Topical skin components

Abstract

To provide a topical skin composition that has moderate viscosity while exhibiting excellent stability over time. [Solution] A composition for topical use on the skin, comprising the following components (A) to (F): (A) a polyglycerin fatty acid ester in which R in the fatty acid-derived group R-COO- is an alkyl group having 13 to 23 carbon atoms or an alkenyl group having 13 to 23 carbon atoms; (B) a polyhydric alcohol of trivalent or higher; (C) a polyhydric alcohol of divalent value; (D) an oily component that is liquid at 25°C; (E) a compound represented by formula (I), its salts and mixtures thereof; and (F) a nonionic surfactant other than component (A) and component (E) with an HLB of 4.5 to 12.0, and substantially free of water.

Description

Technical Field

[0001] The present invention relates to a composition for external use on the skin.

Background Art

[0002] Non-aqueous compositions have high affinity for the skin and high moisturizing power, and thus are widely used, for example, as skin care cosmetics such as beauty oils. As non-aqueous compositions, there are an oily agent type containing oil at a high concentration and an agent type based on polyhydric alcohol.

[0003] In products that are picked up by hand and applied to the skin, the usability is improved if the composition has appropriate viscosity without dripping when picked up by hand or when applied to the skin. For this reason, for example, in oily cosmetics, a gelling agent, a thickening agent, or a polysaccharide has been blended to impart viscosity (see, for example, Patent Document 1 and Patent Document 2). Further, as an agent type based on polyhydric alcohol, Patent Document 3 discloses a technique in which inulin is used in combination to reduce stickiness caused by polyhydric alcohol and thicken polyhydric alcohol to improve the usability.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] As described above, attempting to impart viscosity using gelling agents or thickeners can result in high viscosity, making it difficult to spread the cosmetic on the skin, leading to poor usability and problems with long-term stability. Furthermore, both oil-based cosmetics and formulations using polyhydric alcohols have difficulty achieving the same freshness as oil-in-water emulsion cosmetics, and have sometimes presented problems in terms of skin compatibility.

[0006] Therefore, the present invention aims to provide a topical skin composition that has appropriate viscosity while exhibiting excellent stability over time.

[0007] Another object of the present invention is to provide a topical skin composition that offers excellent usability, such as a refreshing feel and good skin compatibility. [Means for solving the problem]

[0008] The present invention includes the following configuration. <1> The following components (A) to (F); (A) Polyglycerol fatty acid esters in which R in the fatty acid-derived group R-COO- is an alkyl group having 13 to 23 carbon atoms or an alkenyl group having 13 to 23 carbon atoms. (B) Polyhydric alcohols with a valency of 3 or higher (C) Divalent polyhydric alcohol (D) Liquid oily component at 25°C (E) Compounds represented by the following formula (I), their salts, and mixtures thereof

[0009] [ka]

[0010] (In formula (I), x, y, and z are numbers greater than or equal to 0, x + y + z is between 3 and 20, R1 to R3 are each independently a hydrogen atom or an alkyl group having 12 to 18 carbon atoms, and at least one of R1 to R3 is an alkyl group having 12 to 18 carbon atoms.) (F) Nonionic surfactants other than component (A) and component (E) with an HLB of 4.5 to 12.0 It is a topical skin composition that contains and is substantially water-free.

[0011] <2> The degree of polymerization of glycerin in component (A) is 2 or more and 10 or less. <1> The topical skin composition described above.

[0012] <3> The aforementioned component (B) contains a polyhydric alcohol that is trivalent or greater and hexavalent or less. <1> or <2> The topical skin composition described above.

[0013] <4> The mass ratio (B) / (C) of component (B) to component (C) is 1 or more and 20 or less. <1> or <2> The topical skin composition described above.

[0014] <5> It is a polyhydric alcohol-based oil-type composition, <1> or <2> The topical skin composition described above.

[0015] <6> It is a leave-on cosmetic product. <1> or <2> The topical skin composition described above. [Effects of the Invention]

[0016] The topical skin composition of the present invention has appropriate viscosity while exhibiting excellent stability over time. [Modes for carrying out the invention]

[0017] Embodiments of the present invention will be described below. However, the present invention is not limited to the embodiments described below. In this specification, "X~Y" indicating a range includes X and Y, and means "X or more and Y or less". Unless otherwise specified, operations and measurements of physical properties, etc., are performed at room temperature (e.g., 25°C) / relative humidity (e.g., 50% RH). In this specification, when describing the content of a component, if there are two or more components, the content refers to the total amount of each component.

[0018] In the present invention, a so-called oil-in-polyhydric alcohol type dosage form can be obtained in which component (D) is the internal phase and the polyhydric alcohols of components (B) and (C) are the external phase. In view of the fact that increasing the viscosity of the external phase deteriorates the usability while attempting to stabilize the oil droplets of the internal phase, the inventors considered means for improving the stability over time even when the viscosity of the system was within a certain range. As a result, even when the viscosity of the system was within a certain range, it was found that the stability over time was improved by using components (A), component (E), and component (F) in combination as emulsifiers for dispersing the oil agent of the internal phase into the external phase. It is considered that components (A), component (E), and component (F) interact with each other to improve the stability of the oil droplets of the internal phase, and can suppress so-called drainage in which the oil droplets ooze out of the external phase and separation of the polyhydric alcohol layer. Further, the inventors found that not any polyhydric alcohol may be used for the external phase, and in a system in which the above components (A), component (E), and component (F) are combined, the emulsion is not formed or the effect of improving the stability over time is not exhibited while maintaining the viscosity unless components (B) and component (C) are used in combination. More specifically, by using components (B) and component (C) in combination, an oil-in-polyhydric alcohol type dosage form is formed, and when component (D) is emulsified in this system, components (A) and component (F) exhibit emulsifying ability, and further component (E) is considered necessary to maintain these oil droplets. Further, even when the external phase is a polyhydric alcohol, components (A) to (F) act organically integrally to give a fresh feeling in use and a skin external composition with good skin affinity. It was found that the stability over time is improved by using components (A), component (E), and component (F) in combination as emulsifiers for dispersing the oil agent of the internal phase into the external phase, even when the viscosity of the system is within a certain range. It is considered that components (A), component (E), and component (F) interact with each other to improve the stability of the oil droplets of the internal phase, and can suppress so-called drainage in which the oil droplets ooze out of the external phase and separation of the polyhydric alcohol layer. Further, the inventors found that not any polyhydric alcohol may be used for the external phase, and in a system in which the above components (A), component (E), and component (F) are combined, the emulsion is not formed or the effect of improving the stability over time is not exhibited while maintaining the viscosity unless components (B) and component (C) are used in combination. More specifically, by using components (B) and component (C) in combination, an oil-in-polyhydric alcohol type dosage form is formed, and when component (D) is emulsified in this system, components (A) and component (F) exhibit emulsifying ability, and further component (E) is considered necessary to maintain these oil droplets. Further, even when the external phase is a polyhydric alcohol, components (A) to (F) act organically integrally to give a fresh feeling in use and a skin external composition with good skin affinity.

[0019] Hereinafter, each component will be described. In the present specification, the skin external composition is also simply referred to as a composition.

[0020] (Component (A): A polyglycerol fatty acid ester in which R in the fatty acid-derived group R-COO- is an alkyl group having 13 to 23 carbon atoms or an alkenyl group having 13 to 23 carbon atoms) Polyglycerol fatty acid esters are compounds in which a hydroxyl group (or part thereof) of polyglycerol and a carboxyl group of a fatty acid form an ester bond. In the polyglycerol fatty acid ester of component (A), R in the fatty acid-derived group R-COO- is an alkyl group having 13 to 23 carbon atoms (preferably an alkyl group having 15 to 23 carbon atoms, more preferably an alkyl group having 17 to 23 carbon atoms) or an alkenyl group having 13 to 23 carbon atoms (preferably an alkenyl group having 15 to 23 carbon atoms, more preferably an alkenyl group having 17 to 23 carbon atoms). That is, the fatty acid that forms R-COO- has 14 to 24 carbon atoms. The alkyl and alkenyl groups here are unsubstituted. With a short number of carbon atoms, for example, polyglyceryl laurate, the viscosity is low and stability over time cannot be guaranteed (for example, Comparative Example 1 described later). Conversely, if the number of carbon atoms exceeds 25, the polyglycerol fatty acid ester does not dissolve sufficiently in component (B) and component (C), and the target polyhydric alcohol-in-oil type emulsion composition cannot be obtained.

[0021] The alkyl group having 13 to 23 carbon atoms is preferably a linear or branched alkyl group, and more preferably a branched alkyl group. Specific examples of fatty acids that form R-COO- (where R is an alkyl group having 13 to 23 carbon atoms) include myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, isostearic acid, isoarachidic acid, and isobehenic acid. Among these, the fatty acid that forms R-COO- (where R is an alkyl group having 13 to 23 carbon atoms) is preferably stearic acid or isostearic acid, and more preferably isostearic acid.

[0022] Examples of fatty acids that form an R-COO- (alkenyl group with 13 to 23 carbon atoms) include oleic acid and eicosenoic acid. Among these, oleic acid is preferred.

[0023] From the viewpoint of the effects of the present invention, the degree of polymerization of glycerin in component (A) is preferably 2 to 20, more preferably 2 to 10, even more preferably 2 to 8, and even more preferably 2 to 6.

[0024] The number of fatty acid bonds between the hydroxyl groups of polyglycerin is not particularly limited, but from the viewpoint of the effects of the present invention, 1 to 10 is preferred, 1 to 5 is more preferred, and 1 to 3 is even more preferred. Furthermore, when the number of bonds is 2 or more, the fatty acids bonded to each hydroxyl group may be one type or two or more types.

[0025] Component (A) specifically includes polyglyceryl palmitate, polyglyceryl dipalmitate, polyglyceryl tripalmitate, polyglyceryl stearate, polyglyceryl distearate, polyglyceryl tristearate, polyglyceryl pentastearate, polyglyceryl isostearate, polyglyceryl diisostearate, polyglyceryl triisostearate, polyglyceryl tetraisostearate, polyglyceryl nonaisostearate, polyglyceryl oleate, polyglyceryl dioleate, polyglyceryl trioleate, and polyglyceryl decaoleate. Component (A) preferably contains at least one selected from the group consisting of polyglyceryl isostearate, polyglyceryl diisostearate, polyglyceryl dioleate, polyglyceryl tristearate, and polyglyceryl trioleate, from the viewpoint of long-term stability, and more preferably contains at least one selected from the group consisting of polyglyceryl isostearate, polyglyceryl diisostearate, polyglyceryl dioleate, and polyglyceryl trioleate, and more preferably contains at least one selected from the group consisting of polyglyceryl-2 isostearate, polyglyceryl-2 diisostearate, polyglyceryl-5 dioleate, polyglyceryl-6 dioleate, and polyglyceryl-5 trioleate.

[0026] Component (A) may be used alone or in combination of two or more components.

[0027] The content of component (A) is not particularly limited, but preferably at a lower limit of 0.001% by mass or more, more preferably at 0.005% by mass or more, even more preferably at 0.01% by mass or more, and particularly preferably at 0.05% by mass or more. Preferably at an upper limit of 10% by mass or less, more preferably at 5% by mass or less, even more preferably at 3% by mass or less, and particularly preferably at 2% by mass or less. Furthermore, the content of component (A) is preferably at 0.001 to 10% by mass, more preferably at 0.005 to 5% by mass, even more preferably at 0.01 to 3% by mass, and particularly preferably at 0.05 to 2% by mass. When the content of component (A) is above the lower limit, long-term stability is further ensured, and when it is below the upper limit, it is easier to achieve a viscosity with good usability and an even better feel.

[0028] (Component (B): Polyhydric alcohol with a valency of 3 or higher) Polyhydric alcohols are alcohols with a structure that has two or more hydroxyl groups in its skeleton. Alcohols also include sugar alcohols.

[0029] Examples of polyhydric alcohols with a valency of 3 or higher include glycerols such as glycerin, diglycerin, and polyglycerin; and sugar alcohols such as erythritol, xylitol, maltitol, mannitol, and sorbitol.

[0030] In particular, from the viewpoint of good viscosity for ease of use and a refreshing feel, component (B) preferably contains a 3- to 6-valent polyhydric alcohol, more preferably contains at least one selected from the group consisting of glycerin, diglycerin, sorbitol and mannitol, even more preferably contains at least one selected from the group consisting of glycerin, diglycerin and sorbitol, and even more preferably contains glycerin from the viewpoint of good viscosity for ease of use and a refreshing feel.

[0031] Component (B) is preferably a relatively low molecular weight structure from the viewpoint of the effects of the present invention, and specifically, it is preferable that its molecular weight is 200 or less (lower limit 50 or more). The molecular weight is a value that can be calculated by theoretical calculation, but if it cannot be derived by calculation, the weight-average molecular weight may be used.

[0032] Component (B) may be used alone or in combination of two or more components.

[0033] The content of component (B) is not particularly limited, but is preferably 1% by mass or more as a lower limit in the composition, and may be 5% by mass or more, or 10% by mass or more. It is preferably 50% by mass or less as an upper limit, and may be 25% by mass or less, or 20% by mass or less. Furthermore, the content of component (B) is preferably 1 to 50% by mass in the composition, and may be 5 to 25% by mass, or 10 to 20% by mass. When the content of component (B) is above the lower limit, long-term stability is further ensured, and when it is below the upper limit, it is easier to achieve a viscosity that is easy to use, and the feel of use is also further improved.

[0034] (Component (C): Divalent polyhydric alcohol) Examples of divalent polyhydric alcohols include 1,3-butylene glycol, dipropylene glycol, tripylene glycol, propylene glycol, 1,2-pentanediol, octanediol, hexanediol, polyethylene glycol, and polypropylene glycol.

[0035] As for the divalent polyhydric alcohol, it is preferable that it has a relatively low molecular weight structure from the viewpoint of good viscosity for usability. Specifically, it is preferable that the molecular weight is 200 or less (lower limit 50 or more), and may also be 150 or less.

[0036] In particular, from the viewpoint of good viscosity for ease of use and a refreshing feel, it is preferable that component (C) contains at least one selected from the group consisting of 1,3-butylene glycol, dipropylene glycol, and propylene glycol.

[0037] Component (C) may be used alone or in combination of two or more components.

[0038] The content of component (C) is not particularly limited, but may be 0.5% by mass or more as a lower limit in the composition, preferably 1% by mass or more, and may be 3% by mass or more, or 4% by mass or more. Preferably, it may be 20% by mass or less as an upper limit, and may be 10% by mass or less, or 8% by mass or less. Furthermore, the content of component (C) may be 0.5 to 20% by mass in the composition, preferably 1 to 20% by mass, and may be 3 to 10% by mass, or 4 to 8% by mass. A content of component (C) above the lower limit ensures greater stability over time, while a content below the upper limit makes it easier to achieve a viscosity with good usability and provides a superior user experience.

[0039] Furthermore, the total amount of components (B) and (C) (amount of polyhydric alcohol) is preferably 2 to 70% by mass in the composition, but may also be 5 to 40% by mass or 10 to 25% by mass, from the viewpoint of forming an oil-type outer phase in the polyhydric alcohol.

[0040] The mass ratio of component (B) to component (C) (hereinafter also referred to as (B) / (C)) is preferably 0.5 or more at the lower limit, more preferably 1 or more, even more preferably 1.5 or more, and particularly preferably 2 or more. The upper limit is preferably 30 or less, more preferably 20 or less, even more preferably 15 or less, and particularly preferably 10 or less. Furthermore, (B) / (C) is preferably between 0.5 and 30, more preferably 1 and 20, and 1.5 and 15 It is even more preferable that it be between 2 and 10. When (B) / (C) is above the lower limit, good viscosity and stability over time are more easily ensured, and when it is below the lower limit, it is even better in terms of usability, such as a refreshing feel and good skin compatibility.

[0041] (D) Liquid oily component at 25°C In this specification, "oily component" refers to an oil-soluble compound that is insoluble (slightly soluble) in water, for example, a substance with a water solubility (10¹³.25 hPa, 25°C) of less than 2 g / 100 gH₂O. Furthermore, "liquid" means an oil that is fluid at 25°C, specifically, for example, a viscosity measured using a Brookfield rotational viscometer at 25°C that is preferably 10,000 mPa·s or less, more preferably 5,000 mPa·s or less, and even more preferably 2,000 mPa·s or less. The lower limit of viscosity is not particularly limited, but for example, it is 0.5 mPa·s or more.

[0042] Examples of oily components that are liquid at 25°C include various oils such as hydrocarbon oils, fats and oils, ester oils containing UV absorbers, fatty acids, higher alcohols, silicone oils, fluorinated oils, and lanolin derivatives, regardless of whether they are volatile or non-volatile, or of origin such as animal oils, vegetable oils, or synthetic oils; and oil-soluble active ingredients (for example, vitamin E and vitamin E derivatives such as its acetate).

[0043] Specifically, as a liquid oil at 25°C, it contains oils and fats such as olive oil, castor oil, mink oil, macadamia nut oil, avocado oil, meadowfoam oil, jojoba oil, diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, ethylene glycol di-2-ethylhexanoate, neopentyl glycol di-2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, tetra Pentaerythritol 2-ethylhexanoate, cetyl 2-ethylhexanoate, oleyl oleate, octyldodecyl oleate, decyl oleate, neopentyl glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, isocetyl stearate, butyl stearate, diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, dipentaerythritol Tall fatty acid esters, isononyl isononanoate, isotridecyl isononanoate, isopropyl myristate, isopropyl palmitate, 2-octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, 2-ethylhexyl methoxycinnamate, diisostearyl malate, glyceryl tri-2-ethylhexanoate (triethylhexanoin), glyceryl tri(caprylate / caprine), glyceryl tricaprate, triisostearin Esters such as glyceryl acid, glyceryl triisopalmitate, glyceryl trimyristicate, tridecyl trimellitate, 2-octyldodecyl N-lauroyl-L-glutamate, and di(phytostearyl-2-octyldodecyl) N-lauroyl-L-glutamate; hydrocarbon oils such as isododecane, isohexadecane, light liquid isoparaffin, liquid paraffin (mineral oil), heavy liquid isoparaffin, α-olefin oligomers, squalane, polyisobutylene, and polybutene; fatty acids such as isostearic acid and oleic acid;Higher alcohols such as oleyl alcohol, isostearyl alcohol, octyldodecanol, and decyltetradecanol; lanolin derivatives such as lanolin acetate, isopropyl lanolin fatty acid, and lanolin alcohol; dimethylpolysiloxane (dimethicone), high-molecular-weight dimethylpolysiloxane, methylphenylpolysiloxane (diphenyldimethicone), decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, and fluorine-modified organopolysulfites; Examples include silicone oils such as siloxanes; and fluorinated oils such as perfluorodecane, perfluorooctane, and perfluoropolyether.

[0044] Component (D) may be used alone or in combination of two or more components.

[0045] The content of component (D) is not particularly limited, but is preferably 40% by mass or more, more preferably 50% by mass or more, and even more preferably 60% by mass or more in the composition. It is preferably 90% by mass or less, and more preferably 80% by mass or less. Furthermore, the content of component (D) is preferably 40 to 90% by mass in the composition, more preferably between 50% by mass and 90% by mass or less, and even more preferably between 60 and 80% by mass. A content above the lower limit allows the effects of component (D) (e.g., cosmetic effects such as emollient sensation) to be easily exhibited, and a content below the upper limit ensures the stability of the formulation.

[0046] (Component (E): Compound represented by structural formula (I)) Component (E) is polyoxyethylene alkyl ether phosphate and / or its salts. Specifically, it is the compound represented by the following structural formula (I), its salts, and mixtures thereof.

[0047] [ka]

[0048] In equation (I), x, y, and z are non-negative numbers. In this case, x+y+z is between 3 and 20. x+y+z may also be between 4 and 20. x+y+z may also be between 8 and 20, or between 8 and 16. Furthermore, each x, y, and z is preferably 8 or less, and may also be 6 or less. In addition, each x, y, and z is preferably 1 or greater, and may also be 2 or greater.

[0049] Each of R1 to R3 is independently either a hydrogen atom or an alkyl group having 12 to 18 carbon atoms. While at least one of R1 to R3 is an alkyl group having 12 to 18 carbon atoms, it is preferable that two or all three of R1 to R3 are alkyl groups having 12 to 18 carbon atoms. Furthermore, when x, y, and z are not 0, it is preferable that R1 to R3 bonded to the ethylene oxide chain are alkyl groups.

[0050] Component (E) specifically includes, for example, polyoxyethylene lauryl ether phosphate (e.g., trilaureth-4 phosphate (x+y+z=12)), polyoxyethylene myristyl ether phosphate, polyoxyethylene cetyl ether phosphate (e.g., triceteareth-4 phosphate (x+y+z=12)), polyoxyethylene stearyl ether phosphate, polyoxyethylene alkyl (10-15) ether phosphate, polyoxyethylene dialkyl (12-15) ether phosphate (e.g., di(C12~15)pareth-8 phosphate (x+y+z=16)), polyoxyethylene tricetyl ether phosphate, polyoxyethylene tristearyl ether phosphate, and salts thereof.

[0051] Examples of salts include alkali metal salts such as sodium and potassium, basic amino acid salts such as L-arginine, L-histidine, and L-lysine, and alkanols such as triethanolamine. Examples include salts, etc.

[0052] Among these, from the viewpoint of long-term stability, it is preferable to use at least one selected from the group consisting of polyoxyethylene lauryl ether phosphate (salt), polyoxyethylene cetyl ether phosphate (salt), and polyoxyethylene dialkyl (12-15) ether phosphate (salt). For example, polyoxyethylene lauryl ether phosphate (salt) refers to polyoxyethylene lauryl ether phosphate and / or its salts.

[0053] Component (E) may be used alone or in combination of two or more components.

[0054] The content of component (E) is not particularly limited, but is preferably 0.005% by mass or more, more preferably 0.01% by mass or more, and even more preferably 0.02% by mass or more, as a lower limit in the composition. As an upper limit, it is preferably 5% by mass or less, more preferably 2% by mass or less, even more preferably 1.5% by mass or less, and particularly preferably 1.0% by mass or less. Furthermore, the content of component (E) is preferably 0.005 to 5% by mass, more preferably 0.01 to 2% by mass, even more preferably 0.02 to 1.5% by mass, and particularly preferably 0.02 to 1.0% by mass, as a lower limit or higher in the composition tends to result in a viscosity that is easy to use, and is also easily achieved in terms of viscosity that is easy to use, resulting in an even greater effect in terms of usability.

[0055] (Ingredient (F): Nonionic surfactant with HLB 4.5-12.0) Component (F) is a nonionic surfactant with an HLB of 4.5 to 12.0.

[0056] Here, HLB (Hydrophile-Lipophile Balance) in this invention is an index that indicates the balance between hydrophilicity and lipophilicity, and is calculated, for example, by Oda, Teramura et al. using the following formula (Equation 1). HLB = "Inorganic value (IV) / Organic value (OV)" × 10 ... (Equation 1) (See Yoshio Koda, "Organic Concept Diagrams - Fundamentals and Applications," pp. 11-17, Sankyo Publishing, 1984).

[0057] Here, a nonionic surfactant with an HLB of 4.5 to 12.0 means that, when the composition contains two or more nonionic surfactants, it is preferable that at least one nonionic surfactant has an HLB of 4.5 to 12.0, and all nonionic surfactants have an HLB of 4.5 to 12.0.

[0058] Component (F) is more preferably a nonionic surfactant with an HLB of 6.0 to 10.0, and even more preferably a nonionic surfactant with an HLB of 6.0 to 7.0, from the viewpoint of long-term stability, etc.

[0059] The nonionic surfactant of component (F) includes polyoxyethylene alkyl ether, polyoxypropylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene cholesteryl ether, polyoxyethylene cholestanol ether, polyoxyethylene phytosterol ether, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid ester, glycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, ethylene oxide derivatives of propylene glycol fatty acid ester, polyglycerin fatty acid ester other than component (A), and ethylene oxide derivatives of polyglycerin fatty acid ester (for example, polyo Examples include oxyethylene glyceryl monooleate, polyoxyethylene glyceryl monoisostearate, polyethylene glycol fatty acid esters, sucrose fatty acid esters, alkyl polyglucosides, polyoxyethylene fatty acid alkanolamides, fatty acid alkanolamides, polyoxyalkylene-modified organopolysiloxanes, and alkyl-containing polyoxyalkylene-modified organopolysiloxanes.

[0060] Among these, component (F) is preferably at least one selected from the group consisting of polyoxyethylene alkyl ether, polyoxypropylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene phytosterol ether, polyoxyethylene cholesterol ether, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil, and polyoxyethylene glycerin fatty acid ester, polyethylene glycol fatty acid ester. More preferably, component (F) is at least one selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene phytosterol ether, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene glycerin fatty acid ester, and polyethylene glycol fatty acid ester. From the viewpoint of long-term stability, polyoxyethylene phytosterol ether and / or polyoxyethylene hydrogenated castor oil are even more preferred.

[0061] Examples of polyoxyethylene alkyl ethers include polyoxyethylene cetyl ethers (e.g., ceteth-2, ceteth-5, ceteth-7), polyoxyethylene stearyl ethers (e.g., steareth-2, steareth-5, steareth-7), and polyoxyethylene behenyl ethers (e.g., beheneth-5, beheneth-10, beheneth-20).

[0062] Examples of polyoxyethylene polyoxypropylene alkyl ethers include polyoxyethylene polyoxypropylene lauryl ether, polyoxyethylene polyoxypropylene cetyl ether (e.g., PPG-4 ceteth-1), and polyoxyethylene polyoxypropylene decyltetradecyl ether.

[0063] Polyoxyethylene phytosterol ethers and polyoxyethylene cholesteryl ethers refer to compounds in which phytosterols and cholesterol, respectively, are ether-bonded to polyoxyethylene. More specifically, examples of polyoxyethylene phytosterol ethers include PEG-5 phytosterol and PEG-10 phytosterol, while examples of polyoxyethylene cholesteryl ethers include POE(5) cholesteryl ether (Choleth-5), POE(10) cholesteryl ether (Choleth-10), POE(15) cholesteryl ether (Choleth-15), and POE(20) cholesteryl ether (Choleth-20).

[0064] Examples of sorbitan fatty acid esters include sorbitan caprate, sorbitan laurate, sorbitan palmitate, sorbitan stearate, sorbitan distearate, sorbitan sesquistearate, sorbitan tristearate, sorbitan trioleate, sorbitan monoisostearate, sorbitan sesquiisostearate, sorbitan monooleate, sorbitan sesquioleate, and sorbitan coconut oil fatty acid.

[0065] Examples of polyoxyethylene sorbitan fatty acid esters include polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan oleate, and Examples include polyoxyethylene sorbitan oleate.

[0066] Examples of polyoxyethylene hydrogenated castor oil include PEG-10 hydrogenated castor oil and PEG-20 hydrogenated castor oil.

[0067] Examples of polyoxyethylene glycerol fatty acid esters include polyoxyethylene coconut oil fatty acid glyceryl, polyoxyethylene glyceryl monostearate, polyoxyethylene glyceryl monoisostearate, polyoxyethylene glyceryl diisostearate, and polyoxyethylene glyceryl triisostearate.

[0068] Examples of polyethylene glycol fatty acid esters include polyethylene glycol monolaurate, polyethylene glycol monopalmitate, polyethylene glycol monostearate, polyethylene glycol monoisostearate, polyethylene glycol distearate, polyethylene glycol monooleate, and polyethylene glycol dioleate.

[0069] Component (F) may be used alone or in combination of two or more components.

[0070] If components (A) and (E) are nonionic surfactants with an HLB of 4.5 to 12.0, they are not included in component (F).

[0071] The content of component (F) is not particularly limited, but is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, even more preferably 0.01% by mass or more, and even more preferably 0.02% by mass or more. The upper limit is preferably 10% by mass or less, more preferably 5% by mass or less, even more preferably 2% by mass or less, and even more preferably 1.5% by mass or less. It is preferably 0.001 to 10% by mass, more preferably 0.005 to 5% by mass, even more preferably 0.01 to 2% by mass, and even more preferably 0.02 to 1.5% by mass. Above the lower limit, the stability over time is further improved, and below the upper limit, the usability and feel are further improved.

[0072] (water) The present invention is substantially water-free. Here, "substantially water-free" means that the presence of water in the form of impurities is acceptable. Specifically, the water content in the composition is 2.0% by mass or less (lower limit 0% by mass), preferably 1.0% by mass or less, and may be 0.5% by mass or less, or 0.1% by mass or less.

[0073] (optional ingredient) The topical skin composition of the present invention may contain, as needed, any optional components commonly found in topical skin preparations, quasi-drugs, cosmetics, etc., to the extent that they do not impede the effects of the present invention, such as active ingredients, solid or semi-solid oils, water-soluble polymers, powder components, UV absorbers, metal ion chelating agents, lower alcohols, neutralizing agents, organic amines, pH adjusters, antioxidants, antioxidant aids, preservatives, fragrances, etc.

[0074] (Manufacturing method) The method for producing the topical skin composition of the present invention is not particularly limited and can be prepared by conventional methods. For example, it can be produced by the following steps. Step 1: Heat and uniformly mix ingredients (A), (B), (C), (E), and (F). Step 2: Heat ingredient (D) and mix it uniformly. Step 3: Gradually add the mixture obtained in Step 2 to the liquid obtained in Step 1 while maintaining the heating temperature, and emulsify it uniformly. Step 4: The emulsion obtained in Step 3 is cooled while being uniformly stirred, and then filled into a container to obtain a topical skin composition.

[0075] (Application) The present invention relates to a composition for use on the skin. Here, "for use on the skin" means a composition applied to the skin. The topical skin composition can be used as a pharmacopoeia, quasi-drug, or cosmetic. In terms of the effects of the present invention (particularly the feeling of use, such as a refreshing feel and good absorption into the skin), the topical skin composition is preferably a so-called leave-on type that is not washed off after application. Specifically, examples include lotions, creams, serums, massage products, packs, hand creams, body creams, sunscreens, etc. Methods of using the topical skin composition include, for example, application with the hands, fingers, or cotton.

[0076] The topical skin composition of the present invention has a viscosity that is easy to use. The viscosity of the topical skin composition of the present invention at 20°C is preferably 15,000 mPa·s or more and less than 40,000 mPa·s, and more preferably 25,000 mPa·s or more and less than 35,000 mPa·s. The viscosity measurement method is not particularly limited and can be measured by known methods, for example, it can be measured using a Brookfield type rotational viscometer in accordance with the second method of viscosity measurement of cosmetic raw materials standards.

[0077] The topical skin composition of the present invention is preferably of the polyhydric alcohol-in-oil type. The polyhydric alcohol-in-oil type refers to a form in which the outer phase is a polyhydric alcohol and the inner phase is an oil-based component.

[0078] Furthermore, the present invention may also employ the following configuration.

[0079] <1> The following components (A) to (F); (A) Polyglycerol fatty acid esters in which the R-COO- group derived from fatty acids has one or more alkyl groups with 13 to 23 carbon atoms or alkenyl groups with 13 to 23 carbon atoms. (B) Polyhydric alcohols with a valency of 3 or higher (C) Divalent polyhydric alcohol (D) Liquid oily component at 25°C (E) Compounds represented by the following formula (I), their salts, and mixtures thereof

[0080] [ka]

[0081] (In formula (I), x, y, and z are numbers greater than or equal to 0, x + y + z is between 3 and 20, R1 to R3 are each independently a hydrogen atom or an alkyl group having 12 to 18 carbon atoms, and at least one of R1 to R3 is an alkyl group having 12 to 18 carbon atoms.) (F) Nonionic surfactants other than component (A) and component (E) with an HLB of 4.5 to 12.0 A topical skin composition containing, and substantially free of, water.

[0082] <2> The degree of polymerization of glycerin in component (A) is 2 or more and 10 or less. <1> The topical skin composition described above.

[0083] <3> The aforementioned component (B) contains a polyhydric alcohol that is trivalent or greater and hexavalent or less. <1> or <2> The topical skin composition described above.

[0084] <4> The mass ratio (B) / (C) of component (B) to component (C) is 1 or more and 20 or less. <1> ~ <3> A topical skin composition as described in any of the following.

[0085] <5> It is a polyhydric alcohol-based oil-type composition, <1> ~ <4> A topical skin composition as described in any of the following.

[0086] <6> It is a leave-on cosmetic product. <1> ~ <5> A topical skin composition as described in any of the following. [Examples]

[0087] The effects of the present invention will be explained using the following examples and comparative examples. In the examples, the notation "%" may be used, but unless otherwise specified, it represents "mass%". Also, unless otherwise specified, each operation is carried out at room temperature (25°C).

[0088] <Examples 1-26 and Comparative Examples 1-10: Topical Compositions for Skin> Skin-applied external compositions with the compositions shown in Tables 1-3 were prepared by the following manufacturing method, and evaluated for each of the following items: (a) viscosity for good usability, (b) stability over time, (c) refreshing feel, and (d) skin compatibility. The results are shown in Tables 1-3.

[0089] (Manufacturing method) A: Components (1) to (13) and (16) to (25) were heated to 80°C and mixed uniformly. B: Components (14) to (15) were heated to 80°C and mixed uniformly. C: B was gradually added to A while maintaining a temperature of 80°C and emulsified uniformly. After cooling D:C to 25°C, it was filled into a container to obtain a topical skin composition.

[0090] (Evaluation method 1: (a) Viscosity with good usability) Each topical skin composition was placed in a standard glass bottle and stored undisturbed in a constant temperature room at 20°C for 24 hours. The viscosity was then measured using a Brookfield-type rotational viscometer, and the resulting viscosity values ​​were evaluated according to the following criteria. [Judgment criteria] 25,000 mPa·s or more and less than 35,000 mPa·s: ◎ 15,000 mPa·s or more but less than 25,000 mPa·s, or 35,000 mPa·s or more but less than 40,000 mPa·s: ○ 8000 mPa·s or more but less than 15000 mPa·s, or 40000 mPa·s or more but less than 50000 mPa·s: △ Less than 8000 mPa·s, or 50000 mPa·s or more: ×

[0091] (Evaluation method 2: (b) Stability over time) Each topical skin composition was placed in a standard glass bottle and stored at a constant temperature of 40°C for one month. After one month, its appearance was evaluated for the presence or absence of gelation and separation, and judged according to the following criteria. [Judgment criteria] (Evaluation result): (Judgment) Neither gelation nor separation was observed: ◎ Gelation and / or separation were observed, but were minor: ○ Unacceptable gelation and / or separation was observed: △ Significant gelation or separation was observed: ×

[0092] (Evaluation method 3: (c) Refreshing feel) A panel of 20 cosmetic product evaluation specialists took approximately 1g of each topical skin composition in their hands after washing their face, applied half of it to each cheek, and massaged it in a circular motion for about 60 seconds. They evaluated the freshness during use on a 5-point scale according to the evaluation criteria (I) shown below, and then judged the average score of all panel members according to the judgment criteria (II) shown below.

[0093] [Evaluation Criteria (I)] (Evaluation result): (Score) Very juicy: 5 points Fresh and juicy: 4 points Neither agree nor disagree: 3 points Slightly lacking in freshness: 2 points Not fresh: 1 point [Evaluation Criteria (II)] (Average score): (Judgment) 4.5 points or higher: ◎ 3.5 points or higher but less than 4.5 points: ○ 1.5 points or higher but less than 3.5 points: △ Less than 1.5 points: ×

[0094] (Evaluation method 4: (d) How well it blends with the skin) A panel of 20 cosmetic product evaluation specialists took approximately 1g of each topical skin composition in their hands after washing their faces, applied half of it to each cheek, and massaged it in a circular motion for about 60 seconds. They evaluated how well the product absorbed into the skin on a 5-point scale according to the evaluation criteria (I) shown below, and then judged the average score of all the panel members according to the judgment criteria (II) shown below.

[0095] [Evaluation Criteria (I)] (Evaluation result): (Score) Very good on the skin: 5 points Good blendability: 4 points Neither agree nor disagree: 3 points Slightly poor blendability: 2 points Does not blend well with skin: 1 point [Evaluation Criteria (II)] (Average score): (Judgment) 4.5 points or higher: ◎ 3.5 points or higher but less than 4.5 points: ○ 1.5 points or higher but less than 3.5 points: △ Less than 1.5 points: × The results are shown in the table below.

[0096] [Table 1]

[0097] [Table 2]

[0098] [Table 3]

[0099] *1: Cosmoll 42V (manufactured by Nisshin Oillio Co., Ltd.) *2: Sunsoft Q-102H-C (manufactured by Taiyo Kagaku Co., Ltd.) *3: Cosmoll 41V (manufactured by Nisshin Oillio Co., Ltd.) *4: Sunsoft A-173E-C (manufactured by Taiyo Kagaku Co., Ltd.) *5: Sunsoft Q-12D-C (manufactured by Taiyo Kagaku Co., Ltd.) *6: Sunsoft No. 818R-C (manufactured by Taiyo Kagaku Co., Ltd.) *7: ISOLAN PDI (manufactured by EVONIK) *8: HOSTAPHAT KW340D (manufactured by CLARIANT) *9: HOSTAPHAT KL340D (manufactured by CLARIANT) *10: Nikkor DDP-8 (manufactured by Nikko Chemicals Co., Ltd.) *11: Nikkor HCO-10 (manufactured by Nippon Surfactant Industry Co., Ltd.) *12: EMALEX PS-5 (manufactured by Nippon Emulsion Co., Ltd.) *13: Leodor AS-10V (manufactured by Kao Corporation) *14: M Fine Oil ISG-20T (manufactured by Miyoshi Oil Co., Ltd.) *15: EMALEX BHA-20 (manufactured by Nippon Emulsion Co., Ltd.) *16: Poem V-100 (manufactured by Riken Vitamin Co., Ltd.) *17: EMALEX PS-30 (manufactured by Nippon Emulsion Co., Ltd.) As can be seen from the table above, the topical skin compositions of Examples 1 to 26 had a viscosity that was easy to use while also exhibiting excellent stability over time. They also had excellent usability, such as a refreshing feel and good skin absorption. On the other hand, the topical skin compositions of Comparative Examples 1 to 3 (without component A), Comparative Example 5 (without component B), Comparative Example 6 (without component E), and Comparative Examples 7 to 10 (without component F) fell outside the range of viscosity that was easy to use and exhibited poor stability over time. The topical skin composition of Comparative Example 4 (without component C) did not yield an emulsion. Therefore, viscosity and stability over time were not evaluated.

[0100] Example 27: Composition for topical application to the skin (Ingredients) (%) 1. Polyglyceryl-2 Diisostearate (Component (A)) 1.0 2. Glycerin (Component (B)) 10.0 3. Diglycerin (Component (B)) 7.5 4.1,3-Butylene glycol (component (C)) 2.5 5. Dipropylene glycol (Component (C)) 2.0 6. Triethylhexanoin (Ingredient (D)) Remaining amount 7. Di(C12-15)pareth-8 phosphate (component (E)) 0.05 8. PEG-10 Hydrogenated Castor Oil (Component (F)) 0.5 (Manufacturing method) Step 1: Components 1-5 and 7-8 were heated to 80°C and mixed uniformly. Step 2: Component 6 was heated to 80°C. Step 3: The liquid obtained in Step 1 was gradually added to the liquid obtained in Step 2 while maintaining a temperature of 80°C, and then uniformly emulsified. Step 4: The liquid obtained in Step 3 was cooled to 25°C while being uniformly stirred, and then filled into a container to obtain a topical skin composition.

[0101] (result) The topical skin composition of Example 27 had a viscosity that was easy to use, while also exhibiting excellent stability over time. Furthermore, it had excellent usability, including a refreshing feel and good absorption into the skin.

[0102] Example 28: Composition for topical application to the skin (Ingredients) (%) 1. Polyglyceryl-2 isostearate (Component (A)) 0.7 2. Glycerin (Component (B)) 10.0 3. Diglycerin (Component (B)) 7.5 4.1,3-Butylene glycol (component (C)) 2.5 5. Dipropylene glycol (Component (C)) 2.0 6. Triethylhexanoin (Component (D)) 36.0 7. Mineral oil (ingredient (D)) remaining amount 8. Triceteareth-4 Phosphate (Component (E)) 0.05 9. PEG-10 Hydrogenated Castor Oil (Component (F)) 0.5

[0103] (Manufacturing method) Step 1: Components 1-5 and 8-9 were heated to 80°C and mixed uniformly. Step 2: Components 6-7 were heated to 80°C and mixed uniformly. Step 3: The liquid obtained in Step 1 was gradually added to the liquid obtained in Step 2 while maintaining a temperature of 80°C, and then uniformly emulsified. Step 4: The liquid obtained in Step 3 was cooled to 25°C while being uniformly stirred, and then filled into a container to obtain a topical skin composition.

[0104] (result) The topical skin composition of Example 28 had a viscosity that was easy to use, while also exhibiting excellent stability over time. Furthermore, it had a refreshing feel and good absorption into the skin, demonstrating excellent usability.

[0105] Example 29: Composition for topical application to the skin (Ingredients) (%) 1. Polyglyceryl-5 dioleate (Component (A)) 0.5 2. Glycerin (Component (B)) 10.0 3. Diglycerin (Component (B)) 7.5 4.1,3-Butylene glycol (component (C)) 2.5 5. Dipropylene glycol (Component (C)) 2.0 6. Triethylhexanoin (Component (D)) 31.0 7. Mineral oil (ingredient (D)) remaining amount 8. Dimethicone (100 mPa·s) (Ingredient (D)) 5.0 9. Triceteareth-4 Phosphate (Component (E)) 0.05 10. PEG-10 Hydrogenated Castor Oil (Component (F)) 0.4 11.Fragrance composition 0.05

[0106] (Manufacturing method) Step 1: Components 1-5 and 9-10 were heated to 80°C and mixed uniformly. Step 2: Components 6-8 were heated to 80°C and mixed uniformly. Step 3: The liquid obtained in Step 1 was gradually added to the liquid obtained in Step 2 while maintaining a temperature of 80°C, and then uniformly emulsified. Step 4: Component 11 was added to the liquid obtained in Step 3, and the mixture was cooled to 25°C while being uniformly stirred, and then filled into containers to obtain a topical skin composition.

[0107] (result) The topical skin composition of Example 29 had a viscosity that was easy to use, while also exhibiting excellent stability over time. Furthermore, it had excellent usability, including a refreshing feel and good absorption into the skin.

[0108] Example 30: Composition for topical application to the skin (Ingredients) (%) 1. Polyglyceryl-2 Diisostearate (Ingredient (A)) 1.0 2. Glycerin (Component (B)) 10.0 3. Diglycerin (Component (B)) 7.5 4.1,3-Butylene glycol (component (C)) 2.5 5. Dipropylene glycol (Component (C)) 2.0 6. Triethylhexanoin (Component (D)) 31.0 7. Mineral oil (ingredient (D)) remaining amount 8. Dimethicone (100 mPa·s) (Ingredient (D)) 5.0 9. Phytosteryl oleate 5.0 10. Trilaureth-4 Phosphate (Component (E)) 0.05 11. PEG-10 Hydrogenated Castor Oil (Component (F)) 0.5

[0109] (Manufacturing method) Step 1: Components 1-5 and 10-11 were heated to 80°C and mixed uniformly. Step 2: Components 6-9 were heated to 80°C and mixed uniformly. Step 3: The liquid obtained in Step 1 was gradually added to the liquid obtained in Step 2 while maintaining a temperature of 80°C, and then uniformly emulsified. Step 4: The liquid obtained in Step 3 was cooled to 25°C while being uniformly stirred, and then filled into a container to obtain a topical skin composition.

[0110] (result) The topical skin composition of Example 30 had a viscosity that was easy to use, while also exhibiting excellent stability over time. Furthermore, it had a refreshing feel and good skin compatibility, demonstrating excellent usability.

[0111] Example 31: Composition for topical application to the skin (Ingredients) (%) 1. Polyglyceryl-5 trioleate (Component (A)) 0.4 2. Glycerin (Component (B)) 10.0 3. Mannitol (Component (B)) 7.5 4.1,3-Butylene glycol (component (C)) 2.5 5. Dipropylene glycol (Component (C)) 2.0 6. Isotridecyl isononanoate (ingredient (D)) Remaining amount 7. Mineral oil (Ingredient (D)) 30.458. Dimethicone (10 mPa·s) (Ingredient (D)) 5.0 9. Phytosteryl oleate 5.0 10. Vaseline 5.0 11. Triceteareth-4 Phosphate (Component (E)) 0.1 12. PEG-10 Hydrogenated Castor Oil (Component (F)) 0.5

[0112] (Manufacturing method) Step 1: Components 1-5 and 11-12 were heated to 80°C and mixed uniformly. Step 2: Components 6-10 were heated to 80°C and mixed uniformly. Step 3: The liquid obtained in Step 1 was gradually added to the liquid obtained in Step 2 while maintaining a temperature of 80°C, and then uniformly emulsified. Step 4: The liquid obtained in Step 3 was cooled to 25°C while being uniformly stirred, and then filled into a container to obtain a topical skin composition.

[0113] (result) The topical skin composition of Example 31 had a viscosity that was easy to use, while also exhibiting excellent stability over time. Furthermore, it had excellent usability, including a refreshing feel and good absorption into the skin. That was the case.

[0114] Example 32: Composition for topical application to the skin (Ingredients) (%) 1. Polyglyceryl-2 Diisostearate (Component (A)) 0.5 2. Polyglyceryl-10 Tristearate (Component (A)) 0.5 3. Glycerin (Component (B)) 10.0 4. Diglycerin (Component (B)) 7.5 5.1,3-Butylene glycol (component (C)) 2.5 6. Dipropylene glycol (Component (C)) 2.0 7. Olive oil (Component (D)) Remaining amount 8. Mineral oil (ingredient (D)) 30.4 9. Dimethicone (6 mPa·s) (Ingredient (D)) 5.0 10. Phytosteryl oleate 5.0 11. Vaseline 5.0 12. Triceteareth-4 Phosphate (Component (E)) 0.05 13. PEG-10 Hydrogenated Castor Oil (Component (F)) 0.5 14.Fragrance composition 0.05 *Polyglyceryl-10 Tristearate: EMALEX TSG-10 (manufactured by Nippon Emulsion Co., Ltd., HLB 8.0)

[0115] (Manufacturing method) Step 1: Components 1-6 and 12-13 were heated to 80°C and mixed uniformly. Step 2: Components 7-11 were heated to 80°C and mixed uniformly. Step 3: The liquid obtained in Step 1 was gradually added to the liquid obtained in Step 2 while maintaining a temperature of 80°C, and then uniformly emulsified. Step 4: Component 14 was added to the liquid obtained in Step 3, and the mixture was cooled to 25°C while being uniformly stirred, and then filled into containers to obtain a topical skin composition.

[0116] (result) The topical skin composition of Example 32 had a viscosity that was easy to use, while also exhibiting excellent stability over time. Furthermore, it had a refreshing feel and good absorption into the skin, demonstrating excellent usability.

[0117] Example 33: Composition for topical application to the skin (Ingredients) (%) 1. Polyglyceryl-2 Diisostearate (Component (A)) 0.5 2. Polyglyceryl-10 Tristearate (Component (A)) 0.5 3. Glycerin (Component (B)) 10.0 4. Sorbitol (Ingredient (B)) 7.5 5.1,3-Butylene glycol (component (C)) 2.5 6. Dipropylene glycol (Component (C)) 2.0 7. Triethylhexanoin (Ingredient (D)) Remaining amount 8. Mineral oil (Ingredient (D)) 30.459. Dimethicone (100 mPa·s) (Ingredient (D)) 5.0 10. Phytosteryl oleate 5.0 11. Vaseline 5.0 12. Triceteareth-4 phosphate (Component (E)) 0.05 13. PPG-4 ceteth-1 (Component (F)) 0.5 *PPG-4 Ceteth-1: NIKKOL PBC-31 (manufactured by Nikko Chemicals Co., Ltd., HL) B 9.5)

[0118] (Manufacturing method) Step 1: Components 1-6 and 12-13 were heated to 80°C and mixed uniformly. Step 2: Components 7-11 were heated to 80°C and mixed uniformly. Step 3: The liquid obtained in Step 1 was gradually added to the liquid obtained in Step 2 while maintaining a temperature of 80°C, and then uniformly emulsified. Step 4: The liquid obtained in Step 3 was cooled to 25°C while being uniformly stirred, and then filled into a container to obtain a topical skin composition.

[0119] (result) The topical skin composition of Example 33 had a viscosity that was easy to use, while also exhibiting excellent stability over time. Furthermore, it had a refreshing feel and good absorption into the skin, demonstrating excellent usability.

[0120] Example 34: Composition for topical application to the skin (Ingredients) (%) 1. Polyglyceryl-2 Diisostearate (Component (A)) 0.5 2. Polyglyceryl-10 Tristearate (Component (A)) 0.5 3. Glycerin (Component (B)) 10.0 4. Diglycerin (Component (B)) 7.5 5.1,3-Butylene glycol (component (C)) 2.5 6. Dipropylene glycol (Component (C)) 2.0 7. Triethylhexanoin (Component (D)) 31.0 8. Mineral oil (ingredient (D)) remaining amount 9. Dimethicone (100 mPa·s) (Ingredient (D)) 5.0 10. Phytosteryl oleate 5.0 11. Vaseline 5.0 12. Triceteareth-4 Phosphate (Component (E)) 0.05 13. PEG-4 Laurate (Component (F)) 0.5 *PEG-4 Laurate: Nonionic L-2 (manufactured by NOF Corporation, HLB 10.0)

[0121] (Manufacturing method) Step 1: Components 1-6 and 12-13 were heated to 80°C and mixed uniformly. Step 2: Components 7-11 were heated to 80°C and mixed uniformly. Step 3: The liquid obtained in Step 1 was gradually added to the liquid obtained in Step 2 while maintaining a temperature of 80°C, and then uniformly emulsified. Step 4: The liquid obtained in Step 3 was cooled to 25°C while being uniformly stirred, and then filled into a container to obtain a topical skin composition.

[0122] (result) The topical skin composition of Example 34 had a viscosity that was easy to use, while also exhibiting excellent stability over time. Furthermore, it had a refreshing feel and good absorption into the skin, demonstrating excellent usability.

[0123] Example 35: Composition for topical application to the skin (Ingredients) (%) 1. Polyglyceryl-2 Diisostearate (Component (A)) 0.5 2. Polyglyceryl-10 Tristearate (Component (A)) 0.5 3. Glycerin (Component (B)) 10.0 4. Diglycerin (Component (B)) 7.5 5.1,3-Butylene glycol (component (C)) 2.5 6. Dipropylene glycol (Component (C)) 2.0 7. Triethylhexanoin (Ingredient (D)) Remaining amount 8. Mineral oil (ingredient (D)) 30.4 9. Dimethicone (100 mPa·s) (Ingredient (D)) 5.0 10. Macadamia nut fatty acid phytosteryl 5.0 11. Vaseline 5.0 12. Triceteareth-4 Phosphate (Component (E)) 0.05 13. Polyoxyethylene sorbitan tristearate (20 E.O.) (Component (F)) 0.5 14.Fragrance composition 0.05 *Polyoxyethylene sorbitan tristearate (20E.O.) (Polysorbate 65): NIKKOL TS-30V (manufactured by Nikko Chemicals Co., Ltd., HLB 10.5)

[0124] (Manufacturing method) Step 1: Components 1-6 and 12-13 were heated to 80°C and mixed uniformly. Step 2: Components 7-11 were heated to 80°C and mixed uniformly. Step 3: The liquid obtained in Step 1 was gradually added to the liquid obtained in Step 2 while maintaining a temperature of 80°C, and then uniformly emulsified. Step 4: Component 14 was added to the liquid obtained in Step 3, and the mixture was cooled to 25°C while being uniformly stirred, and then filled into containers to obtain a topical skin composition.

[0125] (result) The topical skin composition of Example 35 had a viscosity that was easy to use, while also exhibiting excellent stability over time. Furthermore, it had a refreshing feel and good absorption into the skin, demonstrating excellent usability.

[0126] Example 36: Composition for topical application to the skin (Ingredients) (%) 1. Polyglyceryl-2 Diisostearate (Ingredient (A)) 1.0 2. Polyglyceryl-10 Tristearate (Component (A)) 1.0 3. Glycerin (Component (B)) 10.0 4. Mannitol (Component (B)) 7.5 5.1,3-Butylene glycol (component (C)) 2.5 6. Dipropylene glycol (Component (C)) 2.0 7. Triethylhexanoin (Ingredient (D)) Remaining amount 8. Squalane (Ingredient (D)) 30.0 9. Dimethicone (100 mPa·s) (Ingredient (D)) 5.0 10. Phytosteryl isostearate 5.0 11. Vaseline 5.0 12. Triceteareth-4 phosphate (Component (E)) 0.02 13. PPG-4 ceteth-1 (Component (F)) 0.02

[0127] (Manufacturing method) Step 1: Components 1-6 and 12-13 were heated to 80°C and mixed uniformly. Step 2: Components 7-11 were heated to 80°C and mixed uniformly. Step 3: The liquid obtained in Step 1 was gradually added to the liquid obtained in Step 2 while maintaining a temperature of 80°C, and then uniformly emulsified. Step 4: Cool the liquid obtained in Step 3 to 25°C while stirring uniformly, and then fill it into containers. This resulted in obtaining a topical skin composition.

[0128] (result) The topical skin composition of Example 36 had a viscosity that was easy to use, while also exhibiting excellent stability over time. Furthermore, it had excellent usability, including a refreshing feel and good absorption into the skin.

[0129] Example 37: Composition for topical application to the skin (Ingredients) (%) 1. Polyglyceryl-2 Diisostearate (Ingredient (A)) 0.025 2. Polyglyceryl-10 Tristearate (Ingredient (A)) 0.025 3. Glycerin (Ingredient (B)) 10.0 4. Diglycerin (Component (B)) 7.5 5.1,3-Butylene glycol (component (C)) 2.5 6. Dipropylene glycol (Component (C)) 2.0 7. Glyceryl tri(caprylate / caprine) (Ingredient (D)) Remaining amount 8. Mineral oil (ingredient (D)) 30.0 9. Dimethicone (100 mPa·s) (Ingredient (D)) 5.0 10. Phytosteryl oleate 5.0 11. Vaseline 5.0 12. Triceteareth-4 Phosphate (Component (E)) 1.0 13. PEG-4 Laurate (Component (F)) 1.5

[0130] (Manufacturing method) Step 1: Components 1-6 and 12-13 were heated to 80°C and mixed uniformly. Step 2: Components 7-11 were heated to 80°C and mixed uniformly. Step 3: The liquid obtained in Step 1 was gradually added to the liquid obtained in Step 2 while maintaining a temperature of 80°C, and then uniformly emulsified. Step 4: The liquid obtained in Step 3 was cooled to 25°C while being uniformly stirred, and then filled into a container to obtain a topical skin composition.

[0131] (result) The topical skin composition of Example 37 had a viscosity that was easy to use, while also exhibiting excellent stability over time. Furthermore, it had excellent usability, including a refreshing feel and good absorption into the skin.

[0132] The fragrance compositions used in Examples 29, 32, and 35 of the present invention are shown in Table 4 below.

[0133] [Table 4]

Claims

1. The following components (A) to (F): (A) Polyglycerol fatty acid esters in which R in the fatty acid-derived group R-COO- is an alkyl group having 13 to 23 carbon atoms or an alkenyl group having 13 to 23 carbon atoms. (B) Polyhydric alcohols with a valency of 3 or higher (C) Divalent polyhydric alcohols (D) Oily component that is liquid at 25°C (E) Compounds represented by the following formula (I), salts thereof, and mixtures thereof 【Chemistry 1】 (In equation (I), x, y, and z are numbers greater than or equal to 0, and x + y + z = 3 or greater and 20 or less, R １ ~R ３ Each is independently a hydrogen atom or an alkyl group having 12 to 18 carbon atoms, and R １ ~R ３ (At least one of them is an alkyl group with 12 to 18 carbon atoms.) (F) Nonionic surfactants other than component (A) and component (E) with an HLB of 4.5 to 12.0 A topical skin composition containing, and substantially free of, water.

2. The topical skin composition according to claim 1, wherein the degree of polymerization of glycerin in component (A) is 2 or more and 10 or less.

3. The topical skin composition according to claim 1 or 2, wherein component (B) contains a polyhydric alcohol that is trivalent or greater and not trivalent or greater.

4. The topical skin composition according to claim 1 or 2, wherein the mass ratio (B) / (C) of component (B) to component (C) is 1 or more and 20 or less.

5. The topical skin composition according to claim 1 or 2, which is an oil-in-polyhydric alcohol composition.

6. A leave-on cosmetic composition for external use on the skin according to claim 1 or 2.

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