CN107213063B

CN107213063B - Fair and bright facial mask and preparation method thereof

Info

Publication number: CN107213063B
Application number: CN201710424386.2A
Authority: CN
Inventors: 李红军; 何志青
Original assignee: Guangzhou Kema Biotechnology Co ltd
Current assignee: Guangzhou Kema Biotechnology Co ltd
Priority date: 2017-06-07
Filing date: 2017-06-07
Publication date: 2020-09-18
Anticipated expiration: 2037-06-07
Also published as: CN107213063A

Abstract

The invention belongs to the technical field of cosmetics, and particularly relates to a fair and bright white mask and a preparation method thereof. The fair and bright white mask provided by the invention comprises propylene glycol, hydroxyethyl urea, betaine, 3-O-ethyl ascorbic acid, arbutin, purslane extract, thyme extract, peony whitening essence, panthenol, nicotinamide, jojoba wax PEG-120 esters, tranexamic acid, carbomer, triethanolamine, sodium hyaluronate, PEG-40 hydrogenated castor oil, methylparaben, phenoxyethanol/ethylhexyl glycerol, p-hydroxyacetophenone, essence and water. The fair, transparent and bright white mask provided by the invention is natural and safe, contains various active ingredients, has good permeability, can penetrate into the skin bottom to supplement a large amount of moisture and nutrients, moisturize and moisten, nourish and repair, whiten the skin, remove color spots, improve the dark yellow state of the skin and restore fair and transparent.

Description

Fair and bright facial mask and preparation method thereof

Technical Field

The invention belongs to the technical field of cosmetics, and particularly relates to a fair and bright white mask and a preparation method thereof.

Background

In recent years, as the standard of living and aesthetic quality of people is improved, more and more people seek and desire white and moist skin. Therefore, research and development of whitening cosmetics and skin whitening preparations having the effect of preventing color spots and pigmentation caused by solar rays and other causes are receiving increasing attention from cosmetic manufacturers and researchers in various countries, and the whitening cosmetics have become one of the main types of skin care cosmetics.

The whitening product has the main function of whitening the skin by inhibiting the activity of tyrosinase or blocking the oxidation pathway of the tyrosine to generate melanin so as to reduce the generation of the melanin. The skin whitening product is a substance which acts on the production and metabolism processes of skin melanin, inhibits the production of the melanin and meets the specification. However, conventional skin whitening agents often employ chemical substances such as mercuric salts having a whitening effect and hydroquinone having a spot-removing effect. Although the compounds have the effect of quickly whitening skin, the compounds have toxic and side effects on skin, and can cause contact dermatitis or permanent decoloration after long-term use, and the compounds are forbidden in many countries. The currently required skin lightening agents should meet two criteria: firstly, the tyrosinase activity is inhibited at a high rate, and the generation of melanin can be obviously reduced; secondly, the safety is higher, and the skin of the human body is nontoxic and non-irritant. Arbutin, VitC derivatives and kojic acid are the whitening components which are commonly used in the whitening cosmetics at home and abroad at present. In order to develop cosmetics meeting the requirement of returning to nature, in particular whitening products which are safe and have no side effect, natural plant components with good whitening effect are more and more favored by consumers at present. The search for and development of natural plant skin whitening and freckle removing preparations which are efficient and have no side effects or small side effects on human bodies has become a more important subject in the field of cosmetics at present.

Chinese patent application CN103494760A discloses a moisturizing and whitening mask, which contains the following components by the total mass of the mask liquid: 75-80% of Bama mineral water, 3-7% of aloe juice, 1-3% of rose extract, 1-3% of egg white, 0.5-2% of hydrolyzed pearl, 1-2% of green cucumber extract and 2-5% of pomegranate extract.

Chinese patent application CN105832600A discloses a emblic leafflower fruit moisturizing and whitening mask paste, which comprises the following raw materials in parts by weight: 0.5 part of emblic leafflower fruit, 10 parts of aloe, 2 parts of propylene glycol, 2 parts of glycerol, 3 parts of hyaluronic acid, 10 parts of hydrosol, a proper amount of preservative, a proper amount of essence and 100 parts of deionized water.

Chinese patent application CN104958238A discloses a whitening mask, which comprises the following raw materials in parts by weight: 30-50 parts of hydrolyzed collagen, 20-30 parts of milk essence, 10-20 parts of olive oil, 30-50 parts of glycerol, 10-20 parts of vitamin C and 5-10 parts of green tea essence.

Whitening is also a care process from the inside out. Firstly, a set of whitening products suitable for the user needs to be selected, and because the whitening components are different, the user preferably uses products of the same brand and the same series theoretically, so that adverse reactions caused by the mutual conflict of different whitening components can be prevented. At present, the whitening and moisturizing facial masks in the market have the problems that the whitening and moisturizing effect is not satisfactory, the skin cannot be fundamentally improved and the like, so that a natural and safe whitening and moisturizing facial mask with good moisturizing, moisturizing and whitening effects needs to be developed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a white, transparent and bright facial mask which is natural and safe, contains various active ingredients, has good permeability, can penetrate into the skin bottom to supplement a large amount of moisture and nutrients, moisturize and moisten, nourish and repair, whiten the skin, remove color spots, improve the dark yellow state of the skin and restore the white and transparent state. The fair and bright white mask provided by the invention has good moisturizing, moisturizing and whitening effects.

In order to achieve the purpose, the technical scheme of the invention is as follows:

an fair and bright facial mask comprises the following components in percentage by weight:

4-6% of propylene glycol, 1-3% of hydroxyethyl urea, 0.5-1.5% of betaine, 0.5-1.5% of 3-O-ethyl ascorbic acid, 0.5-1.5% of arbutin, 0.4-0.6% of purslane extract, 0.4-0.6% of thyme extract, 0.4-0.6% of peony whitening essence, 0.4-0.6% of panthenol and 0.4-0.6% of nicotinamide, 0.4-0.6% of jojoba wax PEG-120 esters, 0.2-0.4% of tranexamic acid, 0.05-0.15% of carbomer, 0.07-0.11% of triethanolamine, 0.04-0.08% of sodium hyaluronate, 0.03-0.06% of PEG-40 hydrogenated castor oil, 0.04-0.06% of methylparaben, 0.1-0.3% of phenoxyethanol/ethylhexyl glycerol, 0.1-0.5% of p-hydroxyacetophenone, 0.004-0.006% of essence and 81.234-90.466% of water.

Further, the fair and bright white mask consists of the following components in percentage by weight:

propylene glycol 5%, hydroxyethyl urea 2%, betaine 1%, 3-O-ethyl ascorbic acid 1%, arbutin 1%, purslane extract 0.5%, thyme extract 0.5%, peony whitening essence 0.5%, panthenol 0.5%, niacinamide 0.5%, jojoba wax PEG-120 esters 0.5%, tranexamic acid 0.3%, carbomer 0.1%, triethanolamine 0.09%, sodium hyaluronate 0.06%, PEG-40 hydrogenated castor oil 0.05%, methylparaben 0.05%, phenoxyethanol/ethylhexyl glycerin 0.15%, p-hydroxyacetophenone 0.3%, essence 0.005% and water 85.895%.

In the technical scheme of the invention, the 3-O-ethyl ascorbic acid can inhibit the activity of tyrosinase, inhibit the formation of melanin, reduce the melanin to be colorless, efficiently whiten skin and also has an excellent antioxidant effect. The arbutin can rapidly permeate into skin, effectively inhibit the activity of tyrosinase in the skin, block the formation of melanin, and accelerate the decomposition and excretion of the melanin through the direct combination of the arbutin and the tyrosinase, thereby reducing the pigmentation of the skin and removing stains and freckles.

The herba Portulacae extract has antiinflammatory, antiallergic and acne removing effects. The thyme extract can prevent melanin from 'walking', and reduce the amount of kinesin for transporting melanin to epidermal cells to inhibit the transportation of melanin, thereby achieving whitening effect. The peony whitening essence can inhibit tyrosinase, thereby inhibiting melanin from transferring to keratinocytes, inhibiting melanin generation, homogenizing skin color, improving skin glossiness and reducing visible spots.

The fair and bright white mask contains various active ingredients such as 3-O-ethyl ascorbic acid, arbutin, thyme extract and the like, and is combined with basic raw materials such as propylene glycol, hydroxyethyl urea, betaine, panthenol, nicotinamide, Jojoba wax PEG-120 esters, tranexamic acid and the like, and all the components have synergistic action, so that the fair and bright white mask can permeate into the skin layer by layer, supplement a large amount of moisture and nutrients, lock water and keep moisture, better exert the effects of whitening ingredients, penetrate into the skin to inhibit tyrosinase activity, reduce generation of melanin in the skin, prevent the migration of melanin to the epidermis, dissolve stubborn melanin, discharge the melanin in the skin, enable the skin to return to be white and tender like as a baby, and glow and get glorious.

The invention also provides a preparation method of the fair, transparent and bright white mask, which comprises the following steps:

s1, mixing PEG-40 hydrogenated castor oil and essence, and stirring uniformly until the mixture is transparent to obtain a solution A;

s2, taking a half amount of water, adding carbomer into the water, uniformly stirring, and standing for 8-10h to obtain carbomer swelling solution;

s3, adding the rest water, propylene glycol, sodium hyaluronate, hydroxyethyl urea, betaine, jojoba wax PEG-120 esters and methyl hydroxybenzoate into the carbomer swelling solution obtained in the step S2, stirring and heating to 80-90 ℃, and keeping the temperature for 20-40min to obtain a material B;

s4, cooling the material B obtained in the step S3 to 38-42 ℃, adding triethanolamine, a purslane extract, a thyme extract, peony whitening essence, 3-O-ethyl ascorbic acid, arbutin, panthenol, nicotinamide, tranexamic acid, phenoxyethanol/ethylhexyl glycerol, p-hydroxyacetophenone and the solution A obtained in the step S1, stirring uniformly, cooling to normal temperature, sampling, inspecting, and discharging after the product is qualified to obtain the product.

Further, the step S2 is left for 9 h.

Further, the step S3 is stirred and heated to 85 ℃.

Further, the step S3 is carried out for 30 min.

Further, the step S4 is to cool the material B obtained in the step S3 to 40 ℃.

Further, the stirring speed of the stirring is 55-65 r/min.

Further, the stirring speed of the stirring is 60 r/min.

Compared with the prior art, the fair and bright white mask provided by the invention has the following advantages:

(1) the fair and transparent whitening mask provided by the invention contains various natural active ingredients such as 3-O-ethyl ascorbic acid, arbutin, purslane extract, thyme extract, peony whitening essence and the like, provides sufficient nourishment for skin, deep water replenishing, water locking and moistening, effectively improves dryness, roughness and tightness, can whiten and soften skin, is smooth and soft, improves the integral brightness of the skin, and improves the elasticity of the skin, thereby achieving natural whitening from inside to outside.

(2) The fair and bright white mask provided by the invention can condition skin from inside to outside, dispel color spots, improve the dark yellow state of skin and prevent pigment generation.

(3) The fair and bright white mask provided by the invention is safe and stable, has good permeability and easy absorption, and the skin is fresh and non-sticky after use.

(4) The fair, transparent and bright white mask provided by the invention is simple in preparation method, controllable in conditions, stable in process and capable of being popularized and applied.

Detailed Description

The present invention is further described in the following description of the specific embodiments, which is not intended to limit the invention, but various modifications and improvements can be made by those skilled in the art according to the basic idea of the invention, within the scope of the invention, as long as they do not depart from the basic idea of the invention.

The purslane extract can be purchased from Xianweizhen biotechnology limited company, and has the following product number: virgin 20161215; thyme extract is available from shan xi comethic plant development ltd, cat #: 4392; the peony whitening essence can be purchased from Guangzhoukang microbial technology limited company, the product number is: H16031502. PEG-40 hydrogenated castor oil is available from pethidish trade ltd, guangzhou, model/brand: Sympatens-TRH/400.

Example 1A fair and clear white mask

The fair and bright whitening mask consists of the following components in percentage by weight:

propylene glycol 4%, hydroxyethyl urea 1%, betaine 0.5%, 3-O-ethyl ascorbic acid 0.5%, arbutin 0.5%, purslane extract 0.4%, thyme extract 0.4%, peony whitening essence 0.4%, panthenol 0.4%, niacinamide 0.4%, jojoba wax PEG-120 esters 0.4%, tranexamic acid 0.2%, carbomer 0.05%, triethanolamine 0.07%, sodium hyaluronate 0.04%, PEG-40 hydrogenated castor oil 0.03%, methylparaben 0.04%, phenoxyethanol 0.1%, p-hydroxyacetophenone 0.1%, essence 0.004%, and water 90.466%.

The preparation method comprises the following steps:

s2, taking a half amount of water, adding carbomer into the water, uniformly stirring, and standing for 8 hours to obtain carbomer swelling solution;

s3, adding the rest water, propylene glycol, sodium hyaluronate, hydroxyethyl urea, betaine, jojoba wax PEG-120 esters and methyl hydroxybenzoate into the carbomer swelling solution obtained in the step S2, stirring and heating to 80 ℃, and keeping the temperature for 20min to obtain a material B;

s4, cooling the material B obtained in the step S3 to 38 ℃, adding triethanolamine, a purslane extract, a thyme extract, peony whitening essence, 3-O-ethyl ascorbic acid, arbutin, panthenol, nicotinamide, tranexamic acid, phenoxyethanol/ethylhexyl glycerol, p-hydroxyacetophenone and the solution A obtained in the step S1, stirring uniformly, cooling to normal temperature, sampling, inspecting, and discharging after the materials are qualified to obtain the whitening cream.

The stirring speed was 55 r/min.

Example 2A fair and bright white mask

propylene glycol 6%, hydroxyethyl urea 3%, betaine 1.5%, 3-O-ethyl ascorbic acid 1.5%, arbutin 1.5%, purslane extract 0.6%, thyme extract 0.6%, peony whitening essence 0.6%, panthenol 0.6%, niacinamide 0.6%, jojoba wax PEG-120 esters 0.6%, tranexamic acid 0.4%, carbomer 0.15%, triethanolamine 0.11%, sodium hyaluronate 0.08%, PEG-40 hydrogenated castor oil 0.06%, methylparaben 0.06%, ethylhexyl glycerin 0.3%, p-hydroxyacetophenone 0.5%, essence 0.006% and water 81.234%.

The preparation method comprises the following steps:

s2, taking a half amount of water, adding carbomer into the water, uniformly stirring, and standing for 10 hours to obtain carbomer swelling solution;

s3, adding the rest water, propylene glycol, sodium hyaluronate, hydroxyethyl urea, betaine, jojoba wax PEG-120 esters and methyl hydroxybenzoate into the carbomer swelling solution obtained in the step S2, stirring and heating to 90 ℃, and keeping the temperature for 40min to obtain a material B;

s4, cooling the material B obtained in the step S3 to 42 ℃, adding triethanolamine, purslane extract, thyme extract, peony whitening essence, 3-O-ethyl ascorbic acid, arbutin, panthenol, nicotinamide, tranexamic acid, phenoxyethanol/ethylhexyl glycerol, p-hydroxyacetophenone and the solution A obtained in the step S1, stirring uniformly, cooling to normal temperature, sampling, inspecting, and discharging after the product is qualified to obtain the product.

The stirring speed was 65 r/min.

Example 3A fair and bright white mask

propylene glycol 5%, hydroxyethyl urea 2%, betaine 1%, 3-O-ethyl ascorbic acid 1%, arbutin 1%, purslane extract 0.5%, thyme extract 0.5%, peony whitening essence 0.5%, panthenol 0.5%, niacinamide 0.5%, jojoba wax PEG-120 esters 0.5%, tranexamic acid 0.3%, carbomer 0.1%, triethanolamine 0.09%, sodium hyaluronate 0.06%, PEG-40 hydrogenated castor oil 0.05%, methylparaben 0.05%, ethylhexylglycerin 0.15%, p-hydroxyacetophenone 0.3%, essence 0.005% and water 85.895%.

The preparation method comprises the following steps:

s2, taking a half amount of water, adding carbomer into the water, uniformly stirring, and standing for 9 hours to obtain carbomer swelling solution;

s3, adding the rest water, propylene glycol, sodium hyaluronate, hydroxyethyl urea, betaine, jojoba wax PEG-120 esters and methyl hydroxybenzoate into the carbomer swelling solution obtained in the step S2, stirring and heating to 85 ℃, and keeping the temperature for 30min to obtain a material B;

s4, cooling the material B obtained in the step S3 to 40 ℃, adding triethanolamine, purslane extract, thyme extract, peony whitening essence, 3-O-ethyl ascorbic acid, arbutin, panthenol, nicotinamide, tranexamic acid, phenoxyethanol/ethylhexyl glycerol, p-hydroxyacetophenone and the solution A obtained in the step S1, stirring uniformly, cooling to normal temperature, sampling, inspecting, and discharging after the materials are qualified to obtain the product.

The stirring speed of the above stirring was 60 r/min.

Comparative example 1 an fair and shiny white mask

propylene glycol 5%, hydroxyethyl urea 2%, betaine 1%, 3-O-ethyl ascorbic acid 1%, arbutin 1%, purslane extract 0.5%, oldenlandia diffusa extract 0.5%, peony whitening essence 0.5%, panthenol 0.5%, nicotinamide 0.5%, jojoba wax PEG-120 esters 0.5%, tranexamic acid 0.3%, carbomer 0.1%, triethanolamine 0.09%, sodium hyaluronate 0.06%, PEG-40 hydrogenated castor oil 0.05%, methylparaben 0.05%, ethylhexylglycerin 0.15%, p-hydroxyacetophenone 0.3%, essence 0.005% and water 85.895%.

The preparation method is similar to example 3, and is different from example 3 in that the thyme extract is replaced by the oldenlandia diffusa extract.

Comparative example 2 an fair and shiny white mask

propylene glycol 5%, hydroxyethyl urea 2%, betaine 1%, 3-O-ethyl ascorbic acid 1%, arbutin 1%, purslane extract 0.5%, thyme extract 0.5%, rose whitening essence 0.5%, panthenol 0.5%, niacinamide 0.5%, jojoba wax PEG-120 esters 0.5%, tranexamic acid 0.3%, carbomer 0.1%, triethanolamine 0.09%, sodium hyaluronate 0.06%, PEG-40 hydrogenated castor oil 0.05%, methylparaben 0.05%, ethylhexylglycerin 0.15%, p-hydroxyacetophenone 0.3%, essence 0.005% and water 85.895%.

The preparation method is similar to that of example 3, and is different from example 3 in that the peony whitening essence is replaced by the rose whitening essence.

Test example I evaluation of safety of fair, clear and white mask

1. The test substance: fair and bright white masks prepared in example 1, example 2, example 3, comparative example 1 and comparative example 2.

2. A subject:

100 female volunteer subjects aged 22-55 years, with healthy skin and no history of skin allergy, were eligible for volunteer enrollment.

3. The test method comprises the following steps:

100 female volunteer subjects were randomly divided into 5 groups of 20 persons each using the fair and bright white masks prepared in example 1, example 2, example 3, comparative example 1 and comparative example 2, respectively, of example 1, example 2, example 3, comparative example 1 and comparative example 2.

Selecting a qualified spot tester, adding 0.020g of a test object into the spot tester in a closed spot patch experiment mode, externally attaching a special adhesive tape to the back of a test object, removing the test object after 24 hours, observing skin reactions after 0.5 hour, 6 hours, 12 hours, 24 hours and 48 hours of removal respectively, and recording the results according to the skin reaction grading standard in the cosmetic hygiene Specification.

4. And (3) test results:

the result of the human body skin patch test shows that: each group of subjects observed skin reactions at 0.5h, 6h, 12h, 24h and 48h through the spot-pasting test of the fair and white mask of examples 1-3, comparative example 1 and comparative example 2, and all subjects did not have adverse skin reactions, which indicates that the fair and white mask prepared by the invention is safe to use.

Test example two, evaluation of whitening Effect of fair and bright whitening mask

1. And (3) testing a sample: fair and bright white masks prepared in example 1, example 2, example 3, comparative example 1 and comparative example 2.

2. The test method comprises the following steps:

50 female subjects are selected to participate in the test, the test is 20-46 years old, and the exclusion conditions of the subjects meet the inclusion and exclusion standards of the cosmetic contact dermatitis diagnosis standard and treatment principle. The test part is the inner side of the crank arm, the left arm and the right arm are randomly arranged to be a test area, before the test, the MI value of the skin melanin content of the test part of each test subject is tested by using a skin melanin and heme tester, all the test subjects are randomly divided into 5 groups according to the MI value, each group comprises 10 persons, namely, a group of example 1, a group of example 2, a group of example 3, a group of comparative example 1 and a group of comparative example 2, the fair and bright white masks prepared in the steps of example 1, example 2, example 3, comparative example 1 and comparative example 2 are respectively used, the bright and white masks are coated once at night and are continuously used for 12 weeks, and other cosmetics are not used on the test part during the test. And testing the MI value of the skin melanin content of the tested part of each tested subject by using a skin melanin and heme tester. The test site is washed before the MI value of the melanin content of the skin is tested.

3. And (3) test results:

the test results are shown in table 1.

Table 1: influence of fair and bright whitening mask on MI value of skin melanin content

As can be seen from table 1, compared with the subjects in the comparative example 1 and the comparative example 2, the MI values of the skin melanin contents of the subjects in the examples 1 to 3 were significantly reduced, which indicates that the fair and white mask obtained in the examples 1 to 3 of the present invention can significantly reduce the MI values of the skin melanin contents, and the fair and white mask provided by the present invention has significant whitening effects.

Third test example evaluation of anti-aging Effect of fair and bright white mask

2. Test animals: 80 healthy Kunming mice are taken, 9-11 weeks old, 40g in weight and half in sex.

3. The test method comprises the following steps:

kunming mice were randomly divided into groups of example 1, example 2, example 3, comparative example 1 and comparative example 2, each group had 16 males and females, and the white transparent whitening masks prepared in examples 1, 2, 3, 1 and 2 were applied to the test.

Groups of mice were back-dehaired with 0.8% sodium sulfide, exposing a 4cm x 4cm test area. Before the test sample is smeared, warm water is firstly used for cleaning the skin, a corresponding fair and bright white mask is smeared once every day at night, and new mouse hair is shaved off in time during continuous smearing for one month. After 12h of final smearing, the skin tissue of the mouse test area is cut, skin tissue homogenate is prepared, and the activity of superoxide dismutase (SOD) and the content of Malondialdehyde (MDA) are measured.

4. And (3) test results:

the test results are shown in table 2.

Table 2: influence of fair and bright whitening mask on SOD activity and MDA content in skin tissue homogenate

Group of	SOD(U/mgprot)	MDA(nmol/mgprot)
			Blank control group	122.67	3.83
EXAMPLE 1 group	178.48	2.53
			EXAMPLE 2 group	180.36	2.42
EXAMPLE 3 group	184.53	2.36
			Comparative example 1 group	142.96	3.42
Comparative example 2 group	148.17	3.25

As can be seen from Table 2, the fair and bright whitening masks prepared in examples 1-3 of the present invention can significantly improve the activity of SOD in the skin and reduce the content of MDA, which indicates that the fair and bright whitening masks provided by the present invention have a very good anti-aging effect.

Test example four evaluation of moisturizing effect of fair and bright white mask

2. The test method comprises the following steps:

70 female subjects are selected to participate in the test, the test is 21-48 years old, and the exclusion conditions of the subjects meet the inclusion and exclusion standards of the cosmetic contact dermatitis diagnosis standard and treatment principle. 70 subjects were randomized into 5 groups of 14 subjects each.

The test environment temperature is constant at 25 deg.C, relative humidity is 60%, before test, the left and right forearms of the testee are cleaned with alkaline toilet soap, air dried, exposed, and rested for half an hour in the environment. A4 cm by 4cm square test area was drawn on each of the left and right forearms of the subject, with the left arm being a fair and clear white mask test area and the right arm being a blank control test area. Measurements were taken at 10 points within the test area (single measurements) using the Corneometer CM 825PC tester probe and the average value was recorded as a reference. The test area was continuously measured for 70 seconds (continuous measurement) using a Corneometer CM 825PC tester probe, and the average value was recorded as a reference. 1g of fair and bright white mask is applied to a tested area and is evenly applied to the skin for 2 min. Single and continuous measurements were performed at the test sites using probes at 0.5h, 1h, 2h, 4h, 6h, respectively, and the test results were recorded. The percent change in skin moisture at different time points was calculated.

3. And (3) test results:

the test results are shown in tables 3 and 4.

Table 3: single test result for moisturizing property of fair, bright and white mask

Table 4: continuous test result of moisturizing property of fair and bright white mask

As can be seen from tables 3 and 4, the moisturizing properties of the fair whitening masks prepared according to the present invention were significantly increased as compared to those of the fair whitening masks prepared according to comparative examples 1 and 2. The fair and bright white mask can obviously improve the moisture retention of skin and has good lasting moisture retention effect.

Test example five, evaluation of comprehensive Effect of fair, transparent and whitening mask

1. Test materials: fair and bright white masks prepared in example 1, example 2, example 3, comparative example 1 and comparative example 2.

2. The test population: selecting 100 female subjects with the age of 25-40 years, wherein the skin of the female subjects is healthy and meets the voluntary selection criteria of the female subjects.

3. The test method comprises the following steps:

subjects were randomly divided into 5 groups of 20 persons each, namely, example 1 group, example 2 group, example 3 group, comparative example 1 group and comparative example 2 group, respectively, using the fair-whitening masks prepared in examples 1 to 3 of the present invention, and the fair-whitening masks prepared in comparative example 1 and comparative example 2, respectively. After each group of subjects cleaned their faces, the product of the invention was applied to their faces.

4. Test results

The test results are shown in table 5.

Table 5: comparison of comprehensive evaluation results of fair, clear and white mask

As can be seen from table 5, compared with the fair and bright white masks prepared in comparative examples 1 and 2, the fair and bright white masks prepared in examples 1 to 3 of the present invention have significantly better moisturizing degree, extensibility, mildness, absorbability, yellow-removing effect and spot-removing effect, which indicates that the components in the fair and bright white mask of the present invention cooperate with each other to achieve the optimal overall effect.

The tester responds that the fair and transparent whitening mask has good permeability and easy absorption, the skin is fresh and cool and is not sticky after the mask is used, the moisture is supplemented, the dryness, roughness and tightness can be effectively improved, the skin can be whitened, refined, smooth and soft, the integral brightness of the skin is improved, the skin elasticity is improved, and the mask is nourished and repaired. The long-term use of the whitening cream can whiten skin, dispel color spots, improve the dark yellow state of skin and restore the white and transparent state. No allergic symptoms were observed in all the subjects.

Claims

1. The fair-skinning and whitening mask is characterized by comprising the following components in percentage by weight:

propylene glycol 5%, hydroxyethyl urea 2%, betaine 1%, 3-O-ethyl ascorbic acid 1%, arbutin 1%, purslane extract 0.5%, thyme extract 0.5%, peony whitening essence 0.5%, panthenol 0.5%, niacinamide 0.5%, jojoba wax PEG-120 esters 0.5%, tranexamic acid 0.3%, carbomer 0.1%, triethanolamine 0.09%, sodium hyaluronate 0.06%, PEG-40 hydrogenated castor oil 0.05%, methylparaben 0.05%, phenoxyethanol/ethylhexyl glycerin 0.15%, p-hydroxyacetophenone 0.3%, essence 0.005% and water 85.895%;

the preparation method of the fair and bright facial mask comprises the following steps:

s4, cooling the material B obtained in the step S3 to 40 ℃, adding triethanolamine, a purslane extract, a thyme extract, peony whitening essence, 3-O-ethyl ascorbic acid, arbutin, panthenol, nicotinamide, tranexamic acid, phenoxyethanol/ethylhexyl glycerol, p-hydroxyacetophenone and the solution A obtained in the step S1, stirring uniformly, cooling to normal temperature, sampling, inspecting, and discharging after the materials are qualified to obtain the product;

the stirring speed of the above stirring was 60 r/min.