JPWO2019230578A1 - Warm cosmetics - Google Patents

Abstract

It is an object of the present invention to provide a water-in-oil warming cosmetic having excellent storage stability while exhibiting an excellent warming effect and having a good feeling of use. The present invention relates to a warm cosmetic containing a polyhydric alcohol, an oil phase thickener, an emulsifier and water. [Selection diagram] None

Description

The present invention relates to a warm cosmetic that gives a warm feeling when applied to the skin. More specifically, the present invention relates to a water-in-oil warm-feeling cosmetic having excellent emulsification stability, exhibiting a beauty effect, and having a good usability.

In general, it is known that giving an appropriate warmth to the skin promotes blood circulation in the skin, enhances metabolism, and has an effect of improving blood color, a relaxation effect, a fatigue recovery effect, and the like. Therefore, in anticipation of these effects, a heat-generating substance is added to the cosmetics. Moisturizers such as polyhydric alcohols, zeolites, metal salts, metal oxides, and the like are widely used as heat-generating substances to be blended in cosmetics. All of these are hygroscopic and generate heat when they come into contact with moisture on the skin, giving the skin a feeling of warmth.

In Patent Document 1, since an appropriate viscosity and an excellent warming effect can be obtained, a warming cosmetic made by emulsifying a polyhydric alcohol with a specific nonionic surfactant to obtain a polyhydric alcohol medium oil type. Fees have been proposed. Further, Patent Document 2 proposes that zeolite having high heat generation is dispersed in a polyhydric alcohol solvent to enhance the effect of imparting a feeling of warmth.
As described above, various bases have been proposed as warming cosmetics, but the cosmetic of Patent Document 1 is an oil-in-water base and the polyhydric alcohol comes into direct contact with the skin, so that the stickiness is remarkable. high. Therefore, it is a rinse-off type cleaning agent that is applied to the skin and rinsed off after a certain period of time. Further, although the cosmetic of Patent Document 2 is a leave-on type, since it is non-aqueous, it is difficult to stably mix an aqueous solution containing a salt-type drug having a beauty effect.

Therefore, there is a demand for a water-in-oil base that can be blended with a drug having a beauty effect such as a whitening ingredient, which is excellent in stability and usability while exhibiting an excellent warming effect.

Japanese Unexamined Patent Publication No. 2014-37404 Japanese Unexamined Patent Publication No. 2016-193841

An object of the present invention is to provide a water-in-oil warming cosmetic having excellent storage stability while exhibiting an excellent warming effect and having a good feeling of use.

As a result of diligent studies by the present inventors, they have found that the above object can be achieved by blending a polyhydric alcohol, an oil phase thickener, an emulsifier and water, and have completed the present invention.
That is, the present invention
Multivalent alcohol,
Oil phase thickener,
It is characterized by a water-in-oil warming cosmetic containing an emulsifier and water.

The warming cosmetic of the present invention exhibits an excellent warming effect and is also excellent in emulsification stability. In addition, the warming cosmetic of the present invention contains a high amount of moisturizer (polyhydric alcohol) because it prevents the polyhydric alcohol from coming into direct contact with the skin by making it a water-in-oil type warming cosmetic. Despite this, stickiness is suppressed as compared with the conventional water-in-water oil type or polyhydric alcohol medium-oil type warm-feeling cosmetics. Therefore, the warm-feeling cosmetic of the present invention can also be used as a leave-on type warm-feeling cosmetic base. Further, since water can be blended, a salt-type chemical having a beauty effect such as a whitening ingredient can also be blended.

The warming cosmetic of the present invention is characterized by containing a polyhydric alcohol, an oil phase thickener, an emulsifier and water as essential components. Hereinafter, the present invention will be described in detail.

<Multivalent alcohol>
The polyhydric alcohol used in the warming cosmetic of the present invention refers to one that imparts a warming feeling when applied to the skin. Specific examples include, but are not limited to, glycerin, diglycerin, polyglycerin, 1,3-butylene glycol, ethylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol (PEG-8, etc.), polypropylene glycol, polyethylene glycol. -Polyethylene glycol, methylglyces-10, trimethylolethane, trimethylolpropane, erythritol, pentaerythritol, sorbitan, glucose, sorbitol, martitol, sucrose, raffinose, hexylene glycol, 1,2-pentanediol, trehalose, etc. Can be done.
Among these, it is preferable to appropriately mix and use glycerin, dipropylene glycol, polyethylene glycol, 1,3-butylene glycol, methyl glycols-10 and the like.

In addition, the blending of a polyhydric alcohol causes a warming effect to lead to bright and ruddy skin, and at the same time, a high moisturizing effect can prevent makeup from coming off due to drying.

The blending amount of the polyhydric alcohol in the cosmetic of the present invention is 20% by mass or more, preferably 20 to 80% by mass, and more preferably 30 to 70% by mass with respect to the total amount of the cosmetic. If the blending amount of the polyhydric alcohol is less than 20% by mass, a sufficient feeling of warmth during use cannot be obtained.

<Oil phase thickener>
The oil phase thickener used in the warm cosmetics of the present invention refers to one that can impart viscosity to the oil phase. Examples include emulsifying or non-emulsifying crosslinked siloxane elastomers, dextrin fatty acid esters, hydrophobized modified polysaccharides, fatty acids, waxes and the like. Among them, in the present invention, it is preferable to use a non-emulsifying crosslinked siloxane elastomer from the viewpoint of suppressing stickiness.

The non-emulsifying crosslinked siloxane elastomer is not particularly limited, but is limited to methylpolysiloxane crosspolymer, methylphenylpolysiloxane crosspolymer, vinyldimethicone / lauryldimethicone crosspolymer, and laurylpolydimethylsiloxyethyldimethicone / bis-vinyl. Examples thereof include dimethicone crosspolymer, alkyl (C30-45) cetearyl dimethicone crosspolymer, cetearyl dimethicone crosspolymer and the like. As these non-emulsifying crosslinked siloxane elastomers, those commercially available in the form of swelled products swelled in various oils such as silicone oil, mineral oil, triethylhexanoin, and squalane can be used. Specific examples include the following.

Examples of the methylpolysiloxane crosspolymer include dimethicon crosspolymers such as 9040 Silicone Elastomer Blend, 9041 Silicone Elastomer Blend, 9045 Silicone Elastomer Blend, EL-8040ID Silicone Organic Blend (all manufactured by Toray Dow Corning), and KSG-15. Dimethicone / Vinyl Dimethicone Cross Polymer such as KSG-16, KSG-1610 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.), Vinyl Dimethicone / Silicon Dimethicone Cross Polymer such as KSP-100 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.), Tospearl 150KA Examples include polymethylsilsesquioxane (manufactured by Momentive Performance Materials) and the like.

Examples of the methylphenylpolysiloxane crosspolymer include dimethicone / phenyldimethicone crosspolymer such as KSG-18A (dimethicone / phenylvinyldimethicone crosspolymer, manufactured by Shin-Etsu Chemical Industry Co., Ltd.).

Examples of the vinyl dimethicone / lauryl dimethicone crosspolymer include KSG-41A, KSG-42A, KSG-43, KSG-44 (all manufactured by Shin-Etsu Chemical Co., Ltd.) and the like.

Examples of the swelling product of laurylpolydimethylsiloxyethyl dimethicone / bis-vinyldimethicone crosspolymer include KSG-042Z and KSG-045Z (all manufactured by Shin-Etsu Chemical Co., Ltd.).

Examples of the alkyl (C30-45) cetearyl dimethicone crosspolymer include VELVESIL 125 and VELVESIL 034 (all manufactured by Momentive Performance Materials).

Examples of the cetearyl dimethicone crosspolymer include VELVESIL DM (manufactured by Momentive Performance Materials).

The blending amount of the oil phase thickener in the cosmetic of the present invention is more than 1.25% by mass and 15% by mass or less, preferably 1.26 to 12% by mass, more preferably 1 with respect to the total amount of the cosmetic. It is .27 to 10% by mass, more preferably 1.28 to 10% by mass. When the blending amount of the oil phase thickener is 1.25% by mass or less, the emulsification stability tends to be inferior and the usability tends to be poor, while when the blending amount exceeds 15% by mass, a stable cosmetic is prepared. Can be difficult.

As the oil phase thickener of the present invention, one or a combination of two or more selected from the above non-emulsifying crosslinked siloxane elastomers can be used.

<Emulsifier>
The emulsifier used in the warm cosmetics of the present invention has a relatively high lipophilicity and can exhibit an emulsion stabilizing effect between an aqueous component containing a high amount of polyhydric alcohol and an oily component. In the present invention, polyether-modified silicones or organic-modified clay minerals having specific properties are preferably used.

The polyether-modified silicone having the specific properties used as the emulsifier of the present invention has an HLB of 8.0 or less and a viscosity at 25 ° C. of 10,000 mm ² / s or more, preferably 15, 000 mm ² / s or more, and still more preferably 20,000 mm ² / s or more. If the viscosity is ^{less than 10,000 mm 2} / s, good emulsion stability cannot be obtained.
Specific examples of the polyether-modified silicone include PEG / PPG-19 / 19 dimethicone (trade name “BY11-030”, HLB = 3, viscosity 30,000 mm ² / s; manufactured by Toray Dow Corning Co., Ltd.) and the like.

The organically modified clay mineral used in the present invention is a kind of colloidal hydrous aluminum silicate having a three-layer structure, and the clay mineral represented by the following general formula (1) is a quaternary ammonium salt type cationic surfactant. It is possible to use the one modified with.
[Chemical 1]
(X, Y) _2-3 (Si, Al) ₄ O ₁₀ (OH) ₂ Z _1/3 · nH ₂ O (1)
In the above formula, X is Al, Fe (III), Mn (III) or Cr (III), Y is Mg, Fe (II), Ni, Zn or Li, and Z is K, Na or Ca. is there.

Specifically, natural or synthetic montmorillonites such as montmorillonite, saponite, and hectorite (in this case, the (OH) group in the formula is substituted with fluorine) and the montmorillonite group (commercially available products such as bee gum, cunipia, and laponite) and Obtained by treating clay minerals such as sodium silicic mica and synthetic mica known as sodium or lithium teniolite (commercially available as dimonite; manufactured by Topy Industries, Ltd., etc.) with a quaternary ammonium salt-type cationic surfactant. Be done.

式中、Ｒ^１は炭素数１０〜２２のアルキル基またはベンジル基、Ｒ^２はメチル基または炭素数１０〜２２のアルキル基、Ｒ^３およびＲ^４は炭素数１〜３のアルキル基またはヒドロキシアルキル基、Ｘはハロゲン原子またはメチルサルフェート残基を表す。The quaternary ammonium salt-type cationic surfactant used here is represented by the following general formula (2).

In the formula, R ¹ is an alkyl group or benzyl group having 10 to 22 carbon atoms, R ² is a methyl group or an alkyl group having 10 to 22 carbon atoms, and R ³ and R ⁴ are alkyl groups or hydroxyalkyl groups having 1 to 3 carbon atoms. The group, X, represents a halogen atom or a methyl sulfate residue.

Examples of such a quaternary ammonium salt-type cationic surfactant include dodecyltrimethylammonium chloride, myristyltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, araquiltrimethylammonium chloride, behenyltrimethylammonium chloride, and myristyldimethylethylammonium. Chloride, cetyldimethylethylammonium chloride, stearyldimethylethylammonium chloride, araquildimethylethylammonium chloride, behenyldimethylethylammonium chloride, myristyldiethylammonium chloride, cetyldiethylmethylammonium chloride, stearyldiethylmethylammonium chloride, araquildiethylmethylammonium Chloride, Behenyl diethylmethylammonium chloride, benzyldimethylmyristylammonium chloride, benzyldimethylcetylammonium chloride, benzyldimethylstearylammonium chloride, benzyldimethylbehenylammonium chloride, benzylmethylethylcetylammonium chloride, benzylmethylethylstearylammonium chloride, dibehenyldihydroxyethyl Ammonium chloride and the equivalent bromide and the like, as well as dipalmitylpropyl ethylammonium methyl sulfate and the like. In carrying out the present invention, one or more of these are arbitrarily selected.

Typical organic modified clay minerals are dimethyl distealammonium hectorite (disteardimonium hectorite), dimethylalkylammonium hectorite, benzyldimethylstearylammonium hectorite, distearyldimethylammonium chloride treated aluminum magnesium silicate. And so on. Of these, dimethyl disteal ammonium hectorite is particularly preferable. Examples of commercially available products include Benton 27 (benzyldimethylstearylammonium chloride-treated hectorite: manufactured by Elementis Japan) and Benton 38VCG (distearyldimethylammonium chloride-treated hectorite: manufactured by Elementis Japan).

The blending amount of the emulsifier in the cosmetic of the present invention is 0.1 to 5% by mass, preferably 0.2 to 4% by mass, and more preferably 0.4 to 3% by mass with respect to the total amount of the cosmetic. If the blending amount is less than 0.1% by mass, the viscosity is difficult to obtain and the stability is inferior, and if the blending amount exceeds 5% by mass, stickiness or powderiness derived from the emulsifier occurs, which is not preferable in terms of usability.

<Water>
In the warm cosmetics of the present invention, water (ion-exchanged water, purified water, natural water, etc.) can be blended as an aqueous solvent. However, since the warming effect is reduced in the presence of the aqueous solvent, when the aqueous solvent is blended, 10% by mass or less, preferably 8% by mass or less, more preferably 5% by mass, based on the total amount of the warming cosmetics. Should be kept below%. Therefore, in the warm cosmetics of the present invention, the amount of water blended is 0.1 to 10% by mass, or 1 to 10 from the viewpoint of sufficiently dissolving a drug such as a whitening agent and obtaining a feeling of warmth. It is preferably 0.1 to 8% by mass, or 1 to 8% by mass, and more preferably 1 to 5% by mass.

<Whitening agent>
The conventional leave-on type warm-feeling cosmetic is non-aqueous, and it is difficult to mix a water-soluble drug. On the other hand, since the warm-feeling cosmetic of the present invention contains water, a water-soluble drug is blended. It is characterized in that it can be used.

The whitening agent to be blended may be any whitening agent blended in ordinary cosmetics, and is not particularly limited. For example, ascorbic acid (vitamin C), tranexamic acid, kojic acid, ellagic acid, arbutin, and alkoxysalicylic acid. , And salts or derivatives thereof. More specific examples include sodium L-ascorbic acid, magnesium L-ascorbic acid ester, glucoside L-ascorbic acid, 2-O-ethyl-L-ascorbic acid, 3-O-ethyl-L-ascorbic acid, 4 -Sodium methoxysalicylic acid salt, potassium 4-methoxysalicylic acid salt and the like can be mentioned.
In the present invention, 4-methoxysalicylic acid potassium salt is preferably used.

In addition, a drug other than the whitening drug can be blended. For example, as an example of a drug, vitamin A derivatives such as vitamin A, vitamin A palmitate, vitamin A acetate, vitamin B6 hydrochloride, vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 and its derivatives, vitamin B12, vitamin B15 and its derivatives. Vitamin Bs such as derivatives, vitamin Es such as α-tocopherol, β-tocopherol, vitamin E acetate, vitamins D, vitamin H, pantothenic acid, pantetin and other vitamins; γ-orizanol, allantin, glycyrrhizinic acid (salt) ), Glycyrrhetinic acid, Stearyl glycyrrhetinate, Hinokithiol, Visabolol, Eucalptone, Timor, Inositol, Psychosaponin, Carrot saponin, Hetima saponin, Saponins such as muclodisaponin, Pantothenyl ethyl ether, Arbutin, Cepharantin and other drugs. Gishigishi, Clara, Kohone, Orange, Sage, Nokogirisou, Zeniaoi, Senburi, Thyme, Touki, Tohi, Birch, Sugina, Hechima, Maronie, Yukinoshita, Ogon, Arnica, Yuri, Yomogi, Shakuyaku, Aloe, Kuchinashi, Sakura Leaf, etc. Examples thereof include plant extracts and pigments such as β-carotene.
The blending amount of the drug of the present invention is arbitrarily determined within the blending amount range that can be dissolved in the warm cosmetics. From the viewpoint of obtaining a sufficient drug effect in cosmetics, it is preferably 0.5 to 4% by mass, more preferably 1 to 3% by mass.

<Polyether-modified silicone>
In the present invention, the emulsion stability can be further improved by blending a polyether-modified silicone having an HLB of 8.0 or less and a viscosity at 25 ° C. of ^{less than 10,000 mm 2 / s.} Among them, those having no alkyl chain in the side chain and having a polyoxyalkylene group in the side chain of the linear or branched silicone skeleton are preferable.

Specific examples of the polyether-modified silicone having a linear silicone skeleton include PEG-3 dimethicone (trade name "KF-6015", HLB = 4.5, viscosity 150 mm ² / s; manufactured by Shinetsu Chemical Industry Co., Ltd.). PEG-9 methyl ether dimethicone (trade name "KF-6016", HLB = 4.5, viscosity 150 mm ² / s; manufactured by Shin-Etsu Chemical Industry Co., Ltd.), PEG-10 dimethicone (trade name "KF-6017P", HLB = 4) .5, Viscosity 850 mm ² / s; manufactured by Shin-Etsu Chemical Industry Co., Ltd.), PEG-12 Dimethicone (trade name "SH3772M", HLB = 6, viscosity 1,050 mm ² / s, product name "SH3773M", HLB = 8, viscosity 650mm ² / s, trade name "SH3775M", HLB = 5, viscosity 1,600mm ² / s; all above, manufactured by Toray Dow Corning, PEG / PPG-20 / 22 butyl ether dimethicone (trade name "KF-6012") , HLB = 7.0, viscosity 1,600 mm ² / s; manufactured by Shin-Etsu Chemical Industry Co., Ltd.) and the like.

Specific examples of the polyether-modified silicone having a branched silicone skeleton include PEG-9 polydimethylsiloxyethyl dimethicone (trade name "KF-6028", HLB = 4, viscosity 900 mm ² / s; manufactured by Shin-Etsu Chemical Industry Co., Ltd.). ), Lauryl PEG-9 polydimethylsiloxyethyl dimethicone (trade name "KF-6038", HLB = 3, viscosity 700 mm ² / s; manufactured by Shin-Etsu Chemical Industry Co., Ltd.), cetyl PEG / PPG-10 / 1 dimethicone (trade name "" KF-6048 ”, HLB = 3.5, viscosity 2,700 mm ² / s; manufactured by Shin-Etsu Chemical Industry Co., Ltd.) and the like.

The blending amount of the polyether-modified silicone in the cosmetic of the present invention is 0.1 to 10% by mass or less, preferably 0.3 to 6% by mass, and more preferably 1 to 5% by mass with respect to the total weight of the cosmetic. is there.

<Oil>
It is preferable that the warm-feeling cosmetic of the present invention contains an oil in order to improve the feeling of use when applied to the skin. As the oil content, any oil content that can be used in ordinary cosmetics can be used without particular limitation.

For example, flaxseed oil, camellia oil, macadamia nut oil, corn oil, olive oil, avocado oil, southern ka oil, sunflower oil, saflower oil, kyonin oil, cinnamon oil, jojoba oil, grape oil, sunflower oil, almond oil, rapeseed oil, Oils and fats such as sesame oil, wheat germ oil, rice germ oil, rice bran oil, cotton seed oil, soybean oil, peanut oil, tea seed oil, evening primrose oil, heptanic acid, octanoic acid, nonanoic acid, decanoic acid, pentadecanoic acid, heptadecanoic acid , Nonadecanic acid, isostearic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid and other fatty acids, pentaerythlit tetraoctanoate, cetyl octanoate, hexyl laurate, isopropyl myristate, octyldodecyl myristate, octyl palmitate. , Esters such as isopropyl isostearate, octyl isopalmitate, isodecyl oleate, cetyl ethylhexaneate, liquid paraffin, squalane, squalane, olefin oligomer, hydrogenated polydecene, paraffin, isoparaffin, octane, decane, dodecane, isododecane, hexadecane. , Hydrocarbons such as isohexadecane, higher alcohols such as octyl alcohol, isostearyl alcohol, oleyl alcohol, chain silicone such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, octamethylcyclotetrasiloxane, Cyclic silicones such as decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane, and silicone oils such as caprylyl methicone can be mentioned.

In the cosmetic of the present invention, a plurality of the above oils may be combined and blended. The blending amount of the oil is 10 to 50% by mass, more preferably 15 to 40% by mass, and more preferably 15 to 35% by mass with respect to the total amount of the cosmetic. If the amount of oil is less than 10% by mass, it is difficult to emulsify because the amount of external oil phase is small, and the lightness when applied to the skin and the good spreadability cannot be sufficiently obtained, and the amount of oil is more than 50% by mass. Then, since the internal aqueous phase is small, the viscosity is difficult to obtain, and the stability may be impaired.

<Other ingredients>
In addition to the above-mentioned components, the warm-feeling cosmetics of the present invention include other components usually used in cosmetics as long as the effects of the present invention are not impaired, such as powder components, UV protection agents, various aqueous solvents, and additions. Thickeners, metal ion sequestering agents, sugars, amino acids, organic amines, pH regulators, stabilizers, skin nutrients, antioxidants, antioxidant aids, fragrances and the like can be appropriately added as needed.

The average emulsified particle size of the water droplets constituting the warm cosmetic of the present invention is preferably 10 μm or less, more preferably 5 μm or less. By reducing the average emulsified particle size of water droplets, the emulsification stability is excellent.

The warmth cosmetic of the present invention has a hardness of 6 or more, preferably 8 or more, and more preferably 10 or more, as measured at 25 ° C. using a rheometer (11.3 mmφ, 10 mm with needle). Wax or the like may be used in combination to form a balm. The emulsified cosmetic of the present invention having such hardness is excellent in stability, and when filled in a jar container, for example, it does not flow and maintains an appropriate hardness.

The warm-feeling cosmetic according to the present invention is characterized by being a single-layer type. The warm-feeling cosmetic according to the present invention has good emulsification stability even when a water-soluble agent is blended, and despite a high blend of moisturizer, it is not sticky and has an excellent usability. Has. Therefore, the warm cosmetics according to the present invention can be widely applied to cosmetics, for example, milky lotion, serum, cream, massage cosmetics, sunscreen cosmetics, makeup base, foundation, lipstick, blusher. , Eye shadow and the like.

The warm cosmetics of the present invention can be produced by a conventional method. As an example, the aqueous phase component and the oil phase component are stirred and mixed to prepare a uniform aqueous phase portion and an oil phase portion, and the aqueous phase portion is added to the oil phase portion and mixed by stirring.

Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. Unless otherwise specified, the blending amount is shown in% by mass. Prior to Examples, the evaluation method used in the present invention will be described.

(1) Warm feeling effect The prepared sample was subjected to an actual use test by 10 specialized panelists. Specifically, the prepared sample was applied to the face of each panelist, and the warmth was evaluated according to the following criteria.
<Evaluation criteria>
A: More than 8 specialized panelists recognized that it had a warming effect.
B: 5 or more and less than 8 specialized panelists recognized that it had a warming effect.
C: 3 or more and less than 5 specialized panelists recognized that it had a warming effect.
D: Less than 3 specialized panelists admitted that it had a warming effect.

(2) Stability After preparation, each sample was allowed to stand at 0 ° C., 25 ° C., and 50 ° C. for 1 month, then returned to room temperature, visually observed, and evaluated with or without separation. In addition, the diameter of the emulsified particle size of the water droplet after the sample preparation was measured with a microscope. The smaller the average emulsified particle, the better the emulsification stability, and if it exceeds 10 μm, the tendency for separation to be observed by long-term storage increases.

(3) Hardness Here, the "hardness" in the above was measured using a rheometer (manufactured by Fudo Kogyo Co., Ltd.) under the conditions of needle diameter: 11.3 mmφ, needle insertion distance: 10 mm, and measurement temperature: 25 ° C.

(4) Usability The prepared sample was subjected to an actual use test by 10 specialized panelists. Specifically, the prepared sample was applied to the face of each panelist, and the non-stickiness, smoothness, and lightness of spread were comprehensively evaluated according to the following criteria.
<Evaluation criteria>
A: More than 8 professional panelists recognized that the usability was excellent.
B: 5 or more and less than 8 specialized panelists recognized that the usability was excellent.
C: 3 or more and less than 5 specialized panelists recognized that the usability was excellent.
D: Less than 3 specialized panelists admitted that the usability was excellent.

[Examples 1 to 8 and Comparative Examples 1 to 7]
Cosmetics were prepared according to the formulations shown in Tables 1 and 2 below, and each characteristic was evaluated according to the above evaluation method. The results are also shown in Tables 1 and 2.

^{* 1} KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.)
^{* 2} DC9041 (manufactured by Toray Dow Corning)
^{* 3} Tospearl 150KA (manufactured by Momentive Performance Materials)
^{* 4} KSG-18A (manufactured by Shin-Etsu Chemical Co., Ltd.)
^{* 5} KSP-100 (manufactured by Shin-Etsu Chemical Co., Ltd.)
^{* 6} BY11-030 (manufactured by Toray Dow Corning)
^{* 7} Benton 38VCG (manufactured by Elementis Japan)
^{* 8} KF-6017P (manufactured by Shin-Etsu Chemical Co., Ltd.)
^{* 9} KF-6048 (manufactured by Shin-Etsu Chemical Co., Ltd.)
^{* 10} KF-6028 (manufactured by Shin-Etsu Chemical Co., Ltd.)

As shown in the results in the table, the composition containing the moisturizer, the oil phase thickener, and the emulsifier according to the present invention (Example 1) has a sufficient warming effect and is also excellent in emulsion stability. There was no stickiness and the usability was good. Further, in the compositions of Examples 2 to 8, the whitening agent could be stably blended.

On the other hand, when the composition containing no oil phase thickener (Comparative Examples 1 to 3) and the blending amount of the oil phase thickener were small (Comparative Examples 4 and 5), the stability was significantly lowered and separated. .. Further, the composition (Comparative Example 6) containing neither the highly viscous polyether-modified silicone nor the organically modified clay mineral was remarkably low in stability. Further, when the amount of water blended was large (Comparative Example 7), a sufficient warming effect could not be obtained.

Claims (8)

Multivalent alcohol,
Oil phase thickener,
A water-in-oil warming cosmetic containing an emulsifier and water. The cosmetic according to claim 1, wherein the water content is 0.1 to 10% by mass. The cosmetic according to claim 1, wherein the emulsifier is a polyether-modified silicone having a viscosity at 25 ° C. of 10,000 mm ^{2 / s or more.} The cosmetic according to claim 1, wherein the emulsifier is disteardimonium hectorite. The cosmetic according to claim 1, wherein the oil phase thickener is a siloxane elastomer. The cosmetic according to claim 1, wherein the blending amount of the oil phase thickener is more than 1.25% by mass and 15% by mass or less. The cosmetic according to claim 1, further containing a polyether-modified silicone having a viscosity at 25 ° C. of ^{less than 10,000 mm 2 / s.} The cosmetic according to claim 1, further comprising a whitening agent.