Essence composition for promoting sebum film formation and preparation method thereof

Abstract

The present invention relates to an essence composition that promotes the formation of a sebum membrane and a preparation method thereof. The essence composition that promotes the formation of a sebum membrane comprises the following components by weight: 1-3 parts of squalane, 6-12 parts of a plant extract, 0.5-3 parts of panthenol, 2-4 parts of niacinamide, 3-8 parts of an acrylate polymer, and 60-80 parts of a base material; wherein the acrylate polymer is obtained by reacting hydroxyethyl acrylate, polypropylene glycol acrylate, and sodium acrylate. The present invention enhances the compatibility between the components and improves the stability of the composition. At the same time, it can better play the role of repairing skin, promoting the growth of sebum membranes, and improving the water-oil balance of the skin, solving the problems in the prior art and having important significance for the development of this field.

Description

Technical Field

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

[0002] The sebum film is a natural protective layer covering the skin's surface, composed of oil secreted by sebaceous glands, sweat secreted by sweat glands, and lipids produced by keratinocyte metabolism. This protective layer has three major functions: First, its slightly acidic environment of 4.5-6.5 inhibits the growth of harmful bacteria; second, its lipid components, such as triglycerides, lock in moisture and prevent transepidermal water loss; and finally, the sebum film neutralizes external alkaline stimuli and blocks the penetration of pollutants. However, due to factors such as excessive cleansing, environmental stress, external trauma, or hormonal imbalances, the sebum film is easily damaged, which can lead to a decrease in the skin's barrier function and cause problems such as dryness, sensitivity, and redness.

[0003] Existing skin care products primarily repair damaged sebum membranes through two pathways: biomimetic sebum membrane replenishment and the promotion of lipid synthesis. Prior art CN111557874A - A biomimetic, camellia extract-containing skin barrier repair composition and its application, uses biomimetic lipid components similar to human sebum, such as squalane, ceramide, and fatty acids, to simulate the natural sebum membrane structure and enhance barrier function; CN115869219A - A method for liposome encapsulation of essential oil skin care products, using nano-liposome encapsulation technology to encapsulate active ingredients, which can improve transdermal absorption of active ingredients and promote skin repair; There are also a number of 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, achieving a certain effect of repairing the skin and promoting the regeneration of the sebum membrane. However, it is costly to add a large number 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 long-lasting, stable and efficient skin care effects.

[0005] Therefore, there is an urgent need to develop a new technical solution to provide an essence composition product with better performance and reliability to solve the problems existing in the existing technology. Summary of the Invention

[0006] Based on this, the present invention provides an essence composition that promotes the formation of a sebum membrane and a preparation method thereof. The present invention utilizes a compound of substances such as squalane, plant extracts, panthenol, and an acrylic polymer to enhance the compatibility between the components and improve the stability of the composition. It can also better repair skin, promote the growth of the sebum membrane, and improve the water-oil balance of the skin, resolving problems in the prior art and having important implications 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:

[0008] 1-3 parts squalane

[0009] 6-12 parts of plant extract

[0010] 0.5-3 parts panthenol

[0011] 2-4 parts niacinamide

[0012] 3-8 parts of acrylic polymer

[0013] 60-80 parts of base material;

[0014] in,

[0015] The acrylic ester polymer is obtained by reacting hydroxyethyl acrylate, polypropylene glycol acrylate and sodium acrylate.

[0016] 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).

[0017] Furthermore, the mass ratio of shea butter, rosehip oil and jojoba oil is (1-4):(0.5-3):(1-5).

[0018] Furthermore, the base material is selected from one or more of water, oil, thickener, preservative, antioxidant, emulsifier and moisturizer.

[0019] Furthermore, the oil is selected from one or more of polydimethylsiloxane and caprylic / capric triglyceride.

[0020] Furthermore, the polypropylene glycol acrylate is one or both of polypropylene glycol di(meth)acrylate and polypropylene glycol mono(meth)acrylate.

[0021] Furthermore, the mass ratio of hydroxyethyl acrylate, polypropylene glycol acrylate and sodium acrylate is (2-5):(3-6):(1-3).

[0022] Another object of the present invention is to provide a method for preparing the above-mentioned essence composition for promoting sebum film formation, wherein the method for preparing the essence composition for promoting sebum film formation comprises the following steps:

[0023] S1, mixing hydroxyethyl acrylate, polypropylene glycol acrylate, sodium acrylate, a crosslinking agent and an initiator, and heating the mixture under an inert gas to react to obtain an acrylate polymer;

[0024] S2. Add squalane and acrylic polymer to the base material, and heat and stir;

[0025] 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.

[0026] Furthermore, in step S1, the temperature of the heating reaction is 50-100°C.

[0027] Furthermore, in step S2, the temperature of the heating and stirring is 40-70°C.

[0028] The present invention has the following beneficial effects:

[0029] The present invention provides an essence composition that promotes the formation of the sebum membrane. The essence composition comprises squalane, shea butter, rosehip oil, jojoba oil, panthenol, niacinamide, an acrylic polymer, and a base material. The multiple active ingredients in the present invention can mimic the structure of sebum and replenish lipids, thereby strengthening the barrier function. They can also promote sebum synthesis and achieve a regenerative effect. Therefore, the different active ingredients work synergistically to promote the repair of the sebum membrane from multiple perspectives, effectively improving and regulating the health of the skin.

[0030] The acrylic ester polymer of the present invention is obtained by the reaction of hydroxyethyl acrylate, polypropylene glycol acrylate and sodium acrylate. Its structure contains hydrophilic acrylate and hydroxyl groups, as well as a hydrophobic propoxy polyether structure. Therefore, it has certain emulsification and dispersing effects. On the one hand, it can improve the uniformity of the essence composition, so that the active ingredients are uniformly suspended and dispersed, and the moisturizing effect on the skin is more stable and long-lasting. On the other hand, the polymer can also regulate the oil-water balance of the skin through the hydrophilic and hydrophobic groups, further improving the moisturizing function under the nourishing effect of the active ingredients and the base material, and achieving good skin care effects. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the technical solutions of the present invention, the following examples are given. Unless otherwise stated, the raw materials, reactions and post-processing methods mentioned in the examples are common raw materials on the market and technical methods well known to those skilled in the art.

[0032] The terms "preferred," "preferably," "more preferred," and the like, used herein, refer to embodiments of the invention that may provide certain benefits under certain circumstances. However, other embodiments may also be preferred under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.

[0033] It should be understood that, except in any operating examples, or where otherwise indicated, all numbers expressing, for example, quantities of ingredients used in the specification and claims are to be understood as being modified in all instances by the term "about." Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and appended claims are approximations that may vary depending upon the desired properties to be obtained by the present invention.

[0034] The polypropylene glycol monomethacrylate M in the embodiment of the present invention n ≈375.

[0035] The polypropylene glycol dimethacrylate M in the embodiment of the present invention n ≈560.

[0036] The emulsifier OP-10 in the embodiment of the present invention, dodecylphenol polyoxyethylene ether, was purchased from Aladdin.

[0037] The base material in the embodiment of the present invention includes the following components in parts by weight:

[0038] 88 parts purified water, 3 parts 1,3-butylene glycol, 1 part sodium polyacrylate (branded as Polyhe Bio), 0.5 parts p-hydroxyacetophenone, 0.5 parts tocopheryl acetate, 2 parts glyceryl stearate and 5 parts caprylic / capric triglyceride (branded as KLK GTCC).

[0039] Example 1

[0040] A composition for promoting the formation of sebum film, comprising the following components in parts by weight:

[0041] 1.5 parts squalane

[0042] 3 parts shea butter

[0043] 2 parts rosehip oil

[0044] 4 parts jojoba oil

[0045] 0.8 parts of panthenol

[0046] 2 parts niacinamide

[0047] 6 parts of acrylic polymer

[0048] 60 parts of base material;

[0049] The preparation method of the essence composition for promoting sebum film formation comprises the following steps:

[0050] S1. Using water as solvent, 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 were added, and the mixture was reacted at 70°C for 4 h under nitrogen protection. The mixture was filtered and dried to obtain an acrylic ester polymer;

[0051] S2. Add squalane and acrylic polymer to the base material according to the above mass fractions, and stir at 50°C for 5 minutes;

[0052] S3. After cooling, add shea butter, rosehip oil, jojoba oil, panthenol and niacinamide, stir evenly, and discharge to obtain the essence composition for promoting sebum film formation.

[0053] Example 2

[0054] A composition for promoting the formation of sebum film, comprising the following components in parts by weight:

[0055] 2 parts squalane

[0056] 3 parts shea butter

[0057] 3 parts rosehip oil

[0058] 4 parts jojoba oil

[0059] 1 part panthenol

[0060] 2.5 parts niacinamide

[0061] 6.5 parts of acrylic polymer

[0062] 65 parts of base material;

[0063] The preparation method of the essence composition for promoting sebum film formation comprises the following steps:

[0064] 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;

[0065] S2. Add squalane and acrylic polymer to the base material according to the above mass fractions, and stir at 50°C for 5 minutes;

[0066] S3. After cooling, add shea butter, rosehip oil, jojoba oil, panthenol and niacinamide, stir evenly, and discharge to obtain the essence composition for promoting sebum film formation.

[0067] Example 3

[0068] A composition for promoting the formation of sebum film, comprising the following components in parts by weight:

[0069] 2.3 parts squalane

[0070] 3.5 parts shea butter

[0071] 3 parts rosehip oil

[0072] 5 parts jojoba oil

[0073] 1.2 parts panthenol

[0074] 2.5 parts niacinamide

[0075] 8 parts of acrylic polymer

[0076] 75 parts of base material;

[0077] The preparation method of the essence composition for promoting sebum film formation comprises the following steps:

[0078] S1. Using water as solvent, 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 were added, and the mixture was reacted at 70°C for 4 h under nitrogen protection. The mixture was filtered and dried to obtain an acrylic ester polymer;

[0079] S2. Add squalane and acrylic polymer to the base material according to the above mass fractions, and stir at 50°C for 5 minutes;

[0080] S3. After cooling, add shea butter, rosehip oil, jojoba oil, panthenol and niacinamide, stir evenly, and discharge to obtain the essence composition for promoting sebum film formation.

[0081] Comparative Example

[0082] An essence composition. The difference between this comparative example and Example 1 is that step S1 is deleted, sodium polyacrylate is used to replace the acrylic ester polymer, and other ingredients and preparation methods are the same as those in Example 1.

[0083] Test Example 1

[0084] Tested for soothing and regenerating effects.

[0085] Test method:

[0086] 80 volunteers aged 18-50 years with sensitive skin, erythema, etc. due to laser, minimally invasive surgery, etc. 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.

[0087] The judging criteria are:

[0088] 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;

[0089] After the test,

[0090] A symptom score reduction of ≥95% was considered as recovery;

[0091] A 70-95% (inclusive) reduction in symptom score was considered markedly effective;

[0092] A 30-70% (inclusive) reduction in symptom score is considered effective;

[0093] If the symptom score decreases by less than 30%, it is considered ineffective.

[0094] The test results are shown in Table 1.

[0095] Table 1 Test results

[0096]

[0097] According to Table 1, it can be concluded that the essence composition for promoting sebum film formation prepared by 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 film, and no adverse reactions such as allergies occur, thereby achieving an improvement in skin health. 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 a polypropylene glycol structure into the polymer backbone, which helps to further improve the film-forming property and stability of the composition. Therefore, the nourishing and regulating effect on the skin is more lasting, and the active ingredients can more fully exert their 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 exert the function of repairing and moisturizing the skin, and the final soothing effect is not ideal.

[0098] Test Example 2

[0099] Moisturizing effect test.

[0100] Test method:

[0101] Twenty volunteers aged 18-30 were selected and randomly divided into 5 groups. 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 cleansed forearm. The increase in skin moisture content of the tested part of each group at 0 h and 4 h after application relative to the increase before application was measured using a skin moisture meter. The results of each group were averaged.

[0102] The test results are shown in Table 2.

[0103] Table 2 Test results

[0104]

[0105] As can be seen from Table 2, 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 has a longer-lasting moisturizing and hydrating function, which is significantly better than the comparative example with replaced ingredients.

[0106] 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 invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0107] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods 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 mass: 1-3 parts squalane 6-12 parts of plant extract 0.5-3 parts panthenol 2-4 parts niacinamide 3-8 parts of acrylic polymer 60-80 parts of base material; in, The acrylic polymer is obtained by reacting hydroxyethyl acrylate, polypropylene glycol acrylate and sodium acrylate; The preparation method of the essence composition for promoting sebum film formation comprises the following steps: S1, mixing hydroxyethyl acrylate, polypropylene glycol acrylate, sodium acrylate, a crosslinking agent and an initiator, and heating the mixture under an inert gas to react to obtain an acrylate polymer; S2. Add squalane and acrylic polymer to the base material, and heat and stir; S3. After cooling, add the plant extract, panthenol and niacinamide, and stir evenly to obtain the essence composition for promoting sebum film formation; The mass ratio of the hydroxyethyl acrylate, polypropylene glycol acrylate and sodium acrylate is (2-5):(3-6):(1-3); The polypropylene glycol acrylate is polypropylene glycol dimethacrylate and polypropylene glycol monomethacrylate.

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

3. The essence composition for promoting sebum film formation 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 sebum film formation 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 sebum film formation 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 sebum film formation according to claim 1, characterized in that: In step S1, the temperature of the heating reaction is 50-100°C.

7. The essence composition for promoting sebum film formation according to claim 1, characterized in that: In step S2, the temperature of the heating and stirring is 40-70°C.

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