Essence composition for promoting generation of sebum film and preparation method thereof

Abstract

The invention relates to an essence composition for promoting generation of a sebum film and a preparation method of the essence composition. The essence composition for promoting the generation of the sebum film comprises the following components in parts by mass: 1-3 parts of squalane, 6-12 parts of a plant extract, 0.5-3 parts of panthenol, 2-4 parts of nicotinamide, 3-8 parts of an acrylate polymer and 60-80 parts of a base material, wherein the acrylate polymer is obtained by reaction of hydroxyethyl acrylate, polypropylene glycol acrylate and sodium acrylate. The compatibility among the components is improved, the stability of the composition is improved, meanwhile, the effects of repairing the skin, promoting the growth of a sebum film and improving the water-oil balance of the skin can be better achieved, the problems in the prior art are solved, and the composition has important significance on development of the field.

Description

Technical Field

[0001] The invention relates to the technical field of cosmetics, and in particular to an essence composition for promoting the formation of sebum film and a preparation method thereof. Background Art

[0002] The sebum membrane is a natural protective layer covering the surface of the skin, composed of oil secreted by sebaceous glands, sweat secreted by sweat glands, and lipids produced by keratinocyte metabolism. This protective membrane has three major functions: first, its weakly acidic environment of 4.5-6.5 can inhibit the reproduction of harmful bacteria; second, the lipid components such as triglycerides contained in the sebum membrane can lock in moisture and prevent transepidermal water loss; finally, the sebum membrane can also neutralize external alkaline stimuli and block the penetration of pollutants. However, due to factors such as excessive cleaning, environmental stress, external trauma or hormone imbalance, the sebum membrane is easily damaged, which will lead to a decrease in the skin barrier function and cause problems such as dryness, sensitivity, and redness.

[0003] Existing skin care products mainly repair sebum membrane damage through two ways: bionic sebum membrane supplementation and lipid synthesis promotion. Existing technology CN111557874A-A bionic, camellia extract-containing skin barrier repair composition and application, using squalane, ceramide, fatty acids and other bionic lipid components similar to human sebum to simulate the natural sebum membrane structure, which can enhance the barrier function; CN115869219A-A method for encapsulating essential oil skin care products with liposomes, using nano-liposome encapsulation technology to encapsulate active ingredients, which can improve the transdermal absorption rate of active ingredients and promote skin repair; There are also many technologies that combine plant anti-inflammatory ingredients such as purslane and witch hazel to reduce skin oxidative stress and accelerate sebum membrane regeneration.

[0004] The above technical solution compounds substances with different functions and achieves a certain effect of repairing the skin and promoting the regeneration of the sebum membrane. However, it is costly to add a large amount of active ingredients to the essence product, and the operation procedures such as nano-lipid coating of the active ingredients are complicated. At the same time, the stability of multiple active ingredients in the composition is insufficient, and problems such as failure and uneven distribution may occur, which seriously affect the function of the components and cannot guarantee a long-lasting, stable and efficient skin care effect.

[0005] Therefore, it is urgent to develop a new technical solution to provide an essence composition product with better performance and reliability to solve the problems existing in the prior art. Summary of the invention

[0006] Based on this, the present invention provides an essence composition for promoting the formation of sebum membrane and a preparation method thereof. The present invention uses squalane, plant extracts, panthenol and acrylic polymers to compound substances, thereby improving the compatibility between components and the stability of the composition. At the same time, it can better play the role of repairing skin, promoting the growth of sebum membrane and improving the water-oil balance of skin, solving the problems in the prior art and having important significance for the development of this field.

[0007] One object of the present invention is to provide an essence composition for promoting the formation of sebum film, wherein the essence composition for promoting the formation of sebum film comprises the following components in parts by weight: 1-3 parts squalane 6-12 parts of plant extract Panthenol 0.5-3 parts 2-4 parts of niacinamide 3-8 parts of acrylic polymer 60-80 parts of base material; in, The acrylic ester polymer is obtained by reacting hydroxyethyl acrylate, polypropylene glycol acrylate and sodium acrylate.

[0008] Furthermore, the plant extracts include shea butter (CAS No. 91080-23-8), rosehip oil (CAS No. 84603-93-0) and jojoba oil (CAS No. 61789-91-1).

[0009] Furthermore, the mass ratio of shea butter, rosehip oil and jojoba oil is (1-4):(0.5-3):(1-5).

[0010] Furthermore, the base material is selected from one or more of water, oil, thickener, preservative, antioxidant, emulsifier and moisturizer.

[0011] Furthermore, the oil is selected from one or more of polydimethylsiloxane and caprylic / capric triglyceride.

[0012] Furthermore, the polypropylene glycol acrylate is one or both of polypropylene glycol di(meth)acrylate and polypropylene glycol mono(meth)acrylate.

[0013] Furthermore, the mass ratio of hydroxyethyl acrylate, polypropylene glycol acrylate and sodium acrylate is (2-5):(3-6):(1-3).

[0014] Another object of the present invention is to provide a method for preparing the above-mentioned essence composition for promoting the formation of sebum film, wherein the method for preparing the essence composition for promoting the formation of sebum film comprises the following steps: S1, mixing hydroxyethyl acrylate, polypropylene glycol acrylate, sodium acrylate, a crosslinking agent and an initiator, and heating the mixture under the protection of an inert gas to react to obtain an acrylate polymer; S2, adding squalane and acrylic polymer to the base material, heating and stirring; S3. After cooling, add the plant extract, panthenol and niacinamide, and stir evenly to obtain the essence composition for promoting the formation of sebum film.

[0015] Furthermore, in step S1, the temperature of the heating reaction is 50-100°C.

[0016] Furthermore, in step S2, the temperature of the heating and stirring is 40-70°C.

[0017] The present invention has the following beneficial effects: The present invention provides an essence composition for promoting the formation of sebum membrane, which is compounded with squalane, shea butter, rosehip oil, jojoba oil, panthenol, niacinamide, acrylic polymer and base material. The multiple active ingredients of the present invention can simulate the sebum structure and supplement lipids, thereby strengthening the barrier function, and can also promote sebum synthesis and achieve regeneration effect. Therefore, different active ingredients synergistically enhance the effect, promote the repair of sebum membrane from multiple angles, and effectively improve and regulate the health of the skin.

[0018] The acrylic acid ester polymer of the present invention is obtained by the reaction of hydroxyethyl acrylate, polypropylene glycol acrylate and sodium acrylate, and has a hydrophilic acrylate and hydroxyl group in its structure, and also has a hydrophobic propoxy polyether structure, so it has a certain emulsification and dispersion effect. On the one hand, it can improve the uniformity of the essence composition, make the active ingredients uniformly suspended and dispersed, and the moisturizing effect on the skin is more stable and lasting; on the other hand, the polymer can also adjust the oil-water balance of the skin through the hydrophilic and hydrophobic groups, further improve the moisturizing function under the nourishing effect of the active ingredients and the base material, and achieve a good skin care effect. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the technical solution of the present invention, the following examples are listed. Unless otherwise stated, the raw materials, reactions and post-treatment methods shown in the examples are common raw materials on the market and technical methods well known to those skilled in the art.

[0020] The words "preferred", "preferably", "more preferably", etc. in the present invention refer to embodiments of the present invention that can provide certain beneficial effects in certain circumstances. However, other embodiments may also be preferred under the same circumstances or other circumstances. In addition, the description of one or more preferred embodiments does not imply that other embodiments are not applicable, nor is it intended to exclude other embodiments from the scope of the present invention.

[0021] It should be understood that, except in any operating examples, or where otherwise indicated, all numbers indicating, for example, the amounts of ingredients used in the specification and claims should be understood to be modified in all cases by the term "about". Therefore, unless indicated to the contrary, the numerical parameters set forth in the following specification and the appended claims are approximate values ​​that vary depending on the desired properties to be obtained by the present invention.

[0022] The polypropylene glycol monomethacrylate M in the embodiment of the present invention n ≈375.

[0023] The polypropylene glycol dimethacrylate M in the embodiment of the present invention n ≈560.

[0024] The emulsifier OP-10 in the embodiment of the present invention, dodecylphenol polyoxyethylene ether, was purchased from Aladdin.

[0025] The base material in the embodiment of the present invention includes the following components in parts by weight: 88 parts of purified water, 3 parts of 1,3-butylene glycol, 1 part of sodium polyacrylate (brand name: Polyhe Bio), 0.5 parts of p-hydroxyacetophenone, 0.5 parts of tocopheryl acetate, 2 parts of glyceryl stearate and 5 parts of caprylic / capric triglyceride (brand name: KLK GTCC).

[0026] Example 1 A serum composition for promoting the formation of sebum membrane, the serum composition for promoting the formation of sebum membrane comprising the following components in parts by weight: 1.5 parts of squalane 3 parts shea butter 2 parts rosehip oil 4 parts jojoba oil Panthenol 0.8 parts 2 parts niacinamide 6 parts of acrylic polymer 60 parts of base material; The preparation method of the essence composition for promoting the formation of sebum film comprises the following steps: S1. Using water as solvent, add hydroxyethyl acrylate, polypropylene glycol monomethacrylate, sodium acrylate, N,N'-methylenebisacrylamide, emulsifier OP-10 and potassium persulfate in a mass ratio of 3:4:2:0.2:0.1:0.1, react at 70°C for 4 h under nitrogen protection, filter and dry to obtain an acrylic polymer; S2. Add squalane and acrylic polymer to the base material according to the above mass fractions, and stir at 50°C for 5 min; S3. After cooling, add shea butter, rosehip oil, jojoba oil, panthenol and niacinamide, stir evenly, and obtain the essence composition for promoting the formation of sebum film.

[0027] Example 2 A serum composition for promoting the formation of sebum membrane, the serum composition for promoting the formation of sebum membrane comprising the following components in parts by weight: 2 parts squalane 3 parts shea butter 3 parts rosehip oil 4 parts jojoba oil 1 part panthenol 2.5 parts of niacinamide Acrylate polymer 6.5 parts 65 parts of base material; The preparation method of the essence composition for promoting the formation of sebum film comprises the following steps: S1. Using water as solvent, add hydroxyethyl acrylate, polypropylene glycol monomethacrylate, polypropylene glycol dimethacrylate, sodium acrylate, N,N'-methylenebisacrylamide, emulsifier OP-10 and potassium persulfate in a mass ratio of 3:3:1:2:0.2:0.1:0.1, react at 70°C for 4 h under nitrogen protection, filter and dry to obtain an acrylic polymer; S2. Add squalane and acrylic polymer to the base material according to the above mass fractions, and stir at 50°C for 5 min; S3. After cooling, add shea butter, rosehip oil, jojoba oil, panthenol and niacinamide, stir evenly, and obtain the essence composition for promoting the formation of sebum film.

[0028] Example 3 A serum composition for promoting the formation of sebum membrane, the serum composition for promoting the formation of sebum membrane comprising the following components in parts by weight: 2.3 parts of squalane 3.5 parts shea butter 3 parts rosehip oil 5 parts jojoba oil 1.2 parts panthenol 2.5 parts of niacinamide 8 parts of acrylic polymer 75 parts of base material; The preparation method of the essence composition for promoting the formation of sebum film comprises the following steps: S1. Using water as solvent, add hydroxyethyl acrylate, polypropylene glycol monomethacrylate, sodium acrylate, N,N'-methylenebisacrylamide, emulsifier OP-10 and potassium persulfate in a mass ratio of 3:4:2:0.2:0.1:0.1, react at 70°C for 4 h under nitrogen protection, filter and dry to obtain an acrylic polymer; S2. Add squalane and acrylic polymer to the base material according to the above mass fractions, and stir at 50°C for 5 min; S3. After cooling, add shea butter, rosehip oil, jojoba oil, panthenol and niacinamide, stir evenly, and obtain the essence composition for promoting the formation of sebum film.

[0029] Comparative Example A serum composition, the difference between this comparative example and Example 1 is that step S1 is deleted, sodium polyacrylate is used to replace the acrylic acid ester polymer, and other ingredients and preparation methods are the same as those in Example 1.

[0030] Test Example 1 Tested for soothing and regenerating effects.

[0031] Test method: 80 volunteers aged 18-50 years who had sensitive skin, erythema and other skin injuries due to laser, minimally invasive surgery and the like were selected and randomly divided into 20 people / group. Each group used the essence composition prepared in Examples 1-3 and the comparative example, and applied 2 g of the sample to the damaged skin in the morning and evening every day for 30 days.

[0032] The judging criteria are: Symptoms (itching, erythema, edema, exudation, dryness and scaling, stinging, etc.) were scored as 0, 1, 2, and 3 points according to the levels of none, mild, moderate, and severe; After the test, A reduction of symptom score of ≥95% was considered as recovery; A reduction of 70-95% (including 70%) in symptom scores was considered markedly effective; A reduction of 30-70% (including 30%) in symptom scores is considered effective; If the symptom score decreases by less than 30%, it is considered ineffective.

[0033] The test results are shown in Table 1.

[0034] Table 1 Test results According to Table 1, it can be concluded that the essence composition for promoting the formation of sebum membrane prepared in the embodiment of the present invention can effectively improve the sensitive and damaged state of the skin, promote the repair and regeneration of the sebum membrane, and no adverse reactions such as allergies occur, thereby achieving an improvement in the health of the skin. We also found that the technical effect of Example 2 is better than that of other embodiments. This may be due to the use of polypropylene glycol dimethacrylate as a polymerization monomer, thereby introducing the polypropylene glycol structure into the polymer main chain, which helps to further improve the film-forming property and stability of the composition, so that the nourishing and regulating effects on the skin are more lasting, and the active ingredients can give full play to the repair function. The comparative example uses sodium polyacrylate to replace the acrylic ester polymer, resulting in a decrease in the stability and uniformity of the composition, making it difficult to fully play the function of repairing and moisturizing the skin, and the final soothing effect is not ideal.

[0035] Test Example 2 Moisturizing effect test.

[0036] Test method: Twenty volunteers aged 18-30 were selected and randomly divided into 5 people / group. Each group used the essence composition prepared in Examples 1-3 and the comparative example, respectively. 2 g of the sample was applied to the same part of the forearm after cleaning. The increase rate of skin moisture content of the tested part 0 h and 4 h after application relative to that before application in each group was measured using a skin moisture meter, and the average value of the results of each group was taken.

[0037] The test results are shown in Table 2.

[0038] Table 2 Test results It can be seen from Table 2 that the essence composition of the present invention can significantly improve the moisture content of the skin, regulate the water-oil balance of the skin, and the moisturizing and hydrating function lasts longer, which is significantly better than the comparative example with replaced ingredients.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An essence composition for promoting the formation of sebum film, characterized in that: The essence composition for promoting the formation of sebum film comprises the following components in parts by weight: 1-3 parts squalane 6-12 parts of plant extract Panthenol 0.5-3 parts 2-4 parts of niacinamide 3-8 parts of acrylic polymer 60-80 parts of base material; in, The acrylic ester polymer is obtained by reacting hydroxyethyl acrylate, polypropylene glycol acrylate and sodium acrylate.

2. The essence composition for promoting the formation of sebum film according to claim 1, characterized in that: The plant extracts include shea butter, rosehip oil and jojoba oil.

3. The essence composition for promoting the formation of sebum film according to claim 2, characterized in that: The mass ratio of the shea butter, rosehip oil and jojoba oil is (1-4):(0.5-3):(1-5).

4. The essence composition for promoting the formation of sebum film according to claim 1, characterized in that: The base material is selected from one or more of water, oil, thickener, preservative, antioxidant, emulsifier and moisturizer.

5. The essence composition for promoting the formation of sebum film according to claim 4, characterized in that: The oil is selected from one or more of polydimethylsiloxane and caprylic / capric triglyceride.

6. The essence composition for promoting the formation of sebum film according to claim 1, characterized in that: The polypropylene glycol acrylate is one or both of polypropylene glycol di(meth)acrylate and polypropylene glycol mono(meth)acrylate.

7. The essence composition for promoting the formation of sebum film according to claim 1, characterized in that: The mass ratio of the hydroxyethyl acrylate, polypropylene glycol acrylate and sodium acrylate is (2-5):(3-6):(1-3).

8. The method for preparing the essence composition for promoting the formation of sebum film according to any one of claims 1 to 7, characterized in that: The preparation method of the essence composition for promoting the formation of sebum film comprises the following steps: S1, mixing hydroxyethyl acrylate, polypropylene glycol acrylate, sodium acrylate, a crosslinking agent and an initiator, and heating the mixture under the protection of an inert gas to react to obtain an acrylate polymer; S2, adding squalane and acrylic polymer to the base material, heating and stirring; S3. After cooling, add the plant extract, panthenol and niacinamide, and stir evenly to obtain the essence composition for promoting the formation of sebum film.

9. The method for preparing the essence composition for promoting the formation of sebum film according to claim 8, characterized in that: In step S1, the temperature of the heating reaction is 50-100°C.

10. The method for preparing the essence composition for promoting the formation of sebum film according to claim 8, characterized in that: In step S2, the temperature of the heating and stirring is 40-70°C.

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