Water-in-oil type cosmetic composition for ultraviolet blocking comprising water-soluble ultraviolet blocking material and oil-soluble ultraviolet blocking material

Abstract

The present invention relates to a cosmetic composition for ultraviolet blocking and a preparation method therefor. The cosmetic composition of the present invention is a water-in-oil type cosmetic composition, which offers excellent moisturization by high contents of phenylbenzimidazole sulfonic acid and terephthalidene dicamphor sulfonic acid contained in an aqueous phase and has an inner phase (aqueous phase part) content of 60% or more by polysilicon-15 applied to an oil phase part, wherein the cosmetic composition can implement a transparent or translucent water drop formulation.

Description

Water-in-oil cosmetic composition for UV protection comprising a water-soluble UV blocking agent and an oil-soluble UV blocking agent

[0001] This invention relates to a cosmetic composition for blocking ultraviolet rays and a method for manufacturing the same.

[0002] Ultraviolet rays contained in sunlight are classified into UVC (100–290 nm), UVB (290–320 nm), and UVA (290–320 nm). Among these, UVC is almost completely absorbed by the Earth's atmosphere, while UVB and UVA reach the ground. UVA penetrates deep into the dermis, activating free radicals and damaging collagen and elastic fibers within the skin, thereby forming wrinkles and accelerating skin aging. UVB penetrates the epidermis and causes skin conditions such as redness and skin tumors.

[0003] Various sun care products or UV protection products have been released to prevent such skin damage caused by ultraviolet rays. Among them, sun care products containing oil-soluble ingredients generally appear as white emulsion formulations. However, in order to secure a high UV protection factor of SPF40, PA+++ or higher, the content of oil-soluble ingredients inevitably increases, resulting in a characteristically heavy and oily texture.

[0004] Therefore, there is a need to develop cosmetics with a moisture-rich formulation that improves upon the heavy feel of existing sun care products.

[0005] One aspect provides a cosmetic composition for UV protection comprising: an aqueous phase comprising a water-soluble or water-dispersible UV-blocking substance; and an oil phase comprising an oil-soluble UV-blocking substance and a silicone-based emulsifier.

[0006] Another aspect provides a method for preparing a cosmetic composition for UV protection, comprising: an aqueous phase comprising a water-soluble or water-dispersible UV-blocking substance; and an oil phase comprising an oil-soluble UV-blocking substance and a silicone-based emulsifier.

[0007] One aspect provides a cosmetic composition for UV protection comprising: an aqueous phase comprising a water-soluble or water-dispersible UV-blocking substance; and an oil phase comprising an oil-soluble UV-blocking substance and a silicone-based emulsifier.

[0008] The above water-soluble or water-dispersible UV blocking material may be one or more selected from the group consisting of phenylbenzimidazole sulfonic acid, terephthalylidene dicamphor sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, methylenebis-benzotriazolyltetramethylbutylphenol, bis-ethylhexyloxyphenol methoxyphenyl triazine, benzophenone-4, and benzophenone-5, and specifically, it may include phenylbenzimidazole sulfonic acid and terephthalylidene dicamphor sulfonic acid.

[0009] The above “phenylbenzimidazole sulfonic acid” corresponds to an aromatic organic compound having the structure of Chemical Formula 1 below.

[0010] [Chemical Formula 1]

[0011]

[0012] The above “terephthalidendicampersulfonic acid” corresponds to an organic compound having the structure of Chemical Formula 2 below.

[0013] [Chemical Formula 2]

[0014]

[0015] In one embodiment, the phenylbenzimidazole sulfonic acid may be included in an amount of 3 to 5 parts by weight, 3 to 4.5 parts by weight, 3 to 4 parts by weight, 3.5 to 5 parts by weight, 3.5 to 4.5 parts by weight, 3.5 to 4 parts by weight, 4 to 5 parts by weight, or 4 to 4.5 parts by weight, based on 100 parts by weight of the total cosmetic composition.

[0016] In one embodiment, the terephthalilylidendicamphorsulfonic acid may be included in an amount of 2 to 4 parts by weight, 2 to 3.5 parts by weight, 2 to 3.3 parts by weight, 2 to 3 parts by weight, 2.3 to 4 parts by weight, 2.3 to 3.5 parts by weight, 2.3 to 3.3 parts by weight, 2.3 to 3 parts by weight, or 2.5 to 2.8 parts by weight.

[0017] According to one embodiment, the terephthalilylidendicampersulfonic acid may be included in the form of a 33% (w / w) aqueous solution in an amount of 7 to 12 parts by weight relative to 100 parts by weight of the total cosmetic composition, which may correspond to 2.3 to 4 parts by weight based on the active ingredient of terephthalilylidendicampersulfonic acid.

[0018] In one embodiment, to obtain a UV protection value of SPF40, PA+++ or higher, the phenylbenzimidazole sulfonic acid may be included in an amount of 3 to 4 parts by weight per 100 parts by weight of the total cosmetic composition, and the terephthalilylidendicamphorsulfonic acid may be included in an amount of 2.3 to 4 parts by weight per 100 parts by weight of the total cosmetic composition.

[0019] The above-mentioned useful UV blocking substances are Polysilicon-15, Drometrizole Trisiloxane (DMTS), Homosalate, Ethylhexyl Salicylate, Octocrylene, Ethylhexylmethoxycinnamate, Butyl Methoxydibenzoylmethane, Bis-ethylhexyloxyphenolmethoxyphenyltriazine, Ethylamino Hydroxybenzoyl Hexyl Benzoate, Ethylhexyl Triazone, and Isoamyl p-methoxycinnamate. It may be one or more selected from the group consisting of disodium phenyl dibenzimidazole tetrasulfonate and 4-methylbenzylidene camphor, and specifically, it may include polysilicon-15 and drometrizole trisiloxane.

[0020] The above “polysilicon-15” corresponds to a liquid siloxane polymer having the structure of Chemical Formula 3 below and exhibiting pale yellow viscosity.

[0021] [Chemical Formula 3]

[0022]

[0023] The above “drometrizole trisiloxane” corresponds to an organic compound having the structure of Chemical Formula 4 below and includes a siloxane structure.

[0024] [Chemical Formula 4]

[0025]

[0026] In one embodiment, the polysilicon-15 may be included in an amount of 4 to 8 parts by weight, 4 to 7.5 parts by weight, 4 to 7 parts by weight, 4.5 to 8 parts by weight, 4.5 to 7.5 parts by weight, 4.5 to 7 parts by weight, 5 to 8 parts by weight, 5 to 7.5 parts by weight, 5 to 7 parts by weight, 4 to 6 parts by weight, or 4.5 to 5.5 parts by weight, based on 100 parts by weight of the total cosmetic composition.

[0027] In one embodiment, the drometrizole trisiloxane may be included in an amount of 1 to 6 parts by weight, 1 to 5 parts by weight, 2 to 6 parts by weight, 2 to 5 parts by weight, 3 to 6 parts by weight, 3 to 5 parts by weight, 4 to 6 parts by weight, or 4.5 to 5.5 parts by weight.

[0028] In one embodiment, to obtain an ultraviolet protection value of SPF40, PA+++ or higher, the polysilicon-15 may be included in an amount of 4 to 7 parts by weight relative to 100 parts by weight of the total cosmetic composition, and the drometrizole trisiloxane may be included in an amount of 1 to 5 parts by weight relative to 100 parts by weight of the total cosmetic composition.

[0029] The above cosmetic composition may be characterized by being a water-in-oil formulation. In the case of a cosmetic composition for sunscreen, the water-in-oil formulation can form an oil film on the skin compared to the oil-in-water type to inhibit moisture evaporation from the skin, and furthermore, due to its excellent water resistance, it can be applied to various sunscreen products. However, if the oil content is excessively high, it may result in a heavy and oily feel.

[0030] The cosmetic composition of the present invention may have an internal phase, the aqueous portion, in an amount of 60 to 85 parts by weight, 60 to 80 parts by weight, 60 to 75 parts by weight, 60 to 70 parts by weight, 60 to 65 parts by weight, 65 to 85 parts by weight, 65 to 80 parts by weight, 65 to 75 parts by weight, 65 to 70 parts by weight, 70 to 85 parts by weight, 70 to 80 parts by weight, 70 to 75 parts by weight, 75 to 85 parts by weight, or 80 to 85 parts by weight, relative to 100 parts by weight of the total cosmetic composition.

[0031] In addition, the composition of the present invention contains high amounts of phenylbenzimidazole sulfonic acid and terephthalidene camphor sulfonic acid as water-soluble UV blocking substances, providing excellent moisturization and enabling the realization of a waterdrop formulation with a transparent or translucent appearance. In one embodiment, it was confirmed that when the cosmetic composition of the present invention is applied to the skin and rubbed, the emulsion breaks due to the force applied to the composition, and the aqueous phase, which is the internal phase, is released in the form of droplets (Fig. 2).

[0032] In one embodiment, the hardness of the composition may be 10 to 50 gf, 10 to 45 gf, 10 to 40 gf, 20 to 50 gf, 20 to 45 gf, 20 to 40 gf, 30 to 50 gf, 30 to 45 gf, 30 to 40 gf, 35 to 50 gf, 35 to 45 gf, 35 to 40 gf, 40 to 50 gf, or 40 to 45 gf.

[0033] The above silicone-based emulsifier may be one or more selected from the group consisting of PEG-10 dimethicone, lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, dimethicone / PEG-10 / 15 crosspolymer, dimethicone / polyglycerin-3 crosspolymer, lauryl dimethicone / polyglycerin-3 crosspolymer, cetyl PEG / PPG-10 / 1 dimethicone, and polyglyceryl-3 polydimethylsiloxyethyl dimethicone; more specifically, it may be PEG-10 dimethicone, dimethicone / PEG-10 / 15 crosspolymer, lauryl dimethicone / polyglycerin-3 crosspolymer, cetyl PEG / PPG-10 / 1 dimethicone, or lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, but not specifically It is not limited to this. In addition, the above silicone-based emulsifier may be included without limitation as long as it is a substance having a polydimethylsiloxane (PDMS) structure and an HLB (hydrophile-lipophile balance) value of 4 or less.

[0034] In one embodiment, the cosmetic composition may not include polyglyceryl-6 stearate and polyglyceryl-6 behenate.

[0035] In one embodiment, the cosmetic composition may not contain potassium cetyl phosphate.

[0036] In this specification, the term “not including” means that the component is not intentionally added, and includes cases where it is substantially not included, such as when it is inevitably included in the raw material itself or when it is incorporated in trace amounts during the manufacturing process. Specifically, it may include cases where the component is included in an amount of 1% or less, 0.5% or less, 0.1% or less, 0.05% or less, or 0.01% or less relative to 100% by weight of the total cosmetic composition.

[0037] The cosmetic composition for UV protection of the present invention may further include additives commonly used in the relevant technical field, such as preservatives, moisturizers, stabilizers, surfactants, solvents, skin conditioning agents, fragrances, inorganic UV blockers, powders, emollients, thickeners, emulsifiers, organic / inorganic pigments, fragrances, and antioxidants. Specifically, the moisturizer may be, for example, glycerin, butylene glycol, propanediol, propylene glycol, or methylpropanediol; the antioxidant may be, pentaerythrityl tetra-di-t-butylhydroxyhydrocinnamate; and the preservative may be, phenoxyethanol, pentylene glycol, hexanediol, ethylhexylglycerin, or caprylyl glycol, but is not particularly limited thereto. The above additives may be included in amounts commonly used in the relevant technical field as needed by a person skilled in the art, for example, in an amount of 0.1 to 10 parts by weight each relative to 100 parts by weight of the total sunscreen cosmetic composition.

[0038] In addition, the above cosmetic composition may be prepared in a formulation including a lotion (skin lotion), skin softener, skin toner, astringent, lotion, milk lotion, moisture lotion, nourishing lotion, massage cream, cream, sun cream, nourishing cream, moisture cream, hand cream, foundation, essence, nourishing essence, pack, soap, cleansing foam, cleansing lotion, cleansing cream, body lotion, body cleanser, suspension, gel, powder, paste, compact, mask pack or sheet, or aerosol composition, but is not particularly limited thereto. Compositions of such formulations may be prepared according to methods commonly used in the relevant technical field.

[0039] Another aspect provides a method for preparing a cosmetic composition for UV protection, comprising: an aqueous phase comprising a water-soluble or water-dispersible UV-blocking substance; and an oil phase comprising an oil-soluble UV-blocking substance and a silicone-based emulsifier.

[0040] In one embodiment, the manufacturing method may comprise the steps of: heating an oil phase component, cooling it to room temperature, and uniformly mixing it to prepare an oil phase mixture; dissolving an aqueous phase component at room temperature to prepare an aqueous mixture; slowly adding the aqueous mixture at room temperature while stirring the oil phase mixture; and increasing the stirring speed to emulsify the cosmetic composition until it reaches a desired hardness.

[0041] In one embodiment, the heating of the oil phase component may be to 50 to 100°C, 50 to 95°C, 50 to 90°C, 60 to 100°C, 60 to 95°C, 60 to 90°C, 70 to 100°C, 70 to 95°C, 70 to 90°C, or 75 to 85°C.

[0042] In this specification, the term "room temperature" means a temperature of about 15 to 25°C.

[0043] In one embodiment, the desired hardness of the cosmetic composition may be 10 to 50 gf, 10 to 45 gf, 10 to 40 gf, 20 to 50 gf, 20 to 45 gf, 20 to 40 gf, 30 to 50 gf, 30 to 45 gf, 30 to 40 gf, 35 to 50 gf, 35 to 45 gf, 35 to 40 gf, 40 to 50 gf, or 40 to 45 gf.

[0044] The same parts as those described in the above cosmetic composition also apply to the above manufacturing method.

[0045] The cosmetic composition of the present invention contains a high amount of phenylbenzimidazole sulfonic acid and terephthalidendicamphorsulfonic acid, which provides excellent moisture, and is a water-in-oil cosmetic composition in which the content of the internal phase (aqueous phase) is 60% or more by applying polysilicon-15 to the oil phase, and can realize a water drop formulation with a transparent or translucent appearance.

[0046] Figure 1 shows the results of confirming the formulation stability of the composition of Example 1 during 12 weeks of storage.

[0047] Figure 2 shows the results of confirming the aqueous phase release effect following rubbing after applying the composition of Example 1 to the skin.

[0048] Figure 3 shows the results of comparing the hardness of the composition of Example 1 and the composition of Comparative Example 1.

[0049] The following experimental examples will be explained in more detail. However, these experimental examples are for illustrative purposes only, and the scope of the present invention is not limited to these experimental examples.

[0050]

[0051] Preparation Example 1. Preparation of a cosmetic composition

[0052] - Example Manufacturing Method

[0053] 1) Heat the components in the oil phase to 80°C to dissolve the drometrizole trisiloxane, then cool to room temperature, and mix them evenly and prepare them in a main beaker.

[0054] 2) Dissolve the components in the aqueous solution thoroughly and prepare it at room temperature.

[0055] 3) Very slowly add the entire amount of the aqueous component to the oil phase being stirred (at room temperature).

[0056] 4) Increase the speed of the stirrer to raise the physical properties to standard hardness.

[0057]

[0058] - Comparative Example Manufacturing Method

[0059] 1) Heat the components in the aqueous solution to 80℃ and prepare them in the main beaker.

[0060] 2) Heat the components of the oil phase to 80℃ and prepare them in a beaker.

[0061] 3) Slowly add the oil phase to the stirring water phase (main mixer) to proceed with emulsification.

[0062]

[0063] The compositions of the examples and comparative examples are shown in Table 1 below.

[0064]

[0065] Classification | Ingredient Name | Example 1 (Weight%) | Comparative Example 1 (Weight%) Oil Phase | Polysilicon-15 | 55 Drometrizole Trisiloxane | 55 Cyclopentasiloxane | 14 | 14 PEG-10 Dimethicone | 1 Polyglyceryl-6 Stearate | Polyglyceryl-6 Behenate-1 Aqueous Phase | Purified Water | 39.2 | 38.7 Phenylbenzimidazole Sulfonic Acid | 44 Terephthalilyliden Dicamphor Sulfonic Acid (33% w / w aqueous solution) | 88 Tromethamine | 3.8 | 3.8 Glycerin | 20 | 20 Potassium Cetyl Phosphate | 0.5

[0066]

[0067] Experimental Example 1. Confirmation of long-term stability

[0068] In this experimental example, the long-term stability of the composition of Example 1 was confirmed. Specifically, the prepared composition was equally dispensed into three vials, and after storing each at room temperature (RT, 20-25℃), refrigeration (4℃), and accelerated conditions (40℃) for 12 weeks, the stability of the formulation was visually observed and is shown in Fig. 1.

[0069] As shown in Figure 1, the composition of Example 1 maintained its initial manufacturing characteristics under all conditions even after 12 weeks of storage, confirming that it has excellent long-term stability.

[0070]

[0071] Experimental Example 2. Confirmation of aqueous phase release effect due to rubbing

[0072] In this experimental example, an appropriate amount of the composition of Example 1 was applied to the skin on the back of the hand, and the change in appearance was observed visually while rubbing with a finger, as shown in FIG. 2.

[0073] As shown in Figure 2, it was confirmed that when the composition of Example 1 is applied to the skin and rubbed, the emulsion is broken by the force applied to the composition, and the aqueous phase, which is the internal phase, is released in the form of droplets.

[0074]

[0075] Experimental Example 3. Hardness Verification

[0076] In this experimental example, the hardness of the composition of Example 1 and the composition of Comparative Example 1 was observed visually and is shown in Fig. 3.

[0077] As shown in Figure 3, the composition of Comparative Example 1 exhibited flowability as a milky white, opaque, viscous liquid, making hardness measurement impossible, whereas the composition of Example 1 was confirmed to be capable of being realized as a translucent gel. When the hardness of the composition of Example 1 was measured using a texture analyzer, it was measured to be 40 gf (gram-force).

[0078]

[0079] Experimental Example 4. Confirmation of UV blocking ability according to difference in content

[0080] In this experimental example, the optimal content ranges of polysilicon-15, drometrizole trisiloxane, phenylbenzimidazole sulfonic acid, and terephthalidendicampersulfonic acid were determined. Specifically, a cosmetic composition was prepared according to the method of the example in Preparation Example 1 with the composition of Table 2 below, and the in vivo SPF was measured based on the ISO 24442:2022 method.

[0081] Classification Ingredient Name Example 2A (WH) Example 2B (WH) Example 2C (WH) Comparative Example 2A (WH) Comparative Example 2B (WH) Comparative Example 2C (WH) Oil Phase Polysilicon-15575365 Drometrizole Trisiloxane 535333 Cyclopentasiloxane 999131011 PEG-10 Dimethicone 111111 Aqueous Phase Purified Water 41.243.244.249.234.245.2 Phenylbenzimidazole Sulfonic Acid 344183 Terephthalilyliden Dicamphor Sulfonic Acid (33% w / w aqueous solution) 12986148 Tromethamine 3.83.83.83.83.83.83.8 Glycerin 202020202020 in vivo SPF 43.6 46.2 56.3 22.95-36.3

[0082]

[0083] As shown in Table 2, Comparative Example 2A exhibited the lowest UV protection effect with an SPF of 22.95 due to the lowest content of oil and water phase UV protection ingredients, whereas Examples 2A and 2B showed excellent UV protection effects with SPFs of 43.6 and 46.2, respectively. In particular, Example 2C demonstrated the best UV protection efficacy with an SPF of 56.3 through the optimal combination of oil phase components polysilicon-15 and drometrizole trisiloxane and water phase components phenylbenzimidazole sulfonic acid and terephthalidendicampersulfonic acid. On the other hand, it was impossible to measure the UV protection index of Comparative Example 2B because formulation implementation was impossible, and Comparative Example 2C showed a relatively lower UV protection efficacy of SPF 36.3 compared to Example 2C. Through these results, it was confirmed that the composition of the examples of the present invention, particularly Example 2C, is the optimal composition that satisfies both formulation stability and UV protection efficacy.

[0084]

[0085] Experimental Example 5. Confirmation of Optimal Emulsifier

[0086] In this experimental example, the optimal emulsifier that can be used in the cosmetic composition of the example was identified. Specifically, cosmetic compositions were prepared according to the preparation method of the example of Preparation Example 1 with the composition of Table 3 below, and the feasibility of realizing the formulation was evaluated.

[0087] Classification Component Name Example 3A (WH) Example 3B (WH) Example 3C (WH) Example 3D (WH) Example 3E (WH) Comparative Example 3A (WH) Comparative Example 3B (WH) Comparative Example 3C (WH) Oil Phase Polysilicon-15 55555555 Drometrizole Trisiloxane 55555555 Cyclopentasiloxane 99999999 PEG-10 Dimethicone 1-------Dimethicone / PEG-10 / 15 Crosspolymer-1------Lauryl Dimethicone / Polyglycerin-3 Crosspolymer--1-----Cetyl PEG / PPG-10 / 1 Dimethicone---1----Lauryl Polyglyceryl-3 Polydimethylsiloxy Ethyl Dimethicone----1---Polyglyceryl-4 Diisostearate / Polyhydroxystearate / Sebacate-----1--Sorbitan Sesquioleate------1-Polyglyceryl-2 Dipolyhydroxystearate-------1 Aqueous Water Purification 4 1.2 4 1.2 4 1.2 4 1.2 4 1.2 4 1.2 4 1.2 2 Phenylbenzimidazole Sulfonic Acid 3 3 3 3 3 3 Terephthalylidene Dicamphor Sulfonic Acid (33% w / w aqueous solution) 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Tromethamine 3 8 3 8 3 8 3 8 3 8 3 8 3 8 3 8 3 8 8 8 Glycerin 2 0 20 20 20 20 20 Formulation Implementation Status OOOOOXXX

[0088]

[0089] As shown in Table 3, compositions of Examples 3A to 3E containing silicone-based emulsifiers such as PEG-10 dimethicone, dimethicone / PEG-10 / 15 crosspolymer, lauryl dimethicone / polyglycerin-3 crosspolymer, cetyl PEG / PPG-10 / 1 dimethicone, or lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone were found to have a transparent and stable formulation, whereas compositions of Comparative Examples 3A to 3C containing non-silicone-based emulsifiers such as polyglyceryl-4 diisostearate / polyhydroxystearate / sebacate, sorbitan sesquioleate, or polyglyceryl-2 dipolyhydroxystearate were found not to have a stable formulation.

[0090]

[0091] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical spirit or essential features of the present invention. Therefore, the experimental examples described above should be understood as illustrative in all respects and not restrictive.

Claims

1. A cosmetic composition for UV protection comprising: an aqueous phase comprising a water-soluble or water-dispersible UV-blocking substance; and an oil phase comprising an oil-soluble UV-blocking substance and a silicone-based emulsifier.

2. A cosmetic composition according to claim 1, wherein the water-soluble or water-dispersible UV blocking substance is one or more selected from the group consisting of phenylbenzimidazole sulfonic acid, terephthalylidene dicamphor sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, benzophenone-4, and benzophenone-5.

3. A cosmetic composition according to claim 2, characterized in that the water-soluble UV blocking substance is phenylbenzimidazole sulfonic acid and terephthalidendicampersulfonic acid.

4. A cosmetic composition according to claim 3, wherein the phenylbenzimidazole sulfonic acid is included in an amount of 3 to 4 parts by weight per 100 parts by weight of the total cosmetic composition.

5. A cosmetic composition according to claim 3, wherein the terephthalilylidendicampersulfonic acid is included in an amount of 2.3 to 4 parts by weight per 100 parts by weight of the total cosmetic composition.

6. In claim 1, the useful UV blocking material is Polysilicon-15, Drometrizole Trisiloxane (DMTS), Homosalate, Ethylhexyl Salicylate, Octocrylene, Ethylhexyl Methoxycinnamate, Butyl Methoxydibenzoylmethane, Bis-ethylhexyloxyphenolmethoxyphenyltriazine, Ethylamino Hydroxybenzoyl Hexyl Benzoate, Ethylhexyl Triazone, Isoamyl Para-Methoxycinnamate A cosmetic composition comprising one or more selected from the group consisting of p-methoxycinnamate, disodium phenyl dibenzimidazole tetrasulfonate, and 4-methylbenzylidene camphor.

7. A cosmetic composition according to claim 6, characterized in that the useful ultraviolet blocking material is polysilicon-15 and drometrizole trisiloxane.

8. A cosmetic composition according to claim 7, wherein the polysilicon-15 is included in an amount of 4 to 7 parts by weight relative to 100 parts by weight of the total cosmetic composition.

9. A cosmetic composition according to claim 7, wherein the drometrizole trisiloxane is included in an amount of 1 to 5 parts by weight per 100 parts by weight of the total cosmetic composition.

10. A cosmetic composition according to claim 1, characterized in that the cosmetic composition is a water-in-oil formulation.

11. A cosmetic composition according to claim 10, wherein the content of the aqueous phase, which is the internal phase, is 60 to 85 parts by weight relative to 100 parts by weight of the total cosmetic composition.

12. A cosmetic composition according to claim 1, wherein the silicone-based emulsifier is one or more selected from the group consisting of PEG-10 dimethicone, lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, dimethicone / PEG-10 / 15 crosspolymer, dimethicone / polyglycerin-3 crosspolymer, lauryl dimethicone / polyglycerin-3 crosspolymer, cetyl PEG / PPG-10 / 1 dimethicone, and polyglyceryl-3 polydimethylsiloxyethyl dimethicone.

Images