Cosmetic composition with reduced stickiness and improved moisturization, comprising film forming polymers and skin biomimetic structure building emulsifiers

Abstract

The present invention relates to a cosmetic composition that reduces stickiness and improves moisturizing power by including a film-forming polymer and a skin biomimetic structure-forming emulsifier. The present invention provides a cosmetic composition that improves stickiness reduction, moisturizing power, and moisture coating power under appropriate amounts of the film-forming polymer and the skin biomimetic structure-forming emulsifier, even without using powder-based raw materials or raw materials with relatively low safety ratings according to EWG standards.

Description

Technology Field

[0001] The present invention relates to a cosmetic composition comprising a film-forming polymer and a skin biomimetic structure-forming emulsifier, and more specifically, to an oil-in-water (O / W) cosmetic composition having effects such as sebum adsorption and improvement of stickiness even without minimizing or including powder-based raw materials. Background Technology

[0002] As consumer interest in cosmetic ingredients increases, there is a growing development of products that meet requirements such as EWG ratings (safety evaluation grades for cosmetic ingredients), clean beauty, and the exclusion of harmful ingredients. In addition, with the emergence of issues regarding the inclusion of microplastics or nanomaterials, there is growing interest among consumers in cosmetic ingredients that do not leave residues on the skin.

[0003] In cosmetic compositions, powder-based ingredients are widely used to capture oil remaining on the skin, absorb sebum, and improve stickiness.

[0004] However, powder-based ingredients may contain microplastics (small plastic particles of 5mm or less) or nanomaterials, and when present in high amounts, they may cause dirt to rub off and absorb oil, potentially providing a stiff finish. 'Silica,' a type of powder-based ingredient, is rated YELLOW (grades 3–6: moderate risk) by EWG Grade 3, and 'polymethylsilsesquioxane' is classified as a microplastic, so it is often deemed unusable during ingredient screening.

[0005] Therefore, there is a need to develop cosmetic compositions that improve stickiness by utilizing film-forming polymers (polymer-based film-forming agents) and skin biomimetic structure-forming emulsifiers that correspond to clean beauty, even if powder-based ingredients are minimized or not included in oil-in-water (O / W) cosmetic compositions. The problem to be solved

[0006] The object of the present invention is to provide a cosmetic composition comprising a polymer-based film-forming agent and a skin biomimetic structure-forming emulsifier. means of solving the problem

[0007] The present invention relates to a cosmetic composition comprising a polymer-based film-forming agent and a skin biomimetic structure-forming emulsifier. In this case, the cosmetic composition of the present invention may have reduced stickiness or improved moisturizing power.

[0008] The present invention will be described in more detail below.

[0009] A film-forming agent comprising a PVM / MA copolymer according to the present invention; and

[0010] The present invention relates to a cosmetic composition comprising a skin biomimetic structure-forming emulsifier having one or more selected from the group consisting of polyglyceryl-3 distearate and glyceryl stearate citrate.

[0011] In the present invention, the film-forming agent may further include purified water, glycerin, and carbomer, but is not limited thereto.

[0012] In the present invention, the film-forming agent may be included in an amount of 0.5 to 3 weight%, 1 to 3 weight%, 1.5 to 3 weight%, 2 to 3 weight%, 0.5 to 2.5 weight%, 1 to 2.5 weight%, 1.5 to 2.5 weight%, 2 to 2.5 weight%, 0.5 to 2 weight%, 1 to 2 weight%, 1.5 to 2 weight%, for example, 2 weight% based on the total composition, but is not limited thereto.

[0013] In the present invention, the film-forming agent may further include purified water, glycerin, and carbomer, but is not limited thereto.

[0014] In the present invention, the film-forming agent comprises a PVM / MA copolymer in an amount of 0.1 to 9 wt%, 1 to 9 wt%, 0.1 to 8 wt%, 1 to 8 wt%, 0.1 to 7 wt%, 1 to 7 wt%, 0.1 to 6 wt%, 1 to 6 wt%, for example, 1 wt%, relative to the film-forming agent composition;

[0015] 50 to 58 wt%, 52 to 58 wt%, 50 to 56 wt%, 52 to 56 wt%, 50 to 54 wt%, 52 to 54 wt%, for example, 54 wt% of purified water;

[0016] 40 to 48 wt%, 42 to 48 wt%, 40 to 46 wt%, 42 to 46 wt%, 40 to 44 wt%, 42 to 44 wt%, for example, 44 wt% of glycerin; and

[0017] It may contain 0.1 to 9 weight%, 1 to 9 weight%, 0.1 to 8 weight%, 1 to 8 weight%, 0.1 to 7 weight%, 1 to 7 weight%, 0.1 to 6 weight%, 1 to 6 weight%, for example, 1 weight% of carbomer, but is not limited thereto.

[0018] In the present invention, the PVM / MA copolymer comprises, based on the total composition, 0.002 to 0.18 wt%, 0.02 to 0.18 wt%, 0.002 to 0.16 wt%, 0.02 to 0.16 wt%, 0.002 to 0.14 wt%, 0.02 to 0.14 wt%, 0.002 to 0.12 wt%, 0.02 to 0.12 wt%, 0.005 to 0.03 wt%, 0.01 to 0.03 wt%, 0.015 to 0.03 wt%, 0.02 to 0.03 wt%, 0.005 to 0.025 wt%, 0.01 to 0.025 wt%, 0.015 to 0.025 wt%, 0.02 to It may contain 0.025 wt%, 0.005 to 0.02 wt%, 0.01 to 0.02 wt%, 0.015 to 0.02 wt%, for example, 0.02 wt%, but is not limited thereto.

[0019] In the present invention, the glycerin is present in an amount of 0.22 to 1.32 wt%, 0.44 to 1.32 wt%, 0.66 to 1.32 wt%, 0.88 to 1.32 wt%, 0.22 to 1.1 wt%, 0.44 to 1.1 wt%, 0.66 to 1.1 wt%, 0.88 to 1.1 wt%, 0.22 to 0.88 wt%, 0.44 to 0.88 wt%, 0.66 to 0.88 wt%, 0.8 to 0.96 wt%, 0.84 to 0.96 wt%, 0.8 to 0.92 wt%, 0.84 to 0.92 wt%, 0.84 to 0.88 wt%, 0.84 to 0.88 wt%, for example, based on the total composition. It may contain 0.88% by weight, but is not limited thereto.

[0020] The above carbomer is present in an amount of 0.005 to 0.03 wt%, 0.01 to 0.03 wt%, 0.015 to 0.03 wt%, 0.02 to 0.03 wt%, 0.005 to 0.025 wt%, 0.01 to 0.025 wt%, 0.015 to 0.025 wt%, 0.02 to 0.025 wt%, 0.02 to 0.025 wt%, 0.005 to 0.02 wt%, 0.01 to 0.02 wt%, 0.015 to 0.02 wt%, 0.002 to 0.18 wt%, 0.02 to 0.18 wt%, 0.002 to 0.16 wt%, 0.02 to 0.16 wt%, 0.002 to 0.14 wt% based on the total composition. It may contain 0.02 to 0.14 weight%, 0.002 to 0.12 weight%, 0.02 to 0.12 weight%, for example, 0.02 weight%, but is not limited thereto.

[0021] In the present invention, the skin biomimetic structure-forming emulsifier may include polyglyceryl-3 distearate and glyceryl stearate citrate, but is not limited thereto.

[0022] In the present invention, the skin biomimetic structure-forming emulsifier may be included in an amount of 0.5 to 3 weight%, 1 to 3 weight%, 1.5 to 3 weight%, 2 to 3 weight%, 0.5 to 2.5 weight%, 1 to 2.5 weight%, 1.5 to 2.5 weight%, 2 to 2.5 weight%, 0.5 to 2 weight%, 1 to 2 weight%, 1.5 to 2 weight%, for example, 2 weight% based on the total composition, but is not limited thereto.

[0023] In the present invention, the skin biomimetic structure-forming emulsifier comprises 92 to 97 wt%, 93 to 97 wt%, 94 to 97 wt%, 92 to 96 wt%, 93 to 96 wt%, 94 to 96 wt%, 92 to 95 wt%, 93 to 95 wt%, 94 to 95 wt%, for example, 94.5 wt% of polyglyceryl-3 distearate relative to the emulsifier composition; and

[0024] It may contain 3 to 8 weight%, 4 to 8 weight%, 5 to 8 weight%, 3 to 7 weight%, 4 to 7 weight%, 5 to 7 weight%, 3 to 6 weight%, 4 to 6 weight%, 5 to 6 weight%, for example, 5.5 weight% of glyceryl stearate citrate, but is not limited thereto.

[0025] In the present invention, the polyglyceryl-3 distearate may be included in an amount of 0.4 to 2.9 wt%, 0.9 to 2.9 wt%, 1.4 to 2.9 wt%, 1.8 to 2.9 wt%, 0.4 to 2.4 wt%, 0.9 to 2.4 wt%, 1.4 to 2.4 wt%, 1.8 to 2.4 wt%, 0.4 to 1.9 wt%, 0.9 to 1.9 wt%, 1.4 to 1.9 wt%, for example, 1.9 wt% based on the total composition, but is not limited thereto.

[0026] In the present invention, the glyceryl stearate citrate may be included in an amount of 0.02 to 0.2 wt%, 0.05 to 0.2 wt%, 0.08 to 0.2 wt%, 0.1 to 0.2 wt%, 0.02 to 0.15 wt%, 0.05 to 0.15 wt%, 0.08 to 0.15 wt%, 0.1 to 0.15 wt%, 0.02 to 0.1 wt%, 0.05 to 0.1 wt%, 0.08 to 0.1 wt%, 0.1 to 0.1 wt%, for example, 0.1 wt%, based on the total composition, but is not limited thereto.

[0027] In the present invention, the formulation of the cosmetic composition may be of the oil-in-water (O / W) type, but is not limited thereto.

[0028] In the present invention, the cosmetic composition may further include one or more selected from the group consisting of polyols, thickeners, neutralizing agents, and preservatives, but is not limited thereto.

[0029] In the present invention, the polyol may comprise one or more selected from the group consisting of glycerin, diglycerin, butylene glycol, 1,2-hexanediol, phenylene glycol, ethylhexylglycerin, polyglycerin, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, propanediol, D-panthenol, and octanediol, but is not limited thereto.

[0030] In the present invention, the thickening agent may comprise one or more selected from the group consisting of carbomer, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, hydroxypropylmethylcellulose stearoxyether, cellulose gum, xanthan gum, tara gum, sclerotium gum, gum of gum arabic, gellan gum, guar gum, ethylcellulose, cellulose, and acrylate / C10-30 alkyl acrylate crosspolymer, but is not limited thereto.

[0031] In the present invention, the neutralizing agent may comprise one or more selected from the group consisting of tromethamine, arginine, potassium hydroxide, sodium hydroxide, triethanolamine and aminomethylpropanediol, L-arginine, sodium hydroxide and sodium citrate, but is not limited thereto.

[0032] In the present invention, the preservative may comprise one or more selected from the group consisting of 1,2-hexanediol, benzyl alcohol, chlorphenesin, benzoic acid, sorbic acid, dihydroacetic acid, methylchloroisothiazole, methylisothiazolinone, imidazolidinyl urea, and triclosan, but is not limited thereto.

[0033] In the present invention, the cosmetic composition may further include one or more selected from the group consisting of vegetable oil, distilled water, pH adjuster, moisturizer, and surfactant, but is not limited thereto.

[0034] In the present invention, the cosmetic composition may further include one or more additives selected from the group consisting of pigments, preservatives, and fragrances, but is not limited thereto.

[0035] One aspect of the present invention relates to a skin makeup method comprising the following steps:

[0036] A step of applying the cosmetic composition according to the present invention to the skin.

[0037] In the present invention, the pH of the aqueous phase water is not limited.

[0038] The above cosmetic composition can be manufactured in any formulation commonly produced in the industry, such as creams, lotions, lotions, packs, foundations, hair cosmetics, etc.

[0039] Specifically, the cosmetic composition of the present invention includes formulations of skin lotion, skin softener, skin toner, astringent, lotion, milk lotion, moisture lotion, nourishing lotion, massage cream, nourishing cream, moisture cream, hand cream, foundation, essence, nourishing essence, pack, soap, cleansing foam, cleansing lotion, cleansing cream, body lotion, and body cleanser.

[0040] Throughout this specification, materials, methods, and embodiments are merely illustrative and do not limit the invention. To enable the practice of various embodiments of the invention, descriptions of specific terms are provided:

[0041] [Term]

[0042] The term "film-forming agent" in this specification refers to an ingredient in cosmetics that forms a thin, transparent film on the skin or hair to perform various functions such as protection, fixation, waterproofing, and durability. Polymer film-forming agents are mainly composed of polymer compounds and, when applied to the skin or hair, create a uniform and flexible coating to protect the skin from the external environment and prevent moisture loss.

[0043] The term "polymer" as used in this specification refers to a high-molecular-weight compound formed by chemically bonding numerous repeating units (monomers) through covalent bonds.

[0044] The term "emulsifier" in this specification refers to a surfactant used to uniformly mix two or more different phases that do not mix, such as water and oil, to form a stable emulsion (emulsion), and may be used to improve the physical stability and homogeneity of a composition containing an emulsifier.

[0045] The term "skin biomimetic structure-forming emulsifier" in this specification refers to an emulsifier with physical and chemical properties similar to those of biological tissues or cells, and can be usefully utilized in fields where biocompatibility or biofriendliness is required. Effects of the invention

[0046] The present invention relates to a cosmetic composition comprising a film-forming polymer and a skin biomimetic structure-forming emulsifier, which has improved stickiness reduction and moisturizing power.

[0047] The present invention provides a cosmetic composition with improved stickiness reduction, moisturizing power, and moisture coating power under appropriate content of a film-forming polymer and a skin biomimetic structure-forming emulsifier, even without using powder-based raw materials or raw materials with relatively low safety ratings according to EWG. Brief explanation of the drawing

[0048] Figure 1 shows the results of a stickiness comparison experiment between the compositions of Example 1 and Comparative Examples A1 to A4. Figure 2a shows the results of a stickiness comparison experiment of compositions B1 to B4 of Comparative Examples. Figure 2b shows the results of a stickiness comparison experiment of the compositions of Comparative Examples C1 to C4. Figure 3 shows the results of a stickiness comparison experiment between the compositions of Examples 2 to 6 and Comparative Example D. Figure 4 shows the results of a stickiness comparison experiment between the compositions of Example 6 and Comparative Example D. Figure 5 is a photograph showing the results of a comparative experiment on the moisturizing power and moisture coating power of the compositions of Example 6 and Comparative Example D. Specific details for implementing the invention

[0049] Throughout this specification, when a part is described as "comprising" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0050] Additionally, where numerical ranges are disclosed in this specification, such ranges are continuous and, unless otherwise specified, include all values ​​from the minimum value of such range up to the maximum value including the maximum value.

[0051] Throughout this specification, "%" used to indicate the concentration of a particular substance is (weight / weight)% for solid / solid, (weight / volume)% for solid / liquid, and (volume / volume)% for liquid / liquid, unless otherwise noted.

[0052] Furthermore, the term “or” in this specification is intended to mean an implied “or” rather than an exclusive “or.” That is, where the combination or use of the configurations is not otherwise specified or is not evident from the context, i.e., where X includes A; where X includes B; or where X includes both A and B, “X includes A or B” may be applied to either of these cases.

[0053] The present invention will be explained in detail below through experimental examples.

[0054] Experimental Example 1. Results of a comparative experiment on stickiness according to the type of film-forming polymer

[0055] (1) Preparation of cosmetic compositions according to the type of aqueous film-forming polymer

[0056] To compare the degree of stickiness of various types of polymer-based film-forming agents, Example 1 and Comparative Examples A1 to A4 were prepared according to the compositions shown in Table 1 below.

[0057] Using commercially available raw materials, oil-in-water (O / W) cosmetic compositions were prepared in the order of polymethylsilsesquioxane, PVM / MA co-polymer, polyquaternium-51, glyceryl acrylate / acrylic acid copolymer, and cellulose (all included at 2% by weight of the total composition) as shown in Table 1 below. All compositions except for the film-forming polymer are identical.

[0058] The hardness of each composition was measured in a 25°C constant temperature bath using a rheometer (Sun Rheometer CR-3000EX / L, Sun Scientific, Inc.) under conditions of rod size 9, rod diameter 15 pi, T.Speed ​​(=entry speed): 2 cm / min, S.ADJ (=entry distance): 25 mm / min, and Range 500.

[0059] division Component Name Comparative Example A1 Example 1 Comparative Example A2 Comparative Example A3 Comparative Example A4 Awards Division purified water To 100 To 100 To 100 To 100 To 100 Sodium phytate 0.02 0.02 0.02 0.02 0.02 Tromethamine 0.08 0.08 0.08 0.08 0.08 glycerin 10.00 10.00 10.00 10.00 10.00 Butylene glycol 2.00 2.00 2.00 2.00 2.00 1,2-hexanediol 1.50 1.50 1.50 1.50 1.50 Pentylene glycol 2.00 2.00 2.00 2.00 2.00 Polymethylsilsesquioxane 2.00 - - - - Purified water (54%) Glycerin (44%) Carbomer (1%) PVM / MA copolymer (1%) - 2.00 - - - Purified water (95%) Polyquaternium-51 (5%) - - 2.00 - - Purified Water (51.7%) Glycerin (42%) Glyceryl Acrylate / Acrylic Acid Copolymer (3%) Dipropylene Glycol (1.5%) 1,2-Hexanediol (0.95%) PVM / MA Copolymer (0.85%) - - - 2.00 - Purified water (97%) 1,2-hexanediol (2%) Cellulose (0.6%) Sodium hyaluronate (0.2%) Polyglutamic acid (0.2%) - - - - 2.00 Yoo Sang-bu Polyglyceryl-3 distearate (94.5%) Glyceryl stearate citrate (5.5%) 3.50 3.50 3.50 3.50 3.50 Glyceryl stearate 1.00 1.00 1.00 1.00 1.00 cetearyl alcohol 1.00 0.50 0.50 0.50 0.50 Hydrogenated polyisobutene 5.00 0.50 0.50 0.50 0.50 isopropyl palmitate 8.00 15.00 15.00 15.00 15.00 Thickener Carbomer 0.10 0.10 0.10 0.10 0.10 hardness 38 38 39 37 38

[0061] (2) Results of clinical trials comparing stickiness

[0062] To evaluate the stickiness of different types of aqueous film-forming polymers, stickiness tests were conducted on Example 1 and Comparative Examples A1 to A4.

[0063] The compositions of Examples A1 to A4 and Comparative Examples were each applied to the back of the hand, which was the test site, and waited for 5 minutes. After attaching a sprinkler to the area where the composition was applied, a constant pressure was applied using an applicator. After applying the pressure, the sprinkler was removed, and the results are shown in Table 2 and Figure 1.

[0064] Comparative Example A1 Example 1 Comparative Example A2 Comparative Example A3 Comparative Example A4 Before / After Application jeon after jeon after jeon after jeon after jeon after Number of sprinkles 200 49 200 37 200 65 200 59 200 81 Decrease rate (%) 　 75.5 　 81.5 　 67.5 　 70.5 　 59.5

[0065] As can be seen from the results in Table 2 and Figure 1, the amount of sprinkle residue was lowest when the composition of Example 1 using the PVC / MA copolymer blend was applied and the sprinkles were removed. Therefore, it can be seen that, excluding the type of film-forming polymer, the PVC / MA copolymer blend is relatively effective in improving stickiness when used for compositions under the same conditions.

[0066] Experimental Example 2. Results of a comparative experiment on stickiness according to the type and content of oil-phase skin biomimetic structure-forming emulsifiers

[0067] (1) Results of using cetearyl oliveate / sorbitan oliveate mixture

[0068] To evaluate the stickiness according to content when a cetearyl oliveate / sorbitan oliveate mixture was used as an emulsifier, Comparative Examples B1 to B4 were prepared according to the compositions shown in Table 3 below, and a stickiness test was conducted.

[0069] Oil-in-water (O / W) cosmetic compositions were prepared using commercially available raw materials in the order of 0.5 wt%, 1 wt%, and 2 wt% of polymethylsilsesquioxane and cetearyl oliveate / sorbitan oliveate blends, as shown in Table 3 below. All comparative examples had the same composition, except for the skin biomimetic structure-forming emulsifier.

[0070] The hardness of each composition was measured in a 25°C constant temperature bath using a rheometer (Sun Rheometer CR-3000EX / L, Sun Scientific, Inc.) under conditions of rod size 9, rod diameter 15 pi, T.Speed ​​(=entry speed): 2 cm / min, S.ADJ (=entry distance): 25 mm / min, and Range 500.

[0071] division Component Name Comparative Example B1 Comparative Example B2 Comparative Example B3 Comparative Example B4 Awards Division purified water To 100 To 100 To 100 To 100 Sodium phytate 0.02 0.02 0.02 0.02 Tromethamine 0.08 0.08 0.08 0.08 glycerin 10.00 10.00 10.00 10.00 Butylene glycol 2.00 2.00 2.00 2.00 1,2-hexanediol 1.50 1.50 1.50 1.50 Pentylene glycol 2.00 2.00 2.00 2.00 Polymethylsilsesquioxane 2.00 - - - Yoo Sang-bu Cetearyl Oliveate Sorbitan Oliveate - 0.50 1.00 2.00 Glyceryl stearate 1.00 1.00 1.00 1.00 cetearyl alcohol 1.00 0.50 0.50 0.50 Hydrogenated polyisobutene 5.00 0.50 0.50 0.50 isopropyl palmitate 8.00 15.00 15.00 15.00 Thickener Carbomer 0.10 0.10 0.10 0.10 hardness 38 49 51 55

[0072] Comparative Examples B1 to B4 compositions were tested using the same method as in Experimental Example 1, and the results are shown in Table 4 and Figure 2a.

[0073] Comparative Example B1 Comparative Example B2 Comparative Example B3 Comparative Example B4 Before / After Application jeon after jeon after jeon after jeon after Number of sprinkles 200 49 200 65 200 56 200 51 Decrease rate (%) 　 75.5 　 67.5 　 72 　 74.5

[0074] (2) Results of using polyglyceryl-3 distearate / glyceryl stearate citrate combination

[0075] To evaluate the stickiness according to content when a polyglyceryl-3 distearate / glyceryl stearate citrate mixture was used as an emulsifier, Comparative Examples C1 to C4 were prepared according to the compositions shown in Table 5 below, and a stickiness test was conducted.

[0076] Oil-in-water (O / W) cosmetic compositions were prepared using commercially available raw materials in the order of 2 wt% polymethylsilsesquioxane, 0.5 wt% polyglyceryl-3 distearate / glyceryl stearate citrate blends, 1 wt% and 2 wt%, as shown in Table 3 below. All comparative examples had the same composition, except for the skin biomimetic structure-forming emulsifier.

[0077] The hardness of each composition was measured in a 25°C constant temperature bath using a rheometer (Sun Rheometer CR-3000EX / L, Sun Scientific, Inc.) under conditions of rod size 9, rod diameter 15 pi, T.Speed ​​(=entry speed): 2 cm / min, S.ADJ (=entry distance): 25 mm / min, and Range 500.

[0078] division Component Name Comparative Example C1 Comparative Example C2 Comparative Example C3 Comparative Example C4 Awards Division purified water To 100 To 100 To 100 To 100 Sodium phytate 0.02 0.02 0.02 0.02 Tromethamine 0.08 0.08 0.08 0.08 glycerin 10.00 10.00 10.00 10.00 Butylene glycol 2.00 2.00 2.00 2.00 1,2-hexanediol 1.50 1.50 1.50 1.50 Pentylene glycol 2.00 2.00 2.00 2.00 Polymethylsilsesquioxane 2.00 - - - Yoo Sang-bu Polyglyceryl-3 distearate (94.5%) Glyceryl stearate citrate (5.5%) - 0.50 1.00 2.00 Glyceryl stearate 1.00 1.00 1.00 1.00 cetearyl alcohol 1.00 0.50 0.50 0.50 Hydrogenated polyisobutene 5.00 0.50 0.50 0.50 isopropyl palmitate 8.00 15.00 15.00 15.00 Thickener Carbomer 0.10 0.10 0.10 0.10 hardness 38 40 46 49

[0080] Comparative Examples C1 to C4 compositions were tested using the same method as in Experimental Example 1, and the results are shown in Table 6 and Figure 2b.

[0081] Comparative Example C1 Comparative Example C2 Comparative Example C3 Comparative Example C4 Before / After Application jeon after jeon after jeon after jeon after Number of sprinkles 200 49 200 55 200 48 200 41 Decrease rate (%) 　 75.5 　 72.5 　 76 　 79.5

[0082] As can be seen from the results in Tables 4 and 6 and Figures 2a and 2b, the reduction rate of the number of sprinkles was greater when using a combination of polyglyceryl-3 distearate and glyceryl stearate citrate (Table 5 and Figure 2b) compared to when using a combination of cetearyl oliveate and sorbitan oliveate instead of polymethylsilsesquioxane (Table 4 and Figure 2a), confirming that it has a better effect on improving stickiness.

[0083] Experimental Example 3. Results of a comparative experiment on stickiness according to the content of film-forming polymer and skin biomimetic structure-forming emulsifier

[0084] (1) Preparation of cosmetic compositions according to content

[0085] After selecting a PVM / MA copolymer blend as a film-forming agent and a blend of polyglyceryl-3 distearate and glyceryl stearate citrate as a skin biomimetic structure-forming emulsifier, Examples 2 to 6 and Comparative Example D were prepared according to the compositions shown in Table 7 below to compare the degree of stickiness according to content. Examples 2 to 6 contained 0.3, 0.5, 1, 2, and 3 weight% of the blend of polyglyceryl-3 distearate and glyceryl stearate citrate, respectively.

[0086] The hardness of each composition was measured in a 25°C constant temperature bath using a rheometer (Sun Rheometer CR-3000EX / L, Sun Scientific, Inc.) under conditions of rod size 9, rod diameter 15 pi, T.Speed ​​(=entry speed): 2 cm / min, S.ADJ (=entry distance): 25 mm / min, and Range 500.

[0087] division Component Name Comparative Example D Example 2 Example 3 Example 4 Example 5 Example 6 Awards Division purified water To 100 To 100 To 100 To 100 To 100 To 100 Sodium phytate 0.02 0.02 0.02 0.02 0.02 0.02 Tromethamine 0.08 0.08 0.08 0.08 0.08 0.08 glycerin 10.00 10.00 10.00 10.00 10.00 10.00 Butylene glycol 2.00 2.00 2.00 2.00 2.00 2.00 1,2-hexanediol 1.50 1.50 1.50 1.50 1.50 1.50 Pentylene glycol 2.00 2.00 2.00 2.00 2.00 2.00 Polymethylsilsesquioxane 2.00 - - - - - Purified water (54%) Glycerin (44%) Carbomer (1%) PVM / MA copolymer (1%) - 2.00 2.00 2.00 2.00 2.00 Yoo Sang-bu Polyglyceryl-3 distearate (94.5%) Glyceryl stearate citrate (5.5%) - 0.30 0.50 1.00 2.00 3.00 Glyceryl stearate 1.00 1.00 1.00 1.00 1.00 1.00 cetearyl alcohol 1.00 0.50 0.50 0.50 0.50 0.50 Hydrogenated polyisobutene 5.00 0.50 0.50 0.50 0.50 0.50 isopropyl palmitate 8.00 15.00 15.00 15.00 15.00 15.00 Thickener Carbomer 0.10 0.10 0.10 0.10 0.10 0.10 hardness 38 Separable measurement impossible 40 42 46 64

[0089] (2) Results of clinical trials comparing stickiness

[0090] Experiments were conducted on the compositions of Examples 2 to 6 and Comparative Example D in the same manner as in Experimental Example 1, and the results are shown in Table 8 and Figure 3.

[0091] Comparative Example D Example 2 Example 3 Example 4 Example 5 Example 6 Before / After Application jeon after jeon after jeon after jeon after jeon after jeon after Number of sprinkles 200 49 200 - 200 55 200 48 200 34 200 84 Decrease rate (%) 　 75.5 　 - 　 72.5 　 76 　 83 　 58

[0092] As can be seen from the results in Table 8 and Figure 3, when 2 wt% of a PVC / MA copolymer blend was used as the film-forming polymer and 2 wt% of a blend of polyglyceryl-3 distearate and glyceryl stearate citrate was used as the skin biomimetic structure-forming emulsifier, the amount of sprinkle residue was the lowest, but the rate of reduction in stickiness was generally excellent.

[0093] A composition comprising 2% by weight of a PVC / MA copolymer blend, which is Example 6 of Experimental Example 3 above, and 2% by weight of a polyglyceryl-3 distearate / glyceryl stearate citrate blend was selected as the final example, and the results of a comparative experiment with Comparative Example D composition, which comprises 2% by weight of polymethylsilsesquioxane, are shown in Table 9 and Figure 4.

[0094] Comparative Example D Example 6 Before / After Application jeon after jeon after Number of sprinkles 200 49 200 34 Decrease rate (%) 　 75.5 　 83

[0095] As can be seen from the results in Table 9 and Figure 4, in the case of Example 6, which included a PVC / MA copolymer formulation instead of polymethylsilsesquioxane, the amount of sprinkle residue was small, and the stickiness reduction rate was excellent.

[0096] Experimental Example 4. Results of comparative experiment on moisturizing power and moisture coating power of the optimal content composition

[0097] The moisturizing power and moisture coating power of a composition comprising 2% by weight of the PVM / MA copolymer blend of Example 6 and 2% by weight of a blend of polyglyceryl-3 distearate and glyceryl stearate citrate, and a composition of Comparative Example D comprising 2% by weight of polymethylsilsesquioxane, were compared, and the results are shown in Figure 5.

[0098] After washing the test area (inner forearm) with IVORY soap and waiting in a constant temperature and humidity chamber (22±2℃, 40–60% RH) for 10 minutes, the skin moisture level was measured without application to the test area. After applying 8 µl of the compositions of Example 6 and Comparative Example D to the test area (inner forearm, 2 cm x 2 cm), the skin moisture level was measured immediately after application. After washing the test area with water and waiting in a constant temperature and humidity chamber (22±2℃, 40–60% RH) for 10 minutes, the remaining skin moisture level was measured to confirm the results. An Epsilon (BiOX, England) was used as the measuring instrument.

[0099] As can be seen in Figure 5, the composition of Example 6 showed excellent moisturizing power and moisture coating power to the extent that there was a significant numerical difference compared to Comparative Example D.

[0100] Based on the combined results of the above experimental examples, it was confirmed that when a PVM / MA copolymer formulation is used as the film-forming polymer and a polyglyceryl-3 distearate / glyceryl stearate citrate formulation is used as the skin biomimetic structure-forming emulsifier, the stickiness reduction effect is excellent, and the moisturizing and moisture coating capabilities are also superior.

[0101] The scope of protection of the present invention is not limited to the description of the embodiments explicitly explained above. Furthermore, the scope of protection of the present invention cannot be limited by obvious modifications or substitutions in the technical field to which the present invention belongs.

Claims

Claim 1 A cosmetic composition comprising: a film-forming agent comprising a PVM / MA copolymer, purified water, glycerin, and carbomer; and a skin biomimetic structure-forming emulsifier comprising one or more selected from the group consisting of polyglyceryl-3 distearate and glyceryl stearate citrate, wherein the film-forming agent is included in an amount of 0.5 to 3 weight% relative to the total composition. Claim 2 delete Claim 3 delete Claim 4 A cosmetic composition according to claim 1, wherein the skin biomimetic structure-forming emulsifier is included in an amount of 0.5 to 3 weight percent relative to the total composition. Claim 5 A cosmetic composition according to claim 1, wherein the skin biomimetic structure-forming emulsifier comprises polyglyceryl-3 distearate and glyceryl stearate citrate. Claim 6 A cosmetic composition according to claim 1, wherein the cosmetic composition further comprises one or more selected from the group consisting of polyols, thickeners, neutralizing agents, and preservatives.

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