Oil-based emulsions in water

Abstract

To provide an oil-in-water emulsion composition that can reduce environmental load and has good dispersibility of oil-based particles.SOLUTION: An oil-in-water emulsion composition according to one embodiment of the present invention includes oil-based particles comprising solid oil, liquid oil, and powder, with the oil-based particles dispersed in an aqueous phase. The liquid oil includes polar oil and hydrocarbon oil. The mass ratio between the hydrocarbon oil and the polar oil is 1: 0.8-1: 1.6. The powder is an amino acid, an amino acid derivative, or powder coated with an amino acid or an amino acid derivative.SELECTED DRAWING: None

Description

Technical Field

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

Background Art

[0002] An oil-in-water type emulsion composition in which oil particles are dispersed in an aqueous phase can cover the skin surface with an oil film, prevent the evaporation of moisture, protect the skin from drying, and impart a moisturizing effect and the like to the skin, so it is applied to various cosmetics. In order to obtain the desired quality characteristics, a variety of components are blended in the oil-in-water type emulsion composition.

[0003] For example, Patent Document 1 discloses an oil-in-water type makeup cosmetic containing a fatty acid soap, a silicone oil, a batyl alcohol, and a water-swelling clay mineral. It is also described that the oil-in-water type makeup cosmetic may contain powder components such as talc and mica.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In conventional oil-in-water type emulsion compositions, among the above-mentioned components, in particular, powders such as talc and mica are widely used to impart a smooth feeling in use. However, powders such as talc and mica remain in the natural world without being decomposed when discharged into the natural environment, and there have been reports that some of them are synthetically manufactured and contain impurities such as asbestos. Therefore, as consumers, cosmetics such as talc-free are becoming more popular in order to avoid health concerns. Therefore, when an oil-in-water type emulsion composition was adjusted by removing powders such as talc and mica, a problem occurred in that the dispersibility of oil particles in the aqueous phase decreased.

[0006] One aspect of the present invention aims to provide an oil-in-water emulsion composition that can reduce environmental impact and exhibits excellent dispersibility of oily particles. [Means for solving the problem]

[0007] One aspect of the present invention is an oil-in-water emulsion composition in which oily particles containing a solid oil, a liquid oil, and a powder are dispersed in an aqueous phase, wherein the liquid oil includes a polar oil and a hydrocarbon oil, the mass ratio of the hydrocarbon oil to the polar oil is 1:0.8 to 1:1.6, and the powder is an amino acid, an amino acid derivative, or a powder coated with an amino acid or an amino acid derivative. [Effects of the Invention]

[0008] An oil-in-water emulsion composition according to one aspect of the present invention can reduce environmental impact and exhibits excellent dispersibility of oily particles. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described in detail below. However, the embodiments are not limited to the following description and can be modified as appropriate without departing from the spirit of the invention. Furthermore, in this specification, the "~" indicating a numerical range means that the values ​​before and after it are included as the lower and upper limits, respectively, unless otherwise specified.

[0010] The oil-in-water emulsion composition according to this embodiment contains oily particles, including solid oil, liquid oil, and powder, dispersed in an aqueous phase. Specifically, the oil phase contains solid oil, liquid oil, and powder. The liquid oil includes polar oil and hydrocarbon oil, with a mass ratio of hydrocarbon oil to polar oil of 1:0.8 to 1:1.6. Furthermore, the powder is amino acid, amino acid derivative, or powder coated with amino acid or amino acid derivative. In this specification, "solid oil" means oil that is solid or semi-solid at room temperature (25°C), and "liquid oil" means oil that is liquid at room temperature (25°C).

[0011] Oil-in-water emulsion compositions, because their powders consist of amino acids, amino acid derivatives, or powders coated with amino acids or amino acid derivatives, have oily particles that are more easily biodegraded compared to conventional talc, mica, etc., thus reducing the environmental impact. Furthermore, oil-in-water emulsion compositions exhibit excellent dispersibility of oily particles.

[0012] The average particle size of the oily particles may be between 50 μm and 10 mm. This average particle size allows the oil-in-water emulsion composition to provide the user with a fresh, clean feeling when applied to the skin, which becomes moisturized over time. Furthermore, because the oil-in-water emulsion composition contains oily particles of visible size dispersed in the aqueous phase, it can provide the user with an aesthetically pleasing experience.

[0013] The components constituting the oil-in-water emulsion composition of this embodiment will be described in detail below.

[0014] The polar oil contained in the liquid oil can be any polar oil that is commonly used in cosmetics, etc., and is not particularly limited. Examples of polar oils include diisopropyl sebacate, pentaerythrityl tetraethylhexanoate, cetyl ethylhexanoate, jojoba oil, phytosteryl / octyldodecyl lauroyl glutamate, triisostearin, glyceryl diisostearate, triethylhexanoin, phytosteryl / behenyl dimer dilinoleate, phytosteryl / isostearyl / cetyl / stearyl / isostearyl / cetyl / stearyl / behenyl dimer dilinoleate, isopropyl palmitate, phytosteryl macadamia nut fatty acid, pentaerythrityl tetra(behenic acid / benzoic acid / ethylhexanoic acid), ethylhexyl palmitate, myristyl myristate, isopropyl myristate, tripropylene glycol dipivalate, and isodecyl neopentanoate.

[0015] Examples of hydrocarbon oils include squalane, hydrogenated polyisobutene, hydrogenated polydecene, and isohexadecane. Squalane includes naturally derived squalanes such as animal squalane, plant squalane, and sugar squalane, as well as synthetic squalane.

[0016] Hydrocarbon oils preferably have a branched structure. The number of carbon atoms in the branched hydrocarbon oil is preferably 10 to 40. Having 10 to 40 carbon atoms in the branched hydrocarbon oil allows for good dissolution of naturally derived solid oils in the oil phase. Furthermore, it improves the strength of the oily particles and allows for stable dispersion of the oily particles in the aqueous phase. In addition, when applied to the skin, the oil-in-water emulsion composition provides the user with a pleasant, skin-friendly feel.

[0017] The hydrocarbon oil is preferably squalane, and more preferably naturally derived squalane. Because the hydrocarbon oil is naturally derived squalane, the oily particles are more easily biodegraded compared to synthetic hydrocarbons, thus the oil-in-water emulsion composition can further reduce its environmental impact. Furthermore, the oil-in-water emulsion composition exhibits superior dispersibility of oily particles.

[0018] The hydrocarbon oil content is preferably 0.01% to 10% by mass, more preferably 0.5% to 7.5% by mass, and even more preferably 1% to 5% by mass, relative to the oil-in-water emulsion composition. When the branched hydrocarbon oil content is 0.01% to 10% by mass relative to the oil-in-water emulsion composition, the oil-in-water emulsion composition exhibits excellent particle-forming properties of oily particles. Excellent particle-forming properties mean that the particle shape is closer to a sphere.

[0019] The mass ratio of hydrocarbon oil to polar oil is preferably 1:0.5 to 1:3, and more preferably 1:0.75 to 1:2. When the mass ratio of hydrocarbon oil to polar oil is 1:0.8 to 1:2, the oil-in-water emulsion composition exhibits excellent particle formation of oily particles and superior dispersibility of oily particles.

[0020] The liquid oil may contain polar oils and hydrocarbon oils, as well as trace amounts of silicone oil. Examples of silicone oils include linear silicones such as dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane (phenylmethicone), and methylhydrogenpolysiloxane; cyclic silicones such as decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane; amino-modified silicone oils, polyether-modified silicone oils, carboxy-modified silicone oils, alkyl-modified silicone oils, ammonium salt-modified silicone oils, and fluorine-modified silicone oils.

[0021] If the liquid oil contains a small amount of silicone oil, the silicone oil content is preferably 5% by mass or less, more preferably 3% by mass or less, even more preferably 2% by mass or less, even more preferably 1% by mass or less, and even more preferably 0.1% by mass or less, relative to the oil-in-water emulsion composition. It is particularly preferable that the liquid oil does not contain silicone oil.

[0022] Furthermore, the silicone oil content is preferably 30% by mass or less, more preferably 20% by mass or less, and even more preferably 10% by mass or less, relative to the total amount of solid oil and liquid oil, and it is particularly preferable that the liquid oil does not contain silicone oil.

[0023] In conventional water-in-oil emulsified compositions, silicone oil is widely used to impart a smooth feel, similar to powders such as talc and mica. However, since silicone oil remains in the natural environment without being decomposed when discharged into the natural environment, there are concerns about its impact on the environment, and the demand for silicone-free water-in-oil emulsified compositions is increasing. The water-in-oil emulsified composition of the present embodiment does not contain silicone oil in the liquid oil component, so the oil particles are more easily biodegradable, and thus the environmental load can be further reduced.

[0024] Examples of the solid oil component include solid paraffin, microcrystalline wax, ceresin, beeswax, carnauba wax, polyethylene wax, silicone wax, higher alcohols (e.g., behenyl alcohol, stearyl alcohol, cetyl alcohol, etc.), batyl alcohol, carnauba wax, beeswax, candelilla wax, rice bran wax, jojoba wax, lanolin, shellac wax, whale wax, candelilla wax, higher fatty acids (e.g., myristic acid, palmitic acid, stearic acid, behenic acid, 12-hydroxystearic acid, etc.), ester oils (e.g., myristyl myristate, etc.), cocoa butter, hydrogenated castor oil, hardened oil, hydrogenated palm oil, palm oil, hardened coconut oil, polyethylene, petrolatum, various hydrogenated animal and vegetable oils and fats, fatty acid monocarboxylic acid lanolin alcohol esters, and the like.

[0025] Among the above, the solid oil component preferably consists of plant-derived waxes having a melting point of 50°C or higher. Examples of plant-derived waxes having a melting point of 50°C or higher include carnauba wax (melting point: 82 to 86°C), candelilla wax (melting point: 68 to 72°C), rice bran wax (melting point: 70 to 83°C), and the like. These solid oil components may be used alone or in combination of two or more. The solid oil component may be beeswax (melting point: 62 to 65°C).

[0026] Because the solid oil component consists of plant-derived waxes with a melting point of 50°C or higher, the oily particles are more easily biodegraded compared to synthetic waxes, thus the oil-in-water emulsion composition can further reduce its environmental impact. In addition, a film made of plant-derived waxes is formed on the outside of the oily particles, which can suppress adhesion between the oily particles. Therefore, the oil-in-water emulsion composition is superior in both particle-forming properties and dispersibility of oily particles. It is more preferable that the melting point of the plant-derived waxes is 60°C to 85°C. When the melting point of the plant-derived waxes is 60°C to 85°C, the oil-in-water emulsion composition is even superior in both particle-forming properties and dispersibility of oily particles.

[0027] The solid oil component is preferably candelilla wax or carnauba wax. The presence of candelilla wax or carnauba wax in the solid oil component further enhances the particle-forming properties of the oily particles and the dispersibility of the oily particles in the oil-in-water emulsion composition.

[0028] The solid oil content is preferably 0.01% to 5% by mass, more preferably 0.1% to 4% by mass, and even more preferably 0.5% to 3% by mass, relative to the oil-in-water emulsion composition. When the solid oil content is 0.01% to 5% by mass, the oil-in-water emulsion composition exhibits superior particle-forming properties of oily particles and superior dispersibility of oily particles.

[0029] If the powder is an amino acid, examples of amino acids include glutamic acid. If the powder is an amino acid derivative, examples of amino acid derivatives include amino acid-based surfactants such as lauroyl lysine, potassium cocoyl glutamate, and sodium cocoyl glycinate. If the powder is a powder coated with an amino acid or an amino acid derivative, examples of such powders include powders surface-treated with amino acid derivatives such as sodium dilauroyl glutamate lysine coated iron oxide (red), sodium dilauroyl glutamate lysine coated titanium dioxide, disodium stearoyl glutamate, magnesium palmitoyl glutamate, and disodium cocoyl glutamate.

[0030] The amino acid derivative is preferably lauroyl lysine. By using lauroyl lysine as the amino acid derivative, the oily particles of the oil-in-water emulsion composition can reduce their environmental impact. Furthermore, the oil-in-water emulsion composition exhibits superior particle-forming properties and superior dispersibility of oily particles. Additionally, because lauroyl lysine has a relatively low coefficient of friction compared to the other powders mentioned above, the oil-in-water emulsion composition can provide the user with a smooth and silky feel when applied to the skin.

[0031] The average primary particle size of the powder (amino acids, amino acid derivatives, or powders coated with amino acids or amino acid derivatives) is preferably 0.01 μm to 15 μm, and more preferably 0.05 μm to 12 μm. When the average primary particle size of the amino acids or amino acid derivatives is 0.1 μm to 10 μm, the oil-in-water emulsion composition exhibits superior particle-forming properties of oily particles and superior dispersibility of oily particles.

[0032] The powder content is preferably 0.0001% to 0.5% by mass, more preferably 0.01% to 0.5% by mass, and even more preferably 0.1% to 0.5% by mass, relative to the oil-in-water emulsion composition. When the powder content is 0.0001% to 0.5% by mass, the oil-in-water emulsion composition exhibits excellent particle formation of oily particles and superior dispersibility of oily particles. Furthermore, when the powder content is 0.01% to 0.5% by mass, the oil-in-water emulsion composition exhibits excellent particle formation of oily particles and even superior dispersibility of oily particles.

[0033] The aqueous phase contains a general aqueous medium and serves as a dispersion medium for oily particles. Examples of aqueous mediums include water and ethanol. The aqueous medium may be used alone or in combination of two or more types.

[0034] The aqueous medium content is preferably 50% to 99% by mass, more preferably 60% to 98% by mass, and even more preferably 70% to 95% by mass, relative to the oil-in-water emulsion composition.

[0035] The oily particles of the oil-in-water emulsion composition may further contain fragrance. Specifically, the polar oil in the liquid oil component constituting the oily particles may contain fragrance. By containing fragrance, the oil-in-water emulsion composition can exert the mental / psychological effects or physiological effects on the body that the fragrance has. Examples of fragrances include essential oils such as eucalyptus oil and olibanum oil.

[0036] The fragrance content is preferably 0.05% to 0.45% by mass, more preferably 0.05% to 0.3% by mass, and even more preferably 0.05% to 0.2% by mass, relative to the oil-in-water emulsion composition. When the fragrance content is 0.05% to 0.45% by mass relative to the oil-in-water emulsion composition, the oil-in-water emulsion composition exhibits excellent particle formation of oily particles and excellent dispersibility of oily particles, even when containing fragrance.

[0037] In addition to the above components, the oil-in-water emulsion composition may also contain other components that can be incorporated into topical skin preparations such as cosmetics, to the extent that they do not impair the effects of the present invention.

[0038] Other components that can be incorporated into the oil-in-water emulsion composition include, but are not limited to, water-soluble thickeners, oil-soluble thickeners, water-soluble agents such as arbutin, ascorbic acid glucoside, tranexamic acid, and 4-methoxysalicylate, humectants such as glycerin, dipropylene glycol, 1,3-butylene glycol, and propanediol, water-soluble UV absorbers such as dimorpholinopyridazinone, chelating agents such as sodium edetate and potassium hydroxide, pH adjusters such as citric acid and sodium citrate, preservatives such as parabens and phenoxyethanol, dyes, and surfactants.

[0039] The water-soluble thickener is not particularly limited, but examples include plant-derived polymers such as gum arabic, tragacanth gum, galactan, carob gum, guar gum, karaya gum, carrageenan, pectin, agar, quince seed (quince), and algae colloid (brown algae extract); microbial polymers such as dextran, succinoglucan, and pullulan; animal-derived polymers such as collagen, casein, albumin, and gelatin; cellulose-based polymers such as methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, sodium cellulose sulfate, hydroxypropylcellulose, sodium carboxymethylcellulose, crystalline cellulose, and cellulose powder. Examples include alginate polymers such as sodium ginate and propylene glycol alginate; vinyl polymers such as polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, carboxyvinyl polymer, and alkyl-modified carboxyvinyl polymer; polyoxyethylene polymers, polyoxyethylene polyoxypropylene copolymer polymers; acrylic polymers such as sodium polyacrylate, polyethyl acrylate, polyacrylamide, and (acryloyldimethyltaurate ammonium / VP) copolymer; and inorganic water-soluble polymers such as polyethyleneimine, cationic polymer, bentonite, aluminum magnesium silicate, laponite, hectorite, and anhydrous silicic acid.

[0040] Alkyl-modified carboxyvinyl polymers are particularly suitable as water-soluble thickeners because, based on their surfactant properties, they suppress the aggregation and coalescence of oily particles. Alkyl-modified carboxyvinyl polymers are also known as alkyl acrylate / alkyl methacrylate crosspolymers (acrylates / alkyl acrylate (C10-30) crosspolymers) and are commercially available under trade names such as CARBOPOL® 1342, PEMULEN® TR-1, and PEMULEN® TR-2 (manufactured by BF Goodrich).

[0041] Oil-soluble thickeners can be used to adjust the hardness to an appropriate level by reducing the solidifying power of the solid oil components that make up the oily particles. Examples of oil-soluble thickeners are not limited to those mentioned above, but include dextrin fatty acid esters, metal soaps, lipophilic bentonite, sucrose fatty acid esters, and benzylidene derivatives of sorbitol.

[0042] Examples of dextrin fatty acid esters include dextrin palmitate, dextrin oleate, and dextrin stearate.

[0043] Examples of metal soaps include aluminum stearate, magnesium stearate, and zinc myristate, which retain hydroxyl groups.

[0044] Examples of lipophilic bentonites include dimethylbenzyldodecylammonium montmorillonite and dimethyldioctadecylammonium montmorillonite.

[0045] Examples of sucrose fatty acid esters include those in which three or fewer of the eight hydroxyl groups are esterified with higher fatty acids, and these higher fatty acids are stearic acid and palmitic acid.

[0046] Examples of benzylidene derivatives of sorbitol include monobenzylidene sorbitol and dibenzylidene sorbitol.

[0047] Among these, dextrin palmitate is particularly preferred as an oil-soluble thickener from the viewpoint of stability and usability. The dextrin fatty acid ester is not particularly limited, but commercially available products such as Leopal® KL and Leopal® KE (manufactured by Chiba Flour Milling Co., Ltd.) can be used.

[0048] Oil-in-water emulsion compositions can be prepared, for example, by the following method. First, the aqueous phase components are mixed and heated to a temperature above the melting point of the solid oil component to be added. The oil phase components (including solid oil, liquid oil, and powder) heated and mixed to the same temperature are then added to the aqueous phase components under stirring. Stirring can be performed using a propeller or paddle mixer with a rotation speed of 10 to 1500 rpm, preferably 20 to 300 rpm. Note that using a homomixer is undesirable because it will cause the mixture to become too fine. The mixture can then be prepared by cooling while stirring.

[0049] The oil-in-water emulsion composition produced in this manner consists of oily particles with an average particle size of 50 μm to 10 mm dispersed in the aqueous phase. The oily particles in this embodiment are thought to have a capsule structure in which the inner layer consists substantially of powder and liquid oil, and is surrounded by a solid oil (outer layer). Furthermore, the crystallization of the solid oil forming the outer layer gives it a moderate hardness, resulting in a unique feel when used.

[0050] The composition of the present invention forms oily particles with the above structure without the use of a surfactant, but it is clearly distinguished from Pickering emulsions in which powder exists at the oil-water interface, in that the powder is present inside (inner layer) of the oily particles and solid oil is present at the interface between the aqueous phase and the oil phase.

[0051] The oil-in-water emulsion composition of the present invention is suitable for use as a base for cosmetics. Examples of cosmetics using this base include aqueous cosmetics, gel cosmetics, and emulsified cosmetics. Specifically, it can be used as a cosmetic for the face, body, or hair, such as a lotion, gel, emulsion, cream, or mask. [Examples]

[0052] The embodiments will be described in more detail below with reference to examples and comparative examples, but the embodiments are not limited to these examples and comparative examples.

[0053] Oil-in-water emulsion compositions were prepared using the methods described below, with the compositions shown in Tables 1 to 4. Each of the resulting oil-in-water emulsion compositions was then evaluated using the methods described below.

[0054] <Preparation of oil-in-water emulsion composition> The aqueous phase components were mixed according to the compositions shown in Tables 1 to 4, heated to a temperature above the melting point of the solid oil component to be added, and the oil phase components (including solid oil, liquid oil, and powder) heated and mixed at the same temperature were added to the aqueous phase components under stirring. Then, each oil-in-water emulsion composition was obtained by cooling while stirring.

[0055] Each prepared oil-in-water emulsion composition was evaluated for its ability to form oily particles, disperse, and hardness.

[0056] <Evaluation of particle formation ability> The shape of the oily particles contained in the obtained oil-in-water emulsion composition was observed under a microscope and evaluated based on the following evaluation criteria. A rating of B or higher was considered acceptable, and the evaluation results are shown in Tables 1 to 4. [Evaluation Criteria] A: All oily particles in the field of view were spherical. B: Some irregularly shaped oily particles were observed in the field of view. C: In the field of view, the majority of oily particles had an irregular shape. <Evaluation of variance> The obtained oil-in-water emulsion composition was placed in a container and left at room temperature for one week. The dispersibility of oily particles was then visually inspected when the container was shaken by hand, and evaluated according to the following evaluation criteria. A score of B or higher was considered acceptable, and the evaluation results are shown in Tables 1 to 4. [Evaluation Criteria] A: The oily particles dispersed uniformly very quickly. B: Some oily particles had aggregated, but they dispersed uniformly after more vigorous stirring. C: Some oily particles aggregated and did not disperse even with more vigorous stirring.

[0057] <Hardness Evaluation> The obtained oil-in-water emulsion compositions were subjected to texture profile analysis using the texture tester "TEX-100N" (manufactured by Nippon Keisoku System Co., Ltd.) to measure the hardness of the oily particles, and were evaluated according to the following evaluation criteria. A score of B or higher was considered acceptable, and the evaluation results are shown in Tables 3 and 4. [Evaluation Criteria] A: 0.3N or more and less than 0.5N B: 0.1N or more and less than 0.3N, or 0.5N or more and less than 0.7N C: 0N or more but less than 0.1N, or 0.7N or more but less than 1.0N

[0058] [Table 1]

[0059] [Table 2]

[0060] [Table 3]

[0061] [Table 4]

[0062] As shown in Tables 1-4, the oil-in-water emulsion compositions of Examples 1-20 showed excellent dispersibility of oil particles, with the oil particles uniformly dispersed in the aqueous phase. Furthermore, the oil-in-water emulsion compositions of Examples 1-5 and 7-20 were confirmed to have no practical problems regarding the formation of oil particles. The oil-in-water emulsion composition of Example 6 showed excellent dispersibility of oil particles, but concerns were observed regarding the formation of oil particles for practical use. On the other hand, the oil-in-water emulsion composition of Comparative Example 1, which did not contain amino acids, amino acid derivatives, or powders coated with amino acids or amino acid derivatives in the oil particles, had no practical problems regarding the formation of oil particles, but some oil particles aggregated and did not disperse even with strong stirring.

[0063] As described above, embodiments have been explained, but these embodiments are presented as examples only, and the present invention is not limited by these embodiments. The above embodiments can be implemented in various other forms, and various combinations, omissions, substitutions, and modifications are possible without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents.

Claims

1. An oil-in-water emulsion composition in which oily particles containing solid oil, liquid oil, and powder are dispersed in an aqueous phase, The solid oil component is a plant-derived wax having a melting point of 50°C or higher. The aforementioned liquid oil component includes polar oil and hydrocarbon oil, but does not include silicone oil. The mass ratio of the hydrocarbon oil to the polar oil is 1:0.8 to 1:1.

6. The powder is an amino acid, an amino acid derivative, or a powder coated with an amino acid or an amino acid derivative, and is an oil-in-water emulsion composition that does not contain talc or mica.

2. The oil-in-water emulsion composition according to claim 1, wherein the amino acid derivative is lauroyl lysine.

3. The oil-in-water emulsion composition according to claim 1 or 2, wherein the content of the powder is 0.01% to 0.5% by mass relative to the oil-in-water emulsion composition.

4. The oil-in-water emulsion composition according to claim 1 or 2, wherein the hydrocarbon oil is squalane.

5. The oil-in-water emulsion composition according to claim 1 or 2, wherein the solid oil component comprises one or more selected from candelilla wax and carnauba wax.

6. The oily particles further contain fragrance, The oil-in-water emulsion composition according to claim 1 or 2, wherein the content of the fragrance is 0.05% by mass to 0.45% by mass relative to the oil-in-water emulsion composition.

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