Oil-in-water emulsion cosmetic

Abstract

The problem addressed by the present invention is to provide an oil-in-water type emulsion cosmetic having an excellent immediate and persistent warming effect. An oil-in-water emulsion cosmetic that solves the problem of the present invention contains the following components (A)-(D): (A) an oily film-forming agent, (B) a non-polar oil, (C) a warming component, and (D) a monovalent or divalent lower alcohol, and is characterized in that the content of component (A) is 5-30 mass% and component (B) contains a silicone oil and / or a hydrocarbon oil.

Description

Oil-in-water emulsion cosmetics

[0001] The present invention relates to an oil-in-water emulsion cosmetic.

[0002] Oil-in-water emulsion cosmetics have excellent usability, such as a high level of moisturizing and a fresh feel, and are therefore widely used in cleansing cosmetics, massage cosmetics, etc. Cleansing cosmetics and massage cosmetics contain warming ingredients such as capsicum extract and vanillyl alkyl ether for the purpose of improving the cleansing effect and blood circulation promoting effect.

[0003] Various studies have been conducted on cosmetics containing such warming ingredients with the aim of enhancing the warming sensation and improving the immediate and lasting effects, etc. For example, Patent Document 1 discloses a warming cosmetic that combines a capsicum extract that has an immediate warming effect, a vanillyl alkyl ether that has a lasting warming effect, and a plant extract of the Rosaceae family that complements the two. Also, Patent Document 2 discloses a warming composition that aims to enhance the warming effect by using a warming ingredient in combination with a silicone-containing composition.

[0004] However, when multiple warming ingredients are used in combination as in Patent Document 1, there is a difference in the timing at which the individual warming ingredients exert their warming sensations, making it difficult to control the overall warming intensity within an appropriate range. Furthermore, the warming composition disclosed in Patent Document 2 is not sufficient in terms of immediate effect and duration of warming sensation.

[0005] JP 2015-10043 A JP 2008-542387 A

[0006] An object of the present invention is to provide an oil-in-water emulsion cosmetic that has an immediate warming effect and is excellent in long-lasting effect.

[0007] As a result of extensive research to solve the above problems, the inventors have discovered that by combining a warming component with an oily film-forming agent, a specific non-polar oil, and a lower alcohol, a moderate warming effect can be obtained quickly after application to the skin, and the effect can be maintained for a long period of time, thereby completing the present invention.

[0008] Means for solving the above problems include the following aspects. [1] An oil-in-water emulsion cosmetic comprising the following components (A) to (D): (A) an oily film-forming agent, (B) a non-polar oil, (C) a warming component, and (D) a monohydric or dihydric lower alcohol, wherein the content of component (A) is 5 to 30% by mass, and component (B) contains a silicone oil and / or a hydrocarbon oil. [2] The oil-in-water emulsion cosmetic of [1], wherein component (A) is a silicone-based film-forming agent. [3] The oil-in-water emulsion cosmetic of [1] or [2], wherein the content of component (B) is 1 to 50% by mass. [4] The oil-in-water emulsion cosmetic of any of [1] to [3], further comprising a polar oil in an amount of 10% by mass or less. [5] The oil-in-water emulsion cosmetic of any of [1] to [4], wherein component (C) is a vanillyl alkyl ether. [6] The oil-in-water emulsion cosmetic of any one of [1] to [5], wherein the vanillyl alkyl ether is vanillyl butyl ether. [7] The oil-in-water emulsion cosmetic of any one of [1] to [6], wherein the vanillyl alkyl ether is vanillyl butyl ether.

[0009] The oil-in-water emulsion cosmetic of the present invention has an excellent immediate and sustained warming effect, and can provide a moderate warming sensation for a long period of time starting immediately after application to the skin. Furthermore, when the oil-in-water emulsion cosmetic of the present invention is used as a lip cosmetic, in addition to the warming effect, the effect of making vertical wrinkles on the lips less noticeable can be obtained.

[0010] The present invention will be described in detail below. The following description of the present invention may be based on preferred embodiments of the present invention, but the present invention is not limited to such embodiments. In this specification, the term "to" indicating a range of values ​​is used to mean that the values ​​before and after it are included as the lower and upper limits.

[0011] [Component (A): Oily Film-Forming Agent] The oil-in-water emulsion cosmetic of the present invention contains component (A) an oily film-forming agent. Examples of oily film-forming agents include PVP (polyvinylpyrrolidone)-based film-forming agents, acrylic acid-based film-forming agents, and silicone-based film-forming agents, and these may be used alone or in combination of two or more.

[0012] Examples of PVP-based film-forming agents include PVP / dimethylaminoethyl methacrylate copolymer, PVP / eicosene copolymer, PVP / ethyl methacrylate / methacrylic acid copolymer, PVP / hexadecene copolymer, PVP / VA copolymer, PVP / vinyl acetate / itaconic acid copolymer, and styrene / PVP copolymer.

[0013] Examples of acrylic acid-based film-forming agents include ethyl acrylate / acrylic acid amide / acrylic acid copolymer, ethyl acrylate / butyl acrylate copolymer, ethyl acrylate / ethyl methacrylate copolymer, ethyl acrylate / methyl methacrylate copolymer, octyl acrylate / vinyl acetate copolymer, octyl acrylate / styrene copolymer, butyl acrylate / vinyl acetate copolymer, butyl acrylate / ethyl hydroxymethacrylate copolymer, butyl acrylate / methyl methacrylate copolymer, methoxyethyl acrylate / hydroxyethyl acrylate / butyl acrylate copolymer, lauryl acrylate / vinyl acetate copolymer, polyethyl acrylate, polybutyl acrylate, and polystyrene-acrylic acid resin.

[0014] Examples of silicone film-forming agents include trimethylsiloxysilicate, trifluoroalkyldimethyltrimethylsiloxysilicate, polymethylsilsesquioxane, (acrylates / dimethicone) copolymer, (acrylates / stearyl acrylate / dimethicone methacrylate) copolymer, (acrylates / behenyl acrylate / dimethicone methacrylate) copolymer, (dimethicone / vinyl dimethicone) crosspolymer, (dimethicone / vinyl trimethylsiloxysilicate) crosspolymer, and dimethiconol.

[0015] Of these, it is preferable to use a silicone-based film-forming agent from the viewpoint of the immediacy and duration of the warming effect, etc. Among the silicone-based film-forming agents, trimethylsiloxysilicate, (acrylates / dimethicone) copolymer, and (dimethicone / vinyltrimethylsiloxysilicate) crosspolymer are preferred, with trimethylsiloxysilicate being more preferred.

[0016] Commercially available silicone film-forming agents include, for example, trimethylsiloxysilicate "BELSIL TMS 803 (Asahi Kasei Silicone Co., Ltd.)" and (acrylates / dimethicone) copolymer "KP-545 (Shin-Etsu Chemical Co., Ltd.)."

[0017] The content of component (A) is 5 to 30% by mass (hereinafter simply referred to as "%") of the total amount of the cosmetic, more preferably 7.5 to 25%, and even more preferably 10 to 20%, from the viewpoints of the immediacy and duration of the warming effect, and the inconspicuousness of vertical wrinkles when used as a lip cosmetic.

[0018] [Component (B) Non-polar Oil] The oil-in-water emulsion cosmetic of the present invention contains silicone oil and / or hydrocarbon oil as component (B) non-polar oil. Component (B) is preferably liquid at 25° C. "Liquid at 25° C." means that the component has fluidity at 25° C. and 1 atmosphere, and does not include semi-solid oils, but there is no particular restriction on whether the component is volatile or non-volatile.

[0019] Examples of silicone oils include dimethylpolysiloxane, methylphenylpolysiloxane, methyltrimethicone, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, diphenylsiloxyphenyltrimethicone, etc., and one or more of these can be used. Among these, from the viewpoint of the immediacy and duration of the warming effect, dimethylpolysiloxane, methyltrimethicone, etc. are preferred, and dimethylpolysiloxane is more preferred.

[0020] Examples of hydrocarbon oils include isododecane, isohexadecane, hydrogenated polyisobutene, liquid paraffin, squalane, polyisobutylene, polybutene, etc., and one or more of these can be used. Among these, isododecane is preferred from the viewpoint of the immediacy and duration of the warming effect.

[0021] The content of component (B) is not particularly limited, but from the viewpoints of the immediacy and duration of the warming sensation and the appropriate intensity of the warming sensation, it is preferably 1 to 50% of the total amount of the cosmetic, more preferably 10 to 40%, and even more preferably 20 to 30%.

[0022] As the non-polar oil, either a silicone oil or a hydrocarbon oil may be used alone or in combination, but from the viewpoint of the durability of the warming effect, etc., it is preferable to use a silicone oil, and it is even more preferable to use it in combination with a hydrocarbon oil. When a silicone oil and a hydrocarbon oil are used in combination, the content mass ratio is not particularly limited, but the content mass ratio of the silicone oil to the hydrocarbon oil is preferably 1 to 10, more preferably 2 to 8, and even more preferably 4 to 6.

[0023] [Component (C) Warming Sensation Component] Examples of the warming sensation component (C) include vanillyl alkyl ether, capsaicin, capsicum fruit extract, shogaol, gingerol, etc., and one or more of these can be used. Among these, vanillyl alkyl ether is preferably used from the viewpoints of skin irritation and sustained warmth.

[0024] The alkyl group constituting the vanillyl alkyl ether may be linear, branched, or cyclic. The number of carbon atoms in the alkyl group is preferably 1 to 10, more preferably 2 to 8, and even more preferably 3 to 6. Specific examples include vanillyl propyl ether, vanillyl butyl ether, and vanillyl pentyl ether, with vanillyl butyl ether being preferred.

[0025] Commercially available products of component (C) include, for example, vanillyl butyl ether "HOTACT VBE (Takasago Aromas Co., Ltd.)" and capsicum fruit extract "Capsicum Tincture (Maruzen Pharmaceutical Co., Ltd.)."

[0026] The content of component (C) is not particularly limited, but from the viewpoint of appropriate warming sensation intensity, etc., it is preferably 0.001 to 1% of the total amount of the cosmetic, more preferably 0.005 to 0.3%, and even more preferably 0.01 to 0.05%.

[0027] [Component (D) Monohydric or Dihydric Lower Alcohol] The monohydric or dihydric lower alcohol of component (D) is a monohydric or dihydric alcohol having an alkyl group with 2 to 6 carbon atoms. Examples of monohydric lower alcohols include ethanol, propanol, isopropyl alcohol, and butanol. Examples of dihydric lower alcohols include dipropylene glycol and 1,3-butylene glycol, and one or more of these can be used. Among these, from the viewpoints of the immediacy and duration of the warming sensation, ethanol and dipropylene glycol are preferred, and ethanol is more preferred.

[0028] The content of component (D) is not particularly limited, but from the viewpoint of the immediacy and duration of the warming sensation, it is preferably 1 to 10% of the total amount of the cosmetic, more preferably 2 to 8%, and even more preferably 2 to 6%.

[0029] Examples of water that can be used in the oil-in-water emulsion cosmetic of the present invention include purified water, hot spring water, ion-exchanged water, deep sea water, tap water, steam-distilled water from plants, and plant extract water, and one or more of these can be used.

[0030] The content of water is not particularly limited, but from the viewpoint of the immediacy and duration of the warming effect, it is preferably 35 to 80% of the total amount of the cosmetic, more preferably 40 to 70%, and even more preferably 45 to 60%.

[0031] [Other Components] The oil-in-water emulsion cosmetic according to the present invention may contain optional components other than those described above, as long as the effects of the present invention are not impaired. Examples of other optional components include polar oils, surfactants, gelling agents, pH adjusters, emulsifying aids, powders, UV absorbers, anti-fading agents, antioxidants, preservatives, cosmetic ingredients, moisturizers, etc.

[0032] Examples of polar oils include fats and oils that are liquid at 25°C, higher fatty acids, ester oils, higher alcohols, etc. Examples include fats and oils such as olive oil, castor oil, mink oil, macadamia nut oil, avocado oil, and medusa oil; higher fatty acids such as oleic acid, linoleic acid, linolenic acid, and isotearic acid; diisobutyl adipate, isocetyl isostearate, cetyl 2-ethylhexanoate, oleyl oleate, diisopropyl sebacate, di-2-ethylhexyl sebacate, isopropyl palmitate, 2-ethylhexyl palmitate, isononyl isononanoate, isotridecyl isononanoate, milli Examples include ester oils such as isopropyl stearate, isopropyl palmitate, 2-octyldodecyl myristate, 2-ethylhexyl methoxycinnamate, diisostearyl malate, glyceryl tri-2-ethylhexanoate, glyceryl triisostearate, diglyceryl diisostearate, and polyglyceryl triisostearate; and higher alcohols such as palmityl alcohol, stearyl alcohol, behenyl alcohol, hexadecyl alcohol, and cetostearyl alcohol.

[0033] From the viewpoint of the immediacy and duration of the warming sensation, the polar oil content is preferably 10% or less of the total amount of the cosmetic, more preferably 7% or less, even more preferably 5% or less, and particularly preferably substantially free. In this specification, "substantially free" means 1% or less (lower limit 0%) of the total amount of the cosmetic, preferably 0.1% or less, and more preferably 0.01% or less. Furthermore, with regard to the ratio of polar oil to non-polar oil in the oil agent, the mass ratio of polar oil in the total oil agent contained in the cosmetic is preferably 50% or less, more preferably 30% or less, and even more preferably 20% or less.

[0034] The surfactant may be any surfactant commonly used in cosmetics, without any particular limitation. It may be any of anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants, and one or more of these may be used. Among these, nonionic surfactants are preferred from the viewpoint of the immediacy and duration of the warming sensation. Examples of nonionic surfactants include polyoxyethylene alkyl ethers, polyoxyalkylene alkyl ether phosphates, polyoxyethylene fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyoxyethylene hydrogenated castor oil, glycerin fatty acid esters, polyglycerin fatty acid esters, mono-fatty acid sorbitans, sucrose fatty acid esters, and polyoxyalkylene-alkyl-co-modified silicones. One or more of these may be used. Among these, mono-fatty acid sorbitans, polyoxyalkylene alkyl ether phosphates, and polyoxyalkylene-alkyl-co-modified silicones are preferred. Examples of mono-fatty acid sorbitans include sorbitan monooleate, sorbitan sesquioleate, and sorbitan monostearate. Examples of polyoxyalkylene alkyl ether phosphates include steareth-2 phosphate and triceteareth-4 phosphate. Examples of polyoxyalkylene / alkyl-co-modified silicones include PEG-9 methyl ether dimethicone and PEG-11 methyl ether dimethicone. The content of the surfactant is not particularly limited, but is preferably 0.1 to 5%, more preferably 0.5 to 4%, and even more preferably 1 to 3%, of the total amount of the cosmetic.

[0035] As the gelling agent, any gelling agent that is normally used in cosmetics can be used, and examples thereof include hydrophilic thickeners such as natural polymers, semi-synthetic polymers, and synthetic polymers, and these can be used alone or in combination of two or more.

[0036] Examples of natural polymers include plant-based polymers such as guar gum and carrageenan; microbial-based polymers such as xanthan gum, dextran, and hyaluronic acid; and animal-based polymers such as gelatin and collagen. Examples of semi-synthetic polymers include cellulose-based polymers such as methyl cellulose and ethyl cellulose; starch-based polymers such as carboxymethyl starch and methylhydroxypropyl starch; and alginic acid-based polymers such as sodium alginate and propylene glycol alginate. Examples of synthetic polymers include vinyl-based polymers such as polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, and carboxyvinyl polymers; polyoxyethylene-based polymers such as polyethylene glycol; and acrylic polymers such as sodium polyacrylate, polyethyl acrylate, polyacrylamide, and acrylic acid / alkyl methacrylate copolymers. The content of the gelling agent is not particularly limited, but is preferably 0.01 to 5%, and more preferably 0.1 to 3%, of the total amount of the cosmetic.

[0037] The pH adjuster may be any pH agent typically used in cosmetics, such as lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, malic acid, sodium malate, etidronic acid, potassium carbonate, sodium bicarbonate, ammonium bicarbonate, sodium hydroxide, potassium hydroxide, arginine, triethanolamine, and monoethanolamine, and one or more of these may be used.

[0038] The form of the oil-in-water emulsion cosmetic is not particularly limited, and can be in various forms such as liquid, gel, emulsion, cream, etc.

[0039] The uses of the oil-in-water emulsion cosmetic of the present invention are not particularly limited, and examples thereof include lotions, milky lotions, creams, beauty serums, massage cosmetics, cleansing cosmetics, pack cosmetics, hand creams, body lotions, and makeup cosmetics, and an excellent warming effect can be obtained by applying the cosmetic to the skin. Furthermore, when the cosmetic is used in lip cosmetics such as lipstick, lip balm, lip gloss, and lip liner, in addition to the warming effect, the cosmetic can also have the effect of making vertical lip wrinkles less noticeable.

[0040] [Production Method] The method for producing the oil-in-water emulsion cosmetic of the present invention is not particularly limited and can be produced by known methods. For example, the oil-in-water emulsion cosmetic of the present invention can be obtained by preparing an oil phase containing component (A) and component (B) and an aqueous phase containing component (D) and water using a known mixing method, and then mixing the oil phase and aqueous phase until uniform using a known emulsification method. Component (C) may be added to either the aqueous phase or the oil phase, but is preferably added to the aqueous phase from the viewpoint of the immediacy and duration of the warming effect. By adding the warming component of component (C) to the aqueous phase in this way, the warming component remains dissolved mainly in the external aqueous phase even after emulsification, and a film is formed. This allows the warming component to act quickly and locally upon application to the skin, which is presumably resulting in a greater immediacy and duration of the warming effect. When the proportion of polar oil as an oil agent is high, the immediacy and duration of the warming sensation tend to be lower, which is thought to be because some of the warming components that are compatible with polar oil migrate into the oil phase, reducing the amount of warming components contained in the external aqueous phase. An example of a suitable production method is to prepare an oil phase by dissolving component (A), component (B), and other oily components while heating to 70 to 80°C, and then prepare an aqueous phase by mixing component (C), component (D), water, and other aqueous components, and then mixing and emulsifying the oil phase and the aqueous phase at 50 to 60°C until uniform, and then cooling, thereby obtaining an oil-in-water emulsion cosmetic in which component (C) can be contained in the external aqueous phase.

[0041] The present invention will be described in detail below with reference to examples, but the present invention is not limited to these. In these examples, "%" means "% by mass" unless otherwise specified.

[0042] [Examples 1 to 17 and Comparative Examples 1 to 4] Oil-in-water emulsion cosmetics having the formulations shown in Table 1 below were prepared according to the following manufacturing method. The obtained oil-in-water emulsion cosmetics were evaluated for (a) immediate warming effect, (b) sustained warming effect, (c) warming intensity, and (d) inconspicuousness of vertical wrinkles using the methods described below. The results are also shown in Table 1. Note that whether the phase containing component (C) in Table 1 is an external aqueous phase or an internal oil phase is based on speculation taking into account the composition, manufacturing method, etc.

[0043] [Methods for preparing oil-in-water emulsion cosmetics of Examples 1 to 16 and Comparative Examples 1 to 4] A. Heat components (1) to (8) to 80°C. B. Mix a portion of (9) with (15) to (19) and heat to 60°C. C. While mixing with a mixer, add A to B and emulsify. D. Add the remaining components to C and stir with a mixer to obtain oil-in-water emulsion cosmetics.

[0044] [Method for preparing the oil-in-water emulsion cosmetic of Example 17] A. Heat components (1) to (8) and (10) to 80°C. B. Mix a portion of (9) with (15) to (19) and heat to 60°C. C. While mixing with a mixer, add A to B and emulsify. D. Add the remaining components to C and stir with a mixer to obtain an oil-in-water emulsion cosmetic.

[0045] *1: BELSIL TMS 803 (Wacker Asahi Kasei Silicones Co., Ltd.) *2: KF-96-20cs (Shin-Etsu Chemical Co., Ltd.) *3: TMF-1.5 (Shin-Etsu Chemical Co., Ltd.) *4: Himalate DIS (Kyoto Alcohol Industries Co., Ltd.) *5: Cosmol 43V (Nisshin Oillio Group Ltd.) *6: HOTACT VBE (Takasago Aromas Co., Ltd.) *7: ECOCEROL (ECOGREEN) *8: KF-6018 (Shin-Etsu Chemical Co., Ltd.) *9: Rheodor AO-15V (Kao Corporation) *10: Hostafat 340D (Clariant Japan Co., Ltd.) *11: ACULYN 33A (Dow Chemical Japan Co., Ltd.)

[0046] [Evaluation Method] A use test was conducted by five panelists specializing in cosmetic evaluation for evaluation items (A) to (D). The oil-in-water emulsion cosmetics of the Examples and Comparative Examples were applied to the lips of the panelists, who then assigned a score using a five-point scale based on the absolute evaluation criteria below. The average score for each sample was calculated from the total scores of all panelists, and the results were judged according to the following criteria. Each evaluation item was compared with the condition of the lips before application to evaluate (A) how long it took for the warm sensation to be felt after application, (B) how long the warm sensation lasted from the onset of the warm sensation, (C) the intensity of the warm sensation felt at the strongest point after application, and (D) whether vertical wrinkles on the lips became less noticeable after application. Evaluation items (A) to (C) were evaluated over time by comparing with the condition before application. Evaluation item (D) was evaluated visually before and immediately after application.

[0047] [Evaluation criteria] <(A): Immediate temperature effect> (Score): (Evaluation) 5: Feels warmth within 30 seconds after application 4: Feels warmth within 30 seconds but less than 1 minute after application 3: Feels warmth within 1 minute but less than 2 minutes after application 2: Feels warmth within 2 minutes but less than 3 minutes after application 1: Does not feel warmth even after 3 minutes or more after application

[0048] <(b): Duration of warmth> (Score): (Evaluation) 5: Warmth is felt even after 15 minutes or more have passed since application 4: Warmth is felt for a period of 10 to 15 minutes after application 3: Warmth is felt for a period of 5 to 10 minutes after application 2: Warmth is felt for a period of 3 to 5 minutes after application 1: Warmth is felt for less than 3 minutes after application

[0049] <(C): Moderate warmth intensity> (Score): (Evaluation) 5: Moderate warmth is felt 4: Warmth is felt but very weak or strong 3: Warmth is felt but slightly weak or strong 2: Warmth is felt but weak or strong 1: No warmth is felt or too strong

[0050] <(D): Vertical wrinkles are less noticeable> (Score): (Evaluation) 5: Vertical wrinkles are not noticeable at all 4: Vertical wrinkles are slightly visible but not noticeable 3: Vertical wrinkles are visible but not noticeable 2: Vertical wrinkles are noticeable 1: Vertical wrinkles are very noticeable

[0051] [Judgment criteria] (Judgment): (Average score) A: Higher than 4.5 points B: Higher than 3.5 points and 4.5 points or less C: Higher than 2.5 points and 3.5 points or less D: Higher than 1.5 points and 2.5 points or less E: 1.5 points or less

[0052] As shown in Table 1, the oil-in-water emulsion cosmetics of the Examples were superior to the oil-in-water emulsion cosmetics of the Comparative Examples in all evaluation items, including immediate warming effect, duration, moderate warming intensity, and inconspicuousness of vertical wrinkles. Comparative Example 1, which did not contain component (A), was inferior in warming duration and resulted in noticeable vertical wrinkles. Comparative Examples 2 and 3, which did not contain component (B), were inferior in all evaluation items. Comparative Example 4, which did not contain component (D), was inferior in immediate warming effect and did not provide moderate warming intensity.

[0053] Example 18: Oil-in-water liquid rouge Ingredients (%) (1) Trimethylsiloxysilicate *1 15 (2) Dimethylpolysiloxane *2 10 (3) Diphenylsiloxyphenyl trimethicone *12 4 (4) Isododecane 4 (5) PEG-11 methyl ether dimethicone *8 0.5 (6) PEG-9 polydimethylsiloxyethyl dimethicone *13 0.5 (7) Squalane 1 (8) Mineral oil 1 (9) Rosemary leaf extract 0.1 (10) Sorbitan sesquioleate *9 1.2 (11) Polysorbate 80 0.1 (12) Triceteareth-4 phosphate 0.1 (13) Acrylates copolymer *11 1 (14) Triethylamine 1.4 (15) (Sodium acrylate / sodium acryloyldimethyltaurate) copolymer 1 (16) Isohexadecane 1 (17) Sorbitan oleate 0.05 (18) Purified water balance (19) Glycerin 3 (20) Ethanol 3.2 (21) Vanillyl butyl ether *6 0.02 (22) Methylparaben 0.1 (23) Phenoxyethanol 0.2 (24) Sodium hyaluronate 1 (25) Hydrolyzed collagen 1 (26) Peppermint leaf extract 1(27) Borosilicate (Ca / Al) 1 (28) Titanium oxide 2 (29) Red 227 0.5 (30) Yellow 4 0.3 (31) Blue 1 0.1 *12: KF-56 (Shin-Etsu Chemical Co., Ltd.) *13: KF-6028P (Shin-Etsu Chemical Co., Ltd.)

[0054] (Manufacturing Method) A. Heat ingredients (1) to (9) to 80°C. B. Mix a portion of (18) with (10) to (17) and heat to 60°C. C. While mixing with a mixer, add A to B and emulsify. D. Add the remaining ingredients to C and stir with a mixer to obtain an oil-in-water liquid rouge.

[0055] The oil-in-water liquid rouge of Example 18 was excellent in all the evaluation items of immediate warming effect, duration, moderate warming intensity, and inconspicuousness of vertical wrinkles.

[0056] Example 19: Oil-in-water serum Ingredients (%) (1) Trimethylsiloxysilicate *1 10 (2) Dimethylpolysiloxane *2 15 (3) Diphenylsiloxyphenyl trimethicone *12 2 (4) Isododecane 2 (5) Octyldodecanol 1 (6) Cetearyl alcohol 1 (7) Behenyl alcohol 1 (8) Squalane 0.1 (9) Sesame seed oil 0.1 (10) Rosa canina fruit oil 0.1 (11) Olea europaea (olive) fruit oil 0.1 (12) PEG-11 methyl ether dimethicone *8 1 (13) Sorbitan sesquioleate *9 1.2 (14) Polysorbate 80 0.1 (15) Triceteareth-4 phosphate 0.1 (16) Acrylates copolymer *11 1 (17) Triethylamine 1.4 (18) (Sodium acrylate / sodium acryloyldimethyltaurate) copolymer 1 (19) Isohexadecane 1 (20) Sorbitan oleate 0.05 (21) Purified water balance (22) Glycerin 3 (23) Ethanol 3.2 (24) Vanillyl butyl ether *6 0.02 (25) Methylparaben 0.1 (26) Phenoxyethanol 0.2 (27) Sodium hyaluronate 1(28) Hydrolyzed collagen 1 (29) Borosilicate (Ca / Al) 1

[0057] (Manufacturing Method) A. Heat ingredients (1) to (11) to 80°C. B. Mix a portion of (21) with (12) to (20) and heat to 60°C. C. While mixing with a mixer, add A to B and emulsify. D. Add the remaining ingredients to C and stir with a mixer to obtain an oil-in-water serum.

[0058] The oil-in-water cosmetic serum of Example 19 was excellent in all evaluation items including immediate warming effect, duration, moderate warming intensity, and inconspicuousness of vertical wrinkles.

Claims

1. An oil-in-water emulsion cosmetic comprising the following components (A) to (D): (A) an oily film-forming agent, (B) a non-polar oil, (C) a warming component, and (D) a monohydric or dihydric lower alcohol, wherein the content of component (A) is 5 to 30 mass %, and component (B) contains a silicone oil and / or a hydrocarbon oil.

2. The oil-in-water emulsion cosmetic according to claim 1, wherein component (A) is a silicone-based film-forming agent.

3. The oil-in-water emulsion cosmetic according to claim 1 or 2, wherein the content of component (B) is 1 to 50% by mass.

4. The oil-in-water emulsion cosmetic according to claim 1 or 2, further comprising a polar oil in an amount of 10% by mass or less.

5. The oil-in-water emulsion cosmetic according to claim 1 or 2, wherein component (C) is vanillyl alkyl ether.

6. The oil-in-water emulsion cosmetic according to claim 5, wherein the vanillyl alkyl ether is vanillyl butyl ether.

7. The oil-in-water emulsion cosmetic according to claim 1 or 2, which is a lip cosmetic.

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