Water-in-oil emulsified cosmetic and method for producing the same

Abstract

To provide a water-in-oil emulsified cosmetic stably comprising an oil agent having an IOB value of 0.2 to 0.8 and being solid at 25°C, the cosmetic exhibiting superior feeling in use.SOLUTION: The present invention provides a water-in-oil emulsified cosmetic comprising the following components (A) to (D): (A) an oil agent having an IOB value of 0.2 to 0.8 and being solid at 25°C, (B) at least two oil agents being liquid at 25°C and having an HSP distance Ra of 7.0 or less from component (A), (C) a phospholipid, and (D) a polyhydric alcohol having an IOB value of 1.5 to 5.0 in an amount of 4 mass% or more and less than 35 mass%, wherein the component (B) comprises at least a hydrocarbon oil, and a ratio (C) / {(A)+(B)} of the content mass of the component (C) to the total content mass of the components (A) and (B) is 0.005 to 0.7.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an oil-in-water emulsion cosmetic and a method for producing the same. [Background technology]

[0002] Technologies related to cosmetics containing various solid oils stably blended as solid oil active ingredients for cosmetics or topical skin preparations, or to impart firmness and other benefits, have been disclosed. However, when solid oils are blended into oil-in-water emulsion cosmetics or aqueous cosmetics, precipitation of the solid oils and creaming of the emulsions are likely to occur, posing challenges in terms of stabilization. Furthermore, depending on the blending amount, the solid oils are likely to become sticky, posing challenges in terms of usability. In response to these challenges, technologies have been disclosed that stably blend glycyrrhetinic acid derivatives into emulsion compositions by combining fatty acid esters having 10 to 18 carbon atoms with water-soluble surfactants, etc. (see, for example, Patent Document 1); that stably blend solid oils such as cholesterol, phytosterols, and stearyl glycyrrhetinate into cosmetics by incorporating them into liposomes (see, for example, Patent Document 2); and that combine specific ester oils with alkyl-modified carboxyvinyl polymers to stably blend stearyl glycyrrhetinate to form emulsion compositions with excellent usability (see, for example, Patent Document 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-224290 [Patent Document 2] Japanese Patent Application Publication No. 2023-32103 [Patent Document 3] JP 2013-173728 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the technology relating to emulsion compositions in Patent Document 1 requires micronization by high-pressure emulsification, and does not address the aspects of stability over time and usability in emulsion compositions with average particle sizes on the order of μm, or the effect of the production method on usability. The technology relating to cosmetic compositions in Patent Document 2 is aimed at liposomes, and has the problem that it is not possible to blend a large amount of oily ingredients. The technology relating to the emulsion composition in Patent Document 3 is excellent in terms of feel when used, such as non-stickiness and firmness, but does not focus on the perspective of obtaining an emulsion composition with a better penetration feel or the influence of the production method on the feel when used. In particular, when solid oils with specific IOB values, such as stearyl glycyrrhetinate, cholesterol, and ceramide, are blended into oil-in-water emulsion compositions, the orientation of the solid oils at the emulsion interface tends to cause stability problems such as gelation, making stable blending even more difficult. The main objective of the present invention is to obtain an oil-in-water emulsion cosmetic that has an excellent feel when used by stably blending an oil that has an IOB value of 0.2 to 0.8 and is solid at 25°C into a liquid oil-in-water emulsion cosmetic. [Means for solving the problem]

[0005] As a result of extensive research, the present inventors have discovered that by preparing an oil-in-water emulsion cosmetic in which an oil is selected based on the Hansen Solubility Parameter (HSP) and emulsified, it is possible to obtain a cosmetic that is remarkably excellent in the stable blending of solid oils having a specific IOB value, and that has a good feel when used, such as being non-sticky and penetrating.

[0006] That is, the present invention is as described below. [1] The following components (A) to (D); (A) An oil solution with an IOB value of 0.2 to 0.8 that is solid at 25°C (B) At least two oils that are liquid at 25°C and have an HSP distance Ra of 7.0 or less from component (A). (C) Phospholipids (D) Polyhydric alcohol having an IOB value of 1.5 to 5.0: 4% by mass or more and less than 35% by mass wherein the component (B) contains at least a hydrocarbon oil, and the mass ratio (C) / {(A)+(B)} of the content of the component (C) to the total content mass of the components (A) and (B) is 0.005 to 0.7. [2] Further, the component (E) contains one or more selected from the following components (E1) and (E2): the component (E1) is one or more selected from the group consisting of polyglycerin and alkylene oxide derivatives, The component (E2) is one or more selected from the group consisting of cellulose-based water-soluble polysaccharides, alginates, and Tremella fuciformis polysaccharides. The present invention provides the oil-in-water emulsion cosmetic according to [1]. [3] The oil-in-water emulsion cosmetic according to [1] or [2], wherein the average particle size of the emulsion droplets is 1 to 15 μm. [4] The oil-in-water emulsion cosmetic according to [2], wherein the alkylene oxide derivative of component (E1) is one or more selected from the group consisting of polyoxyethylene glycerin, polyoxypropylene diglyceryl ether, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside, polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether, and polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether. [5] The oil-in-water emulsion cosmetic according to [1] or [2], wherein the component (B) contains an ester oil that is liquid at 25°C, and the HSP distance Ra between the ester oil and the component (A) is 5.0 or less. [6] The oil-in-water emulsion cosmetic according to [1] or [2], wherein the component (A) contains at least stearyl glycyrrhetinate. [7] The oil-in-water emulsion cosmetic according to [2] or [4], wherein the component (E1) contains polyglycerin and an alkylene oxide derivative. [8] The oil-in-water emulsion cosmetic according to [2], wherein the component (E) contains a component (E1) and a component (E2). [9] A method for producing an oil-in-water emulsion cosmetic, comprising: (1) a step of mixing and dissolving component (C) phospholipid in component (D) polyhydric alcohol having an IOB value of 1.5 to 5.0; a step (2) of preparing an intermediate composition by adding thereto at least two kinds of oils: component (A) an oil solution which has an IOB value of 0.2 to 0.8 and is solid at 25°C; and component (B) an oil solution which has an HSP distance Ra from said component (A) of 7.0 or less and is liquid at 25°C; and (3) adding water to the intermediate composition to emulsify it. Including, When the component (A) is cholesterol and / or phytosterol, the cholesterol and / or phytosterol is added in step (1), thereby providing a method for producing an oil-in-water emulsion cosmetic.

[10] The present invention provides a method for producing an oil-in-water emulsion cosmetic according to [9], wherein the component (B) contains at least a hydrocarbon oil. [Effects of the Invention]

[0007] The oil-in-water emulsion cosmetic of the present invention is capable of stably containing a solid oil agent having a specific IOB value, and therefore has excellent stability over time, and also has an excellent feel when used, such as a feeling of penetration and no stickiness. Furthermore, the oil-in-water emulsion cosmetic of the present invention is excellent in terms of smoothness when spread and plumpness of the skin after application. Note that the effects of the present technology are not limited to those described herein, and may be any of the effects described in this specification. DETAILED DESCRIPTION OF THE INVENTION

[0008] Preferred embodiments of the present invention will be described in detail. However, the present invention is not limited to the following preferred embodiments and can be freely modified within the scope of the present invention. In this specification, percentages are expressed by mass unless otherwise specified. In addition, in this specification, when a numerical range is expressed using "to", the range includes both ends of the numerical range.

[0009] Component (A) used in the present invention is an oil solution having an IOB value of 0.2 to 0.8 and being a solid at 25° C. Examples of oil solutions having an IOB value of 0.2 to 0.8 and being a solid at 25° C. include ultraviolet absorbers such as bisethylhexyloxyphenol methoxyphenyl triazine (IOB=0.43), diethylaminohydroxybenzoyl hexyl benzoate (IOB=0.68), and t-butylmethoxydibenzoylmethane (IOB=0.47), as well as stearyl glycyrrhetinate (IOB=0.33), ceramide NG (IOB=0.46), ceramide NP (IOB=0.70), cholesterol (IOB=0.35), and phytosterols (IOB=0.30-0.35). Commercially available products include TINOSORB S (manufactured by BASF), Phytosterol QI (manufactured by Tama Biochemical Co., Ltd.), and Nissui Marine Cholesterol (manufactured by Nippon Suisan Co., Ltd.). The IOB value refers to the ratio of inorganic value (IV) to organic value (OV) in the organic conceptual diagram, i.e., "inorganic value (IV) / organic value (OV)." One or more of these oils that are solid at 25°C can be used. In the present invention, component (A) is preferably an amphiphilic oil that is solid at 25°C and has an IOB value of 0.2 to 0.8. Here, "solid" refers to a substance that does not deform or exhibit fluidity in a stress-free environment at 25°C under 1 atmosphere.

[0010] Component (A) used in the present invention is not particularly limited as long as it is an oily agent that has an IOB value of 0.2 to 0.8 and is solid at 25°C. However, polycyclic compounds such as cholesterol, phytosterol, and stearyl glycyrrhetinate are preferred, with phytosterol and stearyl glycyrrhetinate being more preferred. From the viewpoints of stability over time and usability, component (A) more preferably contains at least stearyl glycyrrhetinate. Furthermore, at least two or more polycyclic compounds are more preferred, with polycyclic compounds having four or five rings being even more preferred, and phytosterol and stearyl glycyrrhetinate being particularly preferred. Phytosterol is a type of sterol found in trace amounts in plants such as soybeans and rapeseed, and is a mixture of multiple sterols such as β-sitosterol, campesterol, stigmasterol, and brassicasterol. Stearyl glycyrrhetinate is a compound obtained by esterifying stearic acid to the hydroxyl group of glycyrrhetinic acid, which is obtained by hydrolysis of glycyrrhetinic acid found in plants such as licorice. Its systematic name is (20S)-3β-hydroxy-11-oxo-5α-olean-12-en-29-oate octadecyl. Its molecular formula is C48H82O4. The molecular structure of glycyrrhetinic acid is planar, and its 3- and 11-positions are similar to those of cortisone, giving it anti-inflammatory properties. Stearyl glycyrrhetinate is a compound with stearic acid added, and is widely used as an anti-inflammatory ingredient in technical fields where safety is required, such as topical skin preparations and cosmetics.

[0011] The content of component (A) used in the present invention is not particularly limited, but the lower limit is preferably 0.001% by mass (hereinafter referred to as %) or more, more preferably 0.01% or more, and from the viewpoint of non-stickiness, etc., 0.1% or more is even more preferred, and 0.2% or more is particularly preferred. The upper limit is preferably 10% or less, more preferably 5% or less, and from the viewpoint of stability over time, etc., 3% or less is even more preferred, and 2% or less is particularly preferred. The range is preferably 0.001 to 10%, more preferably 0.01 to 5%, even more preferably 0.1 to 3%, and particularly preferably 0.2 to 2%. This range is more preferred from the viewpoint of stability over time, non-stickiness, and other usability aspects.

[0012] Component (B) used in the present invention is at least two oils that are liquid at 25°C and have a Hansen Solubility Parameter (HSP) distance Ra from component (A) of 7.0 or less, and contain at least a hydrocarbon oil. Here, liquid includes oils that exhibit fluidity in a stress-free environment at 1 atmosphere and 25°C, as well as oils that deform in a stress-free environment at 1 atmosphere and 25°C and have a melting point of 45°C or less, and preferably oils that exhibit fluidity in a stress-free environment at 1 atmosphere and 25°C. The Hansen solubility parameter (also known as "HSP") is a value used to predict the solubility of a substance, published by Charles M. Hansen in 1967. It is a parameter based on the idea that "two substances with similar intermolecular interactions tend to dissolve in each other easily." HSP is calculated by the following three parameters (unit: MPa) 1 / 2 ) is composed of δd: Energy due to intermolecular dispersion forces δp: Energy due to intermolecular dipole interactions δh: Energy due to intermolecular hydrogen bonds These three parameters can be considered as coordinates in a three-dimensional space (Hansen space). When the HSPs of two substances are placed in Hansen space, the closer the distance between the two points, the easier it is for them to dissolve in each other. In other words, HSP can be used as an indicator of affinity. A detailed explanation is provided in the March 2010 issue of Kagaku Kogyo (Kagaku Kogyosha), and the HSPs of various substances can be obtained using the computer software "HSPiP: Hansen Solubility Parameters in Practice." This disclosure uses HSPs obtained using this computer software, "HSPiP: Hansen Solubility Parameters in Practice," version 5.3.02.

[0013] Furthermore, Ra refers to the HSP distance that can be calculated using the Ra calculation function of "HSPiP: Hansen Solubility Parameters in Practice." It can also be expressed as follows: When the coordinates of the HSP of component X are (δdX, δpX, δhX), the Ra (unit: MPa) between the coordinates of the HSP of component Y (δdY, δpY, δhY) is 1 / 2 ) can satisfy the following formula: Ra = [4 × (δdX - δdY) 2 +(δpX-δpY) 2 +(δhX-δhY) 2 ] 1 / 2

[0014] That is, when the HSP coordinates of component (A) are (δda, δpa, δha), the HSP coordinates of component (B) (δdb, δpb, δhb) satisfy the following formula. Ra = [4 × (δda-δdb) 2 +(δpa-δpb) 2 +(δha-δhb) 2 ] 1 / 2 ≦7.0 Component (B) used in the present invention may be any oil agent used in ordinary cosmetics, as long as it is liquid at 25°C and has an HSP distance Ra from component (A) of 7.0 or less. For example, one or more oil agents selected from the group consisting of hydrocarbon oils, ester oils, silicone oils, natural animal and vegetable oils, and semi-synthetic oil agents may be used.

[0015] Examples of hydrocarbon oils include linear, branched, and volatile hydrocarbon oils, and specific examples include isododecane, squalane, synthetic squalane, vegetable squalane, mineral oil (liquid paraffin), isoparaffin, hydrogenated polyisobutene, and hydrogenated polydecene. In the present invention, from the viewpoint of stability over time and feel upon use, such as penetration, it is preferable that the hydrocarbon oil contains at least hydrogenated polydecene or squalane, more preferably hydrogenated polydecene or squalane, and even more preferably squalane. Note that, as squalane, either synthetic squalane or vegetable squalane can be suitably used, but vegetable squalane is more preferred.

[0016] Ester oils include isobutyl isostearate, decyl isostearate, methylheptyl isostearate, tricyclodecanemethyl isononanoate, heptyl undecylenate, behenyl erucate, cetyl octanoate, stearyl caprylate, polyglyceryl-3 diisostearate, neopentyl glycol diisononanoate, neopentyl glycol diethylhexanoate, glyceryl distearate, octyl stearate, octyldodecyl stearate, cetyl stearate, diethylhexyl sebacate, dibutyloctyl sebacate, triglyceride, glyceryl stearate ... Glyceryl Behenate, Ethylhexyl Palmitate, Methylheptyl Palmitate, Dipentaerythrityl Hexaisononanoate, Myreth-3 Myristate, Methylheptyl Myristate, Caprylyl Laurate, Decyl Laurate, Myristyl Laurate, Methylheptyl Laurate, Trioleyl Phosphate, Tricetyl Phosphate, Diethylhexyl Carbonate, Oleyl Erucate, Stearyl Stearate, Isostearyl Isostearate, Hexyldecyl Isostearate, Oleyl Oleate, Isocetyl Stearate, Isostearyl Palmitate, Palmit Cetyl myristate, octyldodecyl myristate, isostearyl myristate, isocetyl myristate, cetyl myristate, isodecyl oleate, ethyl oleate, phytosteryl oleate, decyl oleate, octyldodecyl stearoyloxystearate, myristyl myristate, cetearyl isononanoate, cetyl caprate, ethylhexyl stearate, stearyl heptanoate, cetyl ethylhexanoate, hexyldecyl ethylhexanoate, octyldodecyl neopentanoate, octyl palmitate, butyl stearate, neo Isostearyl pentanoate, isopropyl isostearate, ethyl isostearate, isotridecyl isononanoate, PG distearate, isocetyl stearoyloxystearate, PG diisostearate, PG dioleate, glycol dioleate, glycol distearate, pentaerythrityl tetraisostearate, trimethylolpropane triisostearate, isopropyl palmitate, polyglyceryl-2 tetraisostearate, hexyl laurate, cetyl acetate, isodecyl isononanoate, ethylhexyl isononanoate,PEG-3 Trimethylolpropane Tristearate, Tridecyl Neopentanoate, Isopropyl Myristate, Isoamyl Laurate, PEG-3 Trimethylolpropane Triisostearate, Isononyl Isononanoate, PEG-3 Glyceryl Triisostearate, Isodecyl Neopentanoate, PEG-2 Distearate, PEG-4 Glyceryl Tristearate, Cetyl Ricinoleate, Dicaprylyl Carbonate, PEG-2 Diisostearate, PEG-2 Dioleate, Neopentyl Glycol Dicaprate, Dioctyldodecyl Stearoyl Glutamate, Polyglyceryl Triisostearate Examples of suitable glyceryl stearate include PEG-2, diisostearyl malate, glyceryl diisostearate, ceteth-3 stearate, PEG-4 sorbitan triisostearate, PEG-5 glyceryl tristearate, PEG-5 glyceryl triisostearate, PEG-3 distearate, PEG-3 diisostearate, PEG-6 glyceryl tristearate, PEG-5 trimethylolpropane trimyristate, steareth-4 stearate, PEG-3 dipalmitate, PEG-4 distearate, cetyl 2-ethylhexanoate, pentaerythrityl tetraethylhexanoate, and triethylhexanoin. In the present invention, from the viewpoints of excellent compatibility with component (A) and favorably exhibiting a feeling of use, such as stability over time and penetration, the ester oil is preferably one or more selected from the group consisting of cetyl 2-ethylhexanoate, triethylhexanoin, ethyl oleate, pentaerythrityl tetraethylhexanoate, and phytosteryl oleate, more preferably one or more selected from the group consisting of triethylhexanoin, ethyl oleate, and pentaerythrityl tetraethylhexanoate, even more preferably triethylhexanoin and / or pentaerythrityl tetraethylhexanoate, and particularly preferably pentaerythrityl tetraethylhexanoate.

[0017] Examples of silicone oils include methylphenylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, methyltrimethicone, polyether-modified methylpolysiloxane, oleyl-modified methylpolysiloxane, polyvinylpyrrolidone-modified methylpolysiloxane, octamethylcyclotetrasiloxane, dodecamethylcyclohexasiloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, caprylyl trimethicone, methylphenylpolysiloxane, and dimethiconol.

[0018] Examples of natural animal and vegetable oils and semi-synthetic oils include rapeseed oil, meadowfoam oil, and jojoba seed oil.

[0019] However, the corresponding ingredients differ depending on the component (A). For example, if component (A) is stearyl glycyrrhetinate, component (B) may include pentaerythrityl tetraethylhexanoate (Ra=2.81), squalane (Ra=5.28), mineral oil (Ra=3.8), triethylhexanoin (Ra=3.69), isostearic acid (Ra=5.2), ethylhexyl methoxycinnamate (Ra=3.59), jojoba seed oil (Ra=4.05), hydrogenated polydecene (Ra=4.9), ethyl oleate (Ra=4.15), olive fruit oil (Ra=3.57), etc., and if component (A) is phytosterol, In the case of terol, examples of component (B) include pentaerythrityl tetraethylhexanoate (Ra=1.89), squalane (Ra=4.53), mineral oil (Ra=2.88), triethylhexanoin (Ra=1.54), isostearic acid (Ra=2.5), ethylhexyl methoxycinnamate (Ra=2.33), octyldodecanol (Ra=4.59), jojoba seed oil (Ra=2.6), hydrogenated polydecene (Ra=4.29), ethyl oleate (Ra=2.16), olive fruit oil (Ra=1.61), etc., and component (A) is cholesterol. In the case of terol, component (B) includes pentaerythrityl tetraethylhexanoate (Ra=2.36), squalane (Ra=5), mineral oil (Ra=3.37), triethylhexanoin (Ra=1.69), isostearic acid (Ra=2.43), ethylhexyl methoxycinnamate (Ra=1.88), octyldodecanol (Ra=4.22), jojoba seed oil (Ra=3.03), hydrogenated polydecene (Ra=4.77), ethyl oleate (Ra=2.33), olive fruit oil (Ra=1.97), etc., and component (A) is ceramide. In the case of NG, component (B) includes triethylhexanoin (Ra=5.5), isostearic acid (Ra=4.98), ethylhexyl methoxycinnamate (Ra=4.13), octyldodecanol (Ra=3.22), ethyl oleate (Ra=5.71), olive fruit oil (Ra=6.34), etc., and when component (A) is ceramide NP, component (B) includes triethylhexanoin (Ra=6.17), isostearic acid (Ra=5.73), ethylhexyl methoxycinnamate (Ra=4.56), octyldodecanol (Ra=3.92) and ethyl oleate (Ra=6.4). When component (A) is bisethylhexyloxyphenol methoxyphenyl triazine, examples of component (B) include ethylhexyl methoxycinnamate (Ra=6.31) and octyldodecanol (Ra=6.4). When component (A) is diethylaminohydroxybenzoyl hexyl benzoate, examples of component (B) include ethylhexyl methoxycinnamate (Ra=5.06) and octyldodecanol (Ra=6.27). When component (A) is t-butylmethoxydibenzoylmethane, examples of component (B) include ethylhexyl methoxycinnamate (Ra=4.88).

[0020] Component (B) used in the present invention is an oily agent that is liquid at 25°C and has an HSP distance Ra from component (A) of 7.0 or less, and contains at least a hydrocarbon oil. From the viewpoint of stability over time, Ra is preferably 6.0 or less, more preferably 5.5 or less, and even more preferably 5.0 or less. Component (B) more preferably contains a hydrocarbon oil and an ester oil, and the HSP distance Ra from the ester oil to component (A) is preferably 5.0 or less, more preferably 4.5 or less, even more preferably 4.0 or less, and particularly preferably 3.0 or less. This range is more preferable because it provides excellent compatibility with component (A) and favorable stability over time and a favorable feel when used, such as a good penetration feel.

[0021] Table 1 shows the HSP distance Ra between each component (A) and an oil that is liquid at 25°C.

[0022] [Table 1]

[0023] The content of component (B) used in the present invention is not particularly limited, but the lower limit of the total amount of the oil-in-water emulsion cosmetic is preferably 0.1% or more, more preferably 1% or more, and from the viewpoint of stability over time, 2% or more is even more preferred, and 3% or more is particularly preferred. The upper limit is preferably 25% or less, and from the viewpoint of penetration feeling, 20% or less is more preferred, 18% or less is even more preferred, and 15% or less is particularly preferred. The range is preferably 0.1 to 25%, more preferably 1 to 20%, even more preferably 2 to 18%, and particularly preferably 3 to 15%. This range is more preferred from the viewpoint of stability over time and penetration feeling.

[0024] The mass ratio (A) / (B) of component (A) to component (B) used in the present invention is not particularly limited, but the lower limit is preferably 0.001 or more, more preferably 0.01 or more, and even more preferably 0.02 or more. The upper limit is preferably 1.0 or less, more preferably 0.7 or less, even more preferably 0.5 or less, and particularly preferably 0.2 or less. The range is preferably 0.001 to 1, more preferably 0.01 to 0.7, even more preferably 0.01 to 0.5, and particularly preferably 0.02 to 0.2. This range is more preferable in terms of stability over time, penetration feel, and non-stickiness.

[0025] Component (C) used in the present invention is a phospholipid. Phospholipids have a structure in which fatty acids and phosphoric acid are bound to a central skeleton of glycerin or sphingosine, and an alcohol is further ester-bonded to the phosphoric acid. Fatty acids constituting phospholipids include saturated and unsaturated carboxylic acids having 7 to 22 carbon atoms, preferably 14 to 20 carbon atoms. Furthermore, alcohols constituting phospholipids often contain nitrogen, and examples of such alcohols include choline, ethanolamine, inositol, and serine. Component (C) used in the present invention is not particularly limited as long as it is one used in ordinary cosmetics, and examples thereof include soybean phospholipids, hydrogenated soybean phospholipids, egg yolk phospholipids, hydrogenated egg yolk phospholipids, sunflower phospholipids, hydrogenated sunflower phospholipids, etc. It may also be a lysophospholipid in which one fatty acid group has been removed from a phospholipid, or a hydrogenated lysophospholipid in which such a phospholipid has been hydrogenated. These may be used alone or in combination as needed. Examples of commercially available hydrogenated phospholipids include Resinol S-10, Resinol S-10EZ, Resinol S-10M, Resinol S-10EX, Resinol S-PIE (all manufactured by Nikko Chemicals), COATSOME NC-21 (manufactured by NOF), Phospholipon 100H, Phospholipon 90H, Phospholipon 80H, Phospholipon 90G (all manufactured by Phospholipid), etc. Examples of hydrogenated lysophospholipids include LP70H (manufactured by Nippon Fine Chemicals), SLP-White Lyso H, SLP-LPC 70H (manufactured by Tsuji Oil Mills), etc. Alternatively, a mixture of phospholipids with phytosterol or cholesterol may be used, such as PHYTOCOMPO-PP (a mixture of hydrogenated soybean phospholipids and phytosterols) (manufactured by Nippon Fine Chemicals Co., Ltd.) or COMPOSITE-PC (a mixture of hydrogenated soybean phospholipids and cholesterol) (manufactured by Nippon Fine Chemicals Co., Ltd.).

[0026] The content of component (C) used in the present invention is not particularly limited, but the lower limit is preferably 0.05% or more of the total amount of the oil-in-water emulsion cosmetic. From the viewpoint of the feeling of penetration, etc., 0.1% or more is more preferable, 0.2% or more is even more preferable, and 0.5% or more is particularly preferable. The upper limit is preferably 10% or less, more preferably 5% or less, and from the viewpoint of stability over time and non-stickiness, etc., 3% or less is even more preferable. The range is preferably 0.05 to 10%, more preferably 0.1 to 5%, even more preferably 0.2 to 3%, and particularly preferably 0.5 to 3%. This range is more preferable from the viewpoints of stability over time, feeling of penetration, and non-stickiness.

[0027] The mass content ratio (C) / [(A)+(B)] of component (C) relative to the total mass content of all components (A) and (B) used in the present invention is not particularly limited, but from the viewpoints of stability over time, penetration feeling, non-stickiness, etc., the lower limit is 0.005 or more, preferably 0.01 or more, more preferably 0.03 or more, even more preferably 0.05 or more, and particularly preferably 0.1 or more. From the viewpoint of non-stickiness, etc., the upper limit is 0.7 or less, preferably 0.5 or less, more preferably 0.4 or less, and even more preferably 0.3 or less. The range is 0.005 to 0.7, preferably 0.01 to 0.7, more preferably 0.03 to 0.5, even more preferably 0.05 to 0.3, and particularly preferably 0.1 to 0.3. This range is more preferable from the viewpoints of stability over time, penetration feeling, and non-stickiness.

[0028] Component (D) used in the present invention is a polyhydric alcohol, excluding component (E1), having an IOB value of 1.5 to 5.0. Examples of polyhydric alcohols having an IOB value of 1.5 to 5.0 include propylene glycol (3.3), dipropylene glycol (1.8), 1,3-butylene glycol (2.5), 1,2-pentanediol (2.0), glycerin (5.0), isoprene glycol (2.2), and PEG-8 (MW 400) (2.3) (see Reference 1: Atsushi Fujita's Organic Conceptual Diagram: "The Domain of Chemistry," Vol. 11, No. 10 (1957) pp. 719-725). These may be used alone or in combination as needed. From the viewpoints of stability over time and non-stickiness, 1,3-butylene glycol, dipropylene glycol, and glycerin are preferred, with 1,3-butylene glycol and glycerin being more preferred.

[0029] The content of component (D) used in the present invention is not particularly limited, but from the viewpoint of stability over time, the lower limit is 4% or more, preferably 8% or more, more preferably 10% or more, and even more preferably 12% or more, relative to the total amount of the oil-in-water emulsion cosmetic. From the viewpoint of stability over time, penetration feeling, and non-stickiness, the upper limit is less than 35%, more preferably 30% or less, and even more preferably 25% or less. The range is 4% or more and less than 35%, preferably 4 to 30%, more preferably 8 to 30%, more preferably 10 to 30%, even more preferably 12 to 30%, and particularly preferably 12 to 25%. This range is preferable from the viewpoint of stability over time, penetration feeling, and non-stickiness.

[0030] The oil-in-water emulsion cosmetic of the present invention preferably contains, as component (E), one or more selected from components (E1) and (E2). Here, component (E1) is one or more selected from the group consisting of polyglycerin and alkylene oxide derivatives, and component (E2) is one or more selected from the group consisting of cellulose-based water-soluble polysaccharides, alginates, and Tremella fuciformis polysaccharides. The inclusion of component (E1) or component (E2) is more preferred because it provides excellent penetration and non-stickiness while exhibiting good stability over time, and further improves the feel during use, such as smooth spreadability and plumpness of the skin after application.

[0031] Component (E1) used in the present invention is one or more selected from the group consisting of polyglycerin and alkylene oxide derivatives. In the present invention, component (E1) more preferably contains polyglycerin and alkylene oxide derivatives from the viewpoints of non-stickiness, smooth spreadability, and plump feeling on the skin after application. The polyglycerin refers to a dimer or higher of glycerin, and examples thereof include diglycerin, triglycerin (polyglycerin-3), which is a trimer of glycerin, tetraglycerin, which is a tetramer of glycerin, hexaglycerin, which is a hexamer of glycerin, decaglycerin, which is a decamer of glycerin, and eicosaglycerin, which is a decamer of glycerin. One or more of these can be used. In the present invention, from the viewpoint of usability, such as non-stickiness and smooth spreadability, one or more selected from diglycerin and polyglycerin-3 are preferred. Commercially available products include Diglycerin S and PGL-S (both manufactured by Sakamoto Pharmaceutical Industry Co., Ltd.). The alkylene oxide derivative is a compound in which a polyoxyalkylene is bonded to a monohydric alcohol or a polyhydric alcohol, and examples thereof include polyoxyalkylene glycerin, polyoxyalkylene alkyl glucoside, polyoxypropylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene polyoxypropylene oxybutylene alkyl ether, polyoxyalkylene sorbitol, polyoxyalkylene erythritol ether, polyoxyalkylene pentaerythritol ether, polyoxyalkylene diglyceryl ether, polyoxyalkylene trimethylolpropane, polyoxypropylene glycol, polyoxyethylene polyoxypropylene glycol, polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether, polyoxyalkylene xylitol, polyoxyalkylene dipentaerythritol, polyoxyalkylene inositol, polyoxyalkylene sucrose ether, polyoxyalkylene trihalose ether, and polyoxyalkylene maltitol ether.In the present invention, from the viewpoint of usability such as non-stickiness and smooth spreadability, the alkylene oxide derivative is more preferably one or more selected from the group consisting of polyoxyalkylene glycerin, polyoxyalkylene alkyl glucoside, polyoxyalkylene diglyceryl ether, and polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether, and more preferably polyoxyethylene glycerin, polyoxypropylene diglyceryl ether, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside, polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether, and polyoxybutylene polyoxyethylene polyoxypropylene glyceryl It is more preferable that the alkyl ether is one or more selected from the group consisting of ethers, and even more preferable that the alkyl ether is one or more selected from the group consisting of polyoxyethylene glycerin (26 E.O.), polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether (3B.O.) (8 E.O.) (5P.O.), polyoxyethylene methyl glucoside (10 E.O.), polyoxyethylene methyl glucoside (20 E.O.), polyoxypropylene methyl glucoside (10 E.O.), polyoxypropylene methyl glucoside (20 E.O.), and polyoxypropylene diglyceryl ether (9 E.O.), and polyoxyethylene glycerin (26 E.O.) is particularly preferable.

[0032] The alkylene oxide derivative preferably has an IOB value of 3.0 or less, more preferably 2.5 or less, and even more preferably 2.0 or less. The lower limit is not particularly limited, but is preferably 0.5 or more. Furthermore, in the present invention, the alkylene oxide derivative preferably has an inorganic value (IV) of 400 or more, more preferably 500 or more, even more preferably 600 or more, and particularly preferably 800 or more. The upper limit is not particularly limited, but is preferably 5,000 or less, more preferably 4,000 or less, and even more preferably 3,000 or less. Specific examples include polyoxypropylene diglyceryl ether (9 E.O.) (IOB value: 0.91, inorganic value: 600), polyoxyethylene methyl glucoside (10 E.O.) (IOB value: 2.22, inorganic value: 1200), polyoxyethylene methyl glucoside (20 E.O.) (IOB value: 2.07, inorganic value: 1950), polyoxypropylene methyl glucoside (10 E.O.) (IOB value: 0.95, inorganic value: 705), polyoxypropylene methyl glucoside (20 E.O.) (IOB value: 0.68, inorganic value: 905), and polyoxyethylene glycerin (26 E.O.) (IOB value: 1.89, inorganic value: 2085). Here, the inorganic value refers to the inorganic value (IV) of the organic conceptual diagram at the IOB value mentioned above. This range is more preferable because it allows for an improvement in the feel during use, such as a lack of stickiness, smooth spreadability, and a plump feeling on the skin after application, while still exhibiting good stability over time.

[0033] The component (E2) used in the present invention is one or more selected from the group consisting of cellulose-based water-soluble polysaccharides, alginates, and Tremella fuciformis polysaccharides. In the present invention, the component (E2) is more preferably a cellulose-based water-soluble polysaccharide and / or a Tremella fuciformis polysaccharide. Examples of the water-soluble cellulose polysaccharides include methyl cellulose, ethyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, etc. In the present invention, from the viewpoint of penetration feeling, non-stickiness, and smooth spreading, carboxymethyl cellulose, sodium carboxymethyl cellulose, hydroxypropyl methyl cellulose, and hydroxyethyl cellulose are more preferred, carboxymethyl cellulose, sodium carboxymethyl cellulose, and hydroxypropyl methyl cellulose are even more preferred, and sodium carboxymethyl cellulose is particularly preferred. Examples of such water-soluble cellulose polysaccharides are commercially available, such as CMC Daicel (manufactured by Daicel Chemical Industries, Ltd.) and Metolose 90SH-15000 (manufactured by Shin-Etsu Chemical Co., Ltd.). Alginic acid is an acidic polysaccharide found in brown algae and the like, and is composed of two uronic acids, mannuronic acid and glucuronic acid. A neutral salt formed by binding the carboxyl group of alginic acid with a sodium ion or the like forms an alginate. Examples of alginate include calcium alginate and sodium alginate. Commercially available examples of such alginates include Snow Algin M (manufactured by Fuji Chemical Industry Co., Ltd.). The Tremella fuciformis polysaccharide is a water-soluble polysaccharide extracted from mushrooms belonging to the Tremella family using a solvent. Examples of the extraction solvent include water, lower alcohols such as ethanol, and polyhydric alcohols such as 1,3-butylene glycol and dipropylene glycol. These solvents may be used alone or in combination. Among these, water, hot water, or a solvent miscible with water in any ratio, such as a mixture of ethanol and 1,3-butylene glycol, is preferred, with hot water being more preferred. The extraction method is not particularly limited, but for example, a method of extracting a tremella fuciformis mushroom with a solvent for extraction is The resulting extract can be used as is or as needed. Concentrated products or products dried into powder form by spray drying or freeze drying can also be used. Cut. Such Tremella fuciformis polysaccharide is not particularly limited, but examples of commercially available products include Tremoist-TP, Tremoist-SL (manufactured by Nippon Fine Chemical Co., Ltd.), and Tremella fuciformis polysaccharide-P (manufactured by Oryza Oil & Fat Chemical Co., Ltd.).

[0034] The content of component (E) used in the present invention, relative to the total amount of the oil-in-water emulsion cosmetic, is preferably 0.01% or more, more preferably 0.03% or more, even more preferably 0.06% or more, even more preferably 0.1% or more, and particularly preferably 1% or more. The upper limit is preferably 15% or less, more preferably 10% or less, even more preferably 8% or less, and particularly preferably 6% or less. The range is preferably 0.01 to 15%, more preferably 0.05 to 10%, even more preferably 0.03 to 8%, even more preferably 0.1 to 6%, and particularly preferably 1 to 6%. This range is more preferable in terms of usability, such as penetration, non-stickiness, smooth spreadability, and plumpness of the skin after application.

[0035] Furthermore, the content of component (E1) used in the present invention, relative to the total amount of the oil-in-water emulsion cosmetic, is preferably 0.1% or more, more preferably 0.5% or more, even more preferably 1% or more, and particularly preferably 2% or more. The upper limit is preferably 15% or less, more preferably 10% or less, even more preferably 8% or less, and particularly preferably 6% or less. The range is preferably 0.1 to 15%, more preferably 0.5 to 10%, even more preferably 1 to 8%, and particularly preferably 2 to 6%. This range is more preferable in terms of usability, such as penetration, non-stickiness, smooth spreadability, and plumpness of the skin after application.

[0036] The content of component (E2) used in the present invention, relative to the total amount of the oil-in-water emulsion cosmetic, is preferably 0.00001% or more, more preferably 0.0001% or more, even more preferably 0.001% or more, and particularly preferably 0.01% or more. The upper limit is preferably 1% or less, more preferably 0.5% or less, even more preferably 0.2% or less, and particularly preferably 0.1% or less. The range is preferably 0.00001 to 1%, more preferably 0.0001 to 0.5%, even more preferably 0.001 to 0.2%, and particularly preferably 0.01 to 0.1%. This range is more preferable in terms of usability, such as penetration, non-stickiness, and smooth spreadability.

[0037] In the present invention, component (E) more preferably contains components (E1) and (E2), because this allows for improved feel upon use, such as excellent penetration and smooth spreadability, non-stickiness, and plumpness of the skin after application. The mass ratio (E1) / (E2) of component (E1) to component (E2) is not particularly limited, but the lower limit is preferably 10 or more, more preferably 20 or more, even more preferably 40 or more, and particularly preferably 50 or more. The upper limit is preferably 300 or less, more preferably 250 or less, even more preferably 200 or less, and particularly preferably 180 or less. The range is preferably 10 to 300, more preferably 20 to 250, even more preferably 40 to 200, and particularly preferably 50 to 180. This range is more preferable in terms of penetration, non-stickiness, smooth spreadability, and plumpness of the skin after application.

[0038] In addition to the above-mentioned components (A) to (E), the oil-in-water emulsion cosmetic of the present invention may contain, as appropriate, ingredients commonly used in cosmetics, such as oily components as base materials or emollient components, powders, surfactants for powder dispersion or for adjusting texture, water-soluble polymers, monohydric alcohols such as ethanol, ultraviolet absorbers, moisturizers, anti-fading agents, antioxidants, anti-foaming agents, cosmetic ingredients, preservatives, fragrances, etc., within ranges that do not impair the effects of the present invention.

[0039] The oil-in-water emulsion cosmetic of the present invention may contain water, but is not particularly limited as long as it is one that can be contained in cosmetics, quasi-drugs, pharmaceuticals, etc. The water may be purified water, hot spring water, deep sea water, or steam-distilled water from plants, and one or more types may be appropriately selected and used as needed. The content is not particularly limited and can be appropriately contained depending on the amount of other ingredients, but is preferably 40 to 85%, more preferably 40 to 80%, and even more preferably 40 to 70% of the total amount of the oil-in-water emulsion cosmetic.

[0040] The oily component is not particularly limited as long as it is one commonly used in cosmetics other than components (A) and (B), and examples thereof include higher alcohols, fluorinated oils, and oily gelling agents, regardless of their origin (e.g., animal oil, vegetable oil, synthetic oil) and their nature (e.g., solid oil, semi-solid oil, liquid oil). Specific examples include higher alcohols such as stearyl alcohol, cetyl alcohol, lauryl alcohol, oleyl alcohol, isostearyl alcohol, and behenyl alcohol; silicones such as decamethylcyclopentasiloxane and fluorine-modified organopolysiloxane; fluorinated oils such as perfluorodecane, perfluorooctane, and perfluoropolyether; and oily gelling agents such as starch fatty acid esters, 12-hydroxystearic acid, and calcium stearate. In particular, higher alcohols can be included in the present invention because they provide a good feel during use and favorable stability over time. From the viewpoint of optimally exerting the effects of the present invention, the higher alcohol is preferably a plant-derived higher alcohol, and more preferably one or more selected from plant-derived stearyl alcohol, cetyl alcohol, and behenyl alcohol. The content of the higher alcohol is preferably 0.1 to 5%, more preferably 0.5 to 2%, of the total amount of the oil-in-water emulsion cosmetic.

[0041] The powder is not particularly limited by its shape (e.g., plate-like, spindle-like, needle-like, etc.), particle size (e.g., fine particles, pigment-grade, etc.), particle structure (e.g., porous, non-porous, etc.), and examples thereof include inorganic powders, organic powders, composite powders, etc. Specific examples include inorganic powders (e.g., silica, metal oxide, talc, sericite, etc.), organic powders (e.g., magnesium stearate, zinc stearate, N-acyl lysine, polyethylene terephthalate, nylon, polymethyl methacrylate, methylsiloxane network polymer, etc.), and composite powders (e.g., titanium oxide-containing silicon dioxide, zinc oxide-containing silicon dioxide, etc.), and the like. One or more of these may be used. Furthermore, one or more of these powders may be used as a composite, or may be surface-treated by a known method using a fluorine compound, metal soap, surfactant, oil, hydrocarbon, etc. Any powder commonly used in cosmetics can be used as the powder, and for the purpose of adjusting the feel, etc., powders such as silicone powder, talc, sericite, silica, mica, kaolin, calcium carbonate, aluminum oxide, polyethylene powder, polymethyl methacrylate, and nylon powder can be used. Metal oxide powders can also be used to impart UV protection, such as zinc oxide, titanium oxide, and cerium oxide, and these can be used alone or in combination. These powders may be surface-treated by known surface treatment methods, such as silica treatment, alumina treatment, aluminum hydroxide treatment, fluorine compound treatment, silicone treatment, silicone resin treatment, pendant treatment, silane coupling agent treatment, titanium coupling agent treatment, silane treatment, oil treatment, N-acylated lysine treatment, polyacrylic acid treatment, metal soap treatment, acrylic resin treatment, and metal oxide treatment. However, in the present invention, if a large amount of powder is contained, the feeling of squeaking may become stronger, so the content of powder in the oil-in-water emulsion cosmetic is preferably 5% or less, more preferably 1% or less.

[0042] As the surfactant other than component (C), any surfactant generally used in cosmetics can be used, such as a nonionic surfactant, an anionic surfactant, a cationic surfactant, and an amphoteric surfactant.

[0043] Examples of ultraviolet absorbers other than component (A) include benzophenones, PABAs, cinnamates, salicylates, and oxybenzone; examples of moisturizers include proteins, mucopolysaccharides, collagen, elastin, and keratin; examples of antioxidants include α-tocopherol and ascorbic acid; examples of cosmetic ingredients include vitamins, anti-inflammatory agents, and herbal medicines; and examples of preservatives include parahydroxybenzoates and phenoxyethanol.

[0044] The average particle size of the emulsion droplets in the oil-in-water emulsion cosmetic of the present invention is preferably 1 to 15 μm, more preferably 1 to 10 μm, and even more preferably 1 to 5 μm. Typically, when a large amount of oily component is incorporated into an oil-in-water emulsion cosmetic, stability and stickiness become a concern. Furthermore, as the amount of oily component increases, the size of the emulsion droplets also increases, which may result in a decrease in stability over time and a decrease in the sense of penetration. However, in the present invention, even when the emulsion droplets are large (for example, an average particle size of 1 μm or more), it is possible to obtain an oil-in-water emulsion cosmetic that ensures stability over time, has excellent penetration and non-stickiness, and is also excellent in terms of smooth spreadability and plumpness of the skin after application.

[0045] In the present invention, the average particle size of emulsified droplets can be measured by measuring the particle sizes of 50 emulsified droplets at room temperature using an optical microscope (manufactured by Olympus Corporation) and calculating the average value.

[0046] The viscosity of the oil-in-water emulsion cosmetic of the present invention was measured using a Brookfield rotational viscometer after storing the prepared oil-in-water emulsion cosmetic at 30°C for one day. The viscosity of the oil-in-water emulsion cosmetic of the present invention is not particularly limited, but the viscosity at 30°C is preferably 1,000 mPa·s or more, more preferably 2,000 mPa·s, and even more preferably 3,000 mPa·s or more. The upper limit is not particularly limited, but the viscosity at 30°C is preferably 80,000 mPa·s or less, more preferably 40,000 mPa·s or less, even more preferably 20,000 mPa·s or less, and particularly preferably 10,000 mPa·s or less. Setting the viscosity within this range is preferable because it ensures stability over time while providing excellent usability, such as a smooth penetration and non-stickiness.

[0047] The oil-in-water emulsion cosmetic of the present invention can be used in basic cosmetics such as serums, lotions, emulsions, creams, sheet masks, and sunscreens, as well as makeup cosmetics such as body cosmetics, foundations, bases, concealers, and lip cosmetics. It can also be used on the skin of the face, body, hands, feet, and so on, as well as hair, and can also be used as a hair mist, hair milk, or hair gel. Skin care cosmetics such as serums, emulsions, creams, and sheet masks are preferred, as these can optimally exhibit the effects of the present invention.

[0048] The oil-in-water emulsion cosmetic of the present invention can be filled into a non-aerosol spray container or an aerosol spray container and sprayed as a mist, or can be impregnated into a nonwoven fabric and used as a sheet-like cosmetic. The oil-in-water emulsion cosmetic of the present invention can be filled into a bottle, dispenser, tube, jar, etc. and used by directly handling, or it can be impregnated into a nonwoven fabric and used as a sheet-like cosmetic.

[0049] (Manufacturing method) The method for producing the oil-in-water emulsion cosmetic of the present invention is not particularly limited, and it can be prepared by a conventional method. For example, it can be obtained by heating and dissolving components (A) to (D), adding an aqueous component to the mixture, and emulsifying it. As mentioned above, when component (A) is blended into an oil-in-water emulsion composition, there is a concern about poor stability such as gelation, precipitation, or creaming. However, in the present invention, from the viewpoint of improving stability and enabling the effects of the present invention to be more suitably exhibited, it is more preferable to use the following production method. Specifically, Step (1) of mixing and dissolving component (C) phospholipid in component (D) polyhydric alcohol having an IOB value of 1.5 to 5.0; a step (2) of preparing an intermediate composition by adding thereto at least two kinds of oils: component (A) an oil solution which has an IOB value of 0.2 to 0.8 and is solid at 25°C; and component (B) an oil solution which has an HSP distance Ra from said (A) of 7.0 or less and is liquid at 25°C; and (3) adding water to the intermediate composition to emulsify it. Including, In the method for producing an oil-in-water emulsion cosmetic, when the component (A) is cholesterol and / or phytosterol, the cholesterol and / or phytosterol is added in step (1).

[0050] In the present invention, it is preferable that the dissolving and mixing in the step (1), the preparation of the intermediate composition in the step (2), and the emulsification in the step (3) are all carried out under heating. In the present invention, the heating temperature in the production method is preferably 50 to 100°C, more preferably 60 to 90°C.

[0051] In the present invention, component (A) is preferably cholesterol and / or phytosterol, since it can form a stable emulsion. It is also possible to use a premix of component (C) phospholipid and cholesterol and / or phytosterol. Furthermore, by appropriately preparing the intermediate composition in step (2), the uniformity of the emulsion droplets can be increased, resulting in a cosmetic preparation with excellent stability over time. Furthermore, by appropriately preparing the intermediate composition, uniform emulsion droplets can be obtained without the application of strong mechanical force, which is more preferable. In the cosmetic preparation of the present invention, a suitable intermediate composition can be prepared by following the stepwise process of steps (1) and (2), which is more preferable. Furthermore, other components can be mixed and dissolved in the water added to the intermediate composition in step (3) in advance, to an extent that does not inhibit the dispersion of the intermediate composition. In the present invention, component (E) can be added at any stage of steps (1) to (3) or after step (3) (hereinafter referred to as step (4)). However, from the viewpoint of improving stability and more suitably exhibiting the effects of the present invention, component (E) is preferably added to step (3) and / or step (4). Furthermore, component (E1) is more preferably added to step (3) and / or step (4), and component (E2) is more preferably added to step (4). Furthermore, in the present invention, component (D) is preferably added to at least step (1), and a portion of component (D) may be added to another step (e.g., step (3) or (4)). Furthermore, component (E) is preferably added to at least step (3) or step (4), and a portion of component (E) may be added to another step (e.g., step (1)). The content of water used in step (3) is not particularly limited, but is preferably 5 to 60%, more preferably 10 to 60%, and even more preferably 10 to 50%, of the total amount of the oil-in-water emulsion cosmetic. When a higher alcohol is added, it is preferable to add it in step (2).

[0052] In the description of the above manufacturing method, the components (A) to (E), their respective contents, and their respective mass ratios, Explanations of each component, term, etc. will be omitted as appropriate, but the explanations given above for the cosmetic material also apply to this method and can be adopted as appropriate.

[0053] The present invention can also employ the following configuration. <1> The following components (A) to (D): (A) An oil solution with an IOB value of 0.2 to 0.8 that is solid at 25°C (B) At least two oils that are liquid at 25°C and have an HSP distance Ra of 7.0 or less from component (A). (C) Phospholipids (D) Polyhydric alcohol having an IOB value of 1.5 to 5.0: 4% by mass or more and less than 35% by mass wherein the component (B) contains at least a hydrocarbon oil, and the mass ratio (C) / {(A)+(B)} of the content of the component (C) to the total content mass of the components (A) and (B) is 0.005 to 0.7. <2> Furthermore, component (E) contains one or more selected from the following components (E1) and (E2): the component (E1) is one or more selected from the group consisting of polyglycerin and alkylene oxide derivatives, The component (E2) is one or more selected from the group consisting of cellulose-based water-soluble polysaccharides, alginates, and Tremella fuciformis polysaccharides. The aforementioned <1> The oil-in-water emulsion cosmetic composition according to claim 1. <3> The alkylene oxide derivative of the component (E1) is one or more selected from the group consisting of polyoxyethylene glycerin, polyoxypropylene diglyceryl ether, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside, polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether, and polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether. <2> The oil-in-water emulsion cosmetic according to claim 1. <4> The alkylene oxide derivative has an IOB value of 0.3 or less. <2> or <3> The oil-in-water emulsion cosmetic composition according to claim 1. <5> The inorganic value (IV) of the alkylene oxide derivative is 400 or more. <2> ~ <4> The oil-in-water emulsion cosmetic according to any one of the above items. <6> The average particle size of the emulsified droplets is 1 to 15 μm. <1> ~ <5> The oil-in-water emulsion cosmetic according to any one of the above items. <7> The component (B) contains an ester oil that is liquid at 25°C, and the HSP distance Ra between the ester oil and the component (A) is 5.0 or less. <1> ~ <6> The oil-in-water emulsion cosmetic according to any one of the above items. <8> The component (A) contains at least stearyl glycyrrhetinate. <1> ~ <7> The oil-in-water emulsion cosmetic according to any one of the above items. <9> The component (A) contains at least two kinds of the component (A). <1> ~ <8> The oil-in-water emulsion cosmetic according to any one of the above items. <10> The at least two components (A) are polycyclic compounds. <9> The oil-in-water emulsion cosmetic composition according to claim 1. <11> The polycyclic compound is phytosterol and stearyl glycyrrhizinate. <10> The oil-in-water emulsion cosmetic composition according to claim 1. <12> The component (E1) contains polyglycerin and an alkylene oxide derivative. <1> ~ <11> The oil-in-water emulsion cosmetic according to any one of the above items. <13> The component (E) contains (E1) and component (E2). <1> ~ <12> The oil-in-water emulsion cosmetic according to any one of the above items. <14> the mass ratio (E1) / (E2) of the component (E1) to the component (E2) is 10 to 300; <13> The oil-in-water emulsion cosmetic composition according to claim 1. <15> Further, the above-mentioned composition contains a higher alcohol derived from a plant. <1> ~ <14> The oil-in-water emulsion cosmetic according to any one of the above items. <16> The viscosity at 30°C is 1,000 to 80,000 mP·s. <1> ~ <15> The oil-in-water emulsion cosmetic according to any one of the above items. <17> A method for producing an oil-in-water emulsion cosmetic, comprising: Step (1) of mixing and dissolving component (C) phospholipid in component (D) polyhydric alcohol having an IOB value of 1.5 to 5.0; a step (2) of preparing an intermediate composition by adding thereto at least two kinds of oils: component (A) an oil solution which has an IOB value of 0.2 to 0.8 and is solid at 25°C; and component (B) an oil solution which has an HSP distance Ra from said component (A) of 7.0 or less and is liquid at 25°C; and (3) adding water to the intermediate composition to emulsify it. Including, In the method for producing an oil-in-water emulsion cosmetic, when the component (A) is cholesterol and / or phytosterol, the cholesterol and / or phytosterol is added in step (1). <18> The component (B) contains at least a hydrocarbon oil. <17> 1. A method for producing the oil-in-water emulsion cosmetic according to claim 1. <19> The steps (1) to (3) are carried out under heating. <17> or <18> 1. A method for producing the oil-in-water emulsion cosmetic according to claim 1. <20> The heating temperature in the steps (1) to (3) is 50 to 100°C. <19> 1. A method for producing the oil-in-water emulsion cosmetic according to claim 1. <21> The content of the component (D) in the step (1) is 4 to 30% by mass based on the total amount of the oil-in-water emulsion cosmetic. <17> ~ <20> The present invention is a method for producing the oil-in-water emulsion cosmetic according to any one of the above. <22> Furthermore, component (E) contains one or more selected from the following components (E1) and (E2): the component (E1) is one or more selected from the group consisting of polyglycerin and alkylene oxide derivatives, The component (E2) is one or more selected from the group consisting of cellulose-based water-soluble polysaccharides, alginates, and Tremella fuciformis polysaccharides. The aforementioned <17> ~ <21> The present invention is a method for producing the oil-in-water emulsion cosmetic according to any one of the above. <23> The component (E) is added in step (3) and / or after step (3), <22> 1. A method for producing the oil-in-water emulsion cosmetic according to claim 1. <24> Further, the above-mentioned <17> ~ <23> The present invention is a method for producing the oil-in-water emulsion cosmetic according to any one of the above. <25> The higher alcohol is added to step (2), <24> 1. A method for producing the oil-in-water emulsion cosmetic according to claim 1. [Example]

[0054] The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples. Examples 1 to 22 and Comparative Examples 1 to 8: Oil-in-water emulsion cosmetics Oil-in-water emulsion cosmetics were prepared according to the formulations shown in Tables 2 and 3 below, and were evaluated for average particle size, stability over time, penetration feel, and non-stickiness using the evaluation methods described below. The results are also shown in Tables 2 and 3. Furthermore, for Examples 1 and 15 to 22, smoothness of spread and plumpness of skin after application were also evaluated using the evaluation methods described below. The results are also shown in Table 4. The values ​​in the tables represent pure contents.

[0055] [Table 2]

[0056] [Table 3]

[0057] [Table 4] (Note 1) Resinol S-10EZ (manufactured by Nikko Chemicals Co., Ltd.) (Note 2) LP70H (manufactured by Nippon Fine Chemical Co., Ltd.) (Note 3) J-Lecithin CLO (manufactured by J-Oil Mills) (Note 4) Phytosterol QI (Tama Biochemical Co., Ltd.) (Note 5) Nissui Marine Cholesterol (manufactured by Nippon Suisan Kaisha) (Note 6) CERAMIDE2 (manufactured by Croda Japan) (Note 7) Diglycerin S (manufactured by Sakamoto Pharmaceutical Co., Ltd.) (Note 8) LIPONIC EG-1 (manufactured by Shima Boeki) (Note 9) CMC Daicel 1170 (manufactured by Daicel Corporation) (Note 10) Snow Algin M (Fuji Chemical Industry Co., Ltd.) (Note 11) TREMOIST-TP (manufactured by Nippon Fine Chemical Co., Ltd.) (Note 12) CARBOPOL 980 (manufactured by LUBRIZOL ADVENCED MATERIALS) (Note 13) CARBOPOL 1382 (manufactured by LUBRIZOL ADVENCED MATERIALS)

[0058] (Manufacturing method) A. Heat ingredients (1) to (9) to 70°C and mix uniformly. B. Dissolve components (10) to (17), (24), and (25) by heating to 70°C. Gradually add B to CA and mix and disperse using a Despa mixer. D. Dissolve ingredients (18) and (20) by heating to 70°C. Gradually add D to EC and mix and disperse using a Despa mixer. After the FE was cooled to room temperature, components (21) to (23) and (26) to (31) were added and mixed to obtain an oil-in-water emulsion cosmetic.

[0059] (Evaluation method 1: average particle size) The average particle size of the emulsified droplets was determined by measuring the particle sizes of 50 emulsified droplets at room temperature using an optical microscope (Olympus Corporation), calculating the average value, and judging according to the following criteria. <Judgment criteria> (Judgment): (Evaluation) A: 1 to 5 μm B: Over 5 μm and 10 μm or less C: Over 10 μm and 15 μm or less D: Over 15 μm

[0060] (Evaluation method 2: Stability over time) The oil-in-water emulsion cosmetics of Examples 1 to 22 and Comparative Examples 1 to 8 were left at 5°C for one month, and then the samples were returned to 25°C. The presence or absence of gelation was visually confirmed and judged according to the following criteria. <Judgment criteria> (Judgment): (Evaluation) ◎ (Excellent): No gelation observed ○ (Good): Almost no gelation observed × (unacceptable): gelation observed

[0061] (Evaluation method 3: "Sensation of penetration," "Smoothness of spread," "Plumpness of skin after application") Ten expert cosmetic evaluators applied the oil-in-water emulsion cosmetics of the Examples and Comparative Examples to the entire face, and each evaluated the "sensation of penetration," "smoothness of spread," and "fullness of skin after application" on a 5-point scale according to the following evaluation criteria, assigning a score to each sample, and then judging the average score of the scores of all the panels according to the following evaluation criteria. <Evaluation criteria> (Score): (Results) 5 points: Very strong 4 points: Somewhat felt 3 points: Neither 2 points: Not much 1 point: No feeling <Judgment criteria> (Judgment): (Average score) ◎(Excellent): Over 4.0 points ~ 5.0 points ○(Good): More than 3.5 points to less than 4.0 points × (not possible): 1.0~3.5 points or less

[0062] (Evaluation method 4: "non-stickiness") Ten expert cosmetic evaluators applied the oil-in-water emulsion cosmetics of the above Examples and Comparative Examples to the entire face, and each evaluated the "non-stickiness" on a 5-point scale according to the following evaluation criteria, assigning a score to each sample. Furthermore, the average score of the scores of all the panels was judged according to the following evaluation criteria. <Evaluation criteria> (Score): (Results) 5 points: No sensation 4 points: Not much 3 points: Neither 2 points: Somewhat felt 1 point: Very much <Judgment criteria> (Judgment): (Average score) ◎(Excellent): Over 4.0 points ~ 5.0 points ○(Good): More than 3.5 points to less than 4.0 points × (not possible): 1.0~3.5 points or less

[0063] As is clear from the results in Tables 2 to 4, the oil-in-water emulsion cosmetics of Examples 1 to 22 of the present invention did not gel and had excellent stability over time, and were excellent in terms of penetration, non-stickiness, smooth spreadability, and plumpness of the skin after application, compared to the oil-in-water emulsion cosmetics of Comparative Examples 1 to 8. On the other hand, in Comparative Example 1 (Ra = 12.92), Comparative Example 2 (Ra = 7.17), and Comparative Example 3 (Ra = 9.25, 7.12), which used liquid oils in which the HSP distance between component (A) and component (B) was greater than 7.0, gelation progressed, and the stability over time and penetration feeling were lacking, resulting in unsatisfactory results. Furthermore, in Comparative Example 4, in which a polyhydric alcohol with an IOB value of less than 1.5 was used as component (D), the stability over time was poor and a satisfactory product was not obtained. Furthermore, Comparative Example 5, in which the mass ratio (C) / {(A)+(B)} was less than 0.005, and Comparative Example 8, in which the content of component (D) was 35% or more, were lacking in stability over time, penetration feeling, and non-stickiness, and were not satisfactory. Furthermore, in Comparative Example 6, in which the content mass ratio (C) / {(A)+(B)} exceeded 0.7, the product lacked stickiness and was not satisfactory. Furthermore, Comparative Example 7, in which the content of component (D) was less than 4%, lacked stability over time and was not satisfactory.

[0064] Example 23: Emulsion (mass%) 1. Hydrogenated soybean phospholipid (Note 14) (ingredient (C)) 1 2. Phytosterol (Note 4) (Note 14) (Component (A)) 0.2 3. 1,3-Butylene glycol (component (D)) 10 4. Glycerin (ingredient (D)) 10 5. Cetostearyl alcohol 0.5 6. Behenyl alcohol 0.5 7. Pentaerythritol tetraethylhexanoate (component (B)) 4 8. Plant-derived squalane (ingredient (B)) 4 9. Triethylhexanoin (ingredient (B)) 2 10. Phytosteryl oleate (melting point: 40°C) (ingredient (B)) 2 11. Methylpolysiloxane (6mm 2 / s(25℃)) 0.7 12. Stearyl glycyrrhetinate (ingredient (A)) 1 13.Fragrance 0.05 14. Remaining purified water 15. Diglycerin (Note 7) (ingredient (E1)) 1 16. Sodium monohydrogen phosphate 0.02 17. Sodium dihydrogen phosphate 0.02 18. Disodium edetate 0.01 19. Polyoxyethylene glycerin (26E.O.) (Note 8) (ingredient (E1)) 3 20. Carboxyvinyl polymer (Note 12) 0.1 21. Acrylic acid-alkyl methacrylate copolymer (Note 13) 0.1 22. Sodium carboxymethylcellulose (Note 9) (ingredient (E2)) 0.05 23. Sodium hydroxide 0.06 24. Absolute Ethanol 6 25. Phenoxyethanol 0.5 26. Sodium Hyaluronate 0.1 27. Hydrolyzed Collagen 0.1 (Note 14) PHYTOCOMPO-PP (manufactured by Nippon Fine Chemicals Co., Ltd.)

[0065] (Manufacturing method) A. Heat ingredients (1) to (4) to 70°C and mix uniformly. B. Dissolve components (5) to (13) by heating to 70°C. C. Heat ingredients (14) to (23) to 70°C. Gradually add B to DA and mix and disperse using a Despa mixer. Gradually add C to ED and mix and disperse using a Despa mixer. The FE was cooled to room temperature, and ingredients (24) to (27) were added and mixed to obtain an emulsion. The emulsion obtained in this manner was excellent in stability over time, penetration, non-stickiness, smooth spreadability, and plumpness of the skin after application. The mass ratio of component (C) to the total content of all components (A) and (B) was (C) / {(A)+(B)}=0.076, the content of component (D) was 20%, and the average particle size was rated A.

[0066] Example 24: Cosmetic serum (mass%) 1. Hydrogenated soybean phospholipid (Note 14) (ingredient (C)) 0.3 2. Hydrogenated soybean lysophospholipid (Note 2) (ingredient (C)) 0.2 3. Phytosterol (Note 4) (Note 14) (Component (A)) 0.05 4. Cholesterol (Note 5) (Component (A)) 0.05 5. 1,3-Butylene glycol (component (D)) 7 6. Glycerin (ingredient (D)) 7 7. Olive fruit oil (ingredient (B)) 1 8. Plant-derived squalane (ingredient (B)) 1 9. Pentaerythritol tetraethylhexanoate (component (B)) 1 10. Mineral oil (ingredient (B)) 1 11. Ethyl oleate (ingredient (B)) 0.3 12. Methylpolysiloxane (6mm 2 / s(25℃)) 0.3 13. Stearyl glycyrrhetinate (ingredient (A)) 0.9 14.Fragrance 0.05 15. Phenoxyethanol 0.5 16.Purified water 25 17. Carboxyvinyl polymer (Note 12) 0.08 18. Acrylic acid-alkyl methacrylate copolymer (Note 13) 0.07 19. Sodium alginate (Note 10) (ingredient (E2)) 0.05 20. Hydroxyethylcellulose (Note 15) (ingredient (E2)) 0.02 21. (PEG-240 / Decyltetradeceth-20 / HDI) Copolymer (Note 16) 0.05 22. Tremella fuciformis polysaccharide (Note 11) (Component (E2)) 0.02 23. Remaining purified water 24. Sodium monohydrogen phosphate 0.02 25. Sodium dihydrogen phosphate 0.02 26. Disodium edetate 0.01 27. Sodium hydroxide 0.05 28. Absolute Ethanol 7 29. Diglycerin (Note 7) (ingredient (E1)) 2 30. Polyglycerin-3 (Note 17) (Component (E1)) 2 31. Cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol (Note 18) 0.1 32. Hydrolyzed Elastin 0.2 33. dl-Camphor 0.01 34.Menthol 0.01 (Note 15) NATROSOL250 HHR (Ashland Specialty Ingredients) (Note 16) ADEKA NOL GT-700 (ADEKA Corporation) (Note 17) PGL-S (manufactured by Sakamoto Pharmaceutical Co., Ltd.) (Note 18) NEOSOLUE-AQULIO (manufactured by Nippon Fine Chemicals Co., Ltd.)

[0067] (Manufacturing method) A. Heat ingredients (1) to (6) to 70°C and mix uniformly. B. Dissolve components (7) to (15) by heating to 70°C. C. Heat component (16) to 70°C. Gradually add B to DA and mix and disperse using a Despa mixer. Gradually add C to ED and mix and disperse using a Despa mixer. The FE was cooled to room temperature and mixed with ingredients (17) to (34) to obtain a cosmetic serum. The beauty serum obtained in this manner was excellent in stability over time, penetration, non-stickiness, smooth spreadability, and plumpness of the skin after application. The mass ratio of component (C) to the total content of all components (A) and (B) was (C) / {(A)+(B)}=0.094, the content of component (D) was 14%, and the average particle size was rated A.

[0068] Example 25: Cream (mass%) 1. Hydrogenated soybean phospholipid (Note 14) (ingredient (C)) 2 2. Phytosterol (Note 4) (Note 14) (Component (A)) 0.5 3. 1,3-Butylene glycol (component (D)) 10 4. Glycerin (ingredient (D)) 10 5. Cetostearyl alcohol 1 6. Behenyl Alcohol 1 7. Pentaerythritol tetraethylhexanoate (Component (B) 5 8. Plant-derived squalane (ingredient (B)) 5 9. Cetyl 2-ethylhexanoate (ingredient (B)) 3 10. Dipentaerythrityl hexa(hydroxystearate / stearic acid / rosinate) (ingredient (B)) 2 11. Hydrogenated oil (melting point: 39°C) (ingredient (B)) 2 12. Methylpolysiloxane (6mm 2 / s(25℃)) 1 13. Stearyl glycyrrhetinate (ingredient (A)) 1.2 14.Fragrance 0.2 15. Remaining purified water 16. Diglycerin (Note 7) (ingredient (E1)) 1 17. Polyoxypropylene diglyceryl ether (9E.O.) (Note 19) (Component (E1)) 0.5 18. Polyoxyethylene methyl glucoside (10E.O.) (Note 20) (Component (E1)) 0.5 19. Sodium monohydrogen phosphate 0.1 20. Sodium dihydrogen phosphate 0.1 21. Edetate disodium 0.05 22. Polyoxyethylene glycerin (26E.O.) (Note 8) (ingredient (E1)) 1 23. Carboxyvinyl polymer 0.3 24. Acrylic acid / alkyl methacrylate copolymer 0.3 25. Xanthan gum 0.1 26. Tremella fuciformis polysaccharide (Note 11) (Component (E2)) 0.05 27. Sodium hydroxide 0.2 28. Absolute Ethanol 7 29. Phenoxyethanol 0.5 30. Sodium Hyaluronate 0.1 31. Hydrolyzed Collagen 0.1 (Note 19) SY-DP9 (manufactured by Sakamoto Pharmaceutical Co., Ltd.) (Note 20) MacbioBride MG-10E (NOF Corporation)

[0069] (Manufacturing method) A. Heat ingredients (1) to (4) to 70°C and mix uniformly. B. Dissolve components (5) to (14) by heating to 70°C. C. Heat ingredients (15) to (27) to 70°C. Gradually add B to DA and mix and disperse using a Despa mixer. Gradually add C to ED and mix and disperse using a Despa mixer. The FE was cooled to room temperature, and ingredients (28) to (31) were added and mixed to obtain an emulsion. The cream obtained in this manner was excellent in stability over time, penetration, non-stickiness, smooth spreadability, and plumpness of the skin after application. The mass ratio of component (C) to the total content of all components (A) and (B) was (C) / {(A)+(B)}=0.107, the content of component (D) was 20%, and the average particle size was rated A.

[0070] Example 26: Daytime serum (mass%) 1. Hydrogenated soybean phospholipid (Note 3) (ingredient (C)) 1 2. Hydrogenated lysophospholipid (Note 2) (ingredient (C)) 0.3 3. Phytoterol (Note 4) (ingredient (A)) 0.5 4. 1,3-Butylene glycol (component (D)) 8 5. Glycerin (ingredient (D)) 8 6. Jojoba seed oil (ingredient (B)) 6 7. Hydrogenated polydecene (molecular weight: 444) (component (B)) 3 8. Ethyl oleate (ingredient (B)) 1 9. Ethylhexyl methoxycinnamate (ingredient (B)) 4 10. Phenoxyethanol 0.5 11. Stearyl glycyrrhetinate (ingredient (A)) 0.8 12. Diethylaminohydroxybenzoylhexyl benzoate (Note 21) (Component (A)) 1 13.Fragrance 0.2 14.Purified water 40 15. 1,3-Butylene glycol (component (D)) 2 16. Carboxyvinyl polymer (Note 12) 0.1 17. Acrylic acid-alkyl methacrylate copolymer (Note 13) 0.1 18. Sodium alginate (Note 10) (ingredient (E2)) 0.05 19. Remaining purified water 20. Sodium monohydrogen phosphate 0.01 21. Sodium dihydrogen phosphate 0.01 22. Edetate disodium 0.01 23. Sodium hydroxide 0.06 (Note 21) Ubinal A PLUS GRANULAR (BASF)

[0071] (Manufacturing method) A. Heat ingredients (1) to (5) to 70°C and mix uniformly. B. Dissolve ingredients (6) to (13) by heating to 70°C. C. Heat ingredients (14) and (15) to 70°C. Gradually add B to DA and mix and disperse using a Despa mixer. Gradually add C to ED and mix and disperse using a Despa mixer. The FE was cooled to room temperature and mixed with ingredients (16) to (23) to obtain a daytime beauty serum. The daytime beauty serum obtained in this manner was excellent in stability over time, penetration, non-stickiness, smooth spreadability, and plumpness of the skin after application. The mass ratio of component (C) to the total content of all components (A) and (B) was (C) / {(A)+(B)}=0.080, the content of component (D) was 18%, and the average particle size was rated A.

Claims

1. The following components (A) to (D): (A) An oil solution having an IOB value of 0.2 to 0.8 and solid at 25°C (B) At least two oils that are liquid at 25°C and have an HSP distance Ra from component (A) of 7.0 or less. (C) Phospholipids (D) Polyhydric alcohol having an IOB value of 1.5 to 5.0: 4% by mass or more and less than 35% by mass wherein the component (B) contains at least a hydrocarbon oil, and the mass ratio (C) / {(A)+(B)} of the content of the component (C) to the total content mass of the components (A) and (B) is 0.005 to 0.

7.

2. Furthermore, component (E) contains one or more selected from the following components (E1) and (E2): the component (E1) is one or more selected from the group consisting of polyglycerin and alkylene oxide derivatives, The component (E2) is one or more selected from the group consisting of cellulose-based water-soluble polysaccharides, alginates, and Tremella fuciformis polysaccharides. The oil-in-water emulsion cosmetic according to claim 1.

3. 3. The oil-in-water emulsion cosmetic according to claim 1, wherein the average particle size of the emulsion droplets is 1 to 15 μm.

4. 3. The oil-in-water emulsion cosmetic according to claim 2, wherein the alkylene oxide derivative of component (E1) is one or more selected from the group consisting of polyoxyethylene glycerin, polyoxypropylene diglyceryl ether, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside, polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether, and polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether.

5. 3. The oil-in-water emulsion cosmetic according to claim 1, wherein the component (B) contains an ester oil that is liquid at 25°C, and the HSP distance Ra between the ester oil and the component (A) is 5.0 or less.

6. 3. The oil-in-water emulsion cosmetic according to claim 1, wherein the component (A) contains at least stearyl glycyrrhetinate.

7. The oil-in-water emulsion cosmetic according to claim 2 or 4, wherein the component (E1) contains polyglycerin and an alkylene oxide derivative.

8. 3. The oil-in-water emulsion cosmetic according to claim 2, wherein the component (E) comprises a component (E1) and a component (E2).

9. A method for producing an oil-in-water emulsion cosmetic, comprising: (1) a step of mixing and dissolving component (C) a phospholipid in component (D) a polyhydric alcohol having an IOB value of 1.5 to 5.0; a step (2) of preparing an intermediate composition by adding thereto at least two kinds of oils: component (A) an oil solution which has an IOB value of 0.2 to 0.8 and is solid at 25°C; and component (B) an oil solution which has an HSP distance Ra from said component (A) of 7.0 or less and is liquid at 25°C; and (3) adding water to the intermediate composition to emulsify it. Including, When the component (A) is cholesterol and / or phytosterol, the cholesterol and / or phytosterol is added in step (1).

10. The method for producing an oil-in-water emulsion cosmetic according to claim 9, wherein the component (B) contains at least a hydrocarbon oil.

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