Cosmetic

Abstract

[Problem] To provide a cosmetic with excellent usability. [Solution] This cosmetic comprises: (A) a polyoxyalkylene dialkyl dimer diol ether; (B) a glycine derivative having a specific structure, or a salt thereof; and (C) water.

Description

Cosmetics

[0001] The present invention relates to a cosmetic preparation. Specifically, the present invention relates to a cosmetic preparation comprising a glycine derivative.

[0002] Cosmetics come in a variety of formulations, including lotions, emulsions, and creams, with lotions being an essential part of basic makeup. Lotions contain various surfactants to stably blend water-insoluble substances such as fragrances, oils, and oil-soluble drugs in addition to water-soluble substances such as water and moisturizing ingredients. For example, it has been proposed to incorporate alkylene oxide derivatives having specific structures as surfactants (see, for example, Patent Document 1).

[0003] In recent years, people have become increasingly concerned about the visibility of pores. One of the reasons for the visibility of pores is said to be parakeratosis caused by sebum. Glycine derivatives having a specific structure have been proposed as parakeratosis inhibitors (for example, Patent Document 2).

[0004] JP 2009-29909 A JP 2005-179342 A

[0005] According to the studies of the present inventors, it has been found that when a glycine derivative is used in a cosmetic, it tends to cause stickiness. The present inventors have surprisingly found that an excellent feeling in use can be achieved by using a cosmetic containing a combination of a glycine derivative and a polyoxyalkylene dialkyl dimer ether. The present invention is based on these findings.

[0006] According to the present invention, the following inventions are provided: [1] A cosmetic comprising (A) a polyoxyalkylene dialkyl dimer diol ether, (B) a glycine derivative represented by formula (1) or a salt thereof, and (C) water. (In the formula, R １ and R ２ are each independently a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an aralkyl group, an aminomethylcarbonyl group, an amidino group, an alkylcarbonyl group, an alkenylcarbonyl group, an arylcarbonyl group, or an aralkylcarbonyl group; R ３is a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, or an aralkyl group, provided that R １ , R ２ , and R ３ cannot be a hydrogen atom at the same time.) [2] R １ and R ２ one of R is a hydrogen atom and the other is a methyl group, an aminomethylcarbonyl group, or a benzylcarbonyl group; ３ is a hydrogen atom or a methyl group. [3] The cosmetic preparation according to [1] or [2], wherein component (B) is glycylglycine. [4] The cosmetic preparation according to any one of [1] to [3], wherein component (A) is PEG / polybutylene glycol-44 / 15 methyl ether hydrogenated dimer dilinoleyl. [5] The cosmetic preparation according to any one of [1] to [4], wherein the blending amount of component (A) is 0.01 to 2 mass% relative to the total amount of the cosmetic preparation. [6] The cosmetic preparation according to any one of [1] to [5], wherein the blending amount of component (B) is 0.1 to 5 mass% relative to the total amount of the cosmetic preparation. [7] The cosmetic preparation according to any one of [1] to [6], wherein the blending ratio of component (A) to component (B) is (A):(B) = 1:0.2 to 1:5 by mass. [8] The cosmetic according to any one of [1] to [7], wherein the blending amount of (D) oil component is 0% by mass or more and 1% by mass or less relative to the total amount of the cosmetic. [9] The cosmetic according to any one of [1] to [8], wherein the cosmetic is an aqueous cosmetic.

[0007] According to the present invention, it is possible to provide a cosmetic product that has an excellent feeling when used, and in particular, it is possible to provide a cosmetic product that can reduce stickiness after application. Specific Description of the Invention

[0008] The present invention relates to a cosmetic composition comprising (A) a polyoxyalkylene dialkyl dimer diol ether, (B) a glycine derivative having a specific structure, and (C) water.

[0009] (A) Polyoxyalkylenedialkyl dimer diol ether The cosmetic according to the present invention comprises (A) a polyoxyalkylenedialkyl dimer diol ether.

[0010] Component (A) is preferably represented by the following formula: Z-{O-[(AO) ａ - (EO) ｂ ]-R ２ In the formula, Z is a residue obtained by removing a hydroxyl group from dimer diol, preferably a dimer diol residue having 24 to 48 carbon atoms. AO is an oxyalkylene group having 3 or 4 carbon atoms, preferably an oxypropylene group or an oxybutylene group, and more preferably an oxybutylene group. The addition form of the oxyalkylene group having 3 or 4 carbon atoms and the oxyethylene group is a block, and the addition order is preferably AO followed by EO to the dimer diol. a and b are the average molar numbers of oxyalkylene groups and oxyethylene groups added, respectively, and are 1≦2×a≦150 and 1≦2×b≦150, preferably 2≦2×a≦70 and 5≦2×b≦120, and more preferably 2≦2×a≦50 and 10≦2×b≦100. The proportion of oxyethylene groups to the total of oxyalkylene groups and oxyethylene groups is 10 to 99% by mass, preferably 20 to 70% by mass. Each R is independently a hydrocarbon group having 1 to 4 carbon atoms, preferably a methyl group or an ethyl group.

[0011] Component (A) is preferably polyoxyethylene polyoxybutylene dimethyl dimer diol ether, and more preferably PEG / polybutylene glycol-44 / 15 methyl ether hydrogenated dimer dilinoleyl.

[0012] The component (A) may be blended in one or more types. The blending amount of the component (A) is preferably 0.01 to 2 mass%, more preferably 0.05 to 1.5 mass%, and even more preferably 0.1 to 1.3 mass%, relative to the total amount of the cosmetic.

[0013] (B) Glycine Derivative The cosmetic preparation according to the present invention comprises (B) a glycine derivative represented by formula (1) or a salt thereof. In the formula, R １ and R ２are each independently a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an aralkyl group, an aminomethylcarbonyl group, an amidino group, an alkylcarbonyl group, an alkenylcarbonyl group, an arylcarbonyl group, or an aralkylcarbonyl group. １ and R ２ One of R is a hydrogen atom, and the other is a methyl group, an aminomethylcarbonyl group, or a benzylcarbonyl group. ３ is a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, or an aralkyl group, and is preferably a hydrogen atom or a methyl group. １ , R ２ , and R ３ cannot simultaneously become a hydrogen atom.

[0014] Component (B) may be a salt of the glycine derivative represented by formula (1). The type of salt is not particularly limited as long as it is pharmaceutically acceptable, and examples include hydrochloride, sulfate, phosphate, hydrobromide, sodium salt, potassium salt, magnesium salt, calcium salt, magnesium salt, and ammonium salt. Examples of organic salts include acetate, lactate, maleate, fumarate, tartrate, methanesulfonate, p-toluenesulfonate, triethanolamine salt, and amino acid salt. Component (B) is preferably glycylglycine.

[0015] The component (B) may be blended in one or more types. The blending amount of the component (B) is preferably 0.1 to 5 mass %, more preferably 0.1 to 3 mass %, and even more preferably 0.3 to 2 mass %, relative to the total amount of the cosmetic.

[0016] The blending ratio of the component (A) to the component (B) is preferably (A):(B)=1:0.2 to 1:5 by mass, more preferably (A):(B)=1:0.3 to 1:4, and even more preferably (A):(B)=1:0.5 to 1:3.

[0017] (C) Water The cosmetic according to the present invention comprises (C) water. As the water, water used in cosmetics, quasi-drugs, etc. can be used, such as purified water, ion-exchanged water, tap water, etc. The blending amount of water is preferably 40 to 95% by mass, more preferably 50 to 90% by mass, based on the total amount of the cosmetic according to the present invention.

[0018] (D) Oil The cosmetic according to the present invention may contain (D) oil. From the viewpoint of transparency, it is preferable that the blend amount of (D) oil is small. The blend amount of oil is preferably 0% by mass or more and 1% by mass or less, more preferably 0% by mass or more and 0.1% by mass or less, relative to the total amount of the cosmetic. A preferred embodiment of the present invention is one in which the cosmetic according to the present invention does not contain oil (0% by mass). Examples of component (D) include silicone oil, hydrocarbon oil, higher fatty acid, higher alcohol, ester oil, liquid oil, solid oil, and semi-solid oil.

[0019] In addition to the above-mentioned components, the cosmetic of the present invention can contain optional components typically used in cosmetics and pharmaceuticals. Examples of optional components include moisturizers, lower alcohols, thickeners, sequestering agents, neutralizing agents, pH adjusters, antioxidants, preservatives, drugs, UV absorbers, powder components, fragrances, etc. One or more optional components can be contained as long as the effects of the present invention are achieved.

[0020] The cosmetic according to the present invention is preferably an aqueous cosmetic. In particular, the effects of the present invention are preferably exhibited when the cosmetic according to the present invention is made into a transparent or translucent aqueous cosmetic such as a lotion. The viscosity of the cosmetic according to the present invention is not limited, but is generally 1000 mPa·s or less, and particularly preferably 500 mPa·s or less, in terms of compatibility with the skin. In the present invention, "transparent or translucent" means that the cosmetic has an L value of 50 or more in the Lab color system (Hunter Lab system). The L value represents transparency, where the transparency of purified water is 100 and no light transmission is 0. In other words, the closer the L value is to 100, the higher the transparency. The L value can be measured using, for example, a color difference meter (Spectro color meter SE2000 (manufactured by Nippon Denshoku Co., Ltd.) or COLOR-EYE 7000A (manufactured by Gretag Macbeth)).

[0021] Examples of the cosmetic according to the present invention include skin care cosmetics (e.g., lotions, serums, packs, etc.), skin cleansers (e.g., facial cleansers, makeup removers, etc.), etc. Note that these forms are merely examples, and the cosmetic according to the present invention is not limited to these forms.

[0022] The cosmetic of the present invention can be produced by a conventional method. When the cosmetic of the present invention is an emulsion cosmetic, the emulsification method is not particularly limited.

[0023] The present invention will be described in detail based on the following examples, but the present invention is not limited to these examples. Unless otherwise specified, the contents are expressed in mass % relative to the total amount.

[0024] [Examples 1 to 4 and Comparative Examples 1 to 3] Aqueous cosmetic compositions of Examples 1 to 4 and Comparative Examples 1 to 3 were prepared according to the formulations shown in Table 1.

[0025] The cosmetics prepared above were applied to the skin by expert panels, and the "non-stickiness" after application was scored according to the following criteria, with the cosmetic of Comparative Example 1 as the standard, and an evaluation was performed using the average score of the five expert panels. The results obtained are shown in Table 1. +2: The cosmetic of Comparative Example 1 feels much less "sticky." +1: The cosmetic of Comparative Example 1 feels slightly less "sticky." 0: The cosmetic of Comparative Example 1 feels about the same level of "non-stickiness." -1: The cosmetic of Comparative Example 1 feels slightly more "sticky." -2: The cosmetic of Comparative Example 1 feels much more "sticky."

Claims

1. A cosmetic comprising: (A) a polyoxyalkylene dialkyl dimer ether; (B) a glycine derivative represented by formula (1) or a salt thereof; and (C) water. (In the formula, R １ and R ２ each independently represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an aralkyl group, an aminomethylcarbonyl group, an amidino group, an alkylcarbonyl group, an alkenylcarbonyl group, an arylcarbonyl group, or an aralkylcarbonyl group; R ３ is a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, or an aralkyl group, １ , R ２ , and R ３ cannot simultaneously become a hydrogen atom) 2. R １ and R ２ one of R is a hydrogen atom and the other is a methyl group, an aminomethylcarbonyl group, or a benzylcarbonyl group; ３ The cosmetic preparation according to claim 1 , wherein is a hydrogen atom or a methyl group.

3. A cosmetic preparation according to claim 1 or 2, wherein component (B) is glycylglycine.

4. A cosmetic preparation according to claim 1 or 2, wherein component (A) is PEG / polybutylene glycol-44 / 15 methyl ether hydrogenated dimer dilinoleyl.

5. The cosmetic according to claim 1 or 2, wherein the blending amount of component (A) is 0.01 to 2 mass % relative to the total amount of the cosmetic.

6. The cosmetic according to claim 1 or 2, wherein the blending amount of component (B) is 0.1 to 5 mass % relative to the total amount of the cosmetic.

7. The cosmetic preparation according to claim 1 or 2, wherein the blending ratio of the components (A) and (B) is, by mass, (A):(B) = 1:0.2 to 1:

5.

8. The cosmetic according to claim 1 or 2, wherein the blended amount of (D) oil is from 0% by mass to 1% by mass relative to the total amount of the cosmetic.

9. The cosmetic preparation according to claim 1 or 2, which is an aqueous cosmetic preparation.

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