WO2017057677A1

WO2017057677A1 - Sunscreen cosmetic

Info

Publication number: WO2017057677A1
Application number: PCT/JP2016/079012
Authority: WO
Inventors: 松井　隆; 太一原田
Original assignee: 株式会社資生堂
Priority date: 2015-09-30
Filing date: 2016-09-30
Publication date: 2017-04-06
Also published as: CN108135817B; CN108135817A

Abstract

The purpose of the present invention is to provide a sunscreen cosmetic which can exhibit a high ultraviolet ray blocking effect even when the amounts of liquid ultraviolet ray absorbers ethylhexyl methoxycinnamate and octocrylene are reduced, and which is stable, has excellent feeling upon use, and never whitens unnaturally upon application. The present invention provides a sunscreen cosmetic comprising (A) 0.5 to 10.0% by mass of t-butyl methoxydibenzoylmethane and/or diethylamino hydroxybenzoyl hexyl benzoate, (B) 0.5 to 5.0% by mass of bis-ethylhexyloxyphenol methoxyphenyl triazine, (C) 0.5 to 5.0% by mass of ethylhexyl triazone, (D) 5 to 50% by mass of a specific ester oil, and (E) 1.5 to 12% by mass of an ultraviolet ray scattering agent, wherein the total compounding amount of the components (A), (B) and (C) is 1.5 to 15% by mass and the compounding amount of ethylhexyl methoxycinnamate and octocrylene is 3% by mass or less.

Description

Sunscreen cosmetics

The present invention relates to a sunscreen cosmetic. More specifically, sunscreen cosmetics exhibiting high UV protection ability in a wide wavelength range from UVA to UVB and having excellent stability even if the blending amount of UV absorbers that have been widely used in the past is reduced. About.

Protecting the skin from the damage of ultraviolet rays is one of the important issues in skin care and body care, and various UV care cosmetics have been developed to minimize the adverse effects of ultraviolet rays on the skin. Sunscreen cosmetics (sunscreen cosmetics), a type of UV care cosmetics, absorb or scatter UVA and UVB on the skin by covering the skin with a coating film containing a UV absorber or UV scattering agent. It is a cosmetic intended to suppress the amount of ultraviolet rays to reach and protect the skin from the harm of ultraviolet rays (Non-patent Document 1).

Ethylhexyl methoxycinnamate and octocrylene (2-cyano-3,3-diphenylprop-2-enoic acid-2-ethylhexyl) are conventional sunscreen cosmetics as liquid UV absorbers having an absorption wavelength mainly in the UVB region. It was widely used. However, these UV absorbers may irritate the skin of users with sensitive skin. For example, skin external preparations have been proposed in which the stimulation of ethylhexyl methoxycinnamate is mitigated by blending with polypropylene glycol dimethyl ether. (Patent Document 1).

Patent Document 2 discloses a so-called non-chemical sunscreen cosmetic that does not contain ethylhexyl methoxycinnamate, octocrylene, and avobenzone, but contains a combination of a plurality of powder components having an ultraviolet scattering effect, and is applied to the face. In some cases, cosmetics that do not irritate the eyes are obtained. However, in order to obtain a high UV protection effect (high SPF) with only the powder component, it is necessary to add a large amount of the powder component, and unnatural whiteness may occur when applied to the skin.

On the other hand, many organic ultraviolet absorbers other than ethylhexyl methoxycinnamate and octocrylene are solid at room temperature. In the conventional sunscreen cosmetics, liquid ethylhexyl methoxycinnamate and octocrylene also played a role as a solvent, and no problem occurred. However, if the blending amount of these liquid UV absorbers is reduced, co-blended solid UV absorbers may precipitate, and if the amount of solvent (oil) in the solid UV absorbers is increased to prevent precipitation, UV rays for the entire cosmetics There has also been a concern about the problem of usability such that the blending ratio of the absorbent is lowered and a sufficient UV protection effect cannot be obtained, and stickiness due to oil is generated.

Japanese Patent No. 3683533 Japanese Patent Laying-Open No. 2015-124172

Therefore, the problem in the present invention is that even if the amount of liquid UV absorbers such as ethylhexyl methoxycinnamate and octocrylene is suppressed, a high UV protection effect is exhibited, and it is stable and excellent in usability, and does not become unnaturally whitened when applied. It is to provide stop cosmetics.

As a result of diligent research to solve the above problems, the present inventors have combined a specific solid ultraviolet absorber and a specific oil component to achieve a high ultraviolet protective effect even if the mixing of the liquid ultraviolet absorber is suppressed. At the same time as achieving (high SPF and high PA), the present inventors have found that a low-irritant sunscreen cosmetic that is excellent in stability and usability and that does not become unnaturally whitened upon application can be obtained.

That is, the present invention
(A) 0.5-10.0% by weight of t-butylmethoxydibenzoylmethane and / or hexyl diethylaminohydroxybenzoylbenzoate;
(B) 0.5 to 5.0% by weight of bisethylhexyloxyphenol methoxyphenyl triazine;
(C) 0.5 to 5.0% by weight of ethylhexyltriazone;
(D) 5 to 50% by mass of an ester oil having a solubility at 25 ° C. in the components (A), (B) and (C) of 10% or more; and (E) 1.5 to 12% by mass of ultraviolet rays Contains scattering agents,
The total blending amount of the components (A), (B) and (C) is 1.5 to 15% by mass, and the blending amount of ethylhexyl methoxycinnamate and octocrylene is 3% by mass or less. Provide sunscreen cosmetics.

The sunscreen cosmetics of the present invention exhibit a high UV protection effect by a combination of specific solid UV absorbers, even if the amount of liquid UV absorbers ethylhexyl methoxycinnamate and octocrylene is suppressed or not added, and A low-irritant sunscreen cosmetic that is stable and excellent in usability and does not become unnaturally whitened when applied. Moreover, when an appropriate amount of a powder (ultraviolet scattering agent) having an ultraviolet scattering effect was blended with the sunscreen cosmetic of the present invention, an unexpected effect that the SPF was synergistically improved was obtained. Furthermore, when each compounding quantity of the said component (A), (B), (C) and (E) was adjusted to the specific ratio, the well-balanced ultraviolet-ray protective effect was able to be acquired in the wavelength range of UVA and UVB.

The sunscreen cosmetic of the present invention comprises (A) t-butylmethoxydibenzoylmethane and / or hexyl diethylaminohydroxybenzoyl benzoate, (B) bisethylhexyloxyphenol methoxyphenyltriazine, which are solid UV absorbers at room temperature, and (C) It contains ethylhexyltriazone as an essential component.

(A) t-Butylmethoxydibenzoylmethane and / or hexyl diethylaminohydroxybenzoyl benzoate t-butylmethoxydibenzoylmethane is a kind of benzophenone-based UV absorber having a maximum absorption wavelength in the UVA region. Widely used.
The t-butylmethoxydibenzoylmethane used in the present invention may be a commercially available product, and examples thereof include those commercially available from DSM Nutrition Japan Co., Ltd. under the name “Pulsol 1789”.

Diethylaminohydroxybenzoyl hexyl benzoate is a kind of paraaminobenzoic acid (PABA) ultraviolet absorber having a maximum absorption wavelength in the UVA region.
The hexyl diethylaminohydroxybenzoyl benzoate used by this invention may be a commercial item, for example, what is marketed from BASF Japan Ltd. by the name of "Ubinal A plus" can be illustrated.

The component (A) in the sunscreen cosmetic of the present invention may contain one or both of t-butylmethoxydibenzoylmethane and hexyl diethylaminohydroxybenzoylbenzoate. The total amount of t-butylmethoxydibenzoylmethane and diethylaminohydroxybenzoyl hexyl benzoate is 0.5 to 10% by mass, preferably 1 to 9% by mass, more preferably 2 to 8% by mass.

(B) Bisethylhexyloxyphenol methoxyphenyl triazine Bisethylhexyloxyphenol methoxyphenyl triazine is a kind of triazine-based ultraviolet absorber, and has a characteristic of absorbing ultraviolet rays in a wide wavelength range from UVA to UVB, and has high light stability. It is known to have sex.
The bisethylhexyloxyphenol methoxyphenyl triazine used in the present invention may be a commercially available product, for example, those commercially available from BASF Japan Ltd. under the name “Tinosorb S”.

The blending amount of component (B), that is, bisethylhexyloxyphenol methoxyphenyl triazine in the sunscreen cosmetic of the present invention is 0.5 to 5% by mass, preferably 0.6 to 3% by mass, more preferably 0.00%. 7-2% by mass.

(C) Ethylhexyltriazone Ethylhexyltriazone is a kind of triazine-based UV absorber, but has a property of absorbing UV rays particularly in the UVB wavelength region (maximum absorption wavelength = 312 nm) and has excellent stability. It is.
The ethylhexyl triazone used in the present invention may be a commercially available product, and examples thereof include those commercially available from BASF Japan Ltd. under the name “Ubinal T150”.

The amount of component (C), that is, ethylhexyltriazone in the sunscreen cosmetic of the present invention is 0.5 to 5% by mass, preferably 0.7 to 4% by mass, more preferably 0.8 to 3% by mass. %.

In the sunscreen cosmetic of the present invention, the total blending amount of the components (A), (B) and (C) (hereinafter sometimes referred to as “specific solid ultraviolet absorber”) is 1.5 to 15. % By mass, preferably 3 to 14% by mass, more preferably 5 to 12% by mass, and most preferably 6 to 10% by mass. When the total blending amount is less than 1.5% by mass, sufficient UV protection ability (for example, SPF15 or more) cannot be obtained, and when it exceeds 15% by mass, crystal precipitation may occur.

In the sunscreen cosmetic of the present invention, it is more preferable to adjust so that the difference in the blending amounts of the components (A), (B) and (C) is within 4% by mass. For example, the ratio of the blend amounts of components (A), (B) and (C) is (A) :( B) :( C) = 23-8: 0.7-2: 0.8-3 By making the difference between the blending amounts of (A), (B) and (C) within 4% by mass within a range, the UV protection effect is exerted in a well-balanced manner in the wavelength region of UVA and UVB, and high SPF And PA can be achieved.

(D) Ester oil The component (D) used in the present invention is an ester oil, and the solubility of each of the components (A), (B), and (C) in the ester oil at 25 ° C. is 10% (weight / weight). (The ester oil of component (D) may hereinafter be referred to as “specific ester oil”).

Specific ester oils used in the present invention include diisopropyl sebacate, diethylhexyl succinate, glyceryl tri-2-ethylhexanoate, pentaerythrityl tetra-2-ethylhexanoate, cetyl 2-ethylhexanoate, carbon number 12 1 to 2 or more of ˜15 alkylbenzoates and isonononyl isononanoate. Particularly preferably, diisopropyl sebacate and / or diethylhexyl succinate are used.

The blending amount of the specific ester oil (component (D)) in the sunscreen cosmetic of the present invention is 5 to 50% by mass, preferably 8 to 45% by mass, more preferably 10 to 40% by mass. If the blending amount is less than 5% by mass, a part of the specific solid ultraviolet absorber may be precipitated, and even if the blending amount exceeds 50% by mass, no further improvement in the characteristics is recognized.
From the viewpoint of cosmetic stability, the ratio of the specific ester oil (D) to the total amount of the specific solid ultraviolet absorbers (components (A), (B) and (C)) ([[ (A) + (B) + (C)] / (D)) is preferably 1/2 or less, more preferably 1/3 or less, and even more preferably 1/5 or less.

In the sunscreen cosmetic of the present invention, a sufficiently high UV protection ability (for example, SPF 15 or higher) is achieved by combining the specific solid UV absorbers ((A), (B) and (C). In addition, when the specific ester oil is blended together, the problem of precipitation of the solid ultraviolet absorber does not occur, so that the liquid ultraviolet absorber that has been blended in the conventional sunscreen cosmetics, that is, methoxysilicate. It is possible to suppress the blending amount of ethyl hexyl and octocrylene.

Therefore, the total amount of ethylhexyl methoxycinnamate and octocrylene in the sunscreen cosmetic of the present invention is 3% by mass or less, preferably 2% by mass or less, more preferably 1% by mass. Furthermore, the sunscreen cosmetic of the present invention includes an embodiment that does not contain ethylhexyl methoxycinnamate and octocrylene.

The sunscreen cosmetic of the present invention contains, as a component (E), a powder (ultraviolet scattering agent) that physically shields ultraviolet rays by reflection / scattering.
The ultraviolet scattering agent used in the present invention is not particularly limited as long as it is a powder used as an ultraviolet scattering agent in the cosmetic field. Specific examples include one selected from titanium oxide, zinc oxide, barium sulfate, iron oxide, talc, mica, sericite, kaolin, titanium mica, bitumen, chromium oxide, chromium hydroxide, silica, cerium oxide, and the like. Two or more types can be mentioned. In particular, it is preferable from the viewpoint of optical properties to use a powder having a refractive index of 1.5 or more, such as zinc oxide or titanium oxide.

By dispersing the surface of the ultraviolet light scattering agent, the dispersibility in oil and the water resistance are improved. In the present invention, the ultraviolet light scattering agent subjected to the surface hydrophobicity treatment is also preferably used.
Surface treatment methods include silicone treatment such as methylhydrogenpolysiloxane and methylpolysiloxane; alkylsilane treatment; fluorine treatment with perfluoroalkyl phosphate ester, perfluoroalcohol, etc .; amino acid treatment with N-acyl glutamic acid, etc. And lecithin treatment; metal soap treatment; fatty acid treatment; alkyl phosphate ester treatment and the like.

Although the ultraviolet scattering agent used by this invention is not specifically limited, Usually, an average primary particle diameter of 100 nm or less is preferable, More preferably, it is 80 nm or less. When the average primary particle size greatly exceeds 100 nm, there is a tendency to cause white floating or white residue.
In addition, the average primary particle diameter in this invention is a value calculated | required as an arithmetic average of the long axis and short axis of a particle | grain from a transmission electron micrograph, for example.
The particle shape of the ultraviolet light scattering agent is not particularly limited, and may be in the form of primary particles or may form an aggregated secondary aggregate. Further, the shape such as a spherical shape, an elliptical shape, and a crushed shape is not particularly limited.

The blending amount of the ultraviolet light scattering agent in the sunscreen cosmetic of the present invention is 1.5 to 12% by mass, preferably 2 to 10% by mass, and most preferably 2 to 6% by mass. The UV protection effect obtained when the blending amount is less than 1.5% by mass is not sufficient, and when blending exceeding 12% by mass, the whiteness at the time of application becomes noticeable, and a powdery feeling of use may occur. is there.

In the sunscreen cosmetics of the present invention, a high UV protection effect is obtained by blending the components (A), (B), (C) and (E), but the total of the components (C) and (E). A high SPF can be achieved by adjusting the blending amount to 8% by mass or more.

The sunscreen cosmetic of the present invention is in addition to the essential components of the specific solid ultraviolet absorber ((A), (B) and (C)), the specific ester oil (D) and the ultraviolet scattering agent (E). Further, other optional components that can be usually blended in sunscreen cosmetics may be included within a range that does not impair the effects of the present invention.

Other optional components are not particularly limited, and include, for example, ultraviolet absorbers other than the specific solid ultraviolet absorber (excluding ethylhexyl methoxycinnamate and octocrylene), and by combining these, UVA and / or UVB regions Can further improve the UV protection ability.
The ultraviolet absorbers other than the specific solid ultraviolet absorbers ((A), (B) and (C)) can be selected from those usually used in cosmetics and are not particularly limited. For example, para-aminobenzoic acid derivatives, salicylic acid derivatives, cinnamic acid derivatives, β, β-diphenyl acrylate derivatives, benzophenone derivatives, benzylidene camphor derivatives, phenylbenzimidazole derivatives, triazine derivatives, phenylbenzotriazole derivatives, anthranyl derivatives, imidazoline derivatives And one or more selected from benzalmalonate derivatives, 4,4-diarylbutadiene derivatives and the like.

Other optional components include water-soluble polymers, oil-soluble polymers, waxes, alcohols, hydrocarbon oils, fatty acids, higher alcohols, fatty acid esters, silicone oils, surfactants, powder components other than UV scattering agents, Although a medicine etc. are mentioned, it is not limited to these illustrations.

Examples of the water-soluble polymer include homopolymers or copolymers of 2-acrylamido-2-methylpropanesulfonic acid (hereinafter abbreviated as “AMPS”). The copolymer is a copolymer composed of a comonomer such as vinyl pyrrolidone, acrylic acid amide, sodium acrylate, or hydroxyethyl acrylate. That is, an AMPS homopolymer, a vinylpyrrolidone / AMPS copolymer, a dimethylacrylamide / AMPS copolymer, an acrylic amide / AMPS copolymer, a sodium acrylate / AMPS copolymer, and the like are exemplified.

Furthermore, carboxyvinyl polymer, ammonium polyacrylate, sodium polyacrylate, sodium acrylate / alkyl acrylate / sodium methacrylate / alkyl methacrylate copolymer, carrageenan, pectin, mannan, curdlan, chondroitin sulfate, starch, Glycogen, gum arabic, sodium hyaluronate, tragacanth gum, xanthan gum, mucoitin sulfate, hydroxyethyl guar gum, carboxymethyl guar gum, guar gum, dextran, kerato sulfate, locust bean gum, succinoglucan, chitin, chitosan, carboxymethyl chitin, agar etc. Illustrated.

Examples of the oil-soluble polymer include trimethylsiloxysilicic acid, alkyl-modified silicone, polyamide-modified silicone, dimethicone crosspolymer, (dimethicone / vinyl dimethicone) crosspolymer, polymethylsilsesquioxane, and the like.

Examples of waxes include beeswax, candelilla wax, carnauba wax, lanolin, liquid lanolin, jojoba wax and the like.

Examples of alcohols include lower alcohols such as ethanol and isopropanol, and polyhydric alcohols such as ethylene glycol, propylene glycol, 1,3-butylene glycol, dipropylene glycol, and polybutylene glycol.

Examples of the hydrocarbon oil include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, microcrystalline wax, polyethylene wax, and Fischer-Tropsch wax.

Examples of fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, arachidonic acid and the like.

Higher alcohols include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, aralkyl alcohol, batyl alcohol, chimyl alcohol, carnervir alcohol, ceryl alcohol, coryranyl alcohol, myricyl alcohol, lacteryl alcohol, elayl Illustrative examples include diol alcohol, isostearyl glyceryl ether, octyl alcohol, triacontyl alcohol, ceralkyl alcohol, cetostearyl alcohol, oleyl alcohol, lanolin alcohol, hydrogenated lanolin alcohol, isostearyl alcohol, hexyldecanol, octyldecanol and the like.

Examples of silicone oils include methylpolysiloxane, octamethylsiloxane, decamethyltetrasiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and the like. be able to. Preferred examples include octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane.

Examples of the surfactant include anionic, cationic, nonionic, and amphoteric surfactants, and include silicone-based or hydrocarbon-based surfactants.
Examples of powder components other than the ultraviolet light scattering agent (component E) include nylon and acrylic polymer spherical powder, silica powder, silicone powder, metal oxide powder surface-treated with a surface treatment agent not containing metal, and the like. .

Examples of the drug include salts of L-ascorbic acid and its derivatives, glycyrrhizic acid and its derivatives such as dipotassium glycyrrhizinate and monoammonium glycyrrhizinate, glycyrrhetinic acid and its derivatives such as stearyl glycyrrhetinate, allantoin, tranexamic acid and its derivatives And salts of alkoxysalicylic acid and its derivatives, glutathione and its derivatives, allantoin, azulene and the like.

The sunscreen cosmetic of the present invention can be provided in the form of an oil-in-water emulsified cosmetic, a water-in-oil emulsified cosmetic, or an oily cosmetic. As a specific dosage form, there are dosage forms such as sunscreen milky lotion and sunscreen cream, which can be produced using a conventional method suitable for each dosage form.

Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto. Unless otherwise specified, the blending amount is expressed in mass% with respect to the system in which the component is blended.

A sample of an emulsified sunscreen cosmetic was prepared according to the formulations listed in Tables 1 and 2 below. Subsequently, (1) SPF value, (2) crystal precipitation, and (3) whiteness at the time of application | coating were evaluated as follows about the sample of each prepared example. The evaluation results are also shown in Table 1.

(1) SPF
The Sun Protection Factor (SPF) was measured using an SPF measuring apparatus “SPF MASTER” (registered trademark) (Shiseido).

(2) Crystal Precipitation A sample left at 0 ° C. was observed with a polarizing microscope to visually determine whether or not crystal precipitation was observed.
A: Crystal precipitation is not recognized.
B: Crystal precipitation was observed.

(3) Whiteness at the time of application The female panel (10 persons) evaluated the whiteness after apply | coating the sample of each Example and a comparative example based on the following evaluation criteria.
(Evaluation)
A: The number of people who answered that the white color after application was unacceptable was 3 or less.
B: Four or more people answered that the white color after application was unacceptable.

As is clear from the results shown in Table 1, the conventional sunscreen cosmetics (Comparative Example 1) containing the liquid ultraviolet absorbers ethylhexyl methoxycinnamate and octocrylene have a high UV protection effect of SPF = 22. It was. In Comparative Example 2 in which all of the ultraviolet absorber of Comparative Example 1 was replaced with an ultraviolet scattering agent, the same level of UV protection effect (SPF = 19) was obtained, but unnatural whiteness during coating was unacceptable. . On the other hand, when the liquid ultraviolet absorber of Comparative Example 1 is replaced with a solid ultraviolet absorber, crystals are precipitated (Comparative Example 3), and crystal precipitation can be prevented by blending a specific ester oil, but a sufficient ultraviolet protective effect. Was not obtained (Comparative Example 4).

In the results shown in Table 2, by adding 5% by mass of an ultraviolet scattering agent to Comparative Example 4, an ultraviolet protective effect equivalent to that of the conventional product (Comparative Example 1) (SPF = 22) is shown to be achieved (Example 1). This Example 1 is a composition in which the compositions of Comparative Example 4 and Comparative Example 5 in Table 1 are combined, but the SPF is synergistic with Comparative Example 4 (SPF = 6) and Comparative Example 5 (SPF = 6). This is a surprising effect. “Synergistically improving” means a simple sum of effects obtained by A and B alone when a composition containing A (effect a) and a composition containing B (effect b) are combined ( It means that the effect exceeding a + b) is acquired.

In Comparative Example 6 shown in Table 2, since the blending amount of the ultraviolet scattering agent exceeds the predetermined range (1.5 to 12% by mass) of the present invention, the whiteness at the time of application is not acceptable. became. On the contrary, in Comparative Example 7 where the blending amount of the ultraviolet scattering agent is less than the predetermined range, a sufficient ultraviolet protective effect was not obtained (SPF = 7).

Example 2 in which a part of the oil-based medium in Example 1 was replaced with water, and Examples 3 and 4 in which the blending amount and type of the ultraviolet scattering agent in Example 2 were changed within the scope of the present invention. (SPF), stability and usability, and satisfactory in appearance.
The samples listed in Tables 1 and 2 did not feel irritation even when applied to the face except for Comparative Example 1.

Furthermore, a sample of an emulsified sunscreen cosmetic was prepared according to the formulation listed in Table 3 below. Subsequently, (1) SPF value and (2) PA value were evaluated as follows about the sample of each prepared example. The evaluation results are also shown in Table 3.

(2) PA
The Protection Grade of UVA (PA) was measured using a tabletop xenon light resistance tester “Atlas Suntest XLS +” (Toyo Seiki Seisakusho) and a spectrophotometer “U-4100” (Hitachi Ltd.). The case where PA calculated using the apparatus was ++ or more was designated as A, and the case where PA was ≦ PA ++ was designated as B.

The difference between the component (A) and the component (C) and the component (B) and the component (C) is 4% by mass or less, and the total amount of (C) ethylhexyl triazone and (E) the ultraviolet scattering agent is The sunscreen cosmetics (Examples 7 and 8) of 8% by mass or more exhibited a very excellent protective effect in a wide wavelength range from UVA to UVB of 15 or more SPF and PA ++ or more in a well-balanced manner.

On the other hand, in the sunscreen cosmetics (Example 5) in which the difference between the component (A) and the component (C) and the difference between the component (B) and the component (C) exceeds 4% by mass, the SPF value is very high. Although it was a high value (27), it was PA ++. Further, in the cosmetic (Example 6) in which the total blending amount of (C) ethylhexyltriazone and (E) ultraviolet light scattering agent was less than 8% by mass, PA ++ or higher was achieved, but the SPF value was slightly decreased. . That is, when importance is attached to the balance of UV protection ability in the UVA and UVB regions, the blending amount difference between component (A) and component (C), component (B) and component (C), and component (C) and It turned out that it is preferable to make the total compounding quantity of a component (E) into the said range.

Claims

(A) 0.5-10.0% by weight of t-butylmethoxydibenzoylmethane and / or hexyl diethylaminohydroxybenzoylbenzoate;
(B) 0.5 to 5.0% by weight of bisethylhexyloxyphenol methoxyphenyl triazine;
(C) 0.5 to 5.0% by weight of ethylhexyltriazone;
(D) 5 to 50% by weight of ester oil in which the solubility of the components (A), (B) and (C) at 25 ° C. is 10% or more; and (E) 1.5 to 12% by weight of ultraviolet light Contains scattering agents,
The total blending amount of the components (A), (B) and (C) is 1.5 to 15% by mass, and the blending amount of ethylhexyl methoxycinnamate and octocrylene is 3% by mass or less. Sunscreen cosmetics.
The cosmetic according to claim 1, wherein the ester oil (D) comprises diisopropyl sebacate and / or diethylhexyl succinate.
The cosmetic according to claim 1 or 2, which does not contain ethylhexyl methoxycinnamate and octocrylene.
The cosmetic according to any one of claims 1 to 3, wherein the (E) ultraviolet scattering agent is zinc oxide and / or titanium oxide powder.
The cosmetic according to any one of claims 1 to 4, wherein the SPF is 15 or more.