A moisturizing and hydrating composition and a method of preparing the same

Abstract

This invention relates to the field of skincare ingredient technology, specifically disclosing a moisturizing composition and its preparation method. The moisturizing composition comprises the following components in parts by weight: 5.7-14 parts of a complex plant extract; 4.108-6.512 parts of a humectant; and 79.488-90.192 parts of a solvent. The complex plant extract includes Bletilla striata root extract, Fagus sibirica bud extract, and Myrothamnus flabellifolia leaf / stem extract. This invention has the advantage of making the moisturizing effect of skincare products more lasting.

Description

Technical Field

[0001] This invention relates to the field of skin care product raw materials, and in particular to a moisturizing composition and its preparation method. Background Technology

[0002] In the cosmetics market, moisturizing and hydrating products are a basic need for consumers' daily skincare routine. Existing moisturizing skincare products mainly achieve their moisturizing effect by adding ingredients with strong hygroscopic properties. They primarily replenish skin moisture by absorbing moisture from the air, thus assisting the skin in absorbing moisture from the atmosphere.

[0003] However, such moisturizing effect requires the skin surface to be covered with a skin care product with strong hygroscopic ingredients. Once the skin care product on the skin surface is worn away, the moisturizing effect will be lost. Most moisturizing skin care products are only covered on the skin surface. In people's daily activities, skin care products are easily worn away, which will destroy the protective film formed by the skin care products. Therefore, the moisturizing effect of regular skin care products is not long-lasting and needs to be replenished frequently, which is difficult to meet the needs of consumers. Summary of the Invention

[0004] In order to make the moisturizing effect of skin care products last longer, this application provides a moisturizing composition and a method for preparing the same.

[0005] In a first aspect, this application provides a moisturizing and hydrating composition, which adopts the following technical solution: A moisturizing composition comprising the following components in parts by weight: 5.7-14 parts of compound plant extract; Moisturizer 4.108-6.512 parts; Solvent: 79.488-90.192 parts; The compound plant extracts include Bletilla striata root extract, European beech bud extract, and Myrothamnus flabellifolia leaf / stem extract.

[0006] By adopting the above technical solution, the compound plant extracts include Bletilla striata root extract, European beech bud extract, and Myrothamnus flabellifolia leaf / stem extract. Since Bletilla striata root extract, European beech bud extract, and Myrothamnus flabellifolia leaf / stem extract can be absorbed into the skin, the compound plant extracts can remain in the skin better when the skin care products on the skin surface are physically damaged, and continue to exert moisturizing effects, thus prolonging the moisturizing effect.

[0007] In addition, with the combined effects of Bletilla striata root extract, European beech bud extract, and Myrothamnus flabellifolia leaf / stem extract, it can effectively condition the skin and promote the repair of the skin barrier. By repairing the skin barrier, it can improve the skin's own water-locking ability, reduce the dependence on the moisturizing effect of hygroscopic raw materials, and at the same time, it can also have significant whitening and soothing effects, making the skin less prone to dryness due to allergies, effectively improving skin tone, and achieving a better overall skin care effect.

[0008] Preferably, the mass ratio of Bletilla striata root extract, Fagus sylvatica bud extract, and Myrothamnus flabellifolia leaf / stem extract in the compound plant extract is 3.5-5:2-8:0.2-1.

[0009] By adopting the above technical solution and specifically selecting the mass ratio of Bletilla striata root extract, European beech bud extract, and Myrothamnus flabellifolia leaf / stem extract, the synergistic effects of Bletilla striata root extract, European beech bud extract, and Myrothamnus flabellifolia leaf / stem extract are better when combined in a specific ratio, and the moisturizing, soothing, and whitening effects are more significant.

[0010] Preferably, the moisturizer is a compound of lactobacillus fermentation product, snail secretion filtrate, and polyglutamic acid.

[0011] By adopting the above technical solution and adding lactobacillus fermentation products, snail secretion filtrate, and polyglutamic acid, the effect of absorbing moisture from the air can be further improved. Moreover, lactobacillus fermentation products, snail secretion filtrate, and polyglutamic acid can all be absorbed by the skin. Even after the skin care products on the skin surface are physically damaged, they can still maintain their moisturizing effect, making the moisturizing effect more lasting.

[0012] Preferably, in the humectant, the mass ratio of lactobacillus fermentation product, snail secretion filtrate, and polyglutamic acid is 4-6:0.1-0.5:0.008-0.012.

[0013] By adopting the above technical solution and specifically selecting the mass ratio of lactobacillus fermentation products, snail secretion filtrate, and polyglutamic acid, the water-locking and moisturizing effect is improved.

[0014] Preferably, the solvent is a mixture of butanediol and deionized water.

[0015] By adopting the above technical solution and selecting butylene glycol and deionized water as solvents, the solubility of each component in the solvent is high, which can better exert synergistic effects, stabilize product quality, and improve skin care results.

[0016] Preferably, the mass ratio of butanediol to deionized water in the solvent is 5-20: 59.488-85.192.

[0017] By adopting the above technical solution and by specifically selecting the mass ratio of butanediol and deionized water, the product stability is improved.

[0018] Secondly, this application provides a method for preparing a moisturizing and hydrating composition, using the following technical solution: A method for preparing the above-mentioned moisturizing and hydrating composition includes the following steps: Step 1), mix Bletilla striata root extract, European beech bud extract, Myrothamnus flabellifolia leaf / stem extract, and deionized water to obtain premix A; Step 2), 1,2-dioleoyl-SN-glycerol-3-phosphoethanolamine, phosphatidylcholine and dichloromethane are mixed to obtain premix B; Step 3), mix premix A and premix B, heat and keep warm at 40-50℃, homogenize at 3000-5000r / min for 2-4h, take the aqueous phase to obtain the compound plant extract; Step 4) Concentrate and dry the compound plant extract to obtain the compound plant extract; Step 5) Mix the compound plant extract, moisturizer, and solvent evenly to obtain a moisturizing and hydrating composition.

[0019] By employing the above technical solution, and treating the extracts with 1,2-dioleoyl-SN-glycerol-3-phosphatidylethanolamine, phosphatidylcholine, and the extracts of Bletilla striata root, Fagus sibirica bud, and Myrothamnus flabellifolia leaf / stem, the lipophilic properties of each extract are improved. This allows the extracts to bind with the skin's oils, further enhancing their stability in the skin and making them less prone to loss. This results in a longer-lasting moisturizing effect and improved skin compatibility, making the extracts easier to absorb and resulting in more significant moisturizing, soothing, and whitening effects.

[0020] Preferably, in step 1), the mass ratio of Bletilla striata root extract, Fagus sylvatica bud extract, Myrothamnus flabellifolia leaf / stem extract, and deionized water is 3.5-5:2-8:0.2-1:20; in step 2), the mass ratio of 1,2-dioleoyl-SN-glycerol-3-phosphatidylethanolamine, phosphatidylcholine, and dichloromethane is 3-5:3-5:20; and in step 3), the mass ratio of premix A and premix B is 1:0.9-1.1.

[0021] By adopting the above technical solution and by specifically selecting the proportions of each component, the processing effects of 1,2-dioleoyl-SN-glycerol-3-phosphatidylethanolamine, phosphatidylcholine on Bletilla striata root extract, Fagus sylvatica bud extract, and Myrothamnus flabellifolia leaf / stem extract are improved.

[0022] Thirdly, this application provides an application of a moisturizing and hydrating composition, employing the following technical solution: An application of the above-mentioned moisturizing composition, wherein the moisturizing composition is added to a skin care product formulation to prepare a skin care product with moisturizing effect, wherein the mass content of the moisturizing composition in the skin care product is 1-2%.

[0023] By adopting the above technical solution, the resulting skin care products have long-lasting moisturizing effects, as well as good whitening and soothing effects, achieving multiple skin care benefits and better skin care results.

[0024] In summary, this application has the following beneficial effects: 1. Because this application utilizes a compound plant extract including Bletilla striata root extract, Fagus sylvatica bud extract, and Myrothamnus flabellifolia leaf / stem extract, these extracts can be absorbed into the skin. This allows the compound plant extracts to remain in the skin more effectively when skincare products on the surface are physically damaged, continuing to exert their moisturizing effects and prolonging the moisturizing effect. Furthermore, it effectively conditions the skin, promoting skin barrier repair. By repairing the skin barrier, it enhances the skin's own water-locking ability, reducing dependence on the moisturizing effects of hygroscopic ingredients. Simultaneously, it also provides significant whitening and soothing effects, making the skin less prone to dryness and allergies, effectively improving skin tone, and achieving a better overall skincare effect.

[0025] 2. In this application, the preferred method is to select the specific mass ratio of Bletilla striata root extract, Fagus sylvatica bud extract, and Myrothamnus flabellifolia leaf / stem extract, so that the synergistic effects of Bletilla striata root extract, Fagus sylvatica bud extract, and Myrothamnus flabellifolia leaf / stem extract are combined in a specific ratio, resulting in more significant moisturizing, soothing, and whitening effects.

[0026] 3. The method of this application, by treating Bletilla striata root extract, Fagus sibiricum bud extract, and Myrothamnus flavescentis leaf / stem extract with 1,2-dioleoyl-SN-glycerol-3-phosphatidylethanolamine and phosphatidylcholine, improves the lipophilic properties of each extract, thereby enabling each extract to bind with the skin's oils, further enhancing the stability of the extract in the skin, making the extract less prone to loss, thus making the moisturizing effect more lasting, and improving the compatibility of the extract with the skin, making the extract easier to be absorbed by the skin, and making the moisturizing, soothing, and whitening effects more significant. Detailed Implementation

[0027] The present application will be further described in detail below with reference to the embodiments.

[0028] Example 1

[0029] A moisturizing and hydrating composition, the preparation method of which includes the following steps: Step 1): Add 3.5 kg of Bletilla striata root extract, 2 kg of Fagus bud extract, 0.2 kg of Myrothamnus flabellifolia leaf / stem extract, and 20 kg of deionized water into a mixing vessel A. Stir at 60 r / min for 10 min to obtain premix A.

[0030] Step 2): Add 3 kg of 1,2-dioleoyl-SN-glycerol-3-phosphatidylethanolamine, 3 kg of phosphatidylcholine, and 20 kg of dichloromethane to a stirred tank B. Stir for 10 min at a speed of 60 r / min to obtain premix B.

[0031] Step 3) Add 10 kg of premix A and 9 kg of premix B into the stirred tank C, stir at 60 r / min and heat to 40°C, stop stirring, start homogenization, keep at 40°C, homogenize at 3000 r / min for 2 h, stop homogenization, pour into the separatory tank, take the aqueous phase, and obtain the compound plant extract.

[0032] Step 4) Concentrate the compound plant extract by rotary evaporation at 50°C until it becomes a paste. Then dry it at room temperature until the water content is less than 1%. Grind the paste and pass it through a 40-mesh sieve to obtain the compound plant extract.

[0033] Step 5): Add 0.57 kg of compound plant extract, 0.4 kg of lactobacillus fermentation product, 0.01 kg of snail secretion filtrate, 0.0008 kg of polyglutamic acid, 0.5 kg of butylene glycol, and 8.5192 kg of deionized water into the mixing tank D. Stir at 120 r / min for 10 min to obtain a moisturizing and hydrating composition.

[0034] Bletilla striata root extract was purchased from Guangzhou Ruiran Biotechnology Co., Ltd., and is water-soluble.

[0035] European beech bud extract was purchased from Suzhou Nakang Biotechnology Co., Ltd., and is water-soluble.

[0036] The leaf / stem extract of Myrothamnus flabellifolia was purchased from Guangzhou Ruiran Biotechnology Co., Ltd., and is water-soluble.

[0037] 1,2-Dioleoyl-SN-glycerol-3-phosphoethanolamine was purchased from Wuhan Jixin Yibang Biotechnology Co., Ltd.

[0038] Phosphatidylcholine was purchased from Xi'an Musen Bioengineering Co., Ltd.

[0039] The dichloromethane was sourced from commercially available sources and contained 99.9% of the active ingredient.

[0040] The lactobacillus fermentation products were purchased from Guangzhou Ruiran Biotechnology Co., Ltd.

[0041] The snail secretion filtrate was purchased from Guangzhou Xufan Trading Co., Ltd.

[0042] Polyglutamic acid was purchased from Guangzhou Wanfeng Daily Chemical Technology Co., Ltd.

[0043] Butylene glycol was purchased from Shandong Haike Xinyuan Materials Technology Co., Ltd.

[0044] Example 2

[0045] A moisturizing and hydrating composition, the preparation method of which includes the following steps: Step 1): Add 4.5 kg of Bletilla striata root extract, 6 kg of Fagus sylvatica bud extract, 0.6 kg of Myrothamnus flabellifolia leaf / stem extract, and 20 kg of deionized water into a mixing vessel A. Stir at 60 r / min for 12 min to obtain premix A.

[0046] Step 2): Add 4 kg of 1,2-dioleoyl-SN-glycerol-3-phosphatidylethanolamine, 4 kg of phosphatidylcholine, and 20 kg of dichloromethane to a stirred tank B. Stir for 12 min at a speed of 60 r / min to obtain premix B.

[0047] Step 3) Add 10 kg of premix A and 10 kg of premix B into the stirred tank C, stir at 60 r / min and heat to 45°C, stop stirring, start homogenization, keep at 45°C, homogenize at 4000 r / min for 3 h, stop homogenization, pour into the separatory tank, take the aqueous phase, and obtain the compound plant extract.

[0048] Step 4) Concentrate the compound plant extract by rotary evaporation at 50°C until it becomes a paste. Then dry it at room temperature until the water content is less than 1%. Grind the paste and pass it through a 40-mesh sieve to obtain the compound plant extract.

[0049] Step 5): Add 1.11 kg of compound plant extract, 0.5 kg of lactobacillus fermentation product, 0.03 kg of snail secretion filtrate, 0.001 kg of polyglutamic acid, 1 kg of butanediol, and 7.359 kg of deionized water into the mixing tank D. Stir at 120 r / min for 12 min to obtain a moisturizing and hydrating composition.

[0050] Bletilla striata root extract was purchased from Guangzhou Ruiran Biotechnology Co., Ltd., and is water-soluble.

[0051] European beech bud extract was purchased from Suzhou Nakang Biotechnology Co., Ltd., and is water-soluble.

[0052] The leaf / stem extract of Myrothamnus flabellifolia was purchased from Guangzhou Ruiran Biotechnology Co., Ltd., and is water-soluble.

[0053] 1,2-Dioleoyl-SN-glycerol-3-phosphoethanolamine was purchased from Wuhan Jixin Yibang Biotechnology Co., Ltd.

[0054] Phosphatidylcholine was purchased from Xi'an Musen Bioengineering Co., Ltd.

[0055] The dichloromethane was sourced from commercially available sources and contained 99.9% of the active ingredient.

[0056] The lactobacillus fermentation products were purchased from Guangzhou Ruiran Biotechnology Co., Ltd.

[0057] The snail secretion filtrate was purchased from Guangzhou Xufan Trading Co., Ltd.

[0058] Polyglutamic acid was purchased from Guangzhou Wanfeng Daily Chemical Technology Co., Ltd.

[0059] Butylene glycol was purchased from Shandong Haike Xinyuan Materials Technology Co., Ltd.

[0060] Example 3

[0061] A moisturizing and hydrating composition, the preparation method of which includes the following steps: Step 1): Add 5 kg of Bletilla striata root extract, 8 kg of Fagus sylvatica bud extract, 1 kg of Myrothamnus flabellifolia leaf / stem extract, and 20 kg of deionized water into a mixing vessel A. Stir at 60 r / min for 15 min to obtain premix A.

[0062] Step 2): Add 5 kg of 1,2-dioleoyl-SN-glycerol-3-phosphoethanolamine, 5 kg of phosphatidylcholine, and 20 kg of dichloromethane to a stirred tank B. Stir for 15 min at a speed of 60 r / min to obtain premix B.

[0063] Step 3) Add 10 kg of premix A and 11 kg of premix B into the stirred tank C, stir at 60 r / min and heat to 50°C, stop stirring, start homogenization, keep at 50°C, homogenize at 5000 r / min for 4 h, stop homogenization, pour into the separatory tank, take the aqueous phase, and obtain the compound plant extract.

[0064] Step 4) Concentrate the compound plant extract by rotary evaporation at 50°C until it becomes a paste. Then dry it at room temperature until the water content is less than 1%. Grind the paste and pass it through a 40-mesh sieve to obtain the compound plant extract.

[0065] Step 5): Add 1.4 kg of compound plant extract, 0.6 kg of lactobacillus fermentation product, 0.05 kg of snail secretion filtrate, 0.0012 kg of polyglutamic acid, 2 kg of butylene glycol, and 5.94882 kg of deionized water into the mixing tank D. Stir at 120 r / min for 15 min to obtain a moisturizing and hydrating composition.

[0066] Bletilla striata root extract was purchased from Guangzhou Ruiran Biotechnology Co., Ltd., and is water-soluble.

[0067] European beech bud extract was purchased from Suzhou Nakang Biotechnology Co., Ltd., and is water-soluble.

[0068] The leaf / stem extract of Myrothamnus flabellifolia was purchased from Guangzhou Ruiran Biotechnology Co., Ltd., and is water-soluble.

[0069] 1,2-Dioleoyl-SN-glycerol-3-phosphoethanolamine was purchased from Wuhan Jixin Yibang Biotechnology Co., Ltd.

[0070] Phosphatidylcholine was purchased from Xi'an Musen Bioengineering Co., Ltd.

[0071] The dichloromethane was sourced from commercially available sources and contained 99.9% of the active ingredient.

[0072] The lactobacillus fermentation products were purchased from Guangzhou Ruiran Biotechnology Co., Ltd.

[0073] The snail secretion filtrate was purchased from Guangzhou Xufan Trading Co., Ltd.

[0074] Polyglutamic acid was purchased from Guangzhou Wanfeng Daily Chemical Technology Co., Ltd.

[0075] Butylene glycol was purchased from Shandong Haike Xinyuan Materials Technology Co., Ltd.

[0076] Comparative Example 1 A moisturizing composition, differing from Example 2 only in that: Centella asiatica extract was used to replace Bletilla striata root extract in an equal amount.

[0077] Centella asiatica extract was purchased from Zhengzhou Kema Biotechnology Co., Ltd.

[0078] Comparative Example 2 A moisturizing composition, differing from Example 2 only in that: Oat β-glucan was used to replace European beech bud extract in an equal amount.

[0079] Oat β-glucan was purchased from Sichuan Sailikang Biotechnology Co., Ltd.

[0080] Comparative Example 3 A moisturizing composition, differing from Example 2 only in that: The extract of Myrothamnus fruticosa leaves / stems was replaced with an equal amount of the extract of the dark black seaweed.

[0081] The extract of the dark black seaweed was purchased from Guangzhou Feike Trading Co., Ltd.

[0082] Comparative Example 4 A moisturizing composition, differing from Example 2 only in that: The extracts were replaced with an equal amount of Centella asiatica root extract, an equal amount of oat β-glucan, and an equal amount of Myrothamnus flavescentis leaf / stem extract.

[0083] Centella asiatica extract was purchased from Zhengzhou Kema Biotechnology Co., Ltd.

[0084] Oat β-glucan was purchased from Sichuan Sailikang Biotechnology Co., Ltd.

[0085] The extract of the dark black seaweed was purchased from Guangzhou Feike Trading Co., Ltd.

[0086] Comparative Example 5 A moisturizing composition, differing from Example 2 only in that: The preparation method of the moisturizing and hydrating composition is as follows: Add 0.45 kg of Bletilla striata root extract, 0.6 kg of Fagus bud extract, 0.06 kg of Myrothamnus flabellifolia leaf / stem extract, 0.5 kg of Lactobacillus fermentation product, 0.03 kg of snail secretion filtrate, 0.001 kg of polyglutamic acid, 1 kg of butylene glycol, and 7.359 kg of deionized water to a stirred tank D and stir at 120 r / min for 12 min to obtain a moisturizing and hydrating composition.

[0087] Bletilla striata root extract was purchased from Guangzhou Ruiran Biotechnology Co., Ltd., and is water-soluble.

[0088] European beech bud extract was purchased from Suzhou Nakang Biotechnology Co., Ltd., and is water-soluble.

[0089] The leaf / stem extract of Myrothamnus flabellifolia was purchased from Guangzhou Ruiran Biotechnology Co., Ltd., and is water-soluble.

[0090] The lactobacillus fermentation products were purchased from Guangzhou Ruiran Biotechnology Co., Ltd.

[0091] The snail secretion filtrate was purchased from Guangzhou Xufan Trading Co., Ltd.

[0092] Polyglutamic acid was purchased from Guangzhou Wanfeng Daily Chemical Technology Co., Ltd.

[0093] Butylene glycol was purchased from Shandong Haike Xinyuan Materials Technology Co., Ltd.

[0094] Experiment 1 The moisturizing and hydrating compositions of each embodiment and comparative example were prepared into test samples, as follows: Take 2g of moisturizing and hydrating composition and 98g of deionized water, mix them evenly, and obtain the test sample.

[0095] A number of volunteers were recruited and randomly divided into groups of ten. Each group used the test samples prepared in the various embodiments and comparative examples, once in the morning and once in the evening, for 30 consecutive days.

[0096] Before starting the experiment, we conducted a skin moisture loss test 4 hours prior to skincare, as follows: Volunteers cleansed their faces with water and disposable face towels, then dried them with a clean towel. The moisture content of the skin on the forehead was measured using a Corneometer CM825 and recorded as the initial moisture content before skincare. After 4 hours of free activity, the moisture content of the forehead was measured again using a Corneometer CM825 and recorded as the moisture content 4 hours before skincare. The moisture content was then calculated using the following formula: Skin moisture loss in the 4 hours before skincare = initial moisture content before skincare - moisture content in the 4 hours before skincare.

[0097] On day 31, a skin moisture loss test was conducted after 30 days of skincare, as detailed below: Volunteers cleansed their faces with water and disposable face towels, then dried them with a clean towel. The moisture content of the forehead skin was measured using a Corneometer CM825, and recorded as the initial moisture content after 30 days of skincare. After 4 hours of free activity, the moisture content of the forehead skin was measured again using a Corneometer CM825, and recorded as the moisture content after 4 hours of 30 days of skincare. The moisture content was calculated using the following formula: Skin moisture loss over 30 days and 4 hours = initial moisture content after 30 days of skincare - moisture content after 30 days and 4 hours of skincare.

[0098] The moisturizing durability of the test samples was tested on day 32, as follows: Volunteers cleansed their faces with water and disposable face towels, then dried with a clean towel. They then applied 5ml of the test sample evenly to their faces, massaged for 3 minutes, and waited 10 minutes. The moisture content of the forehead was measured using a Corneometer CM825 and recorded as the initial moisture content after makeup application. After 8 hours of free activity, the moisture content of the forehead was measured again using a Corneometer CM825 and recorded as the moisture content after 8 hours of makeup application. The moisture content was calculated using the following formula: Skin moisture loss after 8 hours of makeup application = initial moisture content upon makeup application - moisture content after 8 hours of makeup application.

[0099] Experiment 2 The moisturizing and hydrating compositions of each embodiment and comparative example were prepared into test samples, as follows: Take 2g of moisturizing and hydrating composition and 98g of deionized water, mix them evenly, and obtain the test sample.

[0100] According to T / JSRH 003-2023 "Test of Anti-allergic Activity of Cosmetic Raw Materials - Hyaluronidase Inhibition Method", the hyaluronidase inhibition rate (%) of the test samples prepared from the moisturizing and hydrating compositions of each example and comparative example was tested.

[0101] Experiment 3 The moisturizing and hydrating compositions of each embodiment and comparative example were prepared into test samples, as follows: Take 2g of moisturizing and hydrating composition and 98g of deionized water, mix them evenly, and obtain the test sample.

[0102] The tyrosinase inhibition rate (%) of the test samples prepared from the moisturizing and hydrating compositions of each example and comparative example was determined according to T / GDCA 006—2021 "Test Method for Inhibition of Tyrosinase Activity by Cosmetic Raw Materials (In Vitro Method)".

[0103] The detailed experimental data for Experiments 1-3 are shown in Table 1.

[0104] Table 1

[0105] As shown in Table 1, each embodiment has a better effect on promoting skin barrier repair, can improve the skin's own water-locking ability, and has better whitening and soothing effects. In the process of use, the embodiments have a longer-lasting moisturizing effect.

[0106] It is evident that the combination of Bletilla striata root extract, European beech bud extract, and Myrothamnus flabellifolia leaf / stem extract can achieve better whitening, soothing, and skin barrier repair effects.

[0107] In addition, treatment with 1,2-dioleoyl-SN-glycerol-3-phosphatidylethanolamine, phosphatidylcholine, Bletilla striata root extract, Fagus bud extract, and Myrothamnus flabellifolia leaf / stem extract can enhance the skin repair effect and prolong the moisturizing effect of the composition.

[0108] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A moisturizing and hydrating composition, characterized in that: The components include the following parts by mass: 5.7-14 parts of compound plant extract; Moisturizer 4.108-6.512 parts; Solvent: 79.488-90.192 parts; The compound plant extracts include Bletilla striata root extract, European beech bud extract, and Myrothamnus flabellifolia leaf / stem extract.

2. The moisturizing composition according to claim 1, characterized in that: In the compound plant extract, the mass ratio of Bletilla striata root extract, Fagus sylvatica bud extract, and Myrothamnus flabellifolia leaf / stem extract is 3.5-5:2-8:0.2-1.

3. The moisturizing composition according to claim 1, characterized in that: The moisturizer is a compound of lactobacillus fermentation products, snail secretion filtrate, and polyglutamic acid.

4. The moisturizing composition according to claim 3, characterized in that: In the humectant, the mass ratio of lactobacillus fermentation product, snail secretion filtrate, and polyglutamic acid is 4-6:0.1-0.5:0.008-0.

012.

5. The moisturizing composition according to claim 1, characterized in that: The solvent is a mixture of butanediol and deionized water.

6. The moisturizing composition according to claim 5, characterized in that: In the solvent, the mass ratio of butanediol to deionized water is 5-20: 59.488-85.

192.

7. A method for preparing a moisturizing and hydrating composition according to any one of claims 1-6, characterized in that: Includes the following steps: Step 1), mix Bletilla striata root extract, European beech bud extract, Myrothamnus flabellifolia leaf / stem extract and deionized water to obtain premix A; Step 2), 1,2-dioleoyl-SN-glycerol-3-phosphoethanolamine, phosphatidylcholine and dichloromethane are mixed to obtain premix B; Step 3), mix premix A and premix B, heat and keep warm at 40-50℃, homogenize at 3000-5000r / min for 2-4h, take the aqueous phase to obtain the compound plant extract; Step 4) Concentrate and dry the compound plant extract to obtain the compound plant extract; Step 5) Mix the compound plant extract, moisturizer, and solvent evenly to obtain a moisturizing and hydrating composition.

8. The method for preparing a moisturizing and hydrating composition according to claim 7, characterized in that: In step 1), the mass ratio of Bletilla striata root extract, Fagus sylvatica bud extract, Myrothamnus flabellifolia leaf / stem extract, and deionized water is 3.5-5:2-8:0.2-1:

20. In step 2), the mass ratio of 1,2-dioleoyl-SN-glycerol-3-phosphatidylethanolamine, phosphatidylcholine, and dichloromethane is 3-5:3-5:

20. In step 3), the mass ratio of premix A and premix B is 1:0.9-1.

1.

9. An application of the moisturizing composition according to any one of claims 1-6, characterized in that: The moisturizing and hydrating composition is added to a skincare product formulation to prepare a skincare product with moisturizing and hydrating effects, and the mass content of the moisturizing and hydrating composition in the skincare product is 1-2%.

Images