Skin-brightening, soothing and moisturizing mask and preparation method thereof

Abstract

The invention relates to the field of A61K8 / 18, in particular to a skin-brightening, soothing and moisturizing mask and a preparation method thereof.The skin-brightening, soothing and moisturizing mask is characterized in that mask base cloth serves as a base body, and mask essence is prepared from 85-95 parts of deionized water, 0.01-0.03 part of plant extract, 0.01-0.05 part of chelating agent, 0.1-0.3 part of pharmaceutical-grade polymer, 3-6 parts of alcohol moisturizer, 0.15-0.3 part of hyaluronic acid composition and 3-5 parts of skin conditioner; the problem that the mask essence is easy to flow during use is solved; furthermore, through formula blending, the temperature-resistant range of the mask essence is widened, and the technical problem that the temperature-resistant range of the mask essence is narrow is solved.

Description

Technical Field

[0001] The invention relates to the A61K8 / 18 field, and in particular to a skin-lightening, soothing and moisturizing facial mask and a preparation method thereof. Background Art

[0002] The development of the national economic level and the improvement of personal quality of life have brought about many new requirements for skin care products. Various skin care products with moisturizing, whitening, acne removal, anti-aging, repair and other functions have emerged. Moisturizing is the cornerstone of functional skin care products. As people's preference for green, environmentally friendly and safe skin care products increases, and their trust in them increases, existing functional skin care products mainly use green cosmetic raw materials to avoid safety issues during the use of skin care products.

[0003] Chinese patent CN111419774B discloses a highly moisturizing facial mask based on cellulose fiber and its preparation method, which uses a facial mask base liquid with a modified facial mask base cloth, collagen, antimicrobial peptides, and Chinese medicine additives as the main functional ingredients, so that the prepared moisturizing facial mask has a certain antibacterial effect while moisturizing, but its Nepal gold methyl ester preservatives and heavy metal source treatment agents cannot effectively guarantee the high safety of the facial mask, and the compatibility, dispersibility and system stability of each component in its formula cannot be effectively guaranteed. Chinese patent CN103877001A discloses a Tremella extract moisturizing facial mask liquid and a moisturizing facial mask using the liquid, which is mainly achieved by adding Tremella extract with glycerin and other moisturizers, but the moisturizing effect and the breathability and fit of the facial mask need to be further improved, and the current facial mask essence is easy to flow when used. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a skin-brightening, soothing and moisturizing facial mask to solve the problem that the facial mask essence is easy to flow when used; further through formula adjustment, the temperature resistance range of the facial mask essence is widened to solve the technical problem of the narrow temperature resistance range of the facial mask essence.

[0005] On one hand, the present invention provides a skin-lightening, soothing and moisturizing facial mask, comprising a facial mask base fabric and a facial mask essence; in parts by weight, the raw materials for preparing the facial mask essence include at least: 85-95 parts of deionized water, 0.01-0.03 parts of plant extracts, 0.01-0.05 parts of chelating agents, 0.1-0.3 parts of medical-grade polymers, 3-6 parts of alcohol moisturizers, 0.15-0.3 parts of hyaluronic acid compositions, and 3-5 parts of skin conditioners.

[0006] As a preferred technical solution, the material of the mask base fabric is one or more of cotton fiber, viscose fiber, Tencel, cuprammonium fiber, silk, superfine fiber, and chitosan fiber. Based on cost considerations, the mask base fabrics on the market are mainly cotton paper, Tencel material, and cuprammonium fiber. Some high-end brand masks are based on the absorption of essence. The corresponding matching selection or modification is self-prepared to maximize the effect of the mask, but the cotton fiber mask base fabric itself will absorb a large amount of essence, interfering with the skin's effective absorption of the essence, and Tencel fiber has a low fit with the face during actual use, and is easy to fall off and deform. Preferably, the material of the mask base fabric is superfine fiber, which has a high coordination effect with the mask essence prepared in this application, has a high skin-friendly experience, and has a good breathable fit of the mask, which promotes the skin's absorption of the mask essence and ensures the high hydration, moisturizing, and repairing ability of the mask. The mask base fabric is a superfine fiber non-woven fabric, which is purchased from Shandong Meterer New Materials Co., Ltd.

[0007] As a preferred technical solution, the alcohol moisturizing agent is selected from at least one of methylpropanediol, glycerol polyether-26, isopentyl glycol, caprylyl glycol, 1,2-hexanediol, p-hydroxyacetophenone, dipropylene glycol, glycerol, 1,3-butylene glycol, and polyglycerol-10; preferably, the alcohol moisturizing agent includes methylpropanediol, glycerol polyether-26, isopentyl glycol, caprylyl glycol, 1,2-hexanediol, p-hydroxyacetophenone, and dipropylene glycol; further preferably, the alcohol moisturizing agent includes, by weight, methylpropanediol, glycerol polyether-26, isopentyl glycol, caprylyl glycol, 1,2-hexanediol, p-hydroxyacetophenone, and dipropylene glycol.

[0008] As a preferred technical solution, the raw materials for preparing the hyaluronic acid composition include at least water, sodium hyaluronate cross-linked polymer, sodium hyaluronate, hydrolyzed sodium hyaluronate, hyaluronic acid, acetylated sodium hyaluronate, hydroxypropyltrimethylammonium chloride hyaluronic acid, 1,2-hexanediol, and caprylhydroxamic acid; as a preferred technical solution, the raw materials for preparing the hyaluronic acid composition also include hydrolyzed glycosaminoglycans.

[0009] Preferably, the brand of the hyaluronic acid composition is Tiansheng 7D-HA, which is purchased from Shandong Tiansheng Biotechnology Co., Ltd.

[0010] As a preferred technical solution, the mass ratio of the alcohol moisturizer and the hyaluronic acid composition is (4-6): (0.18-0.25). In the present application, the hydrating and moisturizing performance of the facial mask is effectively improved by using an alcohol moisturizer in combination with a hyaluronic acid composition. Through a large number of experimental studies, the present application has found that when the mass ratio of the alcohol moisturizer and the hyaluronic acid composition is controlled to be (): (), the provided facial mask effectively improves the skin's moisture absorption capacity and water locking capacity while having a long-lasting moisturizing effect, making the skin hydrated, delicate, soft and smooth. It is particularly suitable for women who need to keep their makeup on for a long time and for men to hydrate and moisturize before and after putting on makeup, ensuring the long-lasting makeup effect and rapid hydration and moisturizing after makeup. During the research process, the applicant unexpectedly discovered that when the raw materials for preparing the hyaluronic acid composition also include hydrolyzed glycosaminoglycan, the combination with a specific weight portion of an alcohol moisturizer significantly improves the stability of the hyaluronic acid compounds in the system while improving the skin-friendliness of the mask, assisting the keratin in the skin's stratum corneum to bind moisture, and helping to promote the skin's absorption and utilization of the active ingredients in plant extracts and the functional ingredients in skin conditioners, so that the provided mask can achieve the effect of rapid hydration and long-lasting moisturizing and repair.

[0011] As a preferred technical solution, the skin conditioner includes 1-2 parts of skin conditioner A, 0.8-1.5 parts of skin conditioner B, and 1.8-2.2 parts of skin conditioner C in parts by weight;

[0012] As a preferred technical solution, the skin conditioner A is a combination of turmeric gel, sunflower stem cells, and kava extract UP; preferably, the mass ratio of the turmeric gel, sunflower stem cells, and kava extract UP is (0.2-0.3): (0.05-0.12): (0.8-1.2).

[0013] Preferably, the raw materials for preparing the turmeric gel at least include lactobacillus fermentation products, turmeric (CURCUMALONGA) root extract, butylene glycol, and 1,2-hexanediol; the turmeric gel is Turmericgel turmeric gel, which comes from Shanghai Ronghai Biological.

[0014] Preferably, the raw materials for preparing the sunflower stem cells include at least deionized water, glycerophosphoinositol choline salt, phenoxyethanol, and ethylhexylglycerol; and the sunflower stem cells are sourced from Shanghai Tongyi Chemical.

[0015] Preferably, the raw materials for preparing the kava extract UP include at least deionized water, Piper methysticum leaf / root / stem extract, and butylene glycol; the kava extract UP comes from Shanghai Boenkai.

[0016] In the present application, a skin conditioner A including turmeric gel, sunflower stem cells, and kava extract UP is used, and the mass ratio of turmeric gel, sunflower stem cells, and kava extract UP is controlled to be (0.2-0.3): (0.05-0.12): (0.8-1.2), and the skin conditioner B, skin conditioner C and plant extracts in the system are combined to effectively balance skin moisture, enhance skin water circulation, and have a certain soothing and calming effect on the skin.

[0017] As a preferred technical solution, the skin conditioning agent B at least includes trehalose, tetrahydromethylpyrimidine carboxylic acid, tranexamic acid, and arginine; preferably, the mass ratio of trehalose, tetrahydromethylpyrimidine carboxylic acid, tranexamic acid, and arginine is (0.4-0.6): (0.03-0.06): (0.4-0.6): (0.08-0.12); The present application found in the process of exploration that when the mass ratio is (0.4-0.6): (0.03-0.06): (0.4-0.6 ): (0.08-0.12) of trehalose, ectoine, tranexamic acid, and arginine, the provided mask system has high stability, ensuring the hydrating, moisturizing and repairing effects of the mask. The reason may be that, at this weight ratio, trehalose and ectoine can exert their synergistic effect to the maximum extent, provide nonspecific protection for tranexamic acid, arginine and other active conditioning ingredients in the system, improve the stability of the effective ingredients in the system, ensure product quality, and extend the product's use time.

[0018] As a preferred technical solution, the skin conditioner C includes at least betaine, panthenol, inositol, niacinamide, and acetyl glucosamine; preferably, the mass ratio of betaine, panthenol, inositol, niacinamide, and acetyl glucosamine is 0.5:(0.3-0.7):(0.05-0.12):(0.8-1.2):0.1; during the research process, the present application found that when the mass ratio of betaine, panthenol, inositol, niacinamide, and acetyl glucosamine is 0.5:(0.3-0.7):(0.05-0.12):(0.8-1.2):0.1, the moisturizing and repairing effects of the mask are significantly improved while having certain anti-aging effects.

[0019] As a preferred technical solution, the mass ratio of the skin conditioner A, skin conditioner B, and skin conditioner C is (1-1.5): (1-1.3): 2. Through a large number of experimental studies, the present application has found that when the mass ratio of the skin conditioner A, skin conditioner B, and skin conditioner C is controlled to be (1-1.5): (1-1.3): 2, the plant extract, alcohol moisturizer and hyaluronic acid composition in the system are combined, so that the provided facial mask has outstanding hydrating and moisturizing effects, while having a corresponding calming, soothing and repairing effect on the skin, making the skin smooth and shiny, and the user experience is greatly improved.

[0020] As a preferred technical solution, the plant extract is selected from at least one of chrysanthemum extract (Feverfew Extract), ganoderma extract (Ganoderma Extract), Astragalus membranaceus root extract, and Centella asiatica extract; preferably, the plant extract is a combination of chrysanthemum extract (Feverfew Extract) and ganoderma extract (Ganoderma Extract), and the mass ratio of the chrysanthemum extract (Feverfew Extract) and ganoderma extract (Ganoderma Extract) is (0.8-1.2):1. By using chrysanthemum extract in combination with ganoderma extract, the anti-aging effect of the mask is improved, fine lines on the skin are faded, the skin becomes firm and elastic, and immunity is improved.

[0021] The chrysanthemum extract and ganoderma lucidum extract are both from Jinhua Shouxiangu Pharmaceutical Co., Ltd.

[0022] As a preferred technical solution, the pharmaceutical grade polymer is selected from one or a combination of carbomer, xanthan gum, and scleroglucan; preferably, the pharmaceutical grade polymer is a combination of carbomer, xanthan gum, and scleroglucan; preferably, the mass ratio of carbomer, xanthan gum, and scleroglucan is (0.08-0.12): 0.05: 0.05, and further preferably, the carbomer is a benzene-free homopolymer, and the model of the carbomer is 980NF, 981NF, 974P NF, 5984EP; Preferably, the model of the carbomer is 981NF. During the research process, the applicant found that when a combination of carbomer, xanthan gum, and scleroglucan medical-grade polymers with a mass ratio of (0.08-0.12): 0.05: 0.05 is used, the various raw material components in the system can be well dispersed and compatible, effectively improving the stability of the system, solving the problem of easy flow of the mask essence during use, and ensuring product quality and safety.

[0023] Said 981NF was purchased from Lubrizol Corporation of the United States, the xanthan gum (CG-T) was purchased from Shanghai Hongjiu, and the scleroglucan (Bioeven HSG) was purchased from Guangzhou Yiwan.

[0024] The chelating agent is disodium EDTA, which chelates metal ions, maintains product stability, and has a certain antiseptic and synergistic effect.

[0025] Another aspect of the present invention provides a method for preparing a skin-lightening, soothing and moisturizing facial mask, comprising at least the following preparation steps:

[0026] (1) Mixing deionized water, plant extract, chelating agent, pharmaceutical grade polymer, alcohol moisturizer, hyaluronic acid composition, and skin conditioner by weight at 30-40° C. for 20-40 minutes to prepare a facial mask essence;

[0027] (2) Immerse the mask base fabric in the mask essence solution, control the temperature to 10-15° C., immerse for 4-6 minutes, and then place the immersed mask base fabric in a packaging bag and seal it.

[0028] Beneficial effects:

[0029] 1. The present invention provides a skin-lightening, soothing and moisturizing facial mask, which solves the problem that the facial mask essence is easy to flow when used; further, through formula preparation, the temperature resistance range of the facial mask essence is widened, solving the technical problem that the temperature resistance range of the facial mask essence is narrow.

[0030] 2. The use of alcohol moisturizers in combination with hyaluronic acid compositions can effectively improve the hydrating and moisturizing properties of the facial mask. When the mass ratio of the alcohol moisturizer to the hyaluronic acid composition is controlled to be (4-6): (0.18-0.25), the facial mask provided can effectively improve the skin's moisture absorption and water-locking abilities while having a long-lasting moisturizing effect, making the skin hydrated, delicate, soft and smooth. It is particularly suitable for women who need to keep their makeup on for a long time and for men who need to keep their makeup on before and after putting on makeup to ensure the makeup-lasting effect and rapid hydration and moisturizing after makeup. In particular, when the raw materials for preparing the hyaluronic acid composition also include hydrolyzed glycosaminoglycans, the alcohol moisturizer in a specific weight portion is added to significantly improve the stability of the hyaluronic acid compounds in the system while improving the skin-friendly properties of the facial mask, assisting the keratin in the skin's stratum corneum to bind moisture, and helping to promote the skin's absorption and utilization of the active ingredients in the plant extracts and the functional ingredients in the skin conditioners, so that the provided facial mask can achieve the effects of rapid hydration and long-lasting moisturizing and repairing.

[0031] 3. In the present application, skin conditioner A includes turmeric gel, sunflower stem cells, and kava extract UP, and the mass ratio of turmeric gel, sunflower stem cells, and kava extract UP is controlled to be (0.2-0.3): (0.05-0.12): (0.8-1.2). In combination with skin conditioner B, skin conditioner C and plant extracts in the system, it effectively balances skin moisture, enhances skin water circulation, and has a certain soothing and calming effect on the skin.

[0032] 4. When trehalose, ectoine, tranexamic acid and arginine are used in a mass ratio of (0.4-0.6): (0.03-0.06): (0.4-0.6): (0.08-0.12), the provided mask system has a higher stability, ensuring the hydrating, moisturizing and repairing effects of the mask. The reason for this may be that, at this weight ratio, trehalose and ectoine can exert their synergistic effect to the greatest extent, providing nonspecific protection for tranexamic acid, arginine and other active conditioning ingredients in the system, improving the stability of the effective ingredients in the system, broadening the temperature resistance range of the mask essence, ensuring product quality and extending the product's service life.

[0033] 5. The skin-lightening, soothing and moisturizing facial mask provided by the present invention mainly provides soothing and moisturizing effects, while taking into account anti-inflammatory and repair effects. The facial mask has high hydrating and moisturizing effects and breathable fit, is green and safe, and the dispersion compatibility and system stability of the components in the formula are good. It is especially suitable for hydrating and moisturizing before and after wearing makeup for a long time, which has high practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is the test result of the soothing effect of chrysanthemum extract.

[0035] Figure 2This is a test result of the soothing effect of Ganoderma lucidum extract. DETAILED DESCRIPTION

[0036] Example 1

[0037] Embodiment 1 of the present invention provides a skin-brightening, soothing and moisturizing facial mask, comprising a facial mask base fabric and a facial mask essence; in parts by weight, the raw materials for preparing the facial mask essence include: 89.8 parts of deionized water, 0.02 parts of plant extracts, 0.03 parts of chelating agents, 0.2 parts of medical-grade polymers, 5 parts of alcohol moisturizers, 0.25 parts of hyaluronic acid compositions, and 4.8 parts of skin conditioners.

[0038] The facial mask base fabric is a microfiber non-woven fabric, and the microfiber non-woven fabric is purchased from Shandong Metrell New Materials Co., Ltd.

[0039] In parts by weight, the alcohol moisturizer includes 2 parts of methylpropanediol, 2 parts of glyceryl polyether-26, and 1 part of HT-5688. The HT-5688 is from Shanghai Haotai.

[0040] The raw materials for preparing the hyaluronic acid composition include water, sodium hyaluronate cross-linked polymer, sodium hyaluronate, hydrolyzed sodium hyaluronate, hyaluronic acid, acetylated sodium hyaluronate, hydroxypropyltrimethylammonium chloride hyaluronic acid, 1,2-hexanediol, and caprylhydroxamic acid; the raw materials for preparing the hyaluronic acid composition also include hydrolyzed glycosaminoglycan. The brand of the hyaluronic acid composition is Tiansheng 7D-HA, which is purchased from Shandong Tiansheng Biotechnology Co., Ltd.

[0041] The mass ratio of the alcohol moisturizer to the hyaluronic acid composition is 5:0.25.

[0042] In parts by weight, the skin conditioner includes 1.35 parts of skin conditioner A, 1.15 parts of skin conditioner B, and 2 parts of skin conditioner C;

[0043] The skin conditioner A is a combination of turmeric gel, sunflower stem cells, and kava extract UP; the mass ratio of the turmeric gel, sunflower stem cells, and kava extract UP is 0.25:0.1:1.

[0044] The raw materials for preparing the turmeric gel include lactobacillus fermentation products, turmeric (CURCUMA LONGA) root extract, butylene glycol, and 1,2-hexanediol; the turmeric gel is Turmericgel turmeric gel, which comes from Shanghai Ronghai Biological.

[0045] The raw materials for preparing the sunflower stem cells include deionized water, glycerophosphoinositol choline salt, phenoxyethanol, and ethylhexylglycerol; the sunflower stem cells are sourced from Shanghai Tongyi Chemical.

[0046] The raw materials for preparing the kava extract UP include deionized water, Piper MethystICUM leaf / root / stem extract, and butylene glycol; the kava extract UP comes from Shanghai Boenkai.

[0047] The skin conditioner B comprises trehalose, ectoine, tranexamic acid and arginine; the mass ratio of trehalose, ectoine, tranexamic acid and arginine is 0.5:0.05:0.5:0.1.

[0048] The skin conditioner C includes betaine, panthenol, inositol, niacinamide, and acetyl glucosamine; the mass ratio of the betaine, panthenol, inositol, niacinamide, and acetyl glucosamine is 0.5:0.5:0.1:1:0.1.

[0049] The mass ratio of the skin conditioner A, the skin conditioner B and the skin conditioner C is 1.35:1.15:2.

[0050] The plant extract is a combination of chrysanthemum extract (Feverfew Extract) and ganoderma extract (Ganoderma Extract), and the mass ratio of the chrysanthemum extract (Feverfew Extract) and ganoderma extract (Ganoderma Extract) is 0.1:0.1.

[0051] The chrysanthemum extract was purchased from Xi'an Zhongkeda Biotechnology Co., Ltd., and the ganoderma lucidum extract was purchased from Changsha Shanghe Biotechnology Co., Ltd.

[0052] The pharmaceutical grade polymer is a combination of carbomer, xanthan gum, and scleroglucan; the mass ratio of the carbomer, xanthan gum, and scleroglucan is 0.1:0.05:0.05, and the model of the carbomer is 981NF.

[0053] Said 981NF was purchased from Lubrizol Corporation of the United States, the xanthan gum (CG-T) was purchased from Shanghai Hongjiu, and the scleroglucan (Bioeven HSG) was purchased from Guangzhou Yiwan.

[0054] The chelating agent is disodium EDTA.

[0055] On the other hand, Example 1 of the present invention provides a method for preparing a skin-lightening, soothing and moisturizing facial mask, comprising the following preparation steps.

[0056] (1) Mixing deionized water, plant extract, chelating agent, pharmaceutical grade polymer, alcohol moisturizer, hyaluronic acid composition, and skin conditioner by weight at 35° C. for 30 minutes to prepare a facial mask essence;

[0057] (2) Immerse the mask base fabric in the mask essence solution and control the temperature to be 12° C. for 5 minutes. Then, place the mask base fabric after the immersion treatment in a packaging bag and seal it.

[0058] Example 2

[0059] Example 2 of the present invention provides a skin-brightening, soothing and moisturizing facial mask and a preparation method thereof. The specific implementation manner is the same as that of Example 1, except that, in parts by weight, the raw materials for preparing the facial mask essence include: 85 parts of deionized water, 0.03 parts of plant extract, 0.03 parts of chelating agent, 0.2 parts of medical-grade polymer, 6 parts of alcohol moisturizer, 0.3 parts of hyaluronic acid composition, and 5 parts of skin conditioner.

[0060] Example 3

[0061] Example 3 of the present invention provides a skin-brightening, soothing and moisturizing facial mask and a preparation method thereof. The specific implementation manner is the same as that of Example 1, except that, in parts by weight, the raw materials for preparing the facial mask essence include: 92 parts of deionized water, 0.01 parts of plant extracts, 0.03 parts of chelating agents, 0.2 parts of medical-grade polymers, 4 parts of alcohol moisturizers, 0.2 parts of hyaluronic acid compositions, and 4.5 parts of skin conditioners.

[0062] Comparative Example 1

[0063] Comparative Example 1 of the present invention provides a skin-lightening, soothing and moisturizing facial mask, and its specific implementation manner is the same as that of Example 1, except that the mass ratio of the alcohol moisturizer and the hyaluronic acid composition is 10:0.1, and the hyaluronic acid composition includes hyaluronic acid and sodium hyaluronate.

[0064] Comparative Example 2

[0065] Comparative Example 2 of the present invention provides a skin-lightening, soothing and moisturizing facial mask, and its specific implementation manner is the same as that of Example 1, except that the skin conditioner A does not include kava extract UP.

[0066] Comparative Example 3

[0067] Comparative Example 3 of the present invention provides a skin-lightening, soothing and moisturizing facial mask, and its specific implementation manner is the same as that of Example 1, except that the mass ratio of the skin conditioner A, skin conditioner B and skin conditioner C is 1:1:8.

[0068] Comparative Example 4

[0069] Comparative Example 4 of the present invention provides a skin-lightening, soothing and moisturizing facial mask, the specific implementation of which is the same as that of Example 1, except that the pharmaceutical grade polymer is carbomer, and the model is 974P NF.

[0070] Performance Testing

[0071] The appearance, pH, heat resistance and cold resistance of the facial mask essence prepared in the examples and comparative examples were tested. The results are shown in Table 1.

[0072] (1) Heat resistance test: The mask essence is placed at (40±2)℃ for 24 hours. If the mask essence has no stratification, precipitation, odor or discoloration after returning to room temperature, the heat resistance of the mask essence is recorded as "qualified"; if the mask essence has stratification, precipitation, odor or discoloration, the heat resistance of the mask essence is recorded as "unqualified".

[0073] (2) Cold resistance test: Place the mask essence at (-5±2)℃ for 24 hours. If the mask essence does not stratify, precipitate, have odor or discoloration after returning to room temperature, the cold resistance of the mask essence is recorded as "qualified". If the mask essence has stratification, precipitation, odor or discoloration, the cold resistance of the mask essence is recorded as "unqualified".

[0074] Table 1

[0075]

[0076]

[0077] (3) The viscosity, pH and relative density of the composition provided in Example 1 were tested after being placed at 25° C. for 7 days, 40° C. for 7 days and −5° C. for 7 days. The results are shown in Table 2.

[0078] Table 2

[0079] Example 1 Small test 25℃，7d -5℃，7d 40℃，7d Viscosity (mpa·s) 267.4 185.9 192.6 PH 6.27 5.94 6.1 Relative density 1 1.01 1.01

[0080] (4) The viscosity, pH and relative density of the composition provided in Example 1 were tested after being placed at 50° C. for 0 days, 10 days, 20 days and 30 days, respectively. The results are shown in Table 3.

[0081] Table 3

[0082] Example 1 Pilot Day 0 10 days 20 days 30 days Viscosity (mpa·s) 267.4 / / / PH 6.27 6 6.27 6.08 Relative density 1 1.01 1.02 1.01

Claims

1. A skin-lightening, soothing and moisturizing facial mask, characterized in that: Including mask base cloth and mask essence; The raw materials for preparing the facial mask essence include at least 85-95 parts of deionized water, 0.01-0.03 parts of plant extract, 0.01-0.05 parts of chelating agent, 0.1-0.3 parts of medical grade polymer, 3-6 parts of alcohol moisturizer, 0.15-0.3 parts of hyaluronic acid composition, and 3-5 parts of skin conditioner by weight. In terms of weight, the skin conditioner includes 1-2 parts of skin conditioner A, 0.8-1.5 parts of skin conditioner B, and 1.8-2.2 parts of skin conditioner C; the skin conditioner B includes at least trehalose, ectoine, tranexamic acid, and arginine.

2. A skin-lightening, soothing and moisturizing facial mask according to claim 1, characterized in that: The material of the facial mask base fabric is one or a combination of cotton fiber, viscose fiber, Tencel, cuprammonium fiber, silk, ultrafine fiber, and chitosan fiber.

3. A skin-lightening, soothing and moisturizing facial mask according to claim 1, characterized in that: The alcohol moisturizer is selected from at least one of methylpropanediol, glyceryl polyether-26, isopentyl glycol, caprylyl glycol, 1,2-hexanediol, p-hydroxyacetophenone, dipropylene glycol, glycerol, and 1,3-butylene glycol.

4. A skin-lightening, soothing and moisturizing facial mask according to claim 3, characterized in that: The alcohol moisturizer includes methylpropanediol, glyceryl polyether-26, isopentyl glycol, caprylyl glycol, 1,2-hexanediol, p-hydroxyacetophenone, and dipropylene glycol.

5. The skin-lightening, soothing and moisturizing facial mask according to claim 1, characterized in that: The mass ratio of the alcohol moisturizer to the hyaluronic acid composition is (4-6): (0.18-0.25).

6. The skin-lightening, soothing and moisturizing facial mask according to claim 1, characterized in that: The mass ratio of the skin conditioner A, the skin conditioner B and the skin conditioner C is (1-1.5):(1-1.3):

2.

7. A skin-lightening, soothing and moisturizing facial mask according to claim 6, characterized in that: The skin conditioning agent C at least includes betaine, panthenol, inositol, niacinamide and acetyl glucosamine.

8. The skin-lightening, soothing and moisturizing facial mask according to claim 1, characterized in that: The plant extract is selected from at least one of chrysanthemum extract, ganoderma lucidum extract, astragalus membranaceus root extract and Centella asiatica extract.

9. The skin-lightening, soothing and moisturizing facial mask according to claim 1, characterized in that: The pharmaceutical grade polymer is selected from one or a combination of carbomer, xanthan gum, and scleroglucan.

10. A method for preparing a skin-lightening, soothing and moisturizing facial mask according to any one of claims 1 to 9, characterized in that: The method comprises at least the following preparation steps: (1) Mixing deionized water, plant extract, chelating agent, pharmaceutical grade polymer, alcohol moisturizer, hyaluronic acid composition, and skin conditioner by weight at 30-40° C. for 20-40 minutes to prepare a facial mask essence; (2) Immerse the mask base fabric in the mask essence solution, control the temperature to 10-15° C., immerse for 4-6 minutes, and then place the immersed mask base fabric in a packaging bag and seal it.

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