Acne-removing and moisturizing silver-based mask and preparation method thereof

Abstract

The invention discloses an acne-removing and moisturizing silver-based mask and a preparation method thereof, and belongs to the technical field of cosmetics. The silver-based mask comprises mask liquid and silver-based mask cloth, wherein the mask liquid is prepared from the following components in percentage by weight: 0.2 to 1.2 percent of plant extract, 1.5 to 2.4 percent of plant yeast, 2 to 5 percent of humectant, 0.2 to 0.6 percent of allantoin, 0.5 to 0.9 percent of hydrolyzed collagen, 0.6 to 1.2 percent of arginine, 0.2 to 0.5 percent of hydroxyethyl cellulose and the balance of water. According to the acne-removing mask, the components cooperate with one another and jointly act on the skin, and the prepared mask product can achieve the acne-removing effect, improve the overall condition of the skin, reduce acne traces, improve the glossiness of the skin and make the skin uniform.

Description

Technical Field

[0001] The invention belongs to the technical field of cosmetics, and in particular relates to an acne-removing and moisturizing silver-based facial mask and a preparation method thereof. Background Art

[0002] Acne masks are masks designed specifically for oily, acne-prone or acne-prone skin. They often contain specific ingredients that can help reduce the formation of acne, reduce the inflammation of acne, and improve the skin condition after acne. While acne masks have their advantages in controlling oil, reducing acne and inflammation, they also have some potential disadvantages in their formulation that may affect their effectiveness or cause adverse effects for some users. Here are some of the main disadvantages:

[0003] (1) Excessive drying: Many acne masks contain strong oil-absorbing ingredients, such as clay, activated charcoal or high concentrations of salicylic acid. Although these ingredients can effectively remove oil from the skin's surface, they may also cause excessive drying of the skin, thereby damaging the skin's natural barrier and causing skin sensitivity and inflammation.

[0004] (2) Irritating ingredients: In order to achieve the effect of quickly removing acne, some facial masks may contain high concentrations of active ingredients, such as salicylic acid, phenoxyethanol, etc. These ingredients may irritate sensitive skin and cause erythema, stinging or peeling.

[0005] (3) Over-reliance on chemical ingredients: Acne masks that rely too much on chemical ingredients may neglect basic skin care such as cleansing, moisturizing and sun protection, which may lead to the recurrence of skin problems.

[0006] To solve the above problems in acne mask, the following methods are mainly adopted:

[0007] (1) Controlling concentration: Even irritating ingredients, such as salicylic acid, can exert their effects within a safe range by controlling their concentration in the formula. For example, the concentration of salicylic acid should generally not exceed 0.4% to 2% to avoid damage to the skin.

[0008] (2) Compatibility balance: Irritating ingredients can be used in combination with other soothing ingredients, such as chamomile extract, allantoin, panthenol, etc., to neutralize potential irritation and provide additional soothing and protective effects.

[0009] (3) Choose mild and safe alternatives: For known irritating ingredients and drug ingredients, you can look for milder alternatives, such as plant extracts and plant ferments.

[0010] (4) Optimize pH value: Adjusting the pH value of the mask to make it close to the natural pH value of the skin (about 5.5) can reduce the negative effects of irritating ingredients on the skin.

[0011] However, when using plant extracts or fermented products, poor stability may easily occur, resulting in reduced effectiveness of the acne mask. Therefore, there is an urgent need for a safe, non-irritating and highly stable acne mask. Summary of the invention

[0012] The purpose of the present invention is to provide a silver-based facial mask for removing acne and moisturizing and a preparation method thereof, so as to solve the problem of poor stability of the above-mentioned acne facial mask using plant extracts and fermented products. In the present invention, the plant extracts and plant fermented products work together to act on the skin, and the prepared facial mask product can have an acne removal effect, improve the overall condition of the skin, reduce acne marks, enhance the glossiness of the skin and even out the skin color, and due to the synergistic effect between the plant extracts and the plant fermented products, the stability of the facial mask product is greatly improved.

[0013] To achieve the above-mentioned object, the first aspect of the present invention provides a silver-based facial mask for removing acne and moisturizing, comprising a facial mask liquid and a silver-based mask cloth, wherein the facial mask liquid comprises the following components in weight percentages: 0.2-1.2% of plant extract, 1.5-2.4% of plant fermentation product, 2-5% of moisturizer, 0.2-0.6% of allantoin, 0.5-0.9% of hydrolyzed collagen, 0.6-1.2% of arginine, 0.2-0.5% of hydroxyethyl cellulose and the balance of water;

[0014] Furthermore, the preparation method of the plant extract comprises the following steps:

[0015] (1) Mixing purslane (PORTULACA OLERACEA), ammopiptanthus moNGOLICUS and atractylodes (ATRACTYLODES CHINENSIS), and crushing to less than 200 meshes to obtain a mixture;

[0016] (2) mixing a mixture in a weight ratio of 1:(12-15) with water to obtain an enzymatic hydrolysis raw material; adding pectinase to the enzymatic hydrolysis raw material, performing enzymatic hydrolysis at 35-38° C. for 5-7 hours, inactivating the enzyme, continuously adding bromelain, performing enzymatic hydrolysis at 35-38° C. for 4-6 hours, inactivating the enzyme, and finally adding β-glucanase, performing enzymatic hydrolysis at 35-38° C. for 7-9 hours, inactivating the enzyme, and obtaining an enzymatic hydrolysis product;

[0017] (3) placing the enzymatic hydrolysis product into a microwave reactor at a microwave power of 200-230 W, a temperature of 40-45° C., and a time of 2-3 h to obtain an extract;

[0018] (4) The extract was filtered using a 0.22 μm filter membrane, and the filtrate was evaporated under reduced pressure and dried to obtain a plant extract.

[0019] Furthermore, the weight ratio of Portulaca oleracea, Ammopiptanthus mongolicus and Atractylodes lancea is 1:(1.2-1.4):(0.5-0.8).

[0020] Furthermore, the dosage of pectinase in the enzymolysis raw material is 100U / mL-120U / mL; the dosage of bromelain in the enzymolysis raw material is 70U / mL-90U / mL; and the dosage of β-glucanase in the enzymolysis raw material is 80U / mL-100U / mL.

[0021] In order to improve the safety of facial mask products on the market, plant extracts are usually used to replace irritating raw materials, but the acne removal effect is not ideal. The present invention uses a specific enzyme to enzymolyze purslane, Ammopiptanthus mongolicus and Atractylodes lancea through a large number of experiments and according to the characteristics of the raw materials and the actual experimental results. The active ingredients in the obtained plant extracts have a synergistic effect, and when they act on the skin, the acne removal effect of the mask is enhanced.

[0022] Furthermore, the method for preparing the plant fermentation product comprises the following steps:

[0023] (1) Mixing witch hazel (HAMAMELIS VIRGINIANA), larch (LARIX EUROPAEA) and Centella asiatica, and crushing them to less than 200 meshes to obtain a fermentation raw material;

[0024] (2) Mixing fermentation raw materials and water in a weight ratio of 1: (10-15) to obtain a fermentation liquid; adding Lactobacillus bulgaricus to the fermentation liquid for anaerobic fermentation at a fermentation temperature of 35-38° C. for a fermentation time of 5-8 h, sterilizing, continuing to add Lactobacillus brevis for anaerobic fermentation at a fermentation temperature of 35-38° C. for a fermentation time of 13-16 h, sterilizing, and finally adding Lactobacillus helveticus for anaerobic fermentation at a fermentation temperature of 35-38° C. for a fermentation time of 15-17 h, sterilizing after the fermentation is completed, and obtaining a fermentation product;

[0025] (3) The fermentation product was filtered using a 0.22 μm filter membrane, and the filtrate was evaporated under reduced pressure and dried to obtain a plant fermentation product.

[0026] Furthermore, the amount of Lactobacillus bulgaricus in the fermentation liquid is 10 8 -10 9 CFU / mL fermentation liquid; the amount of Lactobacillus brevis in the fermentation liquid is 10 9 -10 10 CFU / mL fermentation liquid; the amount of Lactobacillus helveticus in the fermentation liquid is 10 7 -10 8 CFU / mL fermentation liquid.

[0027] Furthermore, the weight ratio of witch hazel, larch wood and Centella asiatica is 1:(0.2-0.4):(1.3-1.5).

[0028] In order to further improve the moisturizing effect, the present invention adds plant fermentation to the system, using a gradient fermentation method. Each strain has different metabolic pathways and enzyme systems, which can achieve the metabolism and transformation of different components in the plant extract. The fermentation process at different stages works synergistically without fermentation competition, which improves the stability and effectiveness of the mask product and has a good improvement on the moisturizing effect of the mask. It was also unexpectedly found that plant fermentation can synergistically promote the acne-removing effect of plant extracts, and the composite effect of the two is significantly better than the addition effect of other plant fermentation products.

[0029] The fermentation process of plants usually involves mixing all the raw materials and then fermenting them uniformly to obtain a fermentation liquid. However, during the research and development process, it was found that different raw materials would affect the temperature and time of the fermentation system during the fermentation process, and competition would also occur during the fermentation process, resulting in poor fermentation results. The present invention has found through a large number of experiments that three plant fermentation raw materials can be fermented simultaneously, and the components in different raw materials can complement each other, promote the growth and metabolism of microorganisms, and improve fermentation efficiency. At the same time, mixed fermentation of different raw materials can produce more complex and richer metabolites, thereby increasing the acne removal and moisturizing effects of the mask. The present invention uses plant fermentation products and plant extracts at the same time to form a more stable system, especially the product stability under cold-resistant, low-temperature and high-temperature environments, which can avoid the active ingredients in the system from easily seeping out and precipitating. The inventor found in research and development that only when the components of this system meet the specific ratio can the stability requirements under multiple conditions be met at the same time.

[0030] Furthermore, the moisturizing agent includes one or more of butylene glycol, glycerin, trehalose, panthenol, and sodium hyaluronate.

[0031] Furthermore, the moisturizing agent includes the following components in parts by weight: 10 parts of butylene glycol, 1-3 parts of glycerol, 4-6 parts of trehalose, 5-8 parts of panthenol, and 12-15 parts of sodium hyaluronate.

[0032] Furthermore, the facial mask liquid comprises the following components in weight percentage: 0.8% of plant extract, 1.9% of plant fermentation product, 3.6% of moisturizer, 0.4% of allantoin, 0.7% of hydrolyzed collagen, 1.1% of arginine, 0.4% of hydroxyethyl cellulose and the balance of water.

[0033] The second aspect of the present invention provides a method for preparing an acne-removing and moisturizing silver-based facial mask, comprising the following steps:

[0034] (1) mixing the components of the facial mask liquid according to proportion to obtain the facial mask liquid;

[0035] (2) Pour 20-30 mL of the mask liquid into an aluminum foil bag containing a silver-based non-woven fabric film material, sterilize, and seal the bag to obtain a silver-based mask that can repair the skin barrier in multiple ways.

[0036] Therefore, the present invention adopts the above-mentioned silver-based facial mask for removing acne and moisturizing and its preparation method, which has the following beneficial effects:

[0037] 1. In the present invention, purslane, Ammopiptanthus mongolicus and Atractylodes lancea are enzymolyzed using specific enzymes, and the active ingredients in the obtained plant extracts have a synergistic effect. When the active ingredients act on the skin, the acne-removing effect of the mask is enhanced.

[0038] 2. The present invention adds plant fermentation products to the system and uses a gradient fermentation method to improve the moisturizing effect of the mask. It is also unexpectedly found that plant fermentation products can synergistically promote the acne-removing effect of plant extracts, and the combined effect of the two is significantly better than the addition effect of other plant fermentation products.

[0039] 3. The present invention uses plant fermentation products and plant extracts at the same time to form a more stable system, especially the product stability in cold-resistant, low-temperature and high-temperature environments, which can prevent the active ingredients in the system from easily seeping out and precipitating.

[0040] The technical solution of the present invention is further described in detail below through embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a comparison chart of the effects of subject No. 5 after using the facial mask of Example 1 for 21 days;

[0042] Figure 2 This is a comparison chart of the effects of test subject No. 6 after using the facial mask of Example 1 for 21 days. DETAILED DESCRIPTION

[0043] The present invention will be further described below. It should be noted that this embodiment is based on the technical solution and provides a detailed implementation method and a specific operation process, but the present invention is not limited to this embodiment.

[0044] The silver-based membrane cloth was purchased from Henan Fengzhihuang Industrial Co., Ltd. The specific preparation method of the silver-based membrane cloth can be found in a method for treating a fabric surface with silver / silver phosphate disclosed in Chinese patent CN114045675B.

[0045] Lactobacillus bulgaricus, number: CCTCC CB 20082295; purchased from China Center for Type Culture.

[0046] Lactobacillus brevis, number: SHBCC D14346, was purchased from Shanghai Microbiology Center.

[0047] Lactobacillus helveticus, number: CCTCCAB 2010205, was purchased from China Center for Type Culture.

[0048] Lactobacillus plantarum, number: CCTCCAB 2010210. It was purchased from China Center for Type Culture.

[0049] Lactobacillus casei, number: SHBCC D24737, was purchased from Shanghai Microbiology Center.

[0050] Lactobacillus acidophilus, number: CCTCCAB 2010208. Purchased from China Center for Type Culture.

[0051] The enzyme used in the present invention was purchased from Shanghai Yuanye Biotechnology Co., Ltd.

[0052] Example 1

[0053] The present embodiment provides a silver-based facial mask for removing acne and moisturizing, comprising a facial mask liquid and a silver-based mask cloth, wherein the facial mask liquid comprises the following components in weight percentages: 0.8% plant extract, 1.9% plant fermentation product, 3.6% moisturizer, 0.4% allantoin, 0.7% hydrolyzed collagen, 1.1% arginine, 0.4% hydroxyethyl cellulose and the remainder water.

[0054] The preparation method of the plant extract comprises the following steps:

[0055] (1) mixing purslane, Ammopiptanthus mongolicus and Atractylodes lancea in a weight ratio of 1:1.3:0.6, and crushing to less than 200 meshes to obtain a mixture;

[0056] (2) mixing the mixture with water in a weight ratio of 1:13 to obtain an enzymatic hydrolysis raw material; adding pectinase to the enzymatic hydrolysis raw material, enzymatic hydrolysis at 36° C. for 6 hours, inactivating the enzyme, continuously adding bromelain, enzymatic hydrolysis at 36° C. for 5 hours, inactivating the enzyme, and finally adding β-glucanase, enzymatic hydrolysis at 36° C. for 8 hours, inactivating the enzyme, and obtaining an enzymatic hydrolysis product;

[0057] (3) placing the enzymatic hydrolysis product in a microwave reactor at a microwave power of 220 W, a temperature of 42° C., and a time of 2.5 h to obtain an extract;

[0058] (4) The extract was filtered using a 0.22 μm filter membrane, and the filtrate was evaporated under reduced pressure and dried to obtain a plant extract.

[0059] The dosage of pectinase in the enzymatic hydrolysis raw material is 110 U / mL; the dosage of bromelain in the enzymatic hydrolysis raw material is 80 U / mL; and the dosage of β-glucanase in the enzymatic hydrolysis raw material is 90 U / mL.

[0060] The method for preparing plant fermentation products comprises the following steps:

[0061] (1) Mixing witch hazel, larch wood and Centella asiatica in a weight ratio of 1:0.3:1.4, and crushing the mixture to less than 200 meshes to obtain a fermentation raw material;

[0062] (2) Mixing fermentation raw materials and water in a weight ratio of 1:12 to obtain a fermentation liquid; adding Lactobacillus bulgaricus to the fermentation liquid for anaerobic fermentation at a fermentation temperature of 36° C. for a fermentation time of 7 h, sterilizing, continuing to add Lactobacillus brevis for anaerobic fermentation at a fermentation temperature of 36° C. for a fermentation time of 14 h, sterilizing, and finally adding Lactobacillus helveticus for anaerobic fermentation at a fermentation temperature of 36° C. for a fermentation time of 16 h, sterilizing after the fermentation is completed, and obtaining a fermentation product;

[0063] (3) The fermentation product was filtered using a 0.22 μm filter membrane, and the filtrate was evaporated under reduced pressure and dried to obtain a plant fermentation product.

[0064] The amount of Lactobacillus bulgaricus used in the fermentation liquid is 10 8 CFU / mL fermentation liquid; the amount of Lactobacillus brevis in the fermentation liquid is 10 10 CFU / mL fermentation liquid; the amount of Lactobacillus helveticus in the fermentation liquid is 10 8 CFU / mL fermentation liquid.

[0065] The moisturizing agent includes the following components in parts by weight: 10 parts of butylene glycol, 2 parts of glycerin, 5 parts of trehalose, 7 parts of panthenol, and 13 parts of sodium hyaluronate.

[0066] The method for preparing the acne-removing and moisturizing silver-based facial mask comprises the following steps:

[0067] (1) mixing the components of the facial mask liquid according to proportion to obtain the facial mask liquid;

[0068] (2) Pour 25 mL of the mask liquid into an aluminum foil bag containing a silver-based non-woven fabric film material, sterilize, and seal the bag to obtain a silver-based mask for multiple skin barrier repair.

[0069] Example 2

[0070] The present embodiment provides a silver-based facial mask for removing acne and moisturizing, comprising a facial mask liquid and a silver-based mask cloth, wherein the facial mask liquid comprises the following components in percentage by weight: 1.2% of plant extract, 1.5% of plant fermentation product, 3% of moisturizer, 0.6% of allantoin, 0.5% of hydrolyzed collagen, 1.2% of arginine, 0.2% of hydroxyethyl cellulose and the balance of water;

[0071] The preparation method of the plant extract comprises the following steps:

[0072] (1) mixing purslane, Ammopiptanthus mongolicus and Atractylodes lancea in a weight ratio of 1:1.2:0.5, and crushing to less than 200 meshes to obtain a mixture;

[0073] (2) mixing the mixture with water in a weight ratio of 1:12 to obtain an enzymatic hydrolysis raw material; adding pectinase to the enzymatic hydrolysis raw material, enzymatic hydrolysis at 38° C. for 5 hours, inactivating the enzyme, continuously adding bromelain, enzymatic hydrolysis at 38° C. for 4 hours, inactivating the enzyme, and finally adding β-glucanase, enzymatic hydrolysis at 38° C. for 7 hours, inactivating the enzyme, and obtaining an enzymatic hydrolysis product;

[0074] (3) placing the enzymatic hydrolysis product into a microwave reactor at a microwave power of 200 W, a temperature of 45° C., and a time of 3 h to obtain an extract;

[0075] (4) The extract was filtered using a 0.22 μm filter membrane, and the filtrate was evaporated under reduced pressure and dried to obtain a plant extract.

[0076] The dosage of pectinase in the enzymatic hydrolysis raw material is 120 U / mL; the dosage of bromelain in the enzymatic hydrolysis raw material is 70 U / mL; and the dosage of β-glucanase in the enzymatic hydrolysis raw material is 100 U / mL.

[0077] The method for preparing plant fermentation products comprises the following steps:

[0078] (1) Mixing witch hazel, larch wood and Centella asiatica in a weight ratio of 1:0.4:1.5, and crushing the mixture to less than 200 meshes to obtain a fermentation raw material;

[0079] (2) mixing fermentation raw materials and water in a weight ratio of 1:15 to obtain a fermentation liquid; adding Lactobacillus bulgaricus to the fermentation liquid, performing anaerobic fermentation at a fermentation temperature of 35° C. and a fermentation time of 8 h, sterilizing, continuing to add Lactobacillus brevis, performing anaerobic fermentation at a fermentation temperature of 35° C. and a fermentation time of 16 h, sterilizing, and finally adding Lactobacillus helveticus, performing anaerobic fermentation at a fermentation temperature of 35° C. and a fermentation time of 17 h, sterilizing after the fermentation is completed, and obtaining a fermentation product;

[0080] (3) The fermentation product was filtered using a 0.22 μm filter membrane, and the filtrate was evaporated under reduced pressure and dried to obtain a plant fermentation product.

[0081] The amount of Lactobacillus bulgaricus used in the fermentation liquid is 10 8 CFU / mL fermentation liquid; the amount of Lactobacillus brevis in the fermentation liquid is 10 9 CFU / mL fermentation liquid; the amount of Lactobacillus helveticus in the fermentation liquid is 10 7 CFU / mL fermentation liquid.

[0082] The moisturizing agent includes the following components in parts by weight: 10 parts of butylene glycol, 3 parts of glycerin, 4 parts of trehalose, 8 parts of panthenol, and 12 parts of sodium hyaluronate.

[0083] The method for preparing the acne-removing and moisturizing silver-based facial mask comprises the following steps:

[0084] (1) mixing the components of the facial mask liquid according to proportion to obtain the facial mask liquid;

[0085] (2) Pour 25 mL of the mask liquid into an aluminum foil bag containing a silver-based non-woven fabric film material, sterilize, and seal the bag to obtain a silver-based mask for multiple skin barrier repair.

[0086] Comparative Example 1

[0087] The difference between this comparative example and Example 1 is that the facial mask liquid includes the following components in weight percentage: 1.9% plant extract, 0.8% plant fermentation product, 2.6% moisturizer, 0.9% allantoin, 1.2% hydrolyzed collagen, 0.8% arginine, 0.7% hydroxyethyl cellulose and the balance water.

[0088] Comparative Example 2

[0089] The difference between this comparative example and Example 1 is that purslane, Ammopiptanthus mongolicus and Atractylodes lancea in a weight ratio of 1:1:1 are mixed and crushed to less than 200 meshes to obtain a mixture.

[0090] Comparative Example 3

[0091] The difference between this comparative example and Example 1 is that pectinase is replaced by neutral protease, bromelain is replaced by cellulase, and β-glucanase is replaced by ficin.

[0092] Comparative Example 4

[0093] The difference between this comparative example and Example 1 is that witch hazel, larch wood and Centella asiatica in a weight ratio of 1:1:1 are mixed and crushed to less than 200 meshes to obtain a fermentation raw material.

[0094] Comparative Example 5

[0095] The difference between this comparative example and Example 1 is that the gradient fermentation is replaced by compound bacteria fermentation, specifically:

[0096] The fermentation raw materials and water are mixed in a weight ratio of 1:12 to obtain a fermentation liquid; composite bacteria are added to the fermentation liquid, wherein the composite bacteria include Lactobacillus bulgaricus, Lactobacillus brevis and Lactobacillus helveticus; the fermentation temperature is 36° C., the fermentation time is 37 hours, and the fermentation is sterilized after completion to obtain a fermentation product.

[0097] The amount of Lactobacillus bulgaricus used in the fermentation liquid is 10 8 CFU / mL fermentation liquid; the amount of Lactobacillus brevis in the fermentation liquid is 10 10 CFU / mL fermentation liquid; the amount of Lactobacillus helveticus in the fermentation liquid is 10 8 CFU / mL fermentation liquid.

[0098] Comparative Example 6

[0099] The difference between this comparative example and Example 1 is that: North American witch hazel, European larch wood and Centella asiatica in a weight ratio of 1:0.3:1.4 are mixed and crushed to less than 200 meshes to obtain a fermentation raw material; replaced by: Spiraea ulmarica (SPIRAEAULMARIA) flowers, white willow (SALIXALBA) bark and Houttuynia cordata (HOUTTUYNIA CORDATA) in a weight ratio of 1:0.3:1.4 are mixed and crushed to less than 200 meshes to obtain a fermentation raw material.

[0100] Performance Testing

[0101] Testing process: The following volunteer selection criteria are: sensitive skin and acne on the face.

[0102] 1. Human skin patch test

[0103] Test population: Volunteers aged between 20 and 50 were selected and randomly divided into 8 groups, with 20 people in each group;

[0104] Test method: First clean the skin of the test area with physiological saline and wait for 5 minutes to dry; select a qualified patch tester, use a closed patch test method, take 0.5mL of mask liquid in the patch tester, apply it to the back of the subject with special tape, and ask the subject how it feels; bathing is prohibited during the test; the subject keeps the patch area dry within 48 hours, avoids intense exercise, scratching the patch area, and long-term sunlight exposure, etc. After 48 hours, remove the tester and mark it. After 30 minutes, wait for the indentation to disappear and make a judgment under sufficient light. Record the results according to the skin reaction grade standard in the "Hygiene Standards for Skin Care Products". The skin adverse reaction grade standard is shown in Table 1 below. If there is any discomfort during the process, stop the test immediately. The results are shown in Table 2.

[0105] Table 1 Grading of skin adverse reactions

[0106]

[0107] Table 2 Human skin patch test results

[0108]

[0109] It can be seen from Table 2 that the facial mask liquid prepared by the present invention is mild and non-irritating.

[0110] 2. 32 subjects were selected, including 28 females and 4 males, aged 19 to 41 years old, and randomly divided into 8 groups. The subjects were not allowed to use any products on the day of the facial test. Before the test, the subjects needed to clean their faces uniformly, dry them with a dandruff-free facial towel, and sit quietly in the human efficacy evaluation room (temperature: 20℃~22℃, humidity: 40%~60%) for 30 minutes. During this period, they were not allowed to drink water or beverages. The subjects remained relaxed, with their faces exposed and avoided touching.

[0111] Unified method of using the mask: After cleansing, take out a piece of mask and apply it on the subject's face, remove it after 15 minutes, and gently massage until the mask liquid is absorbed. Use one piece each time, once every two days, at night, for three consecutive weeks (21 days). During the trial, the subjects are prohibited from using acne-removing, anti-inflammatory and antibacterial preparations, and the subjects are prohibited from taking preparations that affect acne-removing tests by drip, injection, oral administration or other forms. The subjects should avoid long-term exposure to outdoor light.

[0112] (1) Subjective evaluation

[0113] During the follow-up visit 21 days after using the product (D21), the subjects evaluated their facial condition through a mirror under natural light conditions in the human efficacy laboratory and recorded the score. The seven-level scoring method was used to score the product in terms of the three aspects of product effect, mildness, and satisfaction, and then make a judgment. The score was recorded once during each follow-up visit. The evaluation criteria and test results are shown in Table 3-7.

[0114] Table 3 Self-assessment scoring standards (7-level scoring method)

[0115]

[0116] Table 4 Mask mildness test results

[0117]

[0118]

[0119] Table 5 Mask satisfaction test results

[0120] Total score after using D21 / points Example 1 219 Example 2 210 Comparative Example 1 172 Comparative Example 2 189 Comparative Example 3 194 Comparative Example 4 181 Comparative Example 5 176 Comparative Example 6 165

[0121] Table 6 Evaluation criteria for acne removal effect

[0122]

[0123]

[0124] Table 7 Test results of facial mask anti-acne effect

[0125]

[0126]

[0127] It can be seen from the above performance test results that the facial masks prepared in Examples 1-2 have good acne-removing and moisturizing effects, are mild and non-irritating, and have high user satisfaction. In particular, the comprehensive performance of Example 1 is the most outstanding, and it has a soothing effect on the redness and swelling of acne and blackhead areas, a reducing effect on the redness of acne scar areas, a reduction in the acne rate, a reduction in the number of acne and blackheads, a reduction in the volume of acne, and smoothing the skin in acne and blackhead areas. It not only has an acne-removing effect, but also has the effect of moisturizing and maintaining the skin in a good state. This is mainly because the embodiments use non-irritating and highly safe plant extracts and plant fermentations as effective ingredients, and are combined with other mask ingredients to form a mask raw material composition. The two have a synergistic effect and the acne-removing effect is obvious.

[0128] The above experimental results further prove the importance of the technical solution defined in the present invention to its technical effect.

[0129] 2. Semi-quantitative evaluation

[0130] When the dermatologists visited the subjects before using the product (D0) and 21 days after using the product (D21), they classified and counted the acne lesions (acne, papules, pustules) on the subjects' faces in the photos and evaluated their facial acne lesions. The ISGA scale (Table 8) was used to score the improvement of the lesion symptoms before and after use of the subjects, and the percentage of lesion reduction was calculated.

[0131] The percentage of skin lesion reduction = (ISGA score before using the product - ISGA score after using the product) / ISGA score before using the product × 100%.

[0132] Table 8 ISGA scale

[0133]

[0134]

[0135] Before using the mask, the mean ISGA score of the 32 subjects was 1.84, the mean number of comedones was 2.72, the mean number of papules was 2.91, and the mean number of pustules was 1.31. After using the mask, the above parameters were tested again, and the change rates of the numbers of comedones, papules, and pustules were calculated.

[0136] The change rate of the number of acne = (the number of acne after using the product - the number of acne before using the product) / the number of acne before using the product × 100%.

[0137] Change rate of the number of papules = (number of papules after using the product - number of papules before using the product) / number of papules before using the product × 100%.

[0138] Change rate of the number of pustules = (number of pustules after using the product - number of pustules before using the product) / number of pustules before using the product × 100%.

[0139] Table 9 Skin lesion symptom improvement test results

[0140]

[0141] It can be seen from Table 9 that the numbers of acne, papules and pustules in Examples 1 to 2 are significantly reduced, while the effects of Comparative Examples 1 to 6 are worse than those of Examples 1 to 2, indicating that the facial mask of the present invention can achieve a good acne removal effect.

[0142] The silver-based facial mask prepared by the present invention can reduce the ISGA score, reduce the number of facial acne and papules, improve the overall facial acne lesions, and in the subjective evaluation, the subjects gave a better evaluation of the product's acne removal effect, mildness and satisfaction. The effect of the mask used by two subjects is shown in Figure 1 and Figure 2 ,from Figure 1 and Figure 2 It can be seen that the product of the present invention has acne-removing effect.

[0143] 4. This test refers to the standard T / CAB 0152-2022 "Test Methods for Seven Efficacy of Cosmetics: Anti-wrinkle, Firming, Moisturizing, Oil Control, Repairing, Nourishing, and Soothing". After the subjects use the sample once for 2 hours, the transepidermal water loss value of the skin is tested.

[0144] 32 subjects were selected, including 20 females and 12 males, aged 18 to 40 years old, and randomly divided into 8 groups. The subjects were not allowed to use any products on the day of the facial test. Before the test, the subjects needed to clean their faces uniformly, dry them with a dandruff-free facial towel, and sit quietly in the human efficacy evaluation room (temperature: 21±1℃, humidity: 50±10%) for 30 minutes. During this period, they were not allowed to drink water or beverages. The subjects remained relaxed, with their faces exposed and avoided touching.

[0145] Standard method of using the mask: the subjects cleanse their skin with warm water, apply the mask on their face, and gently adjust it according to their face shape so that the transparent mask cloth fits closely to the facial skin. Leave it on for 20 minutes, remove the mask, no need to wash it off, and gently massage with your fingers until the excess essence is absorbed.

[0146] Transepidermal water loss value change rate: mainly reflects the changes in skin barrier function and evaluates the moisturizing and repairing ability of the product. The HQ-TEWL transepidermal water loss value of the skin is tested using a transepidermal water loss tester. The average value is taken after three tests. The average value is calculated for each group. The lower the measured value, the less transepidermal water loss.

[0147] Transepidermal water loss value change rate = (transepidermal water loss value after using the product - transepidermal water loss value before using the product) / transepidermal water loss value before using the product × 100%.

[0148] The results are shown in Table 10.

[0149] Table 10 Efficacy test results

[0150]

[0151]

[0152] It can be seen from Table 10 that the facial mask prepared in Example 1-2 has a good moisturizing effect on acne-prone skin. It can be seen from Comparative Example 6 that changing the plant composition of the plant fermentation product worsens the moisturizing effect of the facial mask, indicating that the raw material composition of the plant fermentation product can cooperate with the plant extract and other components to achieve a moisturizing effect.

[0153] 5. Stability test

[0154] The facial masks prepared in Examples 1 to 2 and Comparative Examples 1 to 6 were tested for stability at room temperature, cold resistance, low temperature, and high temperature, and the facial masks after the test were placed at room temperature until they recovered to their initial state and then observed. The test results are shown in Table 11.

[0155] Normal temperature test conditions: 25±1℃, constant temperature and dark, 90d;

[0156] Cold resistance test conditions: -20±1℃, constant temperature and dark, 90d;

[0157] Low temperature test conditions: 4±1℃, constant temperature and dark, 90d;

[0158] High temperature test conditions are: 80±1℃, constant temperature and dark environment, 90d.

[0159] Table 11 Mask stability test results

[0160]

[0161]

[0162]

[0163] It can be seen from Table 11 that Examples 1 to 2 can keep the liquid in the mask unchanged regardless of whether it is in a low temperature or high temperature environment. Changing the composition ratio in Comparative Example 1 and changing the raw material type of plant fermentation in Comparative Example 6 will both lead to a decrease in the stability of the mask.

[0164] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A silver-based facial mask for removing acne and moisturizing, characterized in that: The invention comprises a facial mask liquid and a silver-based mask cloth, wherein the facial mask liquid comprises the following components in weight percentage: 0.2-1.2% of plant extract, 1.5-2.4% of plant fermentation product, 2-5% of moisturizer, 0.2-0.6% of allantoin, 0.5-0.9% of hydrolyzed collagen, 0.6-1.2% of arginine, 0.2-0.5% of hydroxyethyl cellulose and the balance of water; The preparation method of the plant extract comprises the following steps: (1) mixing purslane, Ammopiptanthus mongolicus and Atractylodes lancea, and crushing them to obtain a mixture; (2) mixing a mixture in a weight ratio of 1:(12-15) with water to obtain an enzymatic hydrolysis raw material; adding pectinase to the enzymatic hydrolysis raw material, performing enzymatic hydrolysis at 35-38° C. for 5-7 hours, inactivating the enzyme, continuously adding bromelain, performing enzymatic hydrolysis at 35-38° C. for 4-6 hours, inactivating the enzyme, and finally adding β-glucanase, performing enzymatic hydrolysis at 35-38° C. for 7-9 hours, inactivating the enzyme, and obtaining an enzymatic hydrolysis product; (3) placing the enzymatic hydrolysis product into a microwave reactor at a microwave power of 200-230 W, a temperature of 40-45° C., and a time of 2-3 h to obtain an extract; (4) filtering the extract, and subjecting the filtrate to reduced pressure rotary evaporation and drying to obtain the plant extract.

2. The acne-removing and moisturizing silver-based facial mask according to claim 1, characterized in that: The weight ratio of Portulaca oleracea, Ammopiptanthus mongolicus and Atractylodes lancea is 1:(1.2-1.4):(0.5-0.8).

3. The acne-removing and moisturizing silver-based facial mask according to claim 1, characterized in that: The dosage of pectinase in the enzymatic hydrolysis raw material is 100U / mL-120U / mL; the dosage of bromelain in the enzymatic hydrolysis raw material is 70U / mL-90U / mL; the dosage of β-glucanase in the enzymatic hydrolysis raw material is 80U / mL-100U / mL.

4. The acne-removing and moisturizing silver-based facial mask according to claim 1, characterized in that: The method for preparing plant fermentation products comprises the following steps: (1) Mixing witch hazel, larch wood and Centella asiatica, and crushing them to obtain a fermentation raw material; (2) Mixing fermentation raw materials and water in a weight ratio of 1: (10-15) to obtain a fermentation liquid; adding Lactobacillus bulgaricus to the fermentation liquid for anaerobic fermentation at a fermentation temperature of 35-38° C. for a fermentation time of 5-8 h, sterilizing, continuing to add Lactobacillus brevis for anaerobic fermentation at a fermentation temperature of 35-38° C. for a fermentation time of 13-16 h, sterilizing, and finally adding Lactobacillus helveticus for anaerobic fermentation at a fermentation temperature of 35-38° C. for a fermentation time of 15-17 h, sterilizing after the fermentation is completed, and obtaining a fermentation product; (3) filtering the fermentation product, and subjecting the filtrate to reduced pressure rotary evaporation and drying to obtain the plant fermentation product.

5. The acne-removing and moisturizing silver-based facial mask according to claim 4, characterized in that: The amount of Lactobacillus bulgaricus used in the fermentation liquid is 10 8 -10 9 CFU / mL fermentation liquid; the amount of Lactobacillus brevis in the fermentation liquid is 10 9 -10 10 CFU / mL fermentation liquid; the amount of Lactobacillus helveticus in the fermentation liquid is 10 7 -10 8 CFU / mL fermentation liquid.

6. The acne-removing and moisturizing silver-based facial mask according to claim 4, characterized in that: The weight ratio of witch hazel, European larch wood and Centella asiatica is 1:(0.2-0.4):(1.3-1.5).

7. The acne-removing and moisturizing silver-based facial mask according to claim 1, characterized in that: The moisturizer includes one or more of butylene glycol, glycerin, trehalose, panthenol, and sodium hyaluronate.

8. The acne-removing and moisturizing silver-based facial mask according to claim 7, characterized in that: The moisturizing agent comprises the following components in parts by weight: 10 parts of butylene glycol, 1-3 parts of glycerol, 4-6 parts of trehalose, 5-8 parts of panthenol, and 12-15 parts of sodium hyaluronate.

9. The acne-removing and moisturizing silver-based facial mask according to claim 1, characterized in that: The invention comprises a facial mask liquid and a silver-based mask cloth. The facial mask liquid comprises the following components in percentage by weight: 0.8% of plant extract, 1.9% of plant fermentation product, 3.6% of moisturizing agent, 0.4% of allantoin, 0.7% of hydrolyzed collagen, 1.1% of arginine, 0.4% of hydroxyethyl cellulose and the balance of water.

10. A method for preparing the acne-removing and moisturizing silver-based facial mask according to any one of claims 1 to 9, characterized in that: The following steps are involved: (1) mixing the components of the facial mask liquid according to proportion to obtain the facial mask liquid; (2) Pour 20-30 mL of the mask liquid into an aluminum foil bag containing a silver-based non-woven fabric film material, sterilize, and seal the bag to obtain a silver-based mask that can repair the skin barrier in multiple ways.

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