Cosmetic product for sensitive skin and method for preparing the same

Abstract

The application discloses a kind of cosmetics suitable for sensitive skin and preparation method thereof, preparation raw materials include A phase, B phase, C phase and D phase;The preparation raw materials of A phase include emulsifier, emollient, thickening agent, antioxidant;The preparation raw materials of B phase include water, humectant, chelating agent, thickening agent B;The preparation raw materials of C phase include emulsifier C, humectant C, plant extract;The preparation raw materials of the D phase include preservative.The application does not contain synthetic pigment, plastic micro powder, mineral oil and other harmful ingredients of skin, nature is mild, no stimulation, no toxic side effect, the subject is continuously used the cosmetic prepared by the application 28 days, and the decrease rate of lactic acid stinging score compared with base value is 50.38%, and product effect is remarkable, and effect is fast.

Description

Technical Field

[0001] This invention relates to the field of A61K8 / 9794, and more specifically to a cosmetic product suitable for sensitive skin and a method for preparing the same. Background Technology

[0002] With the continuous improvement of living standards, skincare has become a daily necessity for modern people. Sensitive skin is a physiological overreaction of the skin to environmental or internal factors, rather than a disease. Using irritating skincare products, or due to environmental factors and seasonal changes, can aggravate skin discomfort symptoms and seriously affect the quality of daily life. In order to reduce the skin from being irritated by cosmetics that cause adverse reactions, a number of skincare products with soothing, repairing and moisturizing effects have appeared on the market for sensitive skin people.

[0003] CN108434063A discloses a skin care composition with soothing and repairing effects on sensitive skin, as well as its preparation and application. The main components are wild chrysanthemum extract, dendrobium officinale extract, sophora flavescens extract and aloe vera extract. It has the effects of being gentle, soothing and repairing sensitive skin. The ingredients are simple, but the moisturizing effect is poor and the efficacy is not obvious.

[0004] CN109806210A discloses a cosmetic with β-glucan complex as the main active ingredient. The raw materials include: emulsifier, cetearyl alcohol, isononyl isononanoate, shea butter, IMP, nut oil, silicone oil, natural extracts and polypeptide powder, fungal β-glucan complex raw material, xanthan gum, etc. Plant extracts and β-glucan complex are used as important ingredients in cosmetics. It has low toxicity and side effects and is not likely to cause drug dependence. However, the product has a poor skin feel and is obviously greasy. Summary of the Invention

[0005] To address the aforementioned problems, this invention discloses a cosmetic product suitable for sensitive skin, comprising phases A, B, C, and D. Phase A comprises emulsifiers, emollients, thickeners, and antioxidants; Phase B comprises water, humectants, chelating agents, and thickener B; Phase C comprises emulsifier C, humectant C, and plant extracts; and Phase D comprises preservatives.

[0006] In one embodiment, the raw materials for preparing phase A, by weight, include 1-8 parts emulsifier, 1-18 parts emulsifier, 0.2-2 parts thickener, and 0.2-7 parts antioxidant.

[0007] Preferably, the raw materials for preparing phase A, by weight, include 2-6 parts emulsifier, 3-15 parts emulsifier, 0.5-1.5 parts thickener, and 0.5-6 parts antioxidant.

[0008] In one embodiment, the emulsifier is selected from one or more of cationic emulsifiers, anionic emulsifiers, and nonionic emulsifiers.

[0009] Preferably, the emulsifier is a nonionic emulsifier, which is a combination of glucoside emulsifier and stearate emulsifier in a mass ratio of (1-3):(1-3).

[0010] In one embodiment, the glucosinolate emulsifier is a C12-20 alkyl glucosinolate.

[0011] Preferably, the C12-20 alkyl glucoside further includes emulsifiers and stabilizers.

[0012] More preferably, the emulsifier stabilizer is an alcohol; more preferably, the alcohol has a carbon content greater than 10, such as a C14-22 alcohol.

[0013] Preferably, the stearate emulsifier is glyceryl stearate / PEG-100 stearate.

[0014] In one embodiment, the emollient is selected from one or more of fatty alcohols, fatty acid esters, silicone oils, and fatty acids.

[0015] Preferably, the emollient is a combination of fatty alcohols, fatty acid esters and silicone oil in a mass ratio of (0.1-3):(3-12):(1-5).

[0016] More preferably, the fatty alcohol is a C16-18 alcohol; the fatty acid ester is a combination of isopropyl palmitate and caprylic / capric triglyceride; and the silicone oil is dimethyl silicone oil.

[0017] More preferably, the mass ratio of isopropyl palmitate to caprylic / capric triglyceride is (1-7):(2-4).

[0018] In one embodiment, the thickener is an organic natural thickener and / or an organic synthetic thickener.

[0019] Preferably, the thickener is an organic synthetic thickener.

[0020] More preferably, the organic synthetic thickener is hydrogenated polyisobutylene.

[0021] In one embodiment, the antioxidant is selected from one or more of natural plant oils, vitamins, and vitamin derivatives.

[0022] Preferably, the antioxidant is a combination of natural plant oil and vitamin derivative in a mass ratio of (0.3-4):(0.1-2).

[0023] More preferably, the natural plant oil is macadamia nut oil and shea butter; and the vitamin derivative is vitamin E acetate.

[0024] In one embodiment, the raw materials for preparing phase B, by weight, include 60-95 parts water, 5-8 parts humectant, 0.01-0.2 parts chelating agent, and 0.01-0.1 parts thickener B.

[0025] Preferably, the water is double-distilled water.

[0026] In one embodiment, the moisturizer is selected from one or more of polyols, pseudo-natural moisturizing factors, and sugars.

[0027] Preferably, the humectant is a polyol.

[0028] More preferably, the moisturizer is glycerin.

[0029] In one embodiment, the chelating agent is selected from any one of phosphates, aminocarboxylic acids, and hydroxycarboxylic acids.

[0030] Preferably, the chelating agent is disodium EDTA.

[0031] In one embodiment, the thickener B is an organic natural thickener and / or an organic synthetic thickener.

[0032] Preferably, the thickener B is an organic natural thickener.

[0033] More preferably, the organic natural thickener is gum arabic and xanthan gum.

[0034] In one embodiment, the raw materials for preparing phase C, by weight, include 0.1-5 parts emulsifier C, 0.1-3 parts humectant C, and 0.001-8 parts plant extract.

[0035] In one embodiment, the emulsifier C is a nonionic emulsifier.

[0036] Preferably, the nonionic emulsifier is a polyester emulsifier.

[0037] More preferably, the polyester emulsifier is polyoleate.

[0038] More preferably, the polyoleate is polysorbate-80.

[0039] In one embodiment, the emulsifier C further includes an emulsifier stabilizer.

[0040] Preferably, the emulsifier stabilizer includes acrylic copolymers and alkanes.

[0041] More preferably, the acrylic copolymer is a sodium acrylate / acryloyldimethyl taurate copolymer; and the alkane is a C10-C20 alkane.

[0042] More preferably, the alkane is isohexadecane.

[0043] In one embodiment, the moisturizer C is selected from one or more of polyols, pseudo-natural moisturizing factors, and sugars.

[0044] Preferably, the humectant C is a sugar.

[0045] More preferably, the moisturizer C is a high-efficiency moisturizing molecular membrane 2013CPE, which is a polysaccharide with multiple hydroxyl groups. It can interact with each other and with the stratum corneum, thereby forming a continuous film on the skin surface and increasing the skin's moisture content.

[0046] In one embodiment, the plant extract is selected from one or more of the following: purslane extract, Swiss edelweiss extract, cowherb extract, kudzu root extract, wakame extract, and tremella extract.

[0047] Preferably, the plant extract is a combination of purslane extract and Swiss edelweiss extract in a mass ratio of (0.01-3):(0.01-3).

[0048] To make cosmetics suitable for consumers with sensitive skin, this invention simplifies the formula components. From a wide range of skincare ingredients, it selects purslane extract and Swiss edelweiss extract in a mass ratio of (0.01-3):(0.01-3). This helps to eliminate free radicals in the body, delay skin aging, repair the skin barrier function, and reduce the irritation of skincare products. It has a gentle, soothing, and repairing effect on sensitive skin. Working together with the highly effective moisturizing molecular membrane 2013CPE, it can reduce the aggression of the external environment on the skin, providing a strong and reliable "protective umbrella" for the skin, and increasing the skin's moisture content, thereby achieving moisturizing, soothing, and repairing effects. However, during the research and development process, the applicant discovered that the formulation products had poor stability and were prone to separation. Even the addition of nonionic emulsifiers could not effectively solve the problem, such as cetearyl alcohol polyether-21. The applicant continuously optimized the formulation, adjusted the water-oil ratio, and used a combination of glucoside emulsifiers, stearate emulsifiers, and polyester emulsifiers as nonionic emulsifiers. Ultimately, a stable product was formed. The possible reason is that glucoside emulsifiers contain a large number of hydrophilic hydroxyl groups, which can better reduce the surface tension between oil and water in the system, but they are not easy to form a stable emulsion. With the action of stearate emulsifiers and polyester emulsifiers, the electrolyte resistance, temperature resistance and emulsion stability of the system were further improved.

[0049] In one embodiment, the raw materials for preparing the D phase include 0.1-4 parts of preservative by weight.

[0050] The preservative mentioned is a commonly used preservative in cosmetics, and those skilled in the art can select it according to the actual situation.

[0051] Preferably, the preservative is p-hydroxyacetophenone and 1,2-hexanediol in a mass ratio of (0.1-2):(0.1-2).

[0052] Another aspect of the present invention discloses a method for preparing the cosmetic, comprising the following steps: heating phase A and phase B raw materials to 75-83°C respectively, adding phase B to phase A and stirring for 20-40 minutes to mix and disperse evenly, adding phases C and D, adjusting the pH to 5.2-6.0 with citric acid and sodium hydroxide, homogenizing for 15-30 minutes, cooling while stirring, and filling.

[0053] Preferably, phase A and phase B raw materials are heated to 80°C respectively. Phase B is added to phase A and stirred for 30 minutes to ensure uniform mixing and dispersion. Phases C and D are then added, and the pH is adjusted to 5.5 with citric acid and sodium hydroxide. The mixture is homogenized for 20 minutes, cooled while stirring, and then filled.

[0054] Beneficial effects 1. This invention has a simplified formula with purslane extract and Swiss edelweiss extract in a mass ratio of (0.01-3):(0.01-3). This formula repairs the skin barrier function, reduces the irritation of skincare products, and has a gentle, soothing, and repairing effect on sensitive skin.

[0055] 2. The active ingredients work together with the highly effective moisturizing molecular membrane 2013CPE to reduce the damage of the external environment to the skin, providing a tough and reliable "protective umbrella" for the skin, and increasing the skin's moisture content, thereby achieving the effects of moisturizing, soothing and repairing.

[0056] 3. By adjusting the water-oil ratio and screening emulsifiers, a stable product with a good skin feel was finally obtained.

[0057] 4. After 28 days of continuous use of the cosmetic prepared by this invention, the lactic acid stinging score of the subjects decreased significantly compared with the baseline value (p<0.001), with a decrease rate of 50.38%, indicating that the product has significant effects and takes effect quickly.

[0058] 5. This invention does not contain synthetic pigments, plastic powders, mineral oils or other ingredients harmful to the skin. It is mild, non-irritating and has no toxic side effects. Detailed Implementation

[0059] Example 1 Example 1 discloses a cosmetic product suitable for sensitive skin, and the raw materials for its preparation are shown in the table below.

[0060]

[0061] The C14-22 alcohol / C12-20 alkyl glucoside was purchased from Guangzhou Baihaobo Co., Ltd.

[0062] The glyceryl stearate / PEG-100 stearate was purchased from Guangzhou Baihaobo Co., Ltd.

[0063] The C16-18 alcohol was purchased from Hanlin Chemical.

[0064] The hydrogenated polyisobutylene was purchased from Guangzhou Baihaobo Co., Ltd.

[0065] The macadamia nut oil was purchased from Baihaobo.

[0066] The dimethyl silicone oil was purchased from Hanlin Chemical.

[0067] The shea butter was purchased from Guangzhou Baihaobo Co., Ltd.

[0068] The gum arabic / xanthan gum was purchased from Guangzhou Baihaobo Co., Ltd.

[0069] The sodium acrylate / acryloyldimethyl taurate copolymer, isohexadecane, and polysorbate-80 were purchased from Guangzhou Baihaobo Co., Ltd.

[0070] The highly efficient moisturizing molecular membrane 2013CPE was purchased from Guangzhou Baihaobo Co., Ltd.

[0071] The purslane extract was purchased from Guangzhou Baihaobo Co., Ltd.

[0072] The Swiss edelweiss extract was purchased from DSM.

[0073] This embodiment 1 discloses another aspect of the preparation method of the cosmetic, the steps of which are as follows: heating phase A and phase B raw materials to 80°C respectively, adding phase B to phase A and stirring for 30 minutes to mix and disperse evenly, adding phases C and D, and adjusting the pH to 5.5 with citric acid and sodium hydroxide, homogenizing for 20 minutes, cooling while stirring, and filling.

[0074] Example 2 The difference between this embodiment and Example 1 is that the two emulsifiers in phase A are cetearyl alcohol polyether-21, purchased from Hanlin Chemical, and hydrogenated polyisobutylene is replaced with hydrogenated polydecene, purchased from Cosfa.

[0075] That is, the A phase component is:

[0076] Example 3 The difference between this embodiment and Example 1 is that isopropyl palmitate and caprylic / capric triglyceride in phase A are replaced with dimeric pentaerythritol hexacaprylate / hexacapric acid ester (and) tridecyl trimellitate (and) tridecyl stearate (and) neopentyl glycol dicaprylate / dicaprylate, purchased from Shanghai Baihaobo Biotechnology Co., Ltd., named MOS350.

[0077]

[0078] Example 4 The difference between this embodiment and Embodiment 1 lies in the formulation, as detailed in the table below.

[0079] Performance testing 1. Stability test: Observe the product appearance at room temperature (30℃) and record the results.

[0080] 2. Skin feel test: Apply the stable product to the skin and record the results.

[0081]

[0082] Example 1: Efficacy and Performance Test Project: 1. Human efficacy evaluation test - moisturizing, soothing, and repairing 2. Consumer testing - gentle and non-irritating, suitable for sensitive skin. Reference for the plan: T / GDCDC021-2022 Test Method for Soothing Efficacy of Cosmetics, QB / T4256—2011 Guidelines for Evaluation of Moisturizing Efficacy of Cosmetics, T / GDCA009—2022 Human Evaluation Method for Repairing Efficacy of Cosmetics, Liu Weiyi, Zhou Lin, Zhao Hua. Evaluation of Cosmetic Efficacy (XIII) - Consumer Use Test [J]. Daily Chemical Industry, 2021, 51(06):485-490.

[0083] Detection method: Thirty-three healthy Chinese male and female subjects, aged 18-50 years, were selected. These subjects reported having sensitive skin with a lactic acid stinging score ≥3, dry and rough facial skin lacking moisture, poor barrier function, and visible facial redness. A before-and-after control method was used. Skin stratum corneum moisture content and transepidermal water loss were measured, and subjective assessments were conducted. Full-face photographs of the subjects were also taken. Evaluation results before and after product use were compared using statistical tests to determine if there were statistically significant differences.

[0084] Detection site: (1) Lactic acid stinging score - nasolabial groove (2) Skin stratum corneum moisture content - cheeks (3) Transepidermal water loss value of skin - cheek (4) VISIA skin red area percentage - full face (5) VISIA skin red zone a* value - full face (6) Safety evaluation by dermatologists—full face (7) Self-assessment - full face detection indicators efficacy testing

[0085] Lactic acid stinging score

[0086] Testing process Testing process arrangement

[0087] Statistical methods Data were analyzed using SPSS. If the data were normally distributed, the T-test was used for statistical analysis; if the data were not normally distributed, the rank-sum test was used for statistical analysis. All statistical methods used two-tailed tests with a significance level of α=0.05.

[0088] Statistical method for questionnaire results after product use: The percentage of people with a score ≥4 was counted; the binomial distribution method was used for statistical analysis, the expected value was set to 0.5, and the significance level was α=0.05. If the p-value is less than 0.05, it indicates that there is a significant difference.

[0089] The safety assessment uses a statistical descriptive approach to analyze the severity and duration of adverse events on a case-by-case basis.

[0090] The formula for calculating the rate of change is as follows: Δ (difference) after 14 days of using the test product = D14 - D0 △ (difference) after 28 days of using the test product = D28 - D0 The rate of change of the test product over 14 days = [MeanD14] [Mean(D0)] / Mean(D0)×100% The rate of change of the test product over 28 days = [MeanD28] [Mean(D0)] / Mean(D0)×100% In the formula, D0 – Baseline skin parameters in the test area before the use of the test product.

[0091] D14 – Skin parameter values ​​after 14 days of use of the test product in the test area.

[0092] D28 – Skin parameter values ​​in the test area after 28 days of use of the test product.

[0093] Sample completion status Thirty-three subjects were enrolled and the final count was performed. Of these, two were male and 31 were female, aged 22 to 47 years, with a mean age of 38.21 ± 1.13 years. The experimental product used was Example 1. Usage: After cleansing, apply an appropriate amount of product evenly to the face and gently massage until fully absorbed. Use twice daily, morning and evening.

[0094] Feedback from users of the trial products Each subject used the test product as required within the specified time. According to the 2015 edition of the "Cosmetic Safety Technical Specifications", the skin reaction records showed that no adverse reactions occurred.

[0095] Instrument test results and statistical analysis results (1) Moisture content of the stratum corneum of the skin Results of surface skin stratum corneum moisture content test

[0096] Note: Data in the table are mean ± standard error. Improvement rate of skin stratum corneum moisture content

[0097] Statistical analysis results of moisture content in the stratum corneum of the skin

[0098] Note: 1. Statistical method: The T-test method was used for analysis, and the significance level α=0.05.

[0099] 2. Significance notation method: "ns" indicates no statistical difference, p≥0.05; p<0.05 indicates a significant difference. ("*" means 0.01 ≤ p < 0.05; "**" means 0.001 ≤ p < 0.01; "***" means p < 0.001).

[0100] 3. Sample size: N=33.

[0101] Interpretation of results: After subjects used the test product Example 1 for 14 consecutive days, the skin stratum corneum moisture content increased significantly compared with the baseline value (p<0.001), with an increase rate of 17.20%; after subjects used the test product Example 1 for 28 consecutive days, the skin stratum corneum moisture content increased significantly compared with the baseline value (p<0.001), with an increase rate of 34.55%.

[0102] (2) Transepidermal water loss value Results of transepidermal water loss test on the skin

[0103] Note: Data in the table are mean ± standard error. Improvement rate of transepidermal water loss in the skin

[0104] Statistical analysis results of transepidermal water loss from the skin

[0105] Note: 1. Statistical methods: T-test and rank-sum test were used for analysis, with a significance level of α=0.05.

[0106] 2. Significance labeling method: "ns" indicates no statistical difference, p≥0.05; p<0.05 indicates a significant difference ("*" indicates 0.01≤p<0.05; "**" indicates 0.001≤p<0.01; "***" indicates p<0.001).

[0107] 3. Sample size: N=33. Interpretation of results: After subjects used the test product Example 1 continuously for 14 days, the transepidermal water loss value of the skin was significantly reduced compared with the baseline value (0.01≤p<0.05), with a reduction rate of 3.59%; After subjects used the test product Example 1 continuously for 28 days, the transepidermal water loss value of the skin was significantly reduced compared with the baseline value (0.001≤p<0.01), with a reduction rate of 10.12%.

[0108] (3) Percentage of VISIA red area on the skin Table: VISIA Skin Red Area Percentage Detection Results

[0109] Note: Data in the table are mean ± standard error. Table VISIA: Improvement Rate of Skin Redness Area Percentage

[0110] Table 9.3.3-3 Statistical Analysis Results of VISIA Skin Red Area Percentage

[0111] Note: 1. Statistical method: The T-test method was used for analysis, and the significance level α=0.05.

[0112] 2. Significance labeling method: "ns" indicates no statistical difference, p≥0.05; p<0.05 indicates a significant difference ("*" indicates 0.01≤p<0.05; "**" indicates 0.001≤p<0.01; "***" indicates p<0.001).

[0113] 3. Sample size: N=33. Interpretation of results: After subjects used the test product Example 1 continuously for 14 days, the proportion of VISIA skin red area decreased significantly compared with the baseline value (p<0.001), with a decrease rate of 8.32%; after subjects used the test product Example 1 continuously for 28 days, the proportion of VISIA skin red area decreased significantly compared with the baseline value (p<0.001), with a decrease rate of 12.26%.

[0114] (4) VISIA a* value of the skin red zone Table: VISIA Skin Red Zone a* Value Detection Results

[0115] Note: Data in the table are mean ± standard error. Table VISIA Skin Red Zone a* Value Improvement Rate

[0116] Table: Statistical Analysis Results of VISIA Skin Red Zone a* Values

[0117] Note: 1. Statistical method: The T-test method was used for analysis, and the significance level α=0.05.

[0118] 2. Significance labeling method: "ns" indicates no statistical difference, p≥0.05; p<0.05 indicates a significant difference ("*" indicates 0.01≤p<0.05; "**" indicates 0.001≤p<0.01; "***" indicates p<0.001).

[0119] 3. Sample size: N=33. Interpretation of results: After subjects used the test product Example 1 for 14 consecutive days, the VISIA skin red area a* value decreased significantly compared with the baseline value (0.001≤p<0.01), with a decrease rate of 6.67%; after subjects used the test product Example 1 for 128 consecutive days, the VISIA skin red area a* value decreased significantly compared with the baseline value (p<0.001), with a decrease rate of 9.21%.

[0120] (5) Lactic acid stinging score Table of lactic acid stinging score test results

[0121] Note: Data in the table are mean ± standard error. Table of lactic acid stinging score improvement rate

[0122] Statistical analysis results of lactic acid stinging scores.

[0123] Note: 1. Statistical method: The T-test method was used for analysis, and the significance level α=0.05.

[0124] 2. Significance labeling method: "ns" indicates no statistical difference, p≥0.05; p<0.05 indicates a significant difference ("*" indicates 0.01≤p<0.05; "**" indicates 0.001≤p<0.01; "***" indicates p<0.001).

[0125] 3. Sample size: N=33. Interpretation of results: After 28 days of continuous use of the test product Example 1, the lactic acid stinging score of the subjects decreased significantly compared with the baseline value (p<0.001), with a decrease rate of 50.38%.

[0126] (6) Safety evaluation by dermatologists Table of skin reaction grading standards for human trial use

[0127] Results of human trial

[0128] self assessment The table shows the evaluation results of subjects who used the test product continuously for 14 days.

[0129] Note: 1. Evaluation indicators: 1 is "strongly disagree", 2 is "disagree", 3 is "neutral", 4 is "agree", and 5 is "strongly agree".

[0130] 2. Significance labeling method: "ns" indicates no statistical difference, p≥0.05; p<0.05 indicates a significant difference ("*" indicates 0.01≤p<0.05; "**" indicates 0.001≤p<0.01; "***" indicates p<0.001). Interpretation of Results: After 14 days of continuous use of the test product (Example 1), 93.94% of the participants felt that the product had a moisturizing effect on their skin; 100.00% of the participants felt that the product was gentle and non-irritating; 96.97% of the participants felt that the product had a soothing effect on their skin; 87.88% of the participants felt that the product had a repairing effect on their skin; 96.97% of the participants felt that the product improved dry skin; 84.85% of the participants felt that the product improved sensitive skin; 90.91% of the participants felt that the product improved rough skin; 93.94% of the participants felt that the product improved skin radiance; 96.97% of the participants felt that the product could improve rough skin; 96.97% of the participants felt that this product was suitable for sensitive skin; 100.00% of the participants considered this product gentle and non-irritating; and 100.00% of the participants were generally satisfied with this product. 96.97% of the participants were willing to continue using the product; 96.97% of the participants were willing to recommend the product to their friends.

[0131] The table shows the evaluation results of subjects who used the test product continuously for 28 days.

[0132] Note: 1. Evaluation indicators: 1 is "strongly disagree", 2 is "disagree", 3 is "neutral", 4 is "agree", and 5 is "strongly agree".

[0133] 2. Significance labeling method: "ns" indicates no statistical difference, p≥0.05; p<0.05 indicates a significant difference ("*" indicates 0.01≤p<0.05; "**" indicates 0.001≤p<0.01; "***" indicates p<0.001). Interpretation of Results: After 28 days of continuous use of the test product (Example 1), 100.00% of the participants reported that the product had a moisturizing effect on their skin; 100.00% of the participants reported that the product was gentle and non-irritating; 100.00% of the participants reported that the product had a soothing effect on their skin; 100.00% of the participants reported that the product had a repairing effect on their skin; 100.00% of the participants reported that the product improved dry skin; 100.00% of the participants reported that the product improved sensitive skin; 93.94% of the participants reported that the product improved rough skin; 93.94% of the participants reported that the product improved skin radiance; 96.97% of the participants reported that the product effectively improved rough skin; 100.00% of the participants felt that the product was suitable for sensitive skin; 100.00% of the participants considered the product gentle and non-irritating; and 100.00% of the participants were generally satisfied with the product. 100.00% of the participants were willing to continue using this product; 100.00% of the participants were willing to recommend this product to their friends.

Claims

1. A cosmetic product suitable for sensitive skin, characterized in that, The raw materials for preparation are phases A, B, C, and D. By weight, phase A consists of: 1 part C14-22 alcohol / C12-20 alkyl glucoside, 1 part glyceryl stearate / PEG-100 stearate, 1.5 parts C16-18 alcohol, 1 part hydrogenated polyisobutylene, 2.0 parts macadamia nut oil, 3.5 parts isopropyl palmitate, 2.5 parts caprylic / capric triglyceride, 2 parts dimethyl silicone oil, 1 part shea butter, and 0.5 parts vitamin E acetate; phase B consists of: 69.53 parts double-distilled water, 6.0 parts glycerin, 0.05 parts EDTA-Na2, and 0.02 parts gum arabic / xanthan gum; phase C consists of: sodium acrylate / sodium acryloyl dimethyl taurate copolymer and isohexadecane and polysorbate-80, 1.5 parts, and a high-efficiency moisturizing molecular membrane 2013CPE. 2 parts of purslane extract, 1 part of Swiss edelweiss extract, 2 parts of Swiss edelweiss extract; Phase D consists of 0.2 parts of p-hydroxyacetophenone and 0.2 parts of 1,2-hexanediol.

2. A method for preparing the cosmetic according to claim 1, characterized in that, Includes the following steps: Heat phase A and phase B raw materials to 75-83℃ respectively. Add phase B to phase A and stir for 20-40 minutes until evenly mixed and dispersed. Add phases C and D, and adjust the pH to 5.2-6.0 with citric acid and sodium hydroxide. Homogenize for 15-30 minutes, cool while stirring, and then fill.

Images