CN111714387A

CN111714387A - Sunscreen composition suitable for lips, preparation method and application thereof, and cosmetic

Info

Publication number: CN111714387A
Application number: CN202010710459.6A
Authority: CN
Inventors: 孔照明; 丁伯新; 戴成兰
Original assignee: Guangzhou Meixi Biotechnology Co ltd
Current assignee: Guangzhou Meixi Biotechnology Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2020-09-29

Abstract

The invention provides a sunscreen composition suitable for lips, and a preparation method, application and cosmetics thereof, wherein the sunscreen composition comprises the following raw materials in percentage by mass based on 100% of the total mass of the sunscreen composition: 10-35% of a sun-screening agent, 2-5% of an emulsifier, 45-83% of grease and 5-15% of an additive. The sunscreen composition obtained by the invention has certain sunscreen capacity, is safe and non-irritant, has good skin moistening property and lip wrinkle fading effect, can effectively improve and improve the elasticity and color of skin, can avoid or reduce the injury of ultraviolet rays to human lips in daily life, such as red spots, edema, pigmentation and the like of the lips, has good treatment effect on the occurred inflammation of the lips, and can obviously shorten the healing time.

Description

Sunscreen composition suitable for lips, preparation method and application thereof, and cosmetic

Technical Field

The invention relates to the technical field of cosmetics, in particular to a sunscreen composition suitable for lips, a preparation method and application thereof, and cosmetics.

Background

In recent years, with the improvement of living standard of people, skin care products become indispensable in daily life of more and more consumers, wherein sunscreen products account for a great proportion. Sunscreen products for body and face are available in a wide variety of forms, however, there are few sunscreen products applied to the lips and the efficacy is very single.

Disclosure of Invention

The invention aims to provide a sunscreen composition suitable for lips, a preparation method, application and cosmetics thereof, the sunscreen composition has certain sunscreen capacity, is safe and non-irritant, has good skin moistening performance and lip wrinkle fading effect, can effectively improve and improve the elasticity and color of skin, can avoid or relieve the problems of injury of ultraviolet rays to lips of a human body in daily life, such as red spots, edema, pigmentation and the like of the lips, has a good treatment effect on the occurred lip inflammation, and can obviously shorten the healing time.

In order to achieve the above purpose, the invention provides the following technical scheme:

a sunscreen composition suitable for lips comprises the following raw materials in percentage by mass, based on 100% of the total mass of the sunscreen composition: 10-35% of a sun-screening agent, 2-5% of an emulsifier, 45-83% of grease and 5-15% of an additive;

the additive comprises a solvent, a pH regulator, an anti-allergy agent and an anti-inflammation bacteriostatic agent, wherein the mass ratio of the solvent to the pH regulator to the anti-allergy agent to the anti-inflammation bacteriostatic agent is (1-10): (0.1-1): (0.1-2): (0.1-2).

As a further improvement of the above technical solution, the additive further comprises an antioxidant;

preferably, the mass ratio of the antioxidant to the solvent is (0.5-5): (1-10).

As a further improvement of the above technical solution, the sunscreen agent comprises the following components: rutin, titanium dioxide, zinc oxide, radix Scutellariae extract, diethyl amino hydroxy benzoyl benzoic acid hexyl ester, bis-ethyl hexyloxy phenol methoxyphenyl triazine and polysiloxane-15;

preferably, the mass ratio of the rutin, the titanium dioxide, the zinc oxide, the radix scutellariae extract, the diethyl-amino-hydroxybenzoyl hexyl benzoate, the bis-ethylhexyloxyphenol methoxyphenyl triazine and the polysiloxane-15 is (0.1-2): (1-25): (1-25): (0.1-10): (0.1-10): (1-10): (0.1-5).

As a further improvement of the above technical solution, the emulsifier comprises at least one of polyglyceryl-3 diisostearate and polysorbate-80;

preferably, the emulsifier is polyglycerol-3 diisostearate and polysorbate-80 according to the mass ratio of (0.5-2): (0.5-2).

As a further improvement of the above technical solution, the oil comprises at least one of meadowfoam seed oil, caprylic/capric triglyceride and isononyl isononanoate;

preferably, the grease is white chinlon oil, caprylic/capric triglyceride and isononyl isononanoate in a mass ratio of (5-10): (5-10): (5-10) the composition.

As a further improvement of the above technical solution, the solvent includes at least one of water and ethanol;

preferably, the solvent comprises ethanol and water, and the mass ratio of the ethanol to the water is (1-5): (1-5);

preferably, the pH adjusting agent comprises at least one of arginine, triethanolamine, and sodium hydroxide;

preferably, the anti-sensitivity agent comprises at least one of dipotassium glycyrrhizinate and hydroxyphenylpropionamide benzoic acid;

preferably, the anti-inflammatory bacteriostatic agent comprises at least one of bisabolol and allantoin.

As a further improvement of the above technical solution, the antioxidant comprises at least one of tocopheryl acetate and panthenol.

A method for preparing the sunscreen composition suitable for lips comprises the following steps: mixing the above materials.

The application of the sunscreen composition suitable for lips in the preparation of sunscreen cosmetics.

A sunscreen cosmetic comprising the above sunscreen composition for lips;

preferably, the sunscreen cosmetic comprises a sunscreen cream, a sunscreen milk, a sunscreen spray, a sunscreen lip glaze or a sunscreen lipstick.

The invention has the beneficial effects that:

(1) the invention reasonably compounds the grease, the emulsifier, the sunscreen agent and the additive, and synergizes synergistically, so that the obtained sunscreen composition has certain sunscreen capacity, is safe and non-irritant, has good skin moistening performance and lip wrinkle fading effect, can effectively improve and promote the elasticity and color of skin, can avoid or reduce the injury of ultraviolet rays to human lips in daily life, such as red spots, edema, pigmentation and the like of the lips, has a good treatment effect on the occurred inflammation of the lips, and can obviously shorten the healing time.

(2) The preparation method of the sunscreen composition is simple, low in preparation cost, wide in market prospect and suitable for large-scale production.

In order to make the aforementioned and other objects, features and advantages of the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention.

This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

The terms as used herein:

"prepared from … …" is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

The conjunction "consisting of … …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of … …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when the range "1 ~ 5" is disclosed, the ranges described should be construed to include the ranges "1 ~ 4", "1 ~ 3", "1 ~ 2 and 4 ~ 5", "1 ~ 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

In these examples, the parts and percentages are by mass unless otherwise indicated.

"part by mass" means a basic unit of measure indicating a mass ratio of a plurality of components, and 1 part may represent any unit mass, for example, 1g or 2.689 g. If we say that the part by mass of the component A is a part by mass and the part by mass of the component B is B part by mass, the ratio of the part by mass of the component A to the part by mass of the component B is a: b. alternatively, the mass of the A component is aK and the mass of the B component is bK (K is an arbitrary number, and represents a multiple factor). It is unmistakable that, unlike the parts by mass, the sum of the parts by mass of all the components is not limited to 100 parts.

"and/or" is used to indicate that one or both of the illustrated conditions may occur, e.g., a and/or B includes (a and B) and (a or B).

The invention provides a sunscreen composition suitable for lips, which comprises the following raw materials in percentage by mass based on 100% of the total mass of the sunscreen composition: 10-35% of a sun-screening agent, 2-5% of an emulsifier, 45-83% of grease and 5-15% of an additive;

Further, the additive also comprises an antioxidant; preferably, the mass ratio of the antioxidant to the solvent is (0.5-5): (1-10).

Further, the sunscreen agent comprises the following components: rutin, titanium dioxide, zinc oxide, radix scutellariae extract, diethyl amino hydroxyl benzoyl benzoic acid hexyl ester, bis-ethyl hexyloxy phenol methoxyphenyl triazine and polysiloxane-15.

Further, the emulsifier includes at least one of polyglyceryl-3 diisostearate and polysorbate-80.

Preferably, the oil or fat comprises at least one of meadowfoam seed oil, caprylic/capric triglyceride and isononyl isononanoate.

The rutin is rutinoside of a flavonol compound quercetin, is a flavonoid compound extracted from plants, has vitamin P-like effect and anti-inflammatory effect, can reduce inflammation caused by ultraviolet irradiation on skin for a long time, has strong antioxidation, can inhibit the formation of lipid peroxides, can strongly absorb ultraviolet rays at 280-335 nm, and can be used as an edible antioxidant, a nutrition enhancer and the like; the titanium dioxide and the zinc oxide are physical sunscreen components, resist UVA and VUB in a reflection and scattering mode, cover all wave bands, are stable in property, non-toxic, harmless and nonirritating, and have the effects of antibiosis, ageing resistance and the like; the diethyl hydroxyl benzoyl hexyl benzoate is an ultraviolet UVA sun-screening agent, the sun-screening wave band is 320-400nm, and the light stability is good; the bis-ethylhexyloxyphenol methoxyphenyl triazine is a novel spectrum sunscreen agent, the sunscreen wave band is between 290 nm and 370nm, the molecular weight is not easy to be absorbed by skin, and the bis-ethylhexyloxyphenol methoxyphenyl triazine can be used as a stabilizer of other chemical sunscreen agents; polysiloxane-15 is a first polymer UVB filter agent formed by adsorbing chromophoric groups on a silicon chain framework, the sun-proof waveband is 290-340nm, and the polysiloxane-15 is an effective light stabilizer, and due to the unique polymerization type structure, the polysiloxane-15 can generate a synergistic effect when combined with the sun-proof components, so that the SPF value is effectively improved.

It is further noted that the meadowfoam seed oil contains more than 98% of long-chain fatty acid with antioxidation, which is one of the most stable vegetable oils in the world, and can increase the shelf life of the product and the stability of other oils; the sunscreen composition is cooperatively compatible with caprylic/capric triglyceride and isononyl isononanoate, has good compatibility with the chemical sunscreen agent, enhances the system stability of the obtained sunscreen composition, can better disperse the sunscreen agent, and has good spreadability.

The polyglycerol-3 diisostearate has the functions of emulsifying, dispersing, stabilizing, conditioning and controlling viscosity, and has the characteristics of no stimulation to skin, good water solubility and the like; the synergistic compatibility of the polyglycerol-3 diisostearate and the polysorbate-80 can ensure good compatibility with additives in the sunscreen composition and good edible safety, and can ensure the safety of lip cosmetics while maintaining the system stability of the sunscreen composition.

Further, the solvent includes at least one of water and ethanol;

preferably, the solvent comprises ethanol and water, and the mass ratio of the ethanol to the water is (1-5): (1-5).

Preferably, the pH adjusting agent includes at least one of arginine, triethanolamine, and sodium hydroxide.

Preferably, the anti-sensitivity agent comprises at least one of dipotassium glycyrrhizinate and hydroxyphenylpropionamide benzoic acid.

Preferably, the antioxidant comprises at least one of tocopheryl acetate and panthenol.

The tocopherol acetate is a skin conditioner and an antioxidant, and has a protective effect of preventing skin damage caused by sunlight and ultraviolet rays when being used for a cosmetic component. The bisabolol is extracted from chrysanthemum plants, has the functions of resisting inflammation and inhibiting bacteria, has good stability and good compatibility with skin, reduces skin inflammation, relieves skin acne, prevents acne, effectively improves the anti-irritation capability of the skin, repairs the skin with inflammation injury, and improves the SPF value in a sunscreen product. The dipotassium glycyrrhizinate is effective component of Glycyrrhrizae radix, has antiallergic and moisturizing effects, and has antiinflammatory and tranquilizing effects on inflammation caused by sunshine.

Each of the above raw materials is derived from a commercially available product. Through a large amount of researches, the inventor of the application finds that the grease, the emulsifier, the sun-screening agent and the additive are reasonably compounded and have synergistic interaction, the obtained sun-screening composition has certain sun-screening capacity, is safe and non-irritant, has good skin moistening performance and lip wrinkle fading effect, can effectively improve and improve the elasticity and color of the skin, can avoid or reduce the damage of ultraviolet rays to lips of a human body in daily life, such as red spots, edema, pigmentation and other problems of the lips, has a good treatment effect on the occurred lip inflammation, and can obviously shorten the healing time.

In addition, the oil, the emulsifier, the sun-screening agent and the additive are prepared according to the mass percentage ratio, so that the oil, the emulsifier, the sun-screening agent and the additive can play a good synergistic effect, and no side effect is generated.

A sunscreen cosmetic comprising the above sunscreen composition for lips;

The water is preferably purified water such as deionized water, pure water, or distilled water.

Embodiments of the present invention will be described in detail below with reference to specific examples, but those skilled in the art will appreciate that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

Example 1

(1) Weighing 20 parts of meadowfoam seed oil, 10 parts of caprylic/capric triglyceride, 29.7 parts of isononyl isononanoate, 2 parts of polyglycerol-3 diisostearate, 801 parts of polysorbate, 2 parts of rutin, 3 parts of titanium dioxide, 5 parts of zinc oxide, 5 parts of radix scutellariae extract, 3 parts of diethyl hydroxyl benzoyl benzoic acid hexyl ester, 7 parts of bis-ethylhexyloxyphenol methoxyphenyl triazine, 152 parts of polysiloxane, 0.3 part of arginine, 1 part of dipotassium glycyrrhizinate, 0.5 part of bisabolol, 0.5 part of tocopherol acetate, 4 parts of ethanol and 6 parts of pure water.

(2) Mixing pure water, denatured ethanol, rutin, dipotassium glycyrrhizinate, Scutellariae radix extract and arginine, stirring to completely dissolve them uniformly to obtain water phase for use;

(3) mixing bisabolol, tocopherol acetate, caprylic/capric triglyceride, isononyl isononanoate, meadowfoam seed oil, polyglycerol-3 diisostearate, polysorbate-80, bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylamino hydroxybenzoyl hexyl benzoate, polysiloxane-15, titanium dioxide and zinc oxide, heating to 80 ℃, and dissolving uniformly to obtain an oil phase for later use;

(4) mixing the above water phase and oil phase, and homogenizing to obtain sunscreen composition.

Example 2

(1) Weighing 10.5 parts of meadowfoam seed oil, 16.5 parts of caprylic/capric triglyceride, 20 parts of isononyl isononanoate, 2 parts of polyglycerol-3 diisostearate, polysorbate-803, 2 parts of rutin, 5 parts of titanium dioxide, 5 parts of zinc oxide, 10 parts of radix scutellariae extract, 3 parts of diethyl hydroxyl benzoyl benzoic acid hexyl ester, 7 parts of bis-ethylhexyloxyphenol methoxyphenyl triazine, 153 parts of polysiloxane, 1 part of arginine, 1 part of dipotassium glycyrrhizinate, 0.5 part of bisabolol, 0.5 part of tocopherol acetate, 3 parts of ethanol and 7 parts of pure water.

Example 3

(1) Weighing 15 parts of meadowfoam seed oil, 30 parts of caprylic/capric triglyceride, 30 parts of isononyl isononanoate, 1 part of polyglycerol-3 diisostearate, 801 parts of polysorbate, 2 parts of rutin, 3 parts of titanium dioxide, 5 parts of zinc oxide, 3 parts of radix scutellariae extract, 5 parts of diethyl hydroxyl benzoyl benzoic acid hexyl ester, 5 parts of bis-ethyl hexyloxyphenol methoxyphenyl triazine, 152 parts of polysiloxane, 0.5 part of arginine, 0.5 part of dipotassium glycyrrhizinate, 0.5 part of bisabolol, 0.5 part of tocopherol acetate, 2 parts of ethanol and 3 parts of pure water.

Example 4

(1) Weighing 30 parts of meadowfoam seed oil, 10 parts of caprylic/capric triglyceride, 19.5 parts of isononyl isononanoate, 2 parts of polyglycerol-3 diisostearate, 2 parts of polysorbate-802 parts, 1.5 parts of rutin, 5 parts of titanium dioxide, 5 parts of zinc oxide, 5 parts of radix scutellariae extract, 5 parts of diethyl oxybenzoyl hexyl benzoate, 7 parts of bis-ethylhexyloxyphenol methoxyphenyl triazine, 153 parts of polysiloxane, 2 parts of arginine, 1 part of dipotassium glycyrrhizinate, 1 part of bisabolol, 1 part of tocopherol acetate, 3 parts of ethanol and 7 parts of pure water.

Comparative example 1

This comparative example differs from example 1 in that: the procedure of example 1 was repeated except that the raw material component polysiloxane-15 was removed.

Comparative example 2

This comparative example differs from example 1 in that: the procedure of example 1 was repeated except that rutin, which is a raw material component, was removed.

Comparative example 3

This comparative example differs from example 1 in that: the procedure of example 1 was repeated except that the zinc oxide as a raw material component was removed.

Comparative example 4

This comparative example differs from example 4 in that: the procedure of example 1 was repeated except that bisabolol as a raw material component was removed.

1. Test for Sun protection Properties

It should be noted that the theoretical SPF value is calculated by using a calculation formula of sunscreen data from BASF corporation.

Actually measuring the SPF value, collecting 80 volunteers according to the SPF measuring method in the technical Specification for cosmetic safety, randomly dividing into 8 groups of 10 persons, and irradiating the volunteers for 30min by using a xenon lamp sunlight simulator with standard ultraviolet spectrum by using the sunscreen compositions prepared in the examples 1-4 and the comparative examples 1-4 to obtain the SPF value.

The results of the theoretical values of SPF calculation and the instrumental values of SPF of the sunscreen cosmetics prepared in examples 1 to 4 and comparative examples 1 to 4 are shown in table 1 below.

TABLE 1

The results in the table 1 show that the actual SPF value of the sunscreen composition obtained in the embodiment of the invention is obviously higher than the theoretical SPF value, and the sunscreen capability of synergistic interaction is achieved; and has better sun-screening effect than the sun-screening composition obtained by the comparative proportion.

2. Repair performance testing

40 subjects 18-35 years old are selected, and male and female are not limited, and all have mild cheilitis but other health conditions are good. The subjects were not treated with corticosteroids or other drugs that affect immune function for the first 3 months, and were not treated after cheilitis. The subjects clarified the purpose and requirements of the test, and randomly divided into 8 groups (5 persons per group) to use the sunscreen compositions obtained in examples 1 to 4 and comparative examples 1 to 4. The using method comprises the following steps: 2mg/cm according to the standard amount of sun protection test²The sunscreen composition was applied evenly to the surface of the lips 4 times a day (after three meals and before bedtime). The skin condition of lips of the testee was recorded before and after the test, and the skin condition was recorded for 5 points, 4 points for dryness, 3 points for mild peeling, 2 points for moderate peeling, 1 point for mild rhagadia inflammation, 0 point for cheilitis, the recovery rate was (score after test-score before test)/score after test), and the recovery condition of cheilitis was observed after 10 days, and the average after-sun recovery rate of each group was calculated as shown in table 2 below.

TABLE 2

Item	Average repair rate
		Example 1	85％
Example 2	80％
		Example 3	87％
Example 4	89％
		Comparative example 1	61％
Comparative example 2	59％
		Comparative example 3	54％
Comparative example 4	63％

The results of table 2 above show that: the sunscreen composition obtained by the embodiment of the invention has obvious anti-inflammation and repair effects on the occurred inflammation of lips.

3. Safety test

80 subjects of 18-35 years old are selected, the subjects with close skin are averagely divided into 8 groups, 10 subjects in each group are respectively tried out correspondingly from the sunscreen compositions obtained in the embodiments 1-4 and the comparative examples 1-4, and the sunscreen compositions are smeared on the back to carry out the spot test and adopt the spot test. The sunscreen cosmetic samples obtained in the above examples 1 to 4 and comparative examples 1 to 4 were distributed in the spot laboratory in order, and a blank control was prepared and marked. Cleaning the back of each subject serving as a test part, attaching the corresponding group of the sunscreen cosmetics to the test part, observing after 24 hours, observing whether erythema or abnormality occurs, and recording and counting.

The results were evaluated in reference to Table 3.

TABLE 3

The test results are shown in Table 4 below

TABLE 4

The results from table 4 above show that:

in all the examples of the present invention, the skin of the subject showed negative reaction (rating: 0), and the sunscreen cosmetics prepared in all the examples of the present invention showed no adverse skin reaction on human body. The sunscreen cosmetics prepared by the comparative examples all showed grade 1 or above reaction of the subjects.

4. Other use effect evaluation tests.

Selecting 40 subjects aged 18-50 years, randomly dividing the subjects into 8 groups, respectively using the sunscreen compositions obtained in the examples 1-4 and the comparative examples 1-4 of the invention for 5 persons in each group, wherein the subjects are 2mg/cm per time²The application amount is uniformly applied to the lips in the morning and at night every day, and the skin condition of the lips is evaluated after 4 weeks; the evaluation content comprises the following steps: 1) subjective questionnaires, the contents of which include skin moisture, skin elasticity, and skinSkin tone, lip lines; the scoring intervals are as follows: 10-10 points, obviously worsen in 10 points, has no change in 0 points and obviously improves in 10 points, and calculates average points; 2) and measuring by an instrument: measuring the water content of the skin by using a wesipull WAX-PF012 measuring instrument, and averaging the water contents of all groups; table 5 below is the evaluation results of the subjective questionnaire, and table 6 below is the results of the instrumental tests.

TABLE 5

	Degree of skin moistening	Elasticity of skin	Skin tone	Lip line
					Example 1	8	7.5	8	7
Example 2	7	7	8	7
					Example 3	8	8	9	8
Example 4	8	8	9	8
					Comparative example 1	1	2	0	0
Comparative example 2	1	0	2	0
					Comparative example 3	2	0	2	0
Comparative example 4	0	0	1	-5

TABLE 6

The data in tables 5 and 6 show that: after the sunscreen composition prepared according to examples 1 to 4 is applied for a long time (4 weeks), compared with the sunscreen composition prepared according to comparative examples 1 to 4, the lip skin condition can be obviously improved, the skin moisturizing effect is good, the lip wrinkle fading effect and the moisturizing effect are good, and the elasticity and the color of the skin can be effectively improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims

1. The sunscreen composition suitable for lips is characterized by comprising the following raw materials in percentage by mass based on 100% of the total mass of the sunscreen composition: 10-35% of a sun-screening agent, 2-5% of an emulsifier, 45-83% of grease and 5-15% of an additive;

2. The lip-applicable sunscreen composition according to claim 1 wherein said additive further comprises an antioxidant;

3. The lip-applied sunscreen composition according to claim 1 wherein said sunscreen comprises the following components: rutin, titanium dioxide, zinc oxide, radix Scutellariae extract, diethyl amino hydroxy benzoyl benzoic acid hexyl ester, bis-ethyl hexyloxy phenol methoxyphenyl triazine and polysiloxane-15;

4. The lip-applied sunscreen composition according to claim 1, wherein said emulsifier comprises at least one of polyglyceryl-3 diisostearate and polysorbate-80;

5. A sunscreen composition as in claim 1 adapted for use on the lips wherein said oil comprises at least one of meadowfoam seed oil, caprylic/capric triglyceride, and isononyl isononanoate;

6. The lip-applicable sunscreen composition according to claim 1 wherein said solvent comprises at least one of water and ethanol;

7. The lip-applicable sunscreen composition according to claim 2 wherein said antioxidant comprises at least one of tocopheryl acetate and panthenol.

8. A method of preparing a sunscreen composition as claimed in any one of claims 1 to 7 for use on the lips comprising: mixing the above materials.

9. Use of a sunscreen composition according to any one of claims 1 to 7 for the lips for the preparation of a sunscreen cosmetic.

10. A sunscreen cosmetic comprising the sunscreen composition for lips according to any one of claims 1 to 7;