An EGCG composition, cosmetic, and preparation method thereof with antioxidant, whitening, and anti-aging effects.

Abstract

This invention belongs to the field of cosmetics, specifically disclosing an EGCG composition, cosmetic, and preparation method thereof that have antioxidant, whitening, and anti-aging effects. The EGCG composition of this invention is stable, fast-acting, and gentle, and also possesses significant antioxidant, whitening, anti-aging, and repairing effects.

Description

Technical Field

[0001] This invention belongs to the field of cosmetics, specifically relating to an EGCG composition with antioxidant, whitening and anti-aging effects, a cosmetic product and its preparation method. Background Technology

[0002] Human skin is susceptible to problems such as pigmentation, sagging, aging, and wrinkles due to factors like ultraviolet radiation, environmental pollution, dietary intake, and aging. Seeking cosmetics that can improve dull skin and wrinkles to maintain a fair, firm, and wrinkle-free complexion is currently one of the main approaches. However, current cosmetics with whitening and anti-wrinkle effects still suffer from drawbacks such as poor whitening and anti-wrinkle efficacy and high overall product costs.

[0003] EGCG, or epigallocatechin gallate, has the molecular formula C0.05. 22 H 18 O 11 EGCG, a major component of tea polyphenols, is a water-soluble catechin monomer that can be isolated from tea leaves. Due to its unique stereochemical structure, it possesses extremely strong antioxidant activity, at least 100 times that of vitamin C or 25 times that of vitamin E. Currently, EGCG is used in the pharmaceutical field as an active ingredient with antibacterial, antiviral, antioxidant, anti-atherosclerotic, antithrombotic, anti-angiogenic, anti-inflammatory, and anti-tumor effects. However, when added to conventional cosmetics, its instability due to its extremely strong antioxidant properties limits its application in the cosmetic industry.

[0004] Matsutake mushrooms, also known as pine mushrooms, are basidiomycetes belonging to the genus *Tricholoma*. They are a Class II protected plant in China, widely distributed in Northeast and Southwest my country, with Yunnan province being particularly renowned for their production. Matsutake mushrooms have a rich and diverse composition, primarily including polysaccharides, steroids, saponins, oils, triterpenes, and other active ingredients, as well as various minerals, vitamins, and amino acids. Extracts from these mushrooms, when used in cosmetics, offer whitening, antioxidant, and anti-aging benefits. Furthermore, their potent antioxidant properties can lighten skin blemishes and increase skin elasticity and resilience. Although matsutake mushroom extracts offer numerous skincare benefits, their high cost has limited their widespread application in cosmetics.

[0005] Many harmful bacteria on the skin thrive in alkaline environments. Maintaining an acidic environment helps fight infection, enhances the skin's barrier function, and promotes a healthy skin microecology. Yeast ferment filtrate is rich in small-molecule amino acids, peptides, nucleotides, vitamins, and other natural active ingredients. It is weakly acidic, which can inhibit harmful bacteria on the skin, balance oil production, brighten and lighten dark spots, provide antioxidant benefits, and repair the skin. Furthermore, its high content of natural moisturizing factors (NMF) promotes hydration of the stratum corneum, facilitating nutrient absorption and conversion, making it an excellent comprehensive skin conditioner. However, despite its high nutrient content, the weakly acidic nature of yeast ferment filtrate can irritate the skin when added to cosmetics, limiting its application. Summary of the Invention

[0006] In view of the problems of poor whitening and anti-wrinkle effects of cosmetics in the prior art, the present invention will provide an EGCG composition, a cosmetic and a method for preparing the same.

[0007] To achieve the above objectives, the following technical solutions are specifically included:

[0008] An EGCG composition comprising the following components in parts by weight: 0.001-0.21 parts EGCG, 0.4-4.1 parts matsutake mushroom extract, and 1-10 parts yeast fermentation product filtrate.

[0009] In the EGCG composition of the present invention, the EGCG, matsutake mushroom extract, and yeast fermentation product filtrate work synergistically to significantly enhance the effect. The combination of the three can improve the two major problems of EGCG instability and the irritation of yeast fermentation product filtrate, making the EGCG composition stable, mild and non-irritating, and also has significant antioxidant, whitening, anti-aging and repairing effects.

[0010] Preferably, the EGCG composition comprises the following components in parts by weight: 0.02-0.2 parts EGCG, 0.5-4 parts matsutake mushroom extract, and 1-8 parts yeast fermentation product filtrate.

[0011] At the above-mentioned weight percentages, the EGCG composition exhibits superior antioxidant, whitening, and anti-wrinkle effects.

[0012] Preferably, the mass ratio of EGCG, matsutake mushroom extract, and yeast fermentation product filtrate is (0.05-0.2):(0.5-4)(3-6.5).

[0013] Given the above-mentioned mass ratio of EGCG, matsutake mushroom extract, and yeast fermentation product filtrate, the synergistic effect of these three components is optimal, with the EGCG composition exhibiting superior antioxidant, whitening, and anti-wrinkle effects.

[0014] A cosmetic product containing the aforementioned EGCG composition. The EGCG composition of this invention serves as an active ingredient in cosmetics for antioxidant, whitening, and anti-wrinkle effects.

[0015] Preferably, in the cosmetic, the EGCG composition has a mass percentage content of 1-15%.

[0016] Preferably, the types of cosmetics include facial cleansers, lotions, creams, and masks.

[0017] Preferably, the cosmetic further includes at least one of emollients, dispersants, humectants, preservatives, emulsifying stabilizers, thickeners, and pH adjusters.

[0018] Preferably, the cosmetic comprises the following components in weight percentages: 1-15% of the EGCG composition, 0.1-0.3% of carbomer, 0.01-0.1% of acrylate / C10-30 alkanol acrylate crosspolymer, 0.1-1% of cetearyl alcohol / cetearyl glucoside, 0.5-1.5% of glyceryl stearate / PEG-100 stearate, 1-2% of polydimethylsiloxane, 1-10% of glycerin, 0.5-2% of polymethyl methacrylate, 0.1-0.5% of polyacrylamide / C13-14 isoparaffin, 0.1-0.5% of p-hydroxyacetophenone, 0.1-0.3% of aminomethylpropanol, 0.1-0.8% of phenoxyethanol, 0.1-1% of 1,2-hexanediol, and the balance being water.

[0019] Preferably, the EGCG composition comprises 7.1% carbomer, 0.2% acrylate / C10-30 alkanol acrylate crosspolymer, 0.05% cetearyl alcohol / cetearyl glucoside, 0.4% glyceryl stearate / PEG-100 stearate, 1.5% polydimethylsiloxane, 5% glycerol, 1% polymethyl methacrylate, 0.22% polyacrylamide / C13-14 isoparaffin / lauryl ether-7, 0.25% p-hydroxyacetophenone, 0.15% aminomethylpropanol, 0.4% phenoxyethanol, 0.5% 1,2-hexanediol, and the balance being water.

[0020] Preferably, the method for preparing the cosmetic includes the following steps:

[0021] (1) Mix polymethyl methacrylate and glycerin evenly to obtain material A; heat p-hydroxyacetophenone and glycerin to 45-55℃ to dissolve to obtain material B; disperse EGCG, matsutake mushroom extract and yeast fermentation product filtrate evenly to obtain material C;

[0022] (2) Stir and homogenize water, carbomer, and acrylate / C10-30 alkanol acrylate crosslinking polymer, then heat to 80-85℃ and keep warm to obtain material D;

[0023] (3) Cetearyl alcohol / cetearyl glucoside, glyceryl stearate / PEG-100 stearate and polydimethylsiloxane are stirred and homogenized at 80-85℃ to obtain material E;

[0024] (4) Continue to add material A at 80-85℃ and homogenize, add polyacrylamide / C13-14 isoparaffin and homogenize;

[0025] (5) Cool down to 50-55℃, add the B material and stir evenly, then add aminomethylpropanol and stir evenly; cool down to 40-45℃, add the C material, phenoxyethanol, and 1,2-hexanediol, stir evenly, filter, and discharge to obtain the cosmetic.

[0026] Preferably, in steps (1)-(5), the stirring rate is selected from 600-1200 rpm and the stirring time is selected from 1-5 min.

[0027] Preferably, in steps (2)-(4), the homogenization rate is selected from 1500-2500 rpm, and the homogenization time is selected from 1-5 min.

[0028] Preferably, in step (2), the heat preservation time is 10-15 minutes.

[0029] Compared with the prior art, the present invention has the following beneficial effects: the EGCG composition of the present invention is stable, fast-acting, and mild, and also has significant antioxidant, whitening, anti-aging and repairing effects. Attached Figure Description

[0030] Figure 1 Image of the sample after stability testing of the EGCG composition.

[0031] Figure 2 This is a sample image after the emulsion stability test. Detailed Implementation

[0032] To better illustrate the purpose, technical solution, and advantages of this invention, specific embodiments will be used to further explain the invention below. Unless otherwise specified, the test methods used in the embodiments and / or comparative examples are conventional methods; the materials and reagents used, unless otherwise specified, are commercially available.

[0033] The following is some information about the raw materials used:

[0034] EGCG, purchased from Guangzhou Xiyuan Biotechnology Co., Ltd.;

[0035] Tricholoma matsutake extract, purchased from Bloomage Biotech Ltd.;

[0036] Yeast fermentation product filtrate was purchased from Bloomage Biotechnology Co., Ltd.

[0037] Example 1

[0038] This embodiment describes an emulsion composed of the raw materials listed in Table 1, and the specific preparation method is as follows:

[0039] (1) Mix polymethyl methacrylate and glycerin evenly to obtain material A; heat p-hydroxyacetophenone and glycerin to 50°C to dissolve them completely into a liquid to obtain material B; disperse EGCG, matsutake mushroom extract and yeast fermentation product filtrate evenly to obtain material C;

[0040] (2) Add water, carbomer, and acrylate / C10-30 alkanol acrylate crosspolymer to an emulsifying pot, stir at 800 rpm, homogenize at 1200 rpm, heat to 85°C and keep warm for 12 min until completely dissolved and no gel is formed, to obtain material D.

[0041] (3) Cetearyl alcohol / cetearyl glucoside, glyceryl stearate / PEG-100 stearate and polydimethylsiloxane are placed in an oil phase pot and stirred at a rate of 700 rpm. Then the temperature is raised to 85°C and stirred at a rate of 900 rpm and homogenized at a rate of 2300 rpm for 4 min at this temperature to obtain material E.

[0042] (4) Pour material D into material E, stir at 800 rpm, continue to add material A at 85°C and homogenize at 2300 rpm for 2 min, add polyacrylamide / C13-14 isoparaffin / lauryl alcohol polyether-7 and homogenize at 2300 rpm until completely emulsified and there is no oil on the surface, then start cooling.

[0043] (5) Cool down to 50°C and add the B material and stir evenly at a speed of 1000 rpm. Then add aminomethylpropanol and continue stirring evenly. Cool down to 40°C again and add the C material, phenoxyethanol, and 1,2-hexanediol. Continue stirring evenly and control the process until it is qualified. Filter the material (using a 150-mesh filter bag) and discharge the material. After discharge, let it stand. Inspect the semi-finished product. After passing the inspection, fill and package the product to obtain the emulsion.

[0044] Table 1

[0045]

[0046]

[0047] Test Example 1: Stability Test

[0048] Test samples: The EGCG composition with antioxidant, whitening and anti-aging properties prepared in Example 4 and the emulsion containing the EGCG composition.

[0049] After all physicochemical and appearance indicators meet the standards, the samples will be divided into five groups for testing:

[0050] (1) Control group, no treatment;

[0051] (2) Room temperature test group, placed at 25℃ for 13 weeks;

[0052] (3) Heat resistance test group, placed at 40℃-48℃ for 13 weeks;

[0053] (4) Cold resistance test group, placed at 5℃-15℃ for 13 weeks;

[0054] (5) Alternating test group; the alternation time is set to be changed every 12 hours, and the temperature is alternated between 5℃-15℃ and 48℃ respectively, with 7 days as one cycle, for a total of 13 weeks.

[0055] The test samples were observed on day 1, month 2, and month 3 after treatment. The observation items were the appearance, color, aroma, and skin feel of the test samples.

[0056] Stability testing typically lasts for 3 months, with monthly summaries and reviews. If an extension is required due to special circumstances, the testing period will be 4 or 5 months. The above experimental protocol requires comparison with products at room temperature to assess the material composition. Test results must be recorded in the "Formulation Stability Test Report." Test results are shown in Table 2, and the stability test graphs of the test samples are shown below. Figure 1 and 2 As shown.

[0057] Table 2

[0058]

[0059]

[0060]

[0061] The results show that the EGCG composition with antioxidant, whitening and anti-aging properties prepared in this invention, as well as the emulsion containing the EGCG composition, can maintain stability for more than three months.

[0062] Test Example 2: Safety Patch Test

[0063] Test samples: emulsions from Examples 1-11 and Comparative Examples 1-5.

[0064] Participants: A total of 35 participants, including 9 males and 26 females, aged 22 to 45 years, with a mean age of 26.1 ± 5.6 years, who met the criteria for voluntary inclusion.

[0065] The spot test method is as follows:

[0066] Select qualified patch testing equipment and use the closed patch test method to apply the patch containing the test sample (cut to the size of the patch tester, approximately 50mm). 2 The test sample was placed inside the patch applicator and applied to the back of the subject with hypoallergenic adhesive tape. The sample was removed after 24 hours, and skin reactions were observed at 0.5, 24, and 48 hours after removal. A negative control (blank, no treatment) was also included. The results were recorded according to the grading standards for skin reactions in occlusive patch tests as outlined in Chapter 7 of the "Cosmetic Safety Technical Specifications" (2015 edition). The safety patch test results are shown in Table 3.

[0067] Table 3

[0068]

[0069] Human skin patch test results showed that among 35 subjects, 0 cases of adverse skin reactions occurred, indicating that the EGCG composition prepared in this invention has high safety.

[0070] Test Example 3: Antioxidant Test (DPPH Method)

[0071] Test samples: pretreated emulsions of Examples 1-10 and Comparative Examples 1-5.

[0072] Test Principle: Based on the characteristic that DPPH free radicals possess a single electron and exhibit strong absorption at 517 nm, resulting in a purple color in their alcoholic solution, the absorption gradually disappears when a free radical scavenger is present due to electron pairing. The degree of fading is quantitatively related to the number of electrons accepted, allowing for rapid quantitative analysis using a spectrophotometer. Furthermore, it should be noted that the sample does not possess antioxidant properties, and the testing process may inhibit free radical elimination, potentially leading to an increase in free radicals in the system. Therefore, some data may show negative values.

[0073] 1. Reagents and materials:

[0074] (1) Reagent: 0.2 mM DPPH solution (1,1-diphenyl-2-trinitrophenylhydrazine, C 18 H 12N5O6): Weigh 0.007875g of DPPH powder and dissolve it in 100mL of anhydrous ethanol to prepare 0.2mM DPPH; VC solution (positive control group): Dilute VC sequentially with deionized water to 0.001mg / mL, 0.002mg / mL, 0.004mg / mL, 0.006mg / mL, 0.008mg / mL, 0.01mg / mL, 0.02mg / mL and 0.5mg / mL, and store in brown bottles for later use.

[0075] (2) Instruments and equipment: analytical balance (accurate to 0.001g), ultrasonic cleaner, ultraviolet-visible spectrophotometer.

[0076] 2. Test steps:

[0077] Divide the sample into four sample tubes and add the samples in sequence according to Table 4.

[0078] Positive control group: Set up VC standard control tubes, and add 4.5 mL DPPH and 0.5 mL VC standard control solution to each tube.

[0079] After mixing the solutions in each tube, react at room temperature in the dark for 30 minutes. Zero the spectrophotometer at 517 nm using distilled water and record the absorbance. During data processing, ensure that the absolute difference between two independent measurements obtained under repeatability conditions does not exceed 10% of the arithmetic mean.

[0080] The clearance rate (P) was calculated according to formula (1); the test results are shown in Table 5.

[0081]

[0082] In the above formula, T is the absorbance of the sample tube, which is the absorbance of the solution after the test sample reacts with DPPH; T0 is the background absorbance of the test sample; C is the absorbance of the DPPH tube, which is the absorbance of the DPPH solution without the test sample; and CO is the background absorbance of the solvent (anhydrous ethanol).

[0083] Table 4

[0084]

[0085]

[0086] Table 5

[0087] Example 1 91.88±4.36 Example 2 91.42±2.77 Example 3 94.35±3.74 Example 4 95.79±4.32 Example 5 91.52±0.73 Example 6 92.46±2.48 Example 7 93.12±1.24 Example 8 90.29±4.35 Example 9 90.11±3.68 Example 10 93.46±2.84 Example 11 94.28±1.28 Comparative Example 1 24.45±5.25 Comparative Example 2 53.28±0.64 Comparative Example 3 59.56±4.57 Comparative Example 4 -35.76±3.66 Comparative Example 5 81.92±2.35

[0088] Antioxidant experiments have verified that the EGCG compositions prepared in the embodiments of this invention all have good free radical scavenging and antioxidant effects.

[0089] Test Example 4: Test for Inhibition of Tyrosinase Activity

[0090] Experimental Principle: Tyrosinase is the rate-limiting enzyme in the melanin synthesis pathway. It mainly affects melanin production by influencing the conversion of tyrosine to dopa and the oxidation of dopa to dopaquinone. The principle is that tyrosine or dopa is converted to dopaquinone under the action of tyrosinase. This reaction is a colorimetric reaction, and the inhibition rate of tyrosinase activity by the emulsions of Examples 1-10 and Comparative Examples 1-5 was determined by colorimetric method.

[0091] 1. Reagents and materials

[0092] Tyrosinase (25kU); Levodopa, ≥98%; Alpha-arbutin, ≥99%

[0093] 2. Reagent preparation

[0094] PBS (pH 6.8): 0.05 mol / L PBS preparation:

[0095] Solution A: 0.05 mol / L Na2HPO4 solution: Weigh 7.099 g of disodium hydrogen phosphate and add distilled water to 1000 mL;

[0096] Solution B: 0.05 mol / L Na2HPO4 solution: Weigh 6.803 g of potassium dihydrogen phosphate and add distilled water to 1000 mL;

[0097] Simply mix 50ml of solution A and 50ml of solution B.

[0098] Tyrosinase solution: Prepared with pH 6.8 PBS buffer, 100 U / mL, prepare immediately before use;

[0099] Dopamine solution: Weigh 0.04 g of dopamine and dissolve it in 40 mL of pH 6.8 PBS buffer. Store in the dark.

[0100] α-Arbutin: Dilute sequentially with pH 6.8 PBS buffer to a 100 μM solution.

[0101] Samples: Pretreated emulsion mixtures of Examples 1-10 and Comparative Examples 1-5.

[0102] 3. Measurement steps:

[0103] Table 6

[0104]

[0105] Pretreated emulsion mixtures of Examples 1-10 and Comparative Examples 1-5, 0.05M PBS (pH 6.8), and tyrosinase solution were added sequentially to test tubes; the composition of the reaction solution is shown in Table 6. The mixture was incubated in a water bath at 37°C for 10 min; 2 mL of dopa solution was added, and after reacting for 5 min, the absorbance was measured at 475 nm.

[0106] Tyrosinase inhibition rate (%) = [1 - (ODC - ODD) / (ODA - ODB)] × 100%;

[0107] ODA-enzyme solution absorbance value of control group;

[0108] ODB-enzyme solution absorbance value of the control blank group;

[0109] ODC - Absorbance value of sample group;

[0110] OD D -Absorbance value of blank control in sample group.

[0111] The absolute difference between two independent measurements obtained under repeatability conditions shall not exceed 10% of the arithmetic mean.

[0112] The test results are shown in Table 7.

[0113] Table 7

[0114] Example 1 72.58 Example 2 71.41 Example 3 82.36 Example 4 85.44 Example 5 73.27 Example 6 75.32 Example 7 76.45 Example 8 69.32 Example 9 65.48 Example 10 80.32 Example 11 81.76 Comparative Example 1 4.32 Comparative Example 2 60.37 Comparative Example 3 62.48 Comparative Example 4 1.74 Comparative Example 5 64.32

[0115] The results are shown in Table 7. The emulsion containing the EGCG composition significantly inhibited tyrosinase, thus exhibiting good brightening and whitening effects.

[0116] Test Example 5: Elastase Test

[0117] Experimental Principle: Collagen forms collagen fibers and reticular fibers, while elastin forms elastic fibers. These three types of fibers together constitute the connective tissue of the skin, creating a plump and elastic structure. Elastase has the ability to break down various proteins, including collagen and elastin. Changes in elastin structure are closely related to skin aging. An enzyme-linked immunosorbent assay (ELISA) reader is used to detect the inhibitory effect of the test sample on elastase-catalyzed substrates, determining whether the test sample has the ability to inhibit elastase.

[0118] 1. Reagents and materials

[0119] Elastase (porcine pancreas, 30 U / mg); N-succinyl-alanine-alanine-p-nitroaniline, tris(hydroxymethyl)aminomethane, concentrated hydrochloric acid; EGCG (purchased from Guangzhou Xiyuan Biotechnology Co., Ltd.); Instruments and equipment: analytical balance (accurate to 0.001 g), ultrasonic cleaner, pipette, pipette, colorimetric tube, volumetric flasks (10 mL, 100 mL).

[0120] 2. Solution preparation:

[0121] Preparation of 0.2 mol / L Tris-HCl buffer solution at pH 8.0:

[0122] Solution A: Accurately weigh 4.8456 g of Tris particles, add 100 mL of deionized water, stir and mix well to dissolve to obtain a 0.4 mol / L Tris solution;

[0123] Solution B: Dilute 3.34 mL of concentrated hydrochloric acid with 96.66 mL of deionized water to obtain a 0.4 mol / L HCl solution;

[0124] Mix 100 mL of solution A and 44.76 mL of solution B, adjust the pH to 8.0, and add deionized water to bring the volume to 200 mL.

[0125] Elastase solution: Prepared with pH 8.0 Tris-HCl buffer. Take 0.033g of elastase and add it to 10mL of pH 8.0 Tris-HCl buffer to prepare a 100U / mL elastase solution. Prepare immediately before use.

[0126] Substrate solution: Weigh 1.8057 mg N-succinyl-alanine-alanine-alanine-p-nitroaniline and dissolve it in 10 mL pH 8.0 Tris-HCl buffer.

[0127] Positive control EGCG group: Weigh 0.001g EGCG powder, dissolve it in 1mL pH8.0 Tris-HCl buffer to prepare a 1.0mg / mL solution, and then dilute it with buffer to prepare solutions of 0.5, 0.1, 0.01, 0.005, 0.003, 0.002, and 0.001mg / mL.

[0128] Samples: Pretreated emulsion mixtures of Examples 1-10 and Comparative Examples 1-5.

[0129] 2. Test solution preparation:

[0130] Table 8

[0131] blank / 50 100 50 Blank control / 50 / 150 sample 50 50 100 / Sample control 50 50 / 100

[0132] The enzyme solution, the pretreated emulsion mixture of Examples 1-10 and Comparative Examples 1-5 were sequentially placed in a 96-well plate. The composition of the reaction solution is shown in Table 8. The plate was incubated at room temperature for 60 min, and the absorbance was detected at 410 nm using a microplate reader. The data were recorded and saved.

[0133] 3. Formula for calculating elastase inhibition rate (%):

[0134] elastase inhibition rate (%) = [1-(OD)] A -OD B ) / (OD C -OD D )]×100;

[0135] OD A - Absorbance values ​​of the sample group (containing enzyme and substrate);

[0136] OD B - Absorbance values ​​of the sample control group (containing enzyme but not substrate);

[0137] OD C -Absorbance values ​​of the blank control group (containing enzyme and substrate but no sample);

[0138] OD D - Absorbance value of blank control group (containing enzyme but no substrate and no sample).

[0139] The absolute difference between two independent measurements obtained under repeatability conditions shall not exceed 10% of the arithmetic mean.

[0140] The test results are shown in Table 9:

[0141] Table 9

[0142] Example 1 22.58±0.35 Example 2 20.44±0.67 Example 3 47.67±1.78 Example 4 48.32±2.66 Example 5 26.24±0.92 Example 6 28.32±0.78 Example 7 32.54±1.57 Example 8 19.34±1.48 Example 9 18.47±2.41 Example 10 44.27±0.78 Example 11 46.32±0.64 Comparative Example 1 4.53±2.76 Comparative Example 2 5.44±0.35 Comparative Example 3 6.58±1.72 Comparative Example 4 0.87±2.34 Comparative Example 5 1412±1.58

[0143] The results are shown in Table 9. The emulsion containing the EGCG composition showed significant inhibition of elastase, which means it has a good anti-wrinkle effect.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A cosmetic product, characterized in that, It is composed of the following components in weight percentages: EGCG composition 1-15%, carbomer 0.1-0.3%, acrylates / C10-30 alkanol acrylate crosspolymer 0.01-0.1%, cetearyl alcohol / cetearyl glucoside 0.1-1%, glyceryl stearate / PEG-100 stearate 0.5-1.5%, polydimethylsiloxane 1-2%, glycerol 1-10%, polymethyl methacrylate 0.5-2%, polyacrylamide / C13-14 isoparaffin / laurate polyether-7 0.1-0.5%, p-hydroxyacetophenone 0.1-0.5%, aminomethylpropanol 0.1-0.3%, phenoxyethanol 0.1-0.8%, 1,2-hexanediol 0.1-1%, balance water; the EGCG composition consists of the following components in parts by weight: 0.02-0.2 parts EGCG, 0.5-4 parts matsutake mushroom extract, and 1-8 parts yeast fermentation product filtrate.

2. The cosmetic product as described in claim 1, characterized in that, The mass ratio of EGCG, matsutake mushroom extract, and yeast fermentation product filtrate is EGCG: matsutake mushroom extract: yeast fermentation product filtrate = (0.05-0.2):(0.5-4)(3-6.5).

3. The cosmetic product as described in claim 1, characterized in that, The cosmetic product is composed of the following components in weight percentages: The EGCG composition comprises 7.1% carbomer, 0.2% acrylate / C10-30 alkanol acrylate crosspolymer, 0.05% cetearyl alcohol / cetearyl glucoside, 0.4% glyceryl stearate / PEG-100 stearate, 1.5% polydimethylsiloxane, 5% glycerol, 1% polymethyl methacrylate, 0.22% polyacrylamide / C13-14 isoparaffin / lauryl ether-7, 0.25% p-hydroxyacetophenone, 0.15% aminomethylpropanol, 0.4% phenoxyethanol, 0.5% 1,2-hexanediol, and the balance being water.

4. A method for preparing a cosmetic according to any one of claims 1-3, characterized in that, The specific preparation method is as follows: (1) Mix polymethyl methacrylate and glycerin evenly to obtain material A; heat p-hydroxyacetophenone and glycerin to 45-55℃ to dissolve to obtain material B; disperse EGCG, matsutake mushroom extract and yeast fermentation product filtrate evenly to obtain material C; (2) Stir and homogenize water, carbomer, and acrylate / C10-30 alkanol acrylate crosslinking polymer, then heat to 80-85℃ and keep warm to obtain material D; (3) Cetearyl alcohol / cetearyl glucoside, glyceryl stearate / PEG-100 stearate and polydimethylsiloxane are stirred and homogenized at 80-85℃ to obtain material E; (4) Pour material D into material E, continue to add material A at 80-85℃ and homogenize, add polyacrylamide / C13-14 isoparaffin / lauryl alcohol polyether-7 and homogenize; (5) Cool down to 50-55℃, add the B material and stir evenly, then add aminomethylpropanol and stir evenly; cool down to 40-45℃, add the C material, phenoxyethanol and 1,2-hexanediol, stir evenly, filter and discharge to obtain the cosmetic.

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