Glacier mud skin-cleaning, soothing and repairing mud mask and preparation method thereof

Abstract

The invention belongs to the technical field of cosmetic preparation, and particularly relates to a glacier mud skin-cleaning, soothing and repairing mud mask and a preparation method thereof. The skin-cleaning, soothing and repairing mud mask disclosed by the invention is prepared from the following components in parts by weight: 30 to 50 parts of pure water, 20 to 30 parts of modified Canada bentonite, 3 to 6 parts of caprylic / capric triglyceride, 2 to 5 parts of glycerol, 0.5 to 2 parts of sodium hyaluronate, 0.5 to 1 part of ceramide, 0.2 to 0.6 part of lavender extract, 0.1 to 0.5 part of glucosamine derivative, 0.01 to 0.1 part of chamomilla recutita flower extract and 0.5 to 1 part of antibacterial agent. The mud mask prepared by the invention has relatively good moisturizing, oil-controlling, soothing and anti-oxidation effects, and the brightness of facial skin can be remarkably improved after the mud mask is used for a period of time. The modified Canada bentonite is improved in hydrophilic formula and compatibility, and helps the modified Canada bentonite to play a better role, so that by using the mask prepared from the glacier mud, the skin can be better naturally cured and cared, the skin is more balanced and stable, external intervention and influence are reduced, and the healthy and natural beauty of the skin is shown.

Description

Technical Field

[0001] The invention belongs to the technical field of cosmetic preparation, and in particular relates to a glacial mud skin cleansing, soothing and repairing mud mask and a preparation method thereof. Background Art

[0002] As modern people pay more and more attention to skin care, the types of skin care products are increasing. Among them, cleansing skin care products as the basis of skin care have received more attention. Mud mask, as one of the cleansing skin care products, has the function and effect of cleansing the skin and can improve the skin condition. Cleansing mud mask can further soften the skin and has a deep cleansing effect. The granular material in the mask will have a mild adsorption effect, remove excess oil and dead skin, and make the skin look smooth and clean.

[0003] Patent CN 116350528 A discloses a zeolite temperature-sensitive cleansing mud mask and its preparation method and use method. The raw materials of the cleansing mud mask in this patent are as follows: glycerin, glyceryl stearate, PEG-100 stearate, cetearyl alcohol, bisabolol, ginger root extract, Cambrian blue mud, kaolin, erythritol, lactic acid, glycolic acid, lactobionic acid, sustained-release salicylic acid, panthenol, zeolite, butylene glycol, p-hydroxyacetophenone, 1,2-hexanediol, etc. Using this cleansing mud mask can help open pores, soften cuticles, strongly adsorb, and deeply clean pores. However, the requirements for mud masks are getting higher and higher. Not only are mud masks required to have good cleaning effects, but they are also required to have effects such as anti-oxidation and moisturizing. Therefore, the efficacy of the cleansing mud mask in this patent still needs to be improved. Patent CN115120511A discloses a diatomaceous earth cleansing mud mask, the components of which include: diatomaceous earth, kaolin, bentonite, mixed moisturizer, pine needle extract, aloe extract, glycerin, betaine, erythritol, propylene glycol, panthenol, caprylic / capric triglyceride, polydimethylsiloxane, deionized water, composite emulsifier, thickener. However, the comprehensive performance of the diatomaceous earth cleansing mud mask of this patent needs to be improved, especially the moisturizing and oil-controlling effects on the skin. In addition, many mud masks currently available on the market will make the face dry and oily after use, and the friction of the particulate matter in some mud masks may harm the skin.

[0004] Based on the problems existing in the prior art, it is of great significance to develop a green and environmentally friendly cleaning mud film with good comprehensive effects. Summary of the invention

[0005] The present invention discloses a glacier mud skin cleansing, soothing and repairing mud mask and a preparation method thereof. Modified Canadian bentonite and glucosamine derivatives are compounded with other ingredients. The prepared glacier mud skin cleansing, soothing and repairing mud mask has good cleaning, moisturizing, oil control, soothing and antioxidant effects, and can significantly improve the brightness of facial skin after being used for a period of time. The mud mask of the present invention is also suitable for when skin problems occur or when the skin is hot. It can quickly cool the skin and play a soothing role. The research and development concept of the mud mask in the present invention is "return to nature and live a healthy life". It is hoped that the skin will be more balanced and stable through the care of natural energy, reducing external intervention and influence.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] The first aspect of the present invention provides a glacier mud skin cleansing, soothing and repairing mud mask, which comprises the following components in parts by weight:

[0008] 30-50 parts of pure water, 20-30 parts of modified Canadian bentonite, 3-6 parts of caprylic / capric triglyceride, 2-5 parts of glycerin, 0.5-2 parts of sodium hyaluronate, 0.5-1 parts of ceramide, 0.2-0.6 parts of lavender extract, 0.1-0.5 parts of glucosamine derivatives, 0.01-0.1 parts of chamomile extract, and 0.5-1 parts of antibacterial agent.

[0009] In some embodiments, the preparation steps of the modified Canadian bentonite are:

[0010] (1) Put tea extract in deionized water, adjust the pH to 5-6, add Canadian bentonite, stir evenly, stir at 65-75° C. for 6-10 h, cool to room temperature after the reaction, separate, wash the obtained solid to neutral, dry and grind to obtain solid 1;

[0011] (2) Take the solid 1 of step (1), add an aqueous solution of trehalose thereto, and then add potassium dihydrogen phosphate to adjust the pH to 3-4, stir evenly, stir and react at 80-90° C. for 1-3 hours, cool, wash, separate, dry and grind to obtain modified Canadian bentonite.

[0012] In some embodiments, the mass ratio of the tea extract to Canadian bentonite is 1:(40-50).

[0013] Preferably, the mass ratio of the tea extract to Canadian bentonite is 1:45.

[0014] In some embodiments, the amount of trehalose used in step (2) is 35-45 wt % of solid 1.

[0015] Preferably, the amount of trehalose used in step (2) is 40 wt % of the solid 1.

[0016] In some embodiments, the preparation steps of the glucosamine derivative are:

[0017] Glucosamine and catechins are added to dimethyl sulfoxide, and the mixture is kept warm for 20-24 hours under inert gas and stirring conditions. After the reaction, the mixture is poured into anhydrous ethanol, filtered, washed, and dried to obtain a glucosamine derivative.

[0018] In some embodiments, the molar ratio of glucosamine to catechin is 1:(1.1-1.3).

[0019] Preferably, the molar ratio of glucosamine to catechin is 1:1.2.

[0020] In some embodiments, the temperature of the insulation reaction is 80-90°C.

[0021] Preferably, the temperature of the insulation reaction is 85°C.

[0022] In some embodiments, the preparation steps of the tea extract are: take the black tea powder that has been crushed and passed through a 40-100 mesh sieve, add ethanol solution thereto, reflux extract at 60-80°C for 6-8h, filter, pass the obtained filtrate through LSA-10 macroporous resin, elute, and dry the eluate to obtain the tea extract.

[0023] In some embodiments, the average particle size of the modified Canada bentonite is ≤25 μm.

[0024] The second aspect of the present invention provides a method for preparing the glacial mud skin cleansing, soothing and repairing mud mask described in the above scheme, comprising the following preparation steps:

[0025] After sterilizing the modified Canadian bentonite, mix it evenly with pure water, add sodium hyaluronate, ceramide, lavender extract, glucosamine derivatives, tea extract and chamomile extract at 40-50°C and homogenize, then add caprylic / capric triglyceride, glycerin and antibacterial agent in sequence at 20-40°C and homogenize to obtain a glacier mud cleansing, soothing and repairing mud mask.

[0026] The present invention compounds modified Canadian bentonite with glucosamine derivatives and other ingredients to prepare a cleansing mud mask with a fine and uniform texture and easy application, and has multiple functions such as cleansing, moisturizing, anti-oxidation and soothing, and can provide comprehensive care for the skin.

[0027] The Canadian bentonite used in the present invention is collected from the west coast of Columbia, Canada. The bentonite collection area is exposed after the ice and snow melt and the seawater recedes, and the collected bentonite is naturally dried before use. The Canadian bentonite used in the present invention is a natural substance, has a high content of organic matter, minerals and humic acid, and is mild in nature. Using it in skin care products can help the skin metabolize keratin and improve skin condition. After testing, the Canadian bentonite used in the present invention contains a variety of lipids that are beneficial to the skin, such as fatty acids (Fatty Acyls), glycerolipids (Glycerolipids), glycerophospholipids (Glycerophospholipids), sphingolipids (Sphingolipids), glycolipids (Saccharolipids), etc. Fatty acids are an important component of the skin barrier, can protect skin health, reduce water loss, and have antibacterial and anti-inflammatory effects; glycerolipids are one of the main components of lipids on the skin surface, which helps to maintain skin lubrication and moisturizing, and also participates in cell energy metabolism; glycerophospholipids have good antioxidant properties, can neutralize free radicals, and slow down the cell aging process; ceramides in sphingolipids can help repair the skin barrier and maintain skin moisture; glycolipids can form a protective layer on the skin surface, which helps to lock in moisture, and also participates in signal transmission between cells, which has a positive effect on skin health. These substances play an important role in maintaining skin barrier, moisturizing, anti-oxidation, anti-inflammatory and cell signaling, and are an indispensable component of skin health. The use of the mud film containing these ingredients of the present invention can effectively improve and maintain the healthy state of the skin. Tea extract has functions such as anti-oxidation, whitening and moisturizing. Trehalose is a natural sugar with excellent moisture retention and stability. These two substances are used for the modification of Canadian bentonite and applied to the mud film, which can improve the performance and skin care effect of the mud film. The present invention first pre-treats Canadian bentonite with tea extract. The various molecular structures in the tea extract may introduce active substances such as tea polyphenols on the surface of bentonite by adsorption or covalent bonding, enhance the antioxidant properties of bentonite, and make the bentonite surface have better hydrophilicity and ion exchange capacity, thereby improving its binding force and reaction sites with subsequent trehalose modifiers. The introduction of trehalose subsequently provides additional moisturizing and skin care functions for Canadian bentonite. Trehalose molecules can form stable complexes with tea extracts on the surface of bentonite, enhancing the hydrophilicity of bentonite and its adsorption capacity to the skin. In addition, trehalose also has soothing and antioxidant properties, which can further enhance the skin care effect of the cleansing mud mask. The modified Canadian bentonite exhibits excellent adsorption properties in the cleansing mud mask. Due to the increase in surface functional groups, the modified Canadian bentonite can more effectively absorb oil and dirt on the skin surface, thereby providing a deeper cleansing effect and excellent hydration and moisturizing properties.In addition, the dispersion stability of modified Canadian bentonite in the mud film system is also improved, which can reduce the sedimentation and aggregation of the mud film during storage and use, and is beneficial to the preparation and application of clean mud films.

[0028] Glucosamine is a natural and environmentally friendly amino sugar, which has antioxidant, antibacterial and anti-inflammatory effects; while catechins are a class of polyphenol compounds, which also have multiple biological activities such as antioxidant, anti-inflammatory and antibacterial. The present invention synthesizes a glucosamine derivative from these two substances under certain reaction conditions, and the derivative has certain moisturizing, antioxidant, anti-aging and anti-inflammatory effects; and by controlling its effective concentration in the mud mask, it forms a stable system with other effective ingredients in the mud mask, which has better safety, stability and usage experience.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention discloses a glacier mud skin cleansing, soothing and repairing mud mask and a preparation method thereof. Modified Canadian bentonite, glucosamine derivatives and other ingredients are compounded to prepare a glacier mud skin cleansing, soothing and repairing mud mask which has good cleansing, moisturizing, oil control and anti-oxidation effects, and can significantly improve the brightness and glossiness of facial skin after being used for a period of time.

[0031] 2. The present invention uses tea extract and trehalose to modify Canadian bentonite. The modified Canadian bentonite can more effectively absorb grease and dirt on the skin surface, thereby providing a deeper cleansing effect and excellent moisturizing and moisturizing properties. Applying it to a mud mask can enhance the performance of the mud mask and the skin care effect.

[0032] 3. The present invention synthesizes a glucosamine derivative by combining glucosamine and catechin under certain reaction conditions. The derivative has certain moisturizing, anti-oxidation, anti-aging, anti-inflammatory and soothing effects, which is beneficial to improving the comprehensive performance of the mud mask. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a real picture of the glacial mud skin cleansing, soothing and repairing mud mask prepared in Example 3 of the present invention. DETAILED DESCRIPTION

[0034] Now describe in detail various exemplary embodiments of the present invention, this detailed description should not be considered as limitation of the present invention, but should be understood as a more detailed description of certain aspects, characteristics and embodiments of the present invention. It should be understood that the terms described in the present invention are only for describing a particular embodiment, and are not used to limit the present invention. In addition, for the numerical range in the present invention, it should be understood that each intermediate value between the upper limit and the lower limit of the range is also specifically disclosed. Each smaller range between the intermediate value in any stated value or stated range and any other stated value or intermediate value in the range is also included in the present invention. The upper and lower limits of these smaller ranges can be independently included or excluded in the range.

[0035] Unless otherwise indicated, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein may also be used in the practice or testing of the present invention. Various modifications and variations may be made to the specific embodiments of the present invention specification without departing from the scope or spirit of the present invention, which will be apparent to those skilled in the art. Other embodiments obtained from the present invention specification will be apparent to the technician. The present application specification and examples are exemplary only.

[0036] The words “include,” “including,” “have,” or “contain,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0037] It should be noted that the sterilization treatment described in the present invention is a routine operation of those skilled in the art and can be selected according to actual operation.

[0038] The mass fractions described in the following embodiments may be grams, kilograms, tons or other mass units.

[0039] The Canadian bentonite used in the present invention was collected from the west coast of Columbia, Canada; the clay used in Comparative Example 5 was white clay purchased from NATURAL POLAND; the chamomile extract used was purchased from Shaanxi Zhoushi Digital Industry Development Group Co., Ltd.; and the antibacterial agent used was magnolol.

[0040] Preparation Example 1

[0041] The preparation steps of modified Canadian bentonite are:

[0042] (1) 1 g of tea extract was placed in 200 mL of deionized water, the pH of which was adjusted to 5.5, 90 g of Canadian bentonite was added thereto, and the mixture was stirred evenly. The mixture was stirred at 70° C. for 8 h. After the reaction was completed, the mixture was cooled to room temperature and centrifuged. The obtained solid was washed with deionized water until neutral, dried at 60° C. to constant weight, and ground through a 200-mesh sieve to obtain solid 1;

[0043] (2) Take 100 g of the solid 1 obtained in step (1), add 250 mL of an aqueous solution containing 40 g of trehalose thereto, then add potassium dihydrogen phosphate to adjust the pH to 3.5, stir evenly, react with stirring at 80° C. for 3 h, cool to room temperature, wash with deionized water until neutral, centrifuge, dry at 60° C. to constant weight, and grind through a 600-mesh sieve to obtain modified Canadian bentonite.

[0044] The preparation steps of tea extract are as follows:

[0045] Take 10 kg of black tea powder that has been crushed and passed through a 60-mesh sieve, add 50 kg of 95% by volume ethanol solution, reflux extract at 70° C. for 7 hours, filter, pass the filtrate through LSA-10 macroporous resin, elute it with deionized water, and dry the eluate at 90° C. for 8 hours to obtain tea extract.

[0046] Preparation Example 2

[0047] The preparation steps of modified Canadian bentonite are:

[0048] 1 g of tea extract was completely dissolved in 200 mL of deionized water, and the pH was adjusted to 5.5. 90 g of Canadian bentonite was added thereto and stirred evenly. The mixture was stirred at 70° C. for 8 h. After the reaction was completed, the mixture was cooled to room temperature and centrifuged. The obtained solid was washed with deionized water until neutral, dried at 60° C. to constant weight, and ground through a 200-mesh sieve to obtain modified Canadian bentonite.

[0049] The preparation steps of tea extract are the same as those in Preparation Example 1.

[0050] Preparation Example 3

[0051] The preparation steps of modified Canadian bentonite were the same as those in Preparation Example 1, except that 0.5 g of tea extract was used.

[0052] Preparation Example 4

[0053] The preparation steps of modified Canadian bentonite are the same as those in Preparation Example 1, except that 30 g of trehalose is used.

[0054] Preparation Example 5

[0055] The preparation steps of glucosamine derivatives are:

[0056] 0.1 mol of glucosamine and 0.12 mol of catechins were added to 500 mL of dimethyl sulfoxide, and the mixture was kept warm for 22 hours under a nitrogen atmosphere at 85°C and a stirring speed of 500 r / min. After the reaction, the obtained mixture was poured into 600 mL of anhydrous ethanol, filtered, washed with anhydrous ethanol for 3 times, and dried at 60°C to constant weight to obtain a glucosamine derivative.

[0057] Preparation Example 6

[0058] The preparation steps of the glucosamine derivative are the same as those in Preparation Example 5, except that 0.1 mol of catechin is used.

[0059] Example 1

[0060] A method for preparing a glacier mud skin cleansing, soothing and repairing mud mask, comprising the following preparation steps:

[0061] In terms of weight, 20 parts of modified Canadian bentonite are sterilized and then mixed evenly with 30 parts of pure water. At 40°C, 0.5 parts of sodium hyaluronate, 0.5 parts of ceramide, 0.2 parts of lavender extract, 0.1 parts of glucosamine derivatives and 0.01 parts of chamomile extract are added, and homogenized at 3000r / min for 10 minutes. Then, 3 parts of caprylic / capric triglyceride, 2 parts of glycerol and 0.5 parts of antibacterial agent are added in sequence at 20°C, and homogenized at 3000r / min for 10 minutes to obtain a glacier mud cleansing, soothing and repairing mud mask.

[0062] The modified Canadian bentonite used was obtained from Preparation Example 1; the aminoglucosamine derivative used was obtained from Preparation Example 5.

[0063] Example 2

[0064] A method for preparing a glacier mud skin cleansing, soothing and repairing mud mask, comprising the following preparation steps:

[0065] In terms of weight, 30 parts of modified Canadian bentonite are sterilized and then mixed evenly with 50 parts of pure water. 2 parts of sodium hyaluronate, 1 part of ceramide, 0.6 parts of lavender extract, 0.5 parts of glucosamine derivatives and 0.1 parts of chamomile extract are added at 50°C, and homogenized at 3000r / min for 10 minutes. Then, 6 parts of caprylic / capric triglyceride, 5 parts of glycerin and 1 part of antibacterial agent are added in sequence at 40°C, and homogenized at 3000r / min for 10 minutes to obtain a glacier mud cleansing, soothing and repairing mud mask.

[0066] The modified Canadian bentonite used was obtained from Preparation Example 1; the aminoglucosamine derivative used was obtained from Preparation Example 5.

[0067] Example 3

[0068] A method for preparing a glacier mud skin cleansing, soothing and repairing mud mask, comprising the following preparation steps:

[0069] In terms of weight, 25 parts of modified Canadian bentonite are sterilized and then mixed evenly with 45 parts of pure water. 1 part of sodium hyaluronate, 0.8 parts of ceramide, 0.5 parts of lavender extract, 0.3 parts of glucosamine derivatives and 0.05 parts of chamomile extract are added at 45°C, and homogenized at 3000r / min for 10 minutes. Then, 4 parts of caprylic / capric triglyceride, 3 parts of glycerol and 0.7 parts of antibacterial agent are added in sequence at 30°C, and homogenized at 3000r / min for 10 minutes to obtain a glacier mud cleansing, soothing and repairing mud mask.

[0070] The modified Canadian bentonite used was obtained from Preparation Example 1; the aminoglucosamine derivative used was obtained from Preparation Example 5.

[0071] Example 4

[0072] A method for preparing a glacial mud skin cleansing, soothing and repairing mud mask, the specific implementation method is the same as that of Example 3, except that the modified Canadian bentonite used is obtained from Preparation Example 2.

[0073] Example 5

[0074] A method for preparing a glacial mud skin cleansing, soothing and repairing mud mask, the specific implementation method is the same as that of Example 3, except that the modified Canadian bentonite used is obtained from Preparation Example 3.

[0075] Example 6

[0076] A method for preparing a glacial mud skin cleansing, soothing and repairing mud mask, the specific implementation method is the same as that of Example 3, except that the modified Canadian bentonite used is obtained from Preparation Example 4.

[0077] Example 7

[0078] A method for preparing a glacier mud skin cleansing, soothing and repairing mud mask, the specific implementation method is the same as that of Example 3, except that the glucosamine derivative used is obtained from Preparation Example 6.

[0079] Comparative Example 1

[0080] A method for preparing a cleansing and brightening mud mask comprises the following preparation steps:

[0081] In terms of weight, 25 parts of Canadian bentonite that has passed through 600 mesh are sterilized and then mixed evenly with 45 parts of pure water. 1 part of sodium hyaluronate, 0.8 parts of ceramide, 0.5 parts of lavender extract, 0.3 parts of glucosamine derivatives and 0.05 parts of chamomile extract are added at 45°C, and homogenized at 3000r / min for 10 minutes. Then, 4 parts of caprylic / capric triglyceride, 3 parts of glycerol and 0.7 parts of antibacterial agent are added in sequence at 30°C, and homogenized at 3000r / min for 10 minutes to obtain a glacier mud cleansing, soothing and repairing mud mask.

[0082] The glucosamine derivative used was obtained from Preparation Example 5.

[0083] Comparative Example 2

[0084] A method for preparing a cleansing and brightening mud mask, the specific implementation method is the same as that of Example 3, except that an equal mass of glucosamine is used instead of a glucosamine derivative.

[0085] Comparative Example 3

[0086] A method for preparing a cleansing and brightening mud mask, the specific implementation method is the same as that of Example 3, except that an equal mass of catechins is used instead of the glucosamine derivative.

[0087] Comparative Example 4

[0088] A method for preparing a cleansing and brightening mud mask comprises the following preparation steps:

[0089] In terms of weight, 25 parts of modified Canadian bentonite that has passed 600 mesh are sterilized and then mixed evenly with 45 parts of pure water. 1 part of sodium hyaluronate, 0.8 parts of ceramide, 0.5 parts of lavender extract and 0.05 parts of chamomile extract are added at 45°C, and homogenized at 3000r / min for 10 minutes. Then, 4 parts of caprylic / capric triglyceride, 3 parts of glycerol and 0.7 parts of antibacterial agent are added in sequence at 30°C, and homogenized at 3000r / min for 10 minutes to obtain a glacier mud cleansing, soothing and repairing mud mask.

[0090] The modified Canadian bentonite used was obtained from Preparation Example 1.

[0091] Comparative Example 5

[0092] A method for preparing a cleansing and brightening mud mask, the specific implementation method is the same as that of Example 3, except that an equal mass of clay is used instead of modified Canadian bentonite.

[0093] Performance Testing

[0094] The glacier mud skin cleansing and soothing repairing mud masks prepared in the examples and comparative examples were subjected to the following performance tests.

[0095] 39 Chinese female volunteers aged 25-30 with healthy facial skin and relatively consistent condition were recruited and randomly divided into groups 1-13, with 3 people in each group. Group 1 was a blank control group, and the volunteers did not use the cleansing and brightening mud mask of the present invention; the volunteers in groups 2-13 used the cleansing and brightening mud masks obtained in Examples 1-7 and Comparative Examples 1-5, respectively. During the experiment, the skin care products used by each volunteer remained consistent.

[0096] The volunteers in Group 1 cleansed their faces at 8.30 pm and did not apply any skin care products after cleansing. The experimental duration was 60 days. Each volunteer in Groups 2-13 cleansed their faces at 8.30 pm and applied 5 g of the mud mask of the corresponding embodiments and comparative examples on the entire face after cleansing. The mud mask was washed off after leaving it on for 15 minutes and no skin care products were applied. The experimental duration was 60 days, and the mud mask was applied every 5 days.

[0097] 1. Skin moisture and oil content test

[0098] The German CK skin analyzer MPA580 was used to test the face of each volunteer, and each person was tested 5 times and the average value was taken. The values ​​of D0, D30, and D60 were recorded and the growth rate from D0 to D30 and the growth rate from D0 to D60 were calculated (the test time of D0 was 10 am on the day when the experiment started, the test time of D30 was 10 am on the day after the end of the 30th day of the experiment, and the test time of D60 was 10 am on the day after the end of the 60th day of the experiment). Among them, the calculation formulas for water content and oil content are D30 growth rate = (D30-D0) / D0×100%; D60 growth rate = (D60-D0) / D0×100%.

[0099] 2. Skin pH test

[0100] The facial pH value of each volunteer was tested using the German CK skin analyzer MPA580. Each volunteer was tested 5 times at D0, D30, and D60, and the average value was taken.

[0101] 3. Sterilization test

[0102] According to the QB / T2872-2017 facial mask standard, bacterial colony culture medium was cultured at D0, D30, and D60.

[0103] 4. Skin brightness test

[0104] The facial skin brightness of each volunteer was tested 5 times at D0, D30, and D60 using a German CK skin analyzer MPA580, and the average value was taken.

[0105] The specific test results are shown in Table 1.

[0106] Table 1

[0107]

[0108] As shown in Table 1, the cleansing and brightening mud masks prepared in Examples 1-3 have good cleansing and moisturizing effects. Frequent use can improve facial condition and enhance skin brightness. Figure 1 As shown, it can be seen that the mud mask has a fine and uniform texture and is easy to apply. Compared with Example 3, the preparation conditions of the modified Canadian bentonite used in Examples 4-6 have changed (trehalose is not used, the amount of tea extract is changed, and the amount of trehalose is changed), which weakens the antioxidant property of the bentonite, resulting in a reduction in the brightening effect of the mud mask on the face; the amount of catechins used in the preparation process of the glucosamine derivative used in Example 7 has changed, the yield of the prepared glucosamine derivative has decreased, and its performance has also decreased, resulting in a reduction in the cleansing and moisturizing ability of the mud mask; in Comparative Example 1, unmodified Canadian bentonite is used instead of modified Canadian bentonite, and the biocompatibility and antioxidant properties of the unmodified Canadian bentonite are better than those of the modified Canadian bentonite. The results show that the cleaning ability and facial brightening effect of the mud mask are poor, resulting in significantly reduced cleaning ability and facial brightening effect of the mud mask; in Comparative Examples 2 and 3, equal masses of glucosamine and catechins are used instead of glucosamine derivatives, respectively, and no glucosamine derivatives are added in Comparative Example 4. The moisturizing and antioxidant abilities of glucosamine and catechins are weaker than those of glucosamine derivatives. Not adding glucosamine derivatives to the mud mask makes the hydrating and brightening effect of the mud mask worse; in Comparative Example 5, clay is used instead of modified Canadian bentonite. The minerals and beneficial substances secreted by microorganisms in the clay are less than those of Canadian bentonite, and it does not have antioxidant properties, which significantly reduces the comprehensive effect of the prepared mud mask.

[0109] The above is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present application. Although the present application is disclosed as above in the preferred embodiment, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution.

Claims

1. A glacier mud skin cleansing, soothing and repairing mud mask, characterized in that: In parts by weight, it includes the following components: 30-50 parts of pure water, 20-30 parts of modified Canadian bentonite, 3-6 parts of caprylic / capric triglyceride, 2-5 parts of glycerin, 0.5-2 parts of sodium hyaluronate, 0.5-1 parts of ceramide, 0.2-0.6 parts of lavender extract, 0.1-0.5 parts of glucosamine derivatives, 0.01-0.1 parts of chamomile extract, and 0.5-1 parts of antibacterial agent.

2. The glacier mud skin cleansing, soothing and repairing mud mask according to claim 1, characterized in that: The preparation steps of the modified Canadian bentonite are: (1) Put tea extract in deionized water, adjust the pH to 5-6, add Canadian bentonite, stir evenly, stir at 65-75° C. for 6-10 h, cool to room temperature after the reaction, separate, wash the obtained solid to neutral, dry and grind to obtain solid 1; (2) Take the solid 1 of step (1), add an aqueous solution of trehalose thereto, and then add potassium dihydrogen phosphate to adjust the pH to 3-4, stir evenly, stir and react at 80-90° C. for 1-3 hours, cool, wash, separate, dry and grind to obtain modified Canadian bentonite.

3. The glacier mud skin cleansing, soothing and repairing mud mask according to claim 2, characterized in that: The mass ratio of the tea extract to Canadian bentonite is 1:(40-50).

4. The glacier mud skin cleansing, soothing and repairing mud mask according to claim 3, characterized in that: The amount of trehalose used in step (2) is 35-45 wt % of the solid 1.

5. The glacier mud skin cleansing, soothing and repairing mud mask according to claim 1, characterized in that: The preparation steps of the glucosamine derivative are: Glucosamine and catechins are added to dimethyl sulfoxide, and the mixture is kept warm for 20-24 hours under inert gas and stirring conditions. After the reaction, the mixture is poured into anhydrous ethanol, filtered, washed, and dried to obtain a glucosamine derivative.

6. The glacier mud skin cleansing, soothing and repairing mud mask according to claim 5, characterized in that: The molar ratio of glucosamine to catechin is 1:(1.1-1.3).

7. The glacier mud skin cleansing, soothing and repairing mud mask according to claim 5, characterized in that: The temperature of the heat preservation reaction is 80-90°C.

8. The glacier mud skin cleansing, soothing and repairing mud mask according to claim 2, characterized in that: The preparation steps of the tea extract are as follows: taking the black tea powder after crushing and passing through a 40-100 mesh sieve, adding ethanol solution thereto, reflux extraction at 60-80° C. for 6-8 hours, filtering, passing the obtained filtrate through LSA-10 macroporous resin, eluting, and drying the eluate to obtain the tea extract.

9. The glacier mud skin cleansing, soothing and repairing mud mask according to claim 1, characterized in that: The average particle size of the modified Canadian bentonite is ≤25 μm.

10. A method for preparing the glacial mud skin cleansing, soothing and repairing mud mask according to any one of claims 1 to 9, characterized in that: The method comprises the following preparation steps: After sterilizing the modified Canadian bentonite, mix it evenly with pure water, add sodium hyaluronate, ceramide, lavender extract, glucosamine derivatives, tea extract and chamomile extract at 40-50°C and homogenize, then add caprylic / capric triglyceride, glycerin and antibacterial agent in sequence at 20-40°C and homogenize to obtain a glacier mud cleansing, soothing and repairing mud mask.

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