenzone, benzoresorcinol, 2,2 ', 4,4'-tetrahydroxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, octabenzone; 4-isopropyldibenzoylmethane; Butylmethoxydibenzoylmethane; etocrylene; octocrylene; [3- (4'-methylbenzyldenboman-2-one) and 4-isopropyl-di-benzoylmethane. Of the above, preferred are 2-ethylhexyl-p-methoxycinnamate (commercially available as PARSOL MCX), 4,4'-t-butylmethoxybenzoyl-methane (commercially available as PARSOL 1789), 2-hydroxy-4-methoxybenzophenone, acid octyldimethyl-p-aminobenzoic acid, digaloyltrloleate, 2,2-dihydroxy-4-methoxybenzophenol, ethyl-4- (bis (hydroxypropyl)) aminobenzoate, 2-ethylhexyl-2-cyano-3,3-diphenylacrylate, 2-ethylhexyl- salicylate, glyceryl-p-aminobenzoate, 3,3,5-tri-methylcyclohexylsalicylate, methylanthranilate, p-dimethyl-aminobenzoic acid or aminobenzoate, 2-ethylhexyl-p-dimethyl-amino-benzoate, 2-phenylbenzimidazole-5-sulfonic acid, 2- (p-dimethylaminophenyl) -5-sulfonibenzoxazoic acid, octocrylene, and mixtures of these compounds. The most preferred organic sunscreens useful in the compositions useful in the present invention are 2-ethylhexyl-p-methoxycinnamate, butylmethoxydibenzoyl-methane, 2-hydroxy-4-methoxybenzophenone, 2-phenylbenzimidazole-5-sulfonic acid, octyldimethyl-p-acid. -aminobenzoic, octocrylene, and mixtures thereof. Also particularly useful in the compositions are sunscreens such as those described in the U.S.A. No. 4,937,370 issued to Sabatelli on June 26, 1990, and patent of E.U.A. No. 4,999,186 issued to Sabatellí and Spirnak on March 12, 1991, which they are incorporated herein by reference. Said sunscreen agents described herein have, in a single molecule, two different chromophore portions that show different absorption spectra of ultraviolet radiation. One portion of the chromophore absorbs predominantly on the UVB radiation scale and the other is strongly absorbed on the UVA radiation scale. Preferred members of this class of sunscreen agents are the 4-N, N- (2-ethylhexyl) -methylaminobenzoic acid ester of 2,4-dihydroxybenzophenone; N, N-di- (2-ethylhexyl) -4-aminobenzoic acid ester with 4-hydroxydibenzoylmethane; 4-N, N- (2-ethylhexyl) methyl-aminobenzoic acid ester with 4-hydroxydibenzoylmethane; 4-N, N- (2-ethylhexyl) methyl-aminobenzoic acid ester of 2-hydroxy-4- (2-hydroxyethoxy) benzophenone; 4-N, N- (2-ethylhexyl) methyl-aminobenzoic acid ester of 4- (2-hydroxyethoxy) dibenzoylmethane; N, N-di- (2-ethylhexyl) -4-aminobenzoic acid ester of 2-hydroxy-4- (2-hydroxyethoxy) benzophenone; and N, N-di- (2-ethylhexyl) -4-aminobenzoic acid ester of 4- (2-hydroxyethoxy) dibenzoylmethane, and mixtures thereof. Especially preferred sunscreens or sunscreens include butylmethoxydibenzoylmethane, 2-ethylhexyl-p-methoxycinnamate, phenylbenzimidazole sulfonic acid, and octocrylene. A safe and effective amount of the sunscreen or sunscreen is used, typically from about 1% to about 20%, more typically from about 2% to about 10%. The Exact amounts will vary depending on the sunscreen selected and the desired sun protection factor (SPF). An agent can also be added to any of the compositions useful in the present invention to improve the substantivity of the skin of said compositions, particularly to improve their resistance to washing by water, or by rubbing. A preferred agent that will provide this benefit is a copolymer of ethylene and acrylic acid. The compositions comprising this copolymer are described in the U.S.A. 4,663,157, Brock, issued May 5, 1987.

G. Chelators As used herein, "chelating agent" refers to an active agent capable of removing a metal ion from a system by forming a complex such that the metal ion can not be easily divided or catalyzed in chemical reactions. The inclusion of a chelating agent is especially useful to provide protection against UV radiation that may contribute to excessive desquamation or changes in skin texture and against other environmental agents that may cause skin damage.

A safe and effective amount of a chelating agent can be added to the compositions of the present invention, preferably from about 0.1% to about 10%, more preferably from about 1% to about 5%, of the composition. Examples of chelating agents that are useful herein are described in the patent of E.U.A. 5,487,884, issued 1/30/96 to Bissett et al .; International Publication No. 91/16035, Bush et al., Published 10/31/95; and International Publication No. 91/16034, Bush et al., published 10/31/95. Preferred chelators useful in the compositions of the present invention are furildioxime and derivatives thereof. The compounds mentioned above can be incorporated individually or in combination.

Methods for regulating the condition of the skin The compositions of the present invention are useful for regulating the skin condition of mammals (especially human skin, specifically the skin of a human face), including visible and / or tactile discontinuities. in the skin, for example visible and / or tactile discontinuities in the texture of the skin, more specifically discontinuities associated with the aging of the skin. The regulation of the condition of the skin involves applying topically to the skin a safe and effective amount of a composition of the present invention. The amount of the composition applied, the frequency of application and the period of use, will vary widely, depending on the active levels of a given composition and the level of regulation desired. A large scale of amounts of the compositions of the present invention can be used to provide a sensation benefit and / or appearance to the skin. The amounts of the present compositions that are typically applied per application are, in mg composition / cm2 of skin, from about 0.1 mg / cm2 to about 10 mg / cm2. A particularly useful application amount is about 2 mg / cm2. Typically applications are given in the order of once a day; however, the frequency of application may vary from about once a week to approximately three times per day or more. Preferred compositions of this invention containing a particulate reflective material provide a visible improvement in the condition of the skin essentially after application of the composition to the skin. Such immediate improvement involves covering or hiding skin imperfections such as texture discontinuities (including those associated with skin aging, such as large pores), and providing a more even skin tone or color.

EXAMPLES The following examples best describe and demonstrate the embodiments within the scope of the present invention. The examples are given solely for the purpose of illustration, and are not intended to be limiting of the present invention, since many variations thereof are possible without departing from the spirit and scope of the invention. When applicable, the ingredients are given under the CTFA name.

Although particular embodiments of the present invention have been described, it will be obvious to one skilled in the art that various changes and modifications can be made to the present invention without departing from the spirit and scope thereof. It is intended to cover, in the appended claims, all modifications that are within the scope of the present invention.

EXAMPLES 1 AND 2 Oil-in-water emulsion compositions are prepared from the following ingredients using conventional formulation techniques.

A C1-C30 monoester or polyester of sugars, and one or more portions of carboxylic acid as described herein, preferably a sucrose polyester in which the degree of esterification is from 7 to 8, and in which the fatty acid portions are C18 and behenic mono- and / or unsaturated, at a molar ratio of unsaturated portions: behenic from 1: 7 to 3: 5, more preferably the octaester of sucrose, in which there are about 7 portions of behenic fatty acid and about 1 portion of oleic acid in the molecule, for example, sucrose ester of cottonseed oil fatty acids, eg, cotonato of SEFA. 2 A predispersion of ammonium polyacrylate treated with T02, water and glycerin. First, the ingredients of phase A are mixed (using a propellant-type mixer) in a suitable size container and heated to 70-75 ° C. In a separate container mix the ingredients of phase B and heat between 70 and 75 ° C. At said temperature, phase B is added to phase A while mixing continues. Subsequently, phase C is added to the mixture of batches of phases A / B continuing with the mixing. The component of phase C allows the neutralization of the mixture. In a separate vessel, phase D is mixed until it is uniform and is then added to the mixture of batches of A / B / C phases continuing with the mixture. It is cooled to 50 ° C. The ingredients of phase E are mixed until uniform and then added to the mixture of batches of phases A-D continuing with the mixture. Subsequently the ingredients of phase F are added to the mixture of A-E and it is continued cooling until about 35 ° C. The mixing continues until the resulting batch mixture is uniform. Once the batch mixture is uniform, the resulting composition is introduced into a suitable dispenser, as described herein.

EXAMPLES 3 TO 6 Oil-in-water emulsion compositions are prepared from the following ingredients using conventional formulation techniques. 1 A C1-C30 monoester or polyester of sugars, and one or more portions of carboxylic acid as described herein, preferably a polyester of sucrose in which the degree of stenfication is from 7 to 8, and in which the fatty acid portions are mono- and / or di-unsaturated of C18 and behenics, at a molar ratio of unsaturated portions: behenic from 1: 7 to 3: 5, more preferably the octaester of sucrose, in which there are approximately 7 portions of behenic fatty acid and about 1 portion of oleic acid in the molecule, for example, sucrose ester of cottonseed oil fatty acids, for example, SEFA cotonate. 2 A predispersion of ammonium polyacrylate treated with TIO2, water and glycerin. 3 A mixture of polyacrylamide, isoparaffin and laureth-7. Mix the premixes A-D as described above in Examples 1 to 2, and cool the mixture to 60 ° C. Combine the ingredients of premix E until they are uniform, and then add them to the batch of premixes A-D, while continuing to mix. Cool the mixture to 50 ° C. Then add the premixes F and G to the mixture of batches of A-E, and continue cooling to approximately 35 ° C. The mixing is continued until the resulting batch mixture is uniform. Once the batch mixture is uniform, the resulting composition is introduced into a suitable dispenser as described herein.

EXAMPLES 7 TO 8 Oil-in-water emulsion compositions are prepared from the following ingredients using conventional formulation techniques 1 A predispersion of ammonium polyacrylate treated with Ti02, water and glycerin. 2 A mixture of polyacrylamide, isoparaffin and laureth-7.

Prepare examples 7 and 8 as described in examples 3 to 6.

Claims (18)

NOVELTY OF THE INVENTION CLAIMS

1. - A skin care device comprising a skin care composition contained within a dispenser, characterized in that said skin care composition comprises an emulsion, preferably an oil in water emulsion, which comprises: 1) at least one hydrophobic phase comprising an oil, and from 0.1% to 20%, preferably from 0.15% to 20%, more preferably from 0.20% to 5%, by weight of the composition, of an emollient light; 2) at least one hydrophilic phase comprising water; and 3) from 0.1% to 5%, by weight of the composition, of an emulsifier having an HLB of at least 6; wherein the composition has a viscosity of about 15,000 cps at 200,000 cps, more preferably 20,000 cps at 100,000 cps, most preferably 25,000 cps at 60,000 cps, and a pH of 3 to 9; and further characterized in that the dispenser of the skin care composition comprises a container for storing a supply of the skin care composition to be dispensed, said container including a lower portion having a sliding companion piston and upper portion. having a pump for dispensing the composition for skin care, said pump comprising: 1) a first non-return valve (16) provided in an upper separation wall of the container for controlling the communication between the interior of the container and a pumping chamber through a first opening (12) formed in said separation wall (11); 2) a guide sleeve arrangement (6) surrounding said first opening (12) and having first non-return valve (16) pivotally connected thereto, said guide sleeve arrangement extending upwardly from said partition wall for circumferentially defining said pumping chamber (24), said guiding sleeve arrangement (6) having inner and outer circumferential guiding sleeves, said first non-return valve being pivotally connected to said inner guiding sleeve; 3) a cup-shaped actuator cover (7) having a peripheral outer wall portion projecting downward and an inner tubular section (19), the latter forming a discharge channel having an opening exit passage laterally outwardly, wherein: (a) said outer wall portion of the actuator cap (7) is slidably coupled with the outer circumferential guiding sleeve of the guiding sleeve arrangement (6), both of which are provided with cooperating locking projections (26). , 27) to limit the axial upward movement of the actuator cover (7), (b) said outer guide sleeve being integral with said upper separation wall of said container, and providing an edge portion (25) projecting radially toward is separated from the locking projection (26) of the guide sleeve arrangement (6) to establish a circumferential guiding surface that engages an inner guide surface of the portion of the guide portion (6). external network of the actuating cover, (c) said tubular section of the actuator cap having a downwardly extending portion having a diameter greater than that of said outlet passage that opens laterally, and holding a supply piston (22) to maintain the piston (22). ) slidably coupled with said inner circumferential guiding sleeve of said guiding sleeve arrangement (6), thereby defining a space forming the pumping chamber (24), (d) said supply piston (22) having a second opening (29) in register with the tubular section of the actuating cover 7, (e) said second opening (29) being controlled by a second non-return valve (3) for controlling the communication between the pumping chamber upstream thereof and the discharge channel of the actuating cover downstream thereof; and 4) a return spring (32) extending between a stationary portion of the inner guide sleeve and the actuator cap (7) to deflect said actuator cap (7) in a rest position.

2. The skin care equipment according to claim 1, further characterized in that the light emollient is selected from the group consisting of isohexadecane, isododecane, isoecosane, Cg_i6 soparaffin, light mineral oil, isopropyl isostearate, methyl isostearate, ethyl stearate, isononyl isononopoate, octyl palmitate, isopropyl myristate, isopropyl palmitate, diisopropyl sebacate, hexyl laurate, C12-15 alcohol benzoate, dioctyl maleate, diisopropyl adipate, C? 2-? g alcohol salicylate, hydrogenated pollisobutene, octyl salicylate, cyclomethicone, dimethicone, dimemeticonol, and mixtures thereof.

3. The skin care equipment according to claim 1 or 2, further characterized in that the emulsifier is selected from the group consisting of sorbitan monostearate, sucrose cocoate, steareth-10, steareth-20, steareth- 21, steareth-100, oleth-10, oleth-20, laureth-23, cetearyl glucoside, ceteth-10, ceteth-20, stearate of PEG-100, and mixtures thereof.

4. The skin care equipment according to any of claims 1 to 3, further characterized in that the composition further comprises a thickening agent.

5. The skin care equipment according to claim 4, further characterized in that the thickening agent is a polymeric thickening agent and the composition comprises from 0.1% to 5%, more preferably from 0.2% to 3%, in weight of the composition, of the polymeric thickening agent.

6. The skin care equipment according to claim 5, further characterized in that the polymeric thickening agent is selected from the group consisting of carboxylic acid polymers, cross-linked polyacrylate polymers, polyacrylamide polymers, cross-linked acrylate polymers of C?-C3o alkyl acrylates, entailed alkylvinyl ethers, and maleic anhydride copolymers, interlaced poly (N-vinylpyrrolidones), polysaccharides, and mixtures thereof.

7. - The skin care equipment according to any of claims 1 to 6, further characterized in that the hydrophobic phase further comprises 0.1% to 10%, by weight of the composition, of an organopolysiloxane oil.

8. The skin care equipment according to claim 7, further characterized in that the organopolysiloxane oil is selected from the group consisting of cyclomethicone, dimethicone, dimethiconol, and mixtures thereof.

9. The skin care equipment according to any of claims 1 to 8, further characterized in that the composition further comprises 0.1% to 2%, by weight of the composition, of a particulate reflective material.

10. The skin care equipment according to claim 9, further characterized in that the particulate reflective material has charge and has a primary and pure average particle size of 100 nm to 300 nm.

11. The skin care equipment according to claim 9 or 10, further characterized in that the reflective material in charged particles comprises a metal oxide, said metal oxide being coated with a coating material that confers a net charge. which is greater than the zeta potential of said uncoated metal oxide.

12. The skin care equipment according to any of claims 9 to 11, further characterized in that the The particulate reflective material is selected from the group consisting of Ti, ZnO, ZrO, and mixtures thereof, more preferably the metal oxide consists essentially of Ti02.

13. The skin care equipment according to any of claims 1 to 12, further characterized in that the composition further comprises 0.1% to 20%, by weight of the composition, of an active agent for the care of the skin.

14. The skin care equipment according to claim 13, further characterized in that the active agent for skin care is selected from the group consisting of vitamin B3 compounds, which are preferably niacinamide, retinoids, antioxidants, radical scavengers, and mixtures thereof.

15. The skin care equipment according to any of claims 1 to 14, further characterized in that the composition further comprises an additional skin conditioning component selected from the group consisting of medium emollients, heavy emollients, humectants, and mixtures thereof.

16. The skin care equipment according to any of claims 1 to 15, further characterized in that the dispenser is characterized in that said guide sleeve arrangement consists of an integrally formed guide sleeve (38) having a wall. (39, 40) U-shaped cross section.

17. - The skin care equipment comprising a skin care composition contained within a dispenser, characterized in that said skin care composition comprises an emulsion comprising: 1) at least one hydrophobic phase that it comprises an oil, and from 0.1% to 20%, by weight of the composition, of a light emollient; 2) at least one hydrophilic phase comprising water; and 3) from 0.1% to 5%, by weight of the composition, of an emulsifier having an HLB of at least 6; 4) from 0.1% to 2%, by weight of the composition, of a reflective particulate material; 5) from 0.1% to 20%, by weight of the composition, of a vitamin B3 compound; and wherein the composition has a viscosity of 15,000 cps at 200,000 cps and a pH of 3 to 9; and further characterized in that said dispenser comprises a manually operated pump fixedly connected to an ergonomic container having an actuator cap, wherein the dispenser is configured so that the pump is in register with the container, and the container is configured to provide comfortable and easy grip by a human hand, wherein the hand easily conforms to the shape of the container, and the actuating cap can be depressed substantially only by movement of the tip of the index or thumb fingers.

18. The skin care equipment comprising a skin care composition contained within a dispenser, characterized in that said skin care composition comprises: a) an oil-in-water emulsion comprising: 1) at least one phase hydrophobic comprising an oil and from 0.15% to 10%, by weight of the composition, of a light emollient selected from the group consisting of isohexadecane, isopropyl isostearate, methyl isostearate, ethyl isostearate, inononyl isonononoate, dimethicone, and mixtures thereof; 2) at least one hydrophilic phase comprising water; and 3) from 0.1% to 5%, by weight of the composition, of an emulsifier selected from the group consisting of sorbitan monostearate, sucrose cocoate, steareth-10, steareth-20, steareth-21, steareth-100, oleth -10, oleth-20, laureth-23, cetearyl glucoside, ceteth-10, ceteth-20, stearate of PEG-100, and mixtures thereof; b) from 0.1% to 5%, by weight of the composition, of a polymeric thickening agent; c) from 0.1% to 2%, by weight of the composition, of a reflective particulate material selected from the group consisting of Ti02, ZnO, ZrO ?, and mixtures thereof; d) from 0.1% to 20%, by weight of the composition, of niacinamide; wherein the composition has a viscosity of 25,000 cps at 60,000 cps and a pH of 5 to 7; and further characterized in that said dispenser comprises a manually operated pump fixedly connected to an ergonomic container having an actuator cap, wherein the dispenser is configured so that the pump is in register with the container, and the container is configured to provide comfortable and easy grip by a human hand, wherein the hand easily conforms to the shape of the container, and the actuating cap can be depressed substantially only by movement of the tip of the index or thumb fingers.