External composition

Abstract

To provide external compositions that have excellent stability, good usability, and excellent detergency, without the addition of a surfactant.SOLUTION: An external composition contains: (A) polyethylene glycol; (B) glycerin; (C) an oil solution that is liquid at 25°C; and (D) a thickener, the composition having no surfactant.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to an external composition. More specifically, the present invention relates to an external composition that has excellent stability, good usability, and further excellent detergency without containing a surfactant.

Background Art

[0002] In recent years, in the technical field of external compositions such as cosmetics, with the diversification and compounding of functional needs, the importance of technologies for mixing various components that do not mutually dissolve and stably formulating them has been increasing. As a component for enhancing the stability of external compositions, surfactants are widely used, and their solubilizing, emulsifying, dispersing actions, etc. make it possible to maintain a stable state without separation or syneresis. In addition, surfactants are also widely used as the main components incorporated in detergents, etc., and due to this action, it is possible to remove dirt, sebum, makeup, etc. on the skin.

[0003] Thus, while surfactants play important functions in external compositions, although the degree varies depending on the type and blending amount thereof, it is widely known that, for example, they may reduce the usability (for example, paragraphs 0002 to 0003 of Patent Document 1, etc.).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Under such circumstances, research and development are being carried out from various viewpoints such as reducing the blending amount of surfactants and searching for components that can replace surfactants. However, the development of an external composition that has excellent stability and usability without containing a surfactant and further has excellent detergency has not yet progressed sufficiently, and a practical formulation technology has not been established.

[0006] The present invention has been made in view of the above circumstances, and an object thereof is to provide an external composition that is excellent in stability, has a good feeling in use, and is further excellent in detergency without blending a surfactant.

Means for Solving the Problems

[0007] As a result of intensive studies by the present inventors in view of the above circumstances, surprisingly, an external composition in which each component of (A) polyethylene glycol, (B) glycerin, (C) an oil agent that is liquid at 25°C, and (D) a thickener is combined can provide an external composition that is excellent in stability, has a good feeling in use, and is further excellent in detergency without using a surfactant. Thus, the present invention has been achieved.

[0008] That is, the present invention provides the following [1] to [7]. [1] An external composition containing (A) polyethylene glycol, (B) glycerin, (C) an oil agent that is liquid at 25°C, and (D) a thickener, and not containing a surfactant. [2] The external composition according to [1], wherein the total content of (A) and (B) is 50% by mass or more based on the total amount of the external composition. [3] The external composition according to [1] or [2], wherein the content of (C) is 3% by mass or more based on the total amount of the external composition. [4] The external composition according to any one of [1] to [3], wherein the average molecular weight of (A) is 200 to 1000. [5] The external composition according to any one of [1] to [4], wherein (D) includes one or more selected from the group consisting of carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, and salts thereof. [6] The external composition according to any one of [1] to [5], wherein the mass ratio [(A) / (B)] of (A) and (B) is 1 or more and less than 6. [7] The external composition according to any one of [1] to [6], which contains at least one selected from the group consisting of hydrocarbon oil, ester oil, vegetable oil, animal oil, higher fatty acid, higher alcohol, and alkyl glyceryl ether.

Advantages of the Invention

[0009] According to the present invention, it is possible to provide an external composition that is excellent in stability, has a good feeling in use, and is further excellent in detergency without blending a surfactant.

Embodiments for Carrying Out the Invention

[0010] Embodiments of the present invention will be described in detail. However, the present invention is not limited to the following embodiments.

[0011] <External composition> The external composition according to an embodiment of the present invention contains (A) polyethylene glycol, (B) glycerin, (C) an oil agent that is liquid at 25°C, and (D) a thickener, and does not contain a surfactant.

[0012] 〔(A) Polyethylene glycol〕 The component (A) used in the present invention can be used without particular limitation as long as it is usually used in cosmetics or external compositions. For example, polyethylene glycol 200 (PEG-4), polyethylene glycol 300 (PEG-6), polyethylene glycol 400 (PEG-8), polyethylene glycol 600 (PEG-12), polyethylene glycol 1000 (PEG-20), etc. can be mentioned. These can be used alone or in combination of two or more.

[0013] Examples of commercially available products of the component (A) include, for example, "PEG#200T", "PEG#200", "PEG#300", "PEG#400", "PEG#600", "PEG#1000" (manufactured by NOF Corporation, etc.).

[0014] Among these (A) components, from the viewpoint of remarkably exhibiting the effects of the present invention, low-molecular-weight polyethylene glycol is preferable. Specifically, polyethylene glycol having an average molecular weight of 200 to 1000 is preferable, polyethylene glycol having an average molecular weight of 300 to 1000 is more preferable, and polyethylene glycol having an average molecular weight of 400 to 600 is still more preferable. The average molecular weight of the (A) component is the average molecular weight measured by the method described in the raw material standard for quasi-drugs.

[0015] The content of the (A) component can be appropriately set according to the types and amounts of other components, dosage forms, etc., and is not limited. However, from the viewpoint of remarkably exhibiting the effects of the present invention, for example, 20 to 75% by mass is preferable, 25 to 70% by mass is more preferable, and 30 to 60% by mass is still more preferable with respect to the total amount of the external composition.

[0016] [(B) Glycerin] The (B) component used in the present invention can be used without particular limitation as long as it is usually used in cosmetics or external compositions.

[0017] The content of the (B) component can be appropriately set according to the types and amounts of other components, dosage forms, etc., and is not limited. However, from the viewpoint of remarkably exhibiting the effects of the present invention, for example, 15 to 60% by mass is preferable, 18 to 55% by mass is more preferable, and 20 to 50% by mass is still more preferable with respect to the total amount of the external composition.

[0018] The total content [(A) + (B)] of the (A) component and the (B) component can be appropriately set according to the types and amounts of other components, dosage forms, etc., and is not limited. However, from the viewpoint of remarkably exhibiting the effects of the present invention, for example, 50% by mass or more is preferable, and ranges of 50 to 95% by mass, 55 to 90% by mass, and 55 to 85% by mass are preferable with respect to the total amount of the external composition. When the total content [(A) + (B)] is within the above range, an external composition that is more effectively excellent in stability, has a good feeling in use, and is further excellent in detergency can be obtained.

[0019] The mass ratio [(A) / (B)] of component (A) and component (B) can be appropriately set according to the types and amounts of other components, dosage forms, etc., and is not limited. However, from the viewpoint of significantly achieving the effects of the present invention, for example, it is preferably 1 or more and less than 6, more preferably 1 or more and less than 3, still more preferably 1 or more and less than 2.5, and particularly preferably 1 or more and less than 2.2. When the mass ratio [(A) / (B)] is within the above range, it is possible to obtain an external composition that is more effective, excellent in stability, has a good feeling in use, and is also excellent in detergency.

[0020] The external composition according to an embodiment of the present invention may contain other polyhydric alcohols excluding component (A) and component (B). Examples of other polyhydric alcohols include ethylene glycol, diethylene glycol, dipropylene glycol, polypropylene glycol, 1,3-butylene glycol, propylene glycol, diglycerin, triglycerin, polyglycerin, etc. These can be used alone or in combination of two or more. Among them, propylene glycol is preferable from the viewpoint of excellent feeling in use.

[0021] The content of the other polyhydric alcohol can be appropriately set according to the types and amounts of other components, dosage forms, etc., and is not limited. However, from the viewpoint of significantly achieving the effects of the present invention, for example, it is preferably 50% by mass or less based on the total amount of the external composition. When the other polyhydric alcohol is blended, the total content of component (A), component (B), and the other polyhydric alcohol can be appropriately set according to the types and amounts of other components, dosage forms, etc., and is not limited. However, for example, it is preferably 80 to 95% by mass, more preferably 85 to 95% by mass, and still more preferably 90 to 95% by mass based on the total amount of the external composition.

[0022] [(C) Oil agent] The component (C) used in the present invention can be used without particular limitation as long as it is an oily agent that is liquid at 25°C and is usually used in cosmetics or external compositions. For example, polar oily agents, low-polarity oily agents, or non-polar oils that are liquid at 25°C can be mentioned. More specifically, hydrocarbon oils, silicone oils, ester oils, vegetable oils, animal oils, higher fatty acids, higher alcohols, alkyl glyceryl ethers, fluorine oils, etc. can be mentioned. More specifically, linear or branched hydrocarbon oils such as liquid paraffin, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, polybutene, polyisobutene, hydrogenated polyisobutene, squalane, squalene, α-olefin oligomer, isohexadecane, isododecane, etc.; silicone oils such as methylpolysiloxane, dimethylpolysiloxane, dimethylcyclopolysiloxane, decamethylcyclopentasiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, octamethylcyclotetrasiloxane, octamethylcyclopentasiloxane, decamethylcyclohexasiloxane, stearoxysilicone, etc., higher alkoxy-modified silicone, alkyl-modified silicone, higher fatty acid ester-modified silicone, etc.; ester oils of linear fatty acids and lower alcohols such as diethyl sebacate, isopropyl myristate, butyl myristate, isopropyl palmitate, ethyl stearate, butyl stearate, ethyl oleate, ethyl linoleate, isopropyl linoleate, etc.; ester oils of linear fatty acids and linear higher alcohols such as cetyl caprate, hexyl laurate, decyl myristate, myristyl myristate, cetyl myristate, cetyl palmitate, stearyl stearate, decyl oleate, oleyl oleate, etc.; ester oils of linear fatty acids and branched-chain alcohols such as isostearyl laurate, isotridecyl myristate, isocetyl myristate, isostearyl myristate, octyldodecyl myristate, 2-ethylhexyl palmitate, isocetyl palmitate, isostearyl palmitate, 2-ethylhexyl stearate, isocetyl stearate, isodecyl oleate, octyldodecyl oleate, octyldodecyl ricinoleate, etc.; ester oils of branched-chain fatty acids and lower alcohols such as ethyl isostearate, isopropyl isostearate, etc.; ester oils of branched-chain fatty acids and linear higher alcohols such as cetyl 2-ethylhexanoate, cetostearyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, hexyl isostearate, 2-hexyldecyl isostearate, etc.Esters of fatty acids and polyhydric alcohols such as ethylene glycol dioctanoate, ethylene glycol dioleate, propylene glycol caprylate, propylene glycol dicaprylate, propylene glycol di(caprylate / caprate), propylene glycol dicaprate, dipropylene glycol dioleate, neopentyl glycol dicaprate, neopentyl glycol dioctanoate, glyceryl tricaprylate, glyceryl tri(2-ethylhexanoate), glyceryl tri(caprylate / caprate), glyceryl triisopalmitate, glyceryl triisostearate, diglyceryl triisostearate, glyceryl tri(caprylate / caprate / myristate / stearate), glyceryl (ethylhexanoate / stearate / adipate), trimethylolpropane tri(2-ethylhexanoate), trimethylolpropane triisostearate, pentaerythritol tetra(2-ethylhexanoate), pentaerythritol tetraisostearate, pentaerythritol tetra(2-ethylhexanoate); Ester oils of branched-chain fatty acids and branched-chain alcohols such as octyldodecyl neopentanoate, isocetyl octanoate, isostearyl octanoate, 2-ethylhexyl isopalmitate, hexyldecyl dimethyloctanoate, octyldodecyl dimethyloctanoate, 2-ethylhexyl isopalmitate, isocetyl isostearate, isostearyl isostearate, isostearyl octyldodecyl; Ester oils having hydroxyl groups such as lauryl lactate, myristyl lactate, cetyl lactate, octyldodecyl lactate, trioctyl citrate, triisocetyl citrate, trioctyldodecyl citrate, diisostearyl malate, trimethyl trimellitate; Ester oils of dibasic acids such as diethylhexyl succinate, diethoxyethyl succinate, dioctyl succinate, diisopropyl adipate, diisobutyl adipate, dioctyl adipate, diethyl sebacate, diisopropyl sebacate, dioctyl sebacate;Vegetable oils such as rapeseed oil, avocado oil, almond oil, olive oil, kukui nut oil, sesame oil, wheat germ oil, rice germ oil, rice bran oil, rice oil, safflower oil, sunflower oil, soybean oil, evening primrose oil, corn oil, rapeseed oil, peppermint oil, palm oil, palm kernel oil, castor oil, jojoba oil, grape seed oil, macadamia nut oil, meadowfoam oil, mink oil, coconut oil, rose hip oil, etc.; Animal oils such as liquid horse oil, mink oil, liquid lanolin, etc.; Higher fatty acids such as oleic acid, isostearic acid, etc.; Higher alcohols such as isostearyl alcohol, octyldodecanol, hexyl decanol, etc.; Alkyl glyceryl ethers such as isostearyl glyceryl ether, etc.; Fluorine oils such as fluoropolyether, perfluoroalkyl ether silicone, etc.; These can be used alone or in combination of two or more.;

[0023] Among these (C) components, from the viewpoint of remarkably exhibiting the effects of the present invention, hydrocarbon oils, ester oils, vegetable oils, animal oils, higher fatty acids, higher alcohols, and alkyl glyceryl ethers are preferable, hydrocarbon oils and ester oils of fatty acids and polyhydric alcohols are more preferable, and among them, liquid paraffin, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, polybutene, polyisobutene, hydrogenated polyisobutene, squalane, squalene, α-olefin oligomer, isohexadecane, isododecane, glyceryl tri(2-ethylhexanoate), diglyceryl triisostearate, diethyl sebacate, isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, cetyl 2-ethylhexanoate, glyceryl tri(caprylyl / caprate), pentaerythritol tetra(2-ethylhexanoate), isostearyl isostearate, diisostearyl malate, diethylhexyl succinate, diethoxyethyl succinate, diethyl sebacate, olive oil, jojoba oil, macadamia nut oil, meadowfoam oil, oleic acid, isostearic acid, and isostearyl alcohol are still more preferable. Particularly, hydrogenated polyisobutene, squalane, glyceryl tri(2-ethylhexanoate), diglyceryl triisostearate, isopropyl myristate, isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, cetyl 2-ethylhexanoate, glyceryl tri(caprylyl / caprate), diethyl sebacate, olive oil, jojoba oil, macadamia nut oil, and meadowfoam oil are preferable.

[0024] Examples of commercially available hydrocarbon oils include, for example, "Silcol P-70" (manufactured by MOLESCO), "Pearl Ream 3 [kinematic viscosity (37.8 °C): 1.4 mm 2 / s, number average molecular weight: 217]", "Pearl Ream 4 [kinematic viscosity (37.8 °C): 3.1 mm 2 / s, number average molecular weight: 272]", "Pearl Ream EX [kinematic viscosity (37.8 °C): 10.6 mm 2 / s, number average molecular weight: 354]", "Pearl Ream 6 [kinematic viscosity (37.8 °C): 20.1 mm 2 / s, number average molecular weight: 350〕」(above, manufactured by NOF Corporation), 「NIKKOL Squalane」, 「NIKKOL Sugar Squalane」(above, manufactured by Nikko Chemicals Co., Ltd.) and the like can be mentioned. Examples of commercially available ester oils include, for example, 「NIKKOL IPM-EX」, 「NIKKOL IPP」, 「NIKKOL IOP」, 「NIKKOL CIO」, 「NIKKOL Triester F-810」(above, manufactured by Nippon Surfactant Industry Co., Ltd.), 「FineNeo-DES」(manufactured by Nippon Fine Chemical Co., Ltd.) and the like. Examples of commercially available vegetable oils include, for example, 「olive oil」, 「NIKKOL Jojoba Oil S」, 「NIKKOL Macadamia Nut Oil」(above, manufactured by Nikko Chemicals Co., Ltd.), 「CROPURE MEADOWFOAM-LQ-(JP)」(manufactured by Croda) and the like.

[0025] The IOB value of the component (C) is not particularly limited, and for example, those having a value of 0.5 or less, 0.45 or less, 0.4 or less, etc. can be used. The IOB value is an abbreviation for Inorganic / Organic Balance (inorganic / organic ratio), and corresponds to the ratio of the inorganic value of a compound to the organic value of the compound determined by an organic concept diagram, and is a value indicating the degree of polarity of an organic compound (for example, Hajime Fujita, Prediction of Organic Compounds and Organic Concept Diagrams, Chemistry Division Vol. 11, No. 10 (1957) pp. 719-725).

[0026] In the present invention, the non-polar oil agent is an oil agent having an IOB value that is substantially 0, specifically, an oil agent having an IOB value of 0.01 or less. The low-polarity oil agent is an oil agent having polarity and means an oil agent having an IOB value of 0.1 or less.

[0027] The content of the (C) component can be appropriately set according to the types and amounts of other components, dosage forms, etc., and is not limited. However, from the perspective of significantly demonstrating the effects of the present invention, for example, it is preferably 3% by mass or more, more preferably 3 to 20% by mass, still more preferably 5 to 15% by mass, and particularly preferably 6 to 10% by mass based on the total amount of the external composition. When the content is within the above range, an external composition can be obtained that is more effective, has excellent stability, good usability, and further excellent detergency.

[0028] [(D) Thickener] As the (D) thickener, any thickener commonly used in cosmetics or external compositions can be used without particular limitation. For example, carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer (acrylic acid / methacrylic acid alkyl copolymer), polyacrylamide polyvinyl alcohol, polyvinyl pyrrolidone, sodium polyacrylate, dextrin fatty acid ester, pectin, (hydroxyethyl acrylate / sodium acryloyldimethyltaurate) copolymer, dimethyldistearylammonium hectorite, (acryloyldimethyltaurine ammonium / vinyl pyrrolidone) copolymer and synthetic polymer thickeners such as salts thereof; natural polymer thickeners such as hyaluronic acid, xanthan gum, carrageenan and salts thereof; semi-synthetic polymer thickeners such as carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, alginate, methyl cellulose and salts thereof; inorganic polymer thickeners such as bentonite, laponite, smectite, fine particle silicon oxide, colloidal alumina and salts thereof. Examples of the above salts include alkali metal salts such as sodium salt and potassium salt, alkaline earth metal salts such as calcium and magnesium, ammonium salt, organic amine salts such as triethanolamine salt and triethylamine salt. These can be used alone or in combination of two or more.

[0029] Among these (D) components, from the viewpoint of remarkably exhibiting the effects of the present invention, a synthetic polymer thickener is preferred, and among them, vinyl thickeners such as carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, polyvinyl alcohol, polyvinyl pyrrolidone and their salts, (hydroxyethyl acrylate / sodium acryloyldimethyltaurate) copolymer, and polyacrylamide are more preferred, and carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer and their salts are even more preferred.

[0030] Carboxyvinyl polymer is a vinyl polymer mainly composed of acrylic acid, methacrylic acid, etc. having a carboxyl group, and is a compound denoted by the INCI name "CARBOMER", and there are no particular restrictions on its monomer composition, molecular weight, etc., and various commercially available carboxyvinyl polymers can be used without particular restrictions. Examples of these commercial products include "Carbopol 940", "Carbopol 941", "Carbopol 980", "Carbopol 981", "Carbopol Ultrez10", "Carbopol ETD2050" (above, manufactured by Lubrizol Corporation), "Hyviswako 103", "Hyviswako 104", "Hyviswako 105" (above, manufactured by Wako Pure Chemical Industries, Ltd.), "Syntalen K", "Syntalen L" (above, manufactured by 3V Sigma), "Acpec HV-501", "Acpec HV-504", "Acpec HV-505", "Acpec HV-501E", "Acpec HV-504E", "Acpec HV-505E", "Acpec HV-501ER", "Acpec HV-505ED" (above, manufactured by Sumitomo Seika Chemicals Co., Ltd.), etc.

[0031] An alkyl-modified carboxyvinyl polymer is a carboxyvinyl polymer that has been alkyl-modified. More specifically, some or all of the carboxyl groups in the carboxyvinyl polymer are esterified with an alkyl group having about C10 to C30, for example, and it is a compound denoted by the INCI name "ACRYLATES / C10-30 ALKYL ACRYLATE CROSSPOLYMER ((Acrylates / Alkyl Acrylate (C10-30)) Cross Polymer)". There are no particular restrictions on the type of vinyl polymer that is the raw material of the alkyl-modified carboxyvinyl polymer, its molecular weight, the degree of esterification, the alkyl group used for esterification, etc., and various commercially available alkyl-modified carboxyvinyl polymers can be used. Examples of these commercial products include "Pemulen TR-1", "Pemulen TR-2", "Carbopol 1342", "Carbopol 980", "Carbopol 940", "Carbopol 934", "Carbopol 2984", "Carbopol Ultrez21", "Carbopol Ultrez20", "Carbopol Ultrez30", "Carbopol Ultrez10", "Carbopol ETD2020", "Carbopol 1382", "Carbopol AQUA SF-1" (manufactured by Lubrizol Corporation), "DERMACRYL AQF" (manufactured by AkzoNobel), "Rubimer 100P" (manufactured by BASF), "Leoir MS-100" (manufactured by Lion), etc. In particular, carboxyvinyl polymers and alkyl-modified carboxyvinyl polymers having a viscosity of 20,000 to 60,000 mPa·s in a 0.5% aqueous solution adjusted to pH = 7.5 at 25°C are preferred.

[0032] (D) The content of the component can be appropriately set according to the types and amounts of other components, the dosage form, etc., and is not limited. However, from the viewpoint of significantly exhibiting the effects of the present invention, for example, 0.01 to 5% by mass is preferred, 0.05 to 3% by mass is more preferred, 0.1 to 2% by mass is still more preferred, and 0.2 to 1.5% by mass is particularly preferred based on the total amount of the external composition. When the content is within the above range, an external composition can be obtained that is more effective, has excellent stability, good usability, and further excellent detergency.

[0033] In addition, the external composition according to the embodiment of the present invention may also contain an alkylene oxide derivative. The alkylene oxide derivative can be used without particular limitation as long as it is usually used in cosmetics or external compositions. For example, alkylene glycols having 3 to 5 carbon atoms, polyoxyethylene glyceryl ether, polyoxyethylene polyoxypropylene glyceryl ether, polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether, and the like can be mentioned.

[0034] 〔Other Components〕 The external composition according to the embodiment of the present invention can contain other components other than the components (A) to (D) and the like as long as the effects of the present invention are not impaired. Although not limited to the following, for example, viscosity modifiers, antiseptics / preservatives, antioxidants, chelating agents, pH adjusters, solubilizing agents, suspending agents, isotonic agents, buffers, soothing agents, dispersants, colorants, water, etc. can be blended. These can be used alone or in combination of two or more.

[0035] Examples of the viscosity modifier include viscosity reducers such as ethanol, propanol, isopropanol, ethylene glycol, polyglycerin, sorbitol, pentaerythritol, benzenesulfonate, bisethoxydiglycol cyclohexanedicarboxylate, and lower alkylbenzenesulfonates having about 1 to 4 carbon atoms.

[0036] Examples of the antiseptic / preservative include isopropylmethylphenol, chlorobutanol, benzyl alcohol, phenethyl alcohol, benzoic acid, sodium benzoate, dehydroacetic acid, sodium dehydroacetate, isobutyl paraoxybenzoate, isopropyl paraoxybenzoate, butyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, benzyl paraoxybenzoate, methyl paraoxybenzoate (methylparaben), phenoxyethanol, ethylhexylglycerin, glyceryl caprate, alkanediols (for example, pentanediol, hexanediol), and the like.

[0037] Examples of antioxidants include dibutylhydroxytoluene (BHT), butylhydroxyanisole, sorbic acid, sodium sulfite, ascorbic acid, erythorbic acid, L-cysteine hydrochloride, and the like.

[0038] Examples of chelating agents include EDTA disodium salt, EDTA calcium disodium salt, and the like.

[0039] Examples of pH adjusters include inorganic acids (such as hydrochloric acid, sulfuric acid, etc.), organic acids (such as lactic acid, sodium lactate, citric acid, sodium citrate, succinic acid, sodium succinate, etc.), inorganic bases (such as potassium hydroxide, sodium hydroxide, etc.), organic bases (such as triethanolamine, diisopropanolamine, triisopropanolamine, etc.), and the like.

[0040] Examples of solubilizing agents include D-mannitol, benzyl benzoate, ethanol, trisaminomethane, cholesterol, triethanolamine, sodium carbonate, sodium citrate, and the like.

[0041] Examples of suspending agents include benzalkonium chloride, benzethonium chloride, and the like.

[0042] Examples of isotonic agents include sodium chloride, D-mannitol, and the like.

[0043] Examples of buffers include phosphates, acetates, carbonates, citrates, and the like.

[0044] Examples of soothing agents include benzyl alcohol, and the like.

[0045] Examples of dispersants include sodium pyrophosphate, sodium hexametaphosphate, methyl vinyl ether / maleic anhydride cross-linked copolymer, organic acids, and the like.

[0046] Examples of the coloring agent include inorganic pigments, natural pigments, and the like.

[0047] Examples of the water include purified water, distilled water, ion-exchanged water, pure water, and the like. The water content can be appropriately set according to the types and amounts of other components, dosage forms, etc., and is not limited. However, from the viewpoint of significantly exhibiting the effects of the present invention, for example, less than 20% by mass is preferable, less than 15% by mass is more preferable, less than 10% by mass is still more preferable, and less than 8% by mass is particularly preferable with respect to the total amount of the external composition. Also, it may be 0 to 5% by mass, 0 to 1% by mass, 0 to 0.5% by mass, or 0 to 0.1% by mass. When the content is within the above range, an external composition that is more effective, has excellent stability, has a good feeling in use, and is further excellent in detergency can be obtained.

[0048] The external composition according to an embodiment of the present invention can contain other active ingredients as long as the effects of the present invention are not impaired. Specific examples of the active ingredients include, but are not limited to, for example, moisturizing components, pearl luster imparting agents, scrubbing agents, blood circulation promoting agents, astringent components, ultraviolet absorbing components, ultraviolet scattering components, antibacterial components, anti-inflammatory agents, vitamins, peptides or their derivatives, amino acids or their derivatives, cell activation components, and the like. These can be used alone or in combination of two or more.

[0049] Examples of the moisturizing component include saccharides such as trehalose, xylitol, and oligosaccharides, heparin-like substances, sodium chondroitin sulfate, high molecular compounds such as collagen, elastin, keratin, chitin, and chitosan, amino acids such as glycine, aspartic acid, and arginine, natural moisturizing factors such as sodium lactate, urea, and sodium pyrrolidonecarboxylate, and plant extract extracts such as chamomile extract, witch hazel extract, tea extract, perilla extract, and coix seed extract.

[0050] Examples of the pearl luster imparting agent include ethylene glycol distearate, ethylene glycol monostearate, triethylene glycol distearate, and the like.

[0051] Examples of the scrubbing agent include apricot kernel powder, almond shell powder, apricot kernel powder, sodium chloride granules, olive kernel powder, seaweed dried product granules, candelilla wax, walnut shell powder, cherry pit powder, coral powder, charcoal powder, hashish shell powder, polyethylene powder, anhydrous silicic acid, etc.

[0052] Examples of the blood circulation promoter include acetylcholine, ichthyol, caffeine, capsaicin, cantharidin tincture, γ-oryzanol, zingiber officinale tincture, gingerol, celeferin, ginseng extract, tannic acid, capsicum tincture, terazoline, nicotinic acid tocopherol, benzyl nicotinate, etc.

[0053] Examples of the astringent component include zinc sulfate, hydroxyaluminum, aluminum chloride, zinc sulfocarbolate, and tannic acid, etc.

[0054] Examples of the ultraviolet absorbing component include octyl triazone, diethylamino hydroxybenzoyl hexyl benzoate, octyl dimethoxybenzylidene dioxoimidazolidine propionate, 2-ethylhexyl paramethoxycinnamate, t-butyl methoxydibenzoylmethane, phenylbenzimidazole sulfonic acid, octyl methoxycinnamate, ethylhexyl methoxycinnamate, etc.

[0055] Examples of the ultraviolet scattering component include inorganic compounds such as hydrous silicic acid, zinc silicate, cerium silicate, titanium silicate, zinc oxide, zirconium oxide, cerium oxide, titanium oxide, iron oxide, anhydrous silicic acid, etc.; those obtained by coating these inorganic compounds with inorganic powders such as hydrous silicic acid, aluminum hydroxide, mica, and talc; those obtained by compounding with resin powders such as polyamide, polyethylene, polyester, polystyrene, and nylon; those treated with silicone oil, fatty acid aluminum salt, etc.

[0056] Examples of the antibacterial components include isopropylmethylphenol, chlorhexidine, benzalkonium chloride, acrinol, ethanol, benzethonium chloride, cresol, gluconic acid and its derivatives, povidone iodine, potassium iodide, iodine, triclocarban, triclosan, photosensitizer No. 101, photosensitizer No. 201, parabens, phenoxyethanol, 1,2 - pentanediol, alkyl dimino glycine hydrochloride, piroctolamine, miconazole, and the like.

[0057] Examples of the anti - inflammatory agents include, for example, non - steroidal anti - inflammatory agents or steroidal anti - inflammatory agents, etc. Specifically, glycyrrhizic acid, glycyrrhetinic acid, stearyl glycyrrhetinate, allantoin, epsilon - aminocaproic acid, salicylic acid, methyl salicylate, glycol salicylate, indomethacin, felbinac, ibuprofen, ibuprofen piconol, ketoprofen, bufexamac, butyl flufenamate, bendazac, piroxicam, suprofen, azulene, guaiazulene, dexamethasone valerate acetate, dexamethasone, prodnisolone valerate acetate (prodnisolone valerate acetate ester), prodnisolone acetate, prodnisolone, hydrocortisone acetate, hydrocortisone, ufenamate, bufexamac, and salts thereof, etc. Particularly preferred are glycyrrhizic acid, glycyrrhetinic acid, stearyl glycyrrhetinate, allantoin, epsilon - aminocaproic acid, and salts thereof.

[0058] Examples of vitamins include vitamin E such as dl-α-tocopherol, d-δ-tocopherol, succinic acid dl-α-tocopherol, calcium succinate dl-α-tocopherol, etc.; vitamin B2 such as riboflavin, flavin mononucleotide, flavin adenine dinucleotide, riboflavin butyrate, riboflavin tetrabutyrate, sodium riboflavin 5'-phosphate, riboflavin tetranicotinate, etc.; nicotinic acid such as nicotinic acid dl-α-tocopherol, benzyl nicotinate, methyl nicotinate, β-butoxyethyl nicotinate, 1-(4-methylphenyl)ethyl nicotinate, etc.; vitamin C such as ascorbigen-A, L-ascorbic acid 2-glucoside, ascorbic acid stearate, ascorbic acid palmitate, L-ascorbyl dipalmitate, etc.; vitamin D such as methyl hesperidin, ergocalciferol, cholecalciferol, etc.; vitamin K such as phylloquinone, menaquinone, etc.; vitamin B1 such as γ-oryzanol, dibenzoyl thiamine, dibenzoyl thiamine hydrochloride, thiamine hydrochloride, cetyl thiamine hydrochloride, thiamine thiocyanate, lauryl thiamine hydrochloride, thiamine nitrate, thiamine monophosphate, thiamine lysine salt, thiamine triphosphate, thiamine monophosphate ester phosphate, thiamine monophosphate ester, thiamine diphosphate ester, thiamine diphosphate ester hydrochloride, thiamine triphosphate ester, thiamine triphosphate ester monophosphate, etc.; vitamin B6 such as pyridoxine hydrochloride, pyridoxine acetate, pyridoxal hydrochloride, pyridoxal 5'-phosphate, pyridoxamine hydrochloride, etc.; vitamin B12 such as cyanocobalamin, hydroxocobalamin, deoxyadenosylcobalamin, etc.; folic acid such as folic acid, pteroylglutamic acid, etc.; nicotinic acid such as nicotinic acid, nicotinamide, etc.; pantothenic acid such as pantothenic acid, calcium pantothenate, pantothenyl alcohol (panthenol), D-pantethine, D-pantothenic acid, coenzyme A, pantothenyl ethyl ether, etc.; biotin such as biotin, biocytin, etc.; vitamin C which is an ascorbic acid derivative such as ascorbic acid, sodium ascorbate, dehydroascorbic acid, sodium ascorbate phosphate, magnesium ascorbate phosphate, etc.Examples of vitamin-like active factors include carnitine, ferulic acid, α-lipoic acid, orotic acid, etc.

[0059] Examples of peptides or their derivatives include, for example, keratin hydrolyzate, hydrolyzed keratin, collagen, fish-derived collagen, atelocollagen, gelatin, elastin, elastin hydrolyzate, collagen hydrolyzate, hydrolyzed collagen, hydroxypropyl ammonium chloride hydrolyzed collagen, elastin hydrolyzate, conchiolin hydrolyzate, hydrolyzed conchiolin, silk protein hydrolyzate, hydrolyzed silk, lauroyl hydrolyzed silk sodium, soy protein hydrolyzate, hydrolyzed soy protein, wheat protein, wheat protein hydrolyzate, hydrolyzed wheat protein, casein hydrolyzate, acylated peptides (palmitoyl oligopeptide, palmitoyl pentapeptide, palmitoyl tetrapeptide, etc.), and the like.

[0060] Examples of amino acids or their derivatives include, for example, betaine (trimethylglycine), proline, hydroxyproline, arginine, lysine, serine, glycine, alanine, phenylalanine, β-alanine, threonine, glutamic acid, glutamine, asparagine, aspartic acid, cysteine, cystine, methionine, leucine, isoleucine, valine, histidine, taurine, γ-aminobutyric acid, γ-amino-β-hydroxybutyric acid, carnitine, carnosine, creatine, and the like.

[0061] Examples of cell-activating components include, for example, amino acids such as γ-aminobutyric acid and ε-aminocaproic acid, vitamins such as retinol, thiamine, riboflavin, pyridoxine hydrochloride, and pantothenic acids, α-hydroxy acids such as glycolic acid and lactic acid, tannins, flavonoids, saponins, photosensitizer No. 301, and the like.

[0062] [Surfactant] The external composition according to an embodiment of the present invention does not contain a surfactant. Since it does not contain surfactants such as anionic surfactants, nonionic surfactants, cationic surfactants, and amphoteric surfactants, it is highly useful in that it can be suitably used by users who seek gentleness to the skin, or for skin with a reduced barrier function, a lowered threshold to irritation, and which is prone to feeling irritation. In the present invention, "not containing a surfactant" means substantially not containing a surfactant. Specifically, it means not containing a surfactant or, even if it contains a surfactant, the amount is trace. For example, even if it contains a surfactant, less than 0.3% by mass, more preferably less than 0.1% by mass, still more preferably less than 0.01% by mass, and particularly preferably 0% by mass, based on the total amount of the external composition, is preferred.

[0063] [pH] The pH of the external composition according to an embodiment of the present invention can be appropriately set according to the dosage form, method of use, etc., and is not limited as long as it is within a physiologically or pharmaceutically acceptable range. For example, 3.5 to 7.5 is preferred, 4.0 to 7.0 is more preferred, and 4.0 to 6.0 is still more preferred.

[0064] [Viscosity] The viscosity (25°C) of the external composition according to an embodiment of the present invention can be appropriately set according to the dosage form, etc., and is not limited. For example, 5,000 to 100,000 mPa·s is preferred, 10,000 to 80,000 mPa·s is more preferred, and 30,000 to 60,000 mPa·s is still more preferred.

[0065] The above viscosity (25°C) refers to the viscosity measured by a single cylindrical rotational viscometer (Brookfield type viscometer) in accordance with the viscosity measurement method described in the general test method of the 17th revised Japanese Pharmacopoeia. Specifically, it refers to the value measured using TV-10M (manufactured by Toki Sangyo Co., Ltd.). The selection of conditions such as the rotor and rotation speed is based on the instruction manual of this machine, and the viscosity at 25°C is measured. The description of a single cylindrical rotational viscometer is given below. A single cylindrical rotational viscometer is a viscometer that measures the torque when a cylinder in a liquid is rotated at a constant angular velocity. By experimentally determining the apparatus constant KB in advance using a standard liquid for viscometer calibration, the viscosity η of the liquid is calculated by the following formula. η = KB × T / ω η: Viscosity of the liquid (mPa·s) KB: Apparatus constant (rad / cm 3 ) ω: Angular velocity (rad / s) T: Torque acting on the cylinder surface (10 -7 N·m)

[0066] As described above, since the external composition according to the embodiment of the present invention is an external composition containing (A) polyethylene glycol, (B) glycerin, (C) an oil agent that is liquid at 25°C, and (D) a thickener, it is useful in that it can provide an external composition that is excellent in stability, has a good feeling in use, and is further excellent in detergency even without containing a surfactant. In particular, it is particularly useful in that it can provide an external composition that is excellent in stability, has a good feeling in use, and further has an excellent effect of removing makeup cosmetics such as face powder, foundation, concealer, blusher, eyeliner, and eyeshadow even without containing a surfactant. Furthermore, since the external composition according to the embodiment of the present invention does not contain a surfactant, it is highly useful in that it can be suitably used by users who seek gentleness to the skin or by skin that has a reduced barrier function, a lowered threshold to irritation, and is prone to feeling irritation.

[0067] Also, the external composition according to an embodiment of the present invention can give a warm feeling to the skin when applied to the skin such as by applying it to the skin mainly due to the heat of hydration of components (A) and (B), and it is highly useful in that effects such as promoting blood circulation, a relaxing effect of activating the parasympathetic nerve, and an effect of improving detergency by opening pores and softening the skin can be expected.

[0068] The external composition according to an embodiment of the present invention, when applied to the skin such as by applying it to the skin, from the viewpoint of imparting a warming sensation to the skin, contains (A) polyethylene glycol, (B) glycerin, (C) an oil agent that is liquid at 25°C, and (D) a thickening agent, and is an external composition that does not contain a surfactant, and it is preferable to be an external composition that satisfies the following conditions. Condition: 5 g of water was filled into a glass container (colorless and transparent, 20 mL), kept at a constant temperature of 25°C, 5 g of the above external composition kept at a constant temperature of 25°C was added into the glass container, and stirred for about 1 minute. The change over time in the solution temperature in the glass container during this time was continuously measured with a thermometer, and the maximum temperature when measuring the change over time in the solution temperature in the glass container within this time was 28°C or higher.

[0069] The maximum temperature under the above conditions is preferably 29°C or higher, more preferably 30°C or higher, still more preferably 31°C or higher, and particularly preferably 32°C or higher.

[0070] [Formulation form] The external composition according to an embodiment of the present invention can be prepared in various forms by blending the above components (A) to (D) and, if necessary, further components, and mixing and stirring according to a conventional method. The formulation form can be any dosage form suitable for application to the skin. Specifically, for example, lotions, gels, ointments, sheet agents (substrate-supported), mists, aerosol agents, spray agents, etc. can be mentioned. In particular, lotions, gels, and ointments are preferable, and gels are more preferable. More specifically, for example, skin toners, essences, hand creams, massage lotions, massage creams, massage gels, sunscreens, packs, masks and other basic cosmetics; and cleansing cosmetics such as face washes, cleansing (makeup removal), body shampoos, shampoos, rinse-in shampoos and treatments, scalp lotions, scalp essences, etc. can be mentioned. In particular, massage lotions, massage creams, massage gels, face washes, cleansing (makeup removal), and body shampoos are preferable, and face washes and cleansing (makeup removal) are more preferable. These preparations can be manufactured by methods conventional to those skilled in the art. For example, they can be manufactured according to the methods described in the General Rules for Preparations of the 17th Revised Japanese Pharmacopoeia, etc.

[0071] [Use] As an external composition according to an embodiment of the present invention, since it has excellent stability, good usability, and excellent detergency, it is preferably provided as an external composition for washing or a detergent. In particular, since it has an excellent effect of removing makeup cosmetics, it is preferably provided as an external composition for cleansing or a cleansing agent for removing makeup cosmetics.

[0072] As an external composition according to an embodiment of the present invention, since it gives a warm feeling to the skin mainly due to the heat of hydration of components (A) and (B), when applying it to the skin such as applying it to the skin, it is preferably provided as an external composition for imparting a warm feeling or a warm feeling imparting agent that gives a warm feeling to the skin. As an external composition according to an embodiment of the present invention, since a blood circulation promoting effect and a relaxation effect of activating the parasympathetic nerve can be expected by giving a warm feeling to the skin, it is preferably provided as an external composition for warm massage or a warm massage agent.

[0073] As an external composition according to an embodiment of the present invention, since an improvement in detergency resulting from opening of pores and softening of the skin can be expected by imparting a warm feeling to the skin, it is preferably provided as an external composition for warm washing or a warm washing agent. In particular, since it has an excellent effect of removing makeup cosmetics, it is preferably provided as an external composition for warm cleansing or a warm cleansing agent for removing makeup cosmetics.

[0074] As an external composition according to an embodiment of the present invention, since it does not contain a surfactant, it is suitable for users who seek gentleness to the skin or for skin with a reduced barrier function, a lowered threshold to stimuli, and who are prone to feeling stimuli, and is preferably provided as an external composition for sensitive skin.

[0075] As an external composition according to an embodiment of the present invention, since the above-described effects can be exhibited in combination, it is preferable to arbitrarily combine the above uses. For example, although not limited to the following, it is preferably provided as an external composition or a warming massage cleansing agent for warming massage washing. Among them, in particular, since it is excellent in the effect of removing makeup cosmetics, it is preferably provided as an external composition or a warming massage cleansing agent for warming massage cleansing.

[0076] [Container] The external composition according to an embodiment of the present invention can be contained and used in a container having a shape and a material appropriately selected according to the purpose of use and the application. Examples of the container shape include a bottle type, a tube type, a jar type, a spatula type, a dispenser type, a stick type, a pouch bag, and a tea pack. Examples of the material include polyethylene terephthalate, polypropylene, polyethylene (HDPE, LDPE, LLDPE, etc.), ABS resin, ethylene vinyl alcohol resin, polystyrene, glass, and metal (aluminum, etc.). Further, these materials can be used as a container material by performing various coating treatments, combining these materials by mixing them, for example, or laminating them in consideration of strength, flexibility, weather resistance, or stability of components. In addition, those skilled in the art can select the caliber and material of the nozzle of the container and the elution part of the preparation in order to limit the discharge amount from the container and reduce the adhesion to the container.

[0077] [Stabilization method] As an embodiment of the present invention, from the viewpoint of excellent stability, it preferably provides a method for stabilizing an external composition, which includes a step of blending and mixing (A) polyethylene glycol, (B) glycerin, (C) an oil agent that is liquid at 25°C, and (D) a thickener, and does not include a step of blending a surfactant.

[0078] [Method for imparting warming sensation] As one embodiment of the present invention, from the viewpoint of excellent temperature sensation imparting effect, an external composition containing (A) polyethylene glycol, (B) glycerin, (C) an oil agent that is liquid at 25°C, and (D) a thickener and not containing a surfactant is applied to the skin, and it is also preferably provided as a method for imparting a temperature sensation to the skin (excluding medical acts).

Examples

[0079] Hereinafter, the present invention will be described in more detail, but the present invention is not limited thereto. In Tables 1 showing examples and the formulation examples, the unit is mass%.

[0080] Compositions (Examples 1 to 6 and Comparative Examples 1 to 4) having the formulations shown in Table 1 below were prepared by a conventional method.

[0081]

Table 1

[0082] <<Test Example 1: Stability Test>> In order to evaluate the stability of each of the above compositions, the following test was conducted. 30 g of each of the above compositions was filled into a polyethylene material tube container (colorless and transparent, 50 mL) and stored at 50°C for 2 weeks. The appearance of each composition after storage was visually observed, and the stability was evaluated according to the following evaluation criteria. The results are shown in Table 1. (Evaluation Criteria) ○: State without separation ×: State separated into two layers

[0083] <<Test Example 2: Usability (Spreading) Test>> In order to evaluate the usability of each of the above compositions, the following test was conducted. For each of the above compositions, the usability was evaluated by 5 professional panels for cosmetic evaluation according to the following evaluation criteria. Then, the average score of all the panels was determined according to the following determination criteria. The results are shown in Table 1. (Evaluation Criteria) [Score]: [Evaluation Result] 5: Feeling easy to spread 4: Slightly feel easy to spread 3: Neither can be said 2: Slightly feel difficult to spread 1: Feel difficult to spread (Judgment criteria) [Judgment]: [Average score of evaluation] ◎: 4.0 or more ○: 3.0 or more and less than 4.0 △: 2.5 or more and less than 3.0 ×: Less than 2.5

[0084] [<Test Example 3: Cleaning property (makeup removal) test>] In order to evaluate the cleaning property (makeup removal) of each composition, the following test was conducted. On artificial leather (2 cm × 2 cm), an eyeliner (product name: Kate Rare Fit Gel Pencil BK-1 High Black, manufactured by Kanebo) was applied in a diameter of about 2 cm and left standing for 5 minutes. After 5 minutes had passed, 0.1 g of each of the above compositions was placed on the portion where the eyeliner was applied, and the eyeliner and the composition on the artificial leather were rubbed 20 times in a circular motion with the pulp of the finger. Then, while rubbing 10 times in a circular motion with the pulp of the finger, it was rinsed off with running water, and the degree of removal of the eyeliner was visually observed, and the cleaning property was evaluated according to the following evaluation criteria. The results are shown in Table 1. (Evaluation criteria) ○: Removed △: Slightly remaining ×: Completely remaining

[0085] [<Test Example 4: Warmth sensation imparting test>] In order to evaluate the warmth sensation imparting effect of each composition according to the examples, the following test was conducted. 5 g of water was filled into a glass container (colorless and transparent, 20 mL) and maintained at a constant temperature of 25°C. Next, 5 g of each of the above compositions according to the examples maintained at a constant temperature of 25°C was added into the glass container and stirred for about 1 minute. The change over time of the solution temperature in the glass container during that time was continuously measured with a thermometer, and the maximum temperature was determined. The results are shown in Table 2.

[0086]

Table 2

[0087] As shown in Table 1, Examples 1 to 6 of the present invention containing all of the components (A) to (D) were confirmed to be excellent in all evaluations of stability, usability, and detergency. On the other hand, in Comparative Example 1 not containing component (A), Comparative Example 2 not containing component (B), Comparative Example 3 not containing component (C), and Comparative Example 4 not containing component (D) among the components (A) to (D), it was confirmed that at least one evaluation of stability, usability, or detergency was inferior.

[0088] As shown in Table 2, Examples 1 to 6 of the present invention containing all of the components (A) to (D) were confirmed to be excellent in the warmth-providing effect.

[0089] From the above results, according to the present invention characterized by containing (A) polyethylene glycol, (B) glycerin, (C) an oil agent that is liquid at 25°C, and (D) a thickener and not containing a surfactant, it was confirmed that an external composition excellent in stability, having good usability, and further excellent in detergency can be obtained. At the same time, it was also confirmed that an external composition excellent in the warmth-providing effect can be obtained.

[0090] The formulation examples of the present invention are shown below.

[0091] 〔Formulation Example 1〕Cleansing Gel Polyethylene glycol 400 40% Glycerin 35% Polyoxyethylene glycerin (26 E.O.) 5% Squalane 5% Olive oil 2% Glyceryl tri-2-ethylhexanoate 2% Propylene glycol 10% Carboxyvinyl polymer 0.3% Potassium hydroxide 0.1% Water residue Total 100%

[0092] 〔Formulation Example 2〕Whitening Cleansing Gel Polyethylene Glycol 400 30% Glycerin 25% Dipropylene Glycol 5% Liquid Isoparaffin 3% Meadowfoam Oil 3% Cetyl 2-Ethylhexanoate 10% Alkyl Methacrylate-Methacrylic Acid Copolymer 1% Bis(ethoxydiglycol) cyclohexanedicarboxylate 0.5% Sodium Hyaluronate 0.05% Hydrolyzed Collagen 0.1% L-Ascorbic Acid 2-Glucoside 3% Potassium Hydroxide 0.5% Water residue Total 100%

[0093] 〔Formulation Example 3〕Massage Gel Polyethylene Glycol 600 40% Glycerin Remaining amount Polyoxyethylene Glycerin (26 E.O.) 15% Diglyceryl Triisostearate 3% Squalane 3% Jojoba Oil 3% Sodium Hyaluronate 0.05% d-δ-Tocopherol 0.5% Alkyl Methacrylate-Methacrylic Acid Copolymer 0.5% Polyoxybutylene Polyoxyethylene Polyoxypropylene Glyceryl Ether (3 B.O.)(8 E.O.)(5 P.O.) 5% Triethanolamine 0.5% Total 100%

Claims

1. An external composition containing (A) polyethylene glycol with an average molecular weight of 200 to 600, (B) glycerin, (C) an oil agent that is liquid at 25°C, and (D) a thickening agent, wherein as the above (D), it contains one or more selected from the group consisting of carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, and their salts, and does not contain a surfactant. For the total amount of the above external composition, the content of the above (A) polyethylene glycol with an average molecular weight of 200 to 600 is 20 to 75% by mass, the content of the above (B) glycerin is 15 to 60% by mass, the content of the above (C) oil agent that is liquid at 25°C is 3 to 20% by mass, and the content of one or more selected from the group consisting of the carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, and their salts is 0.01 to 5% by mass.

2. The external composition according to Claim 1, wherein the total content of the above (A) and (B) is 50% by mass or more based on the total amount of the external composition.

3. The external composition according to Claim 1 or 2, wherein the mass ratio [(A) / (B)] of the above (A) and (B) is 1 or more and less than 6.

4. The external composition according to any one of Claims 1 to 3, wherein as the above (C), it contains one or more selected from the group consisting of hydrocarbon oil, ester oil, vegetable oil, animal oil, higher fatty acid, higher alcohol, and alkyl glyceryl ether.

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