An emulsified cosmetic composition containing a self-emulsifying inducer and a self-emulsifying stabilizer

Abstract

The present invention relates to an emulsion cosmetic composition having excellent stability.

Description

Technical Field

[0001] The present invention relates to an emulsion cosmetic composition having excellent stability.

Background Art

[0002] Various types of emulsified cosmetics are used to supply various active ingredients to the skin. Emulsified cosmetics are generally classified into an oil-in-water (O / W) type dosage form and a water-in-oil (W / O) type dosage form. Both of these contain an oil phase and a water phase and have the advantage of providing a softening effect and a moisturizing effect. Various techniques have been developed to improve physical properties such as the dosage form stability of O / W type or W / O type cosmetic compositions. As an example, Korean Patent Publication No. 10-2011-0035516 discloses an O / W type cosmetic composition containing a branched polymer having a lipophilic alkyl chain as a side chain and an anionic surfactant. However, conventional O / W type or W / O type dosage forms have problems such as easy separation of the dosage form or precipitation of active ingredients within the dosage form when unstable components among the active ingredients are carried.

[0003] In order to enhance the stability of such an emulsified cosmetic composition, a high content of surfactant is usually used, but this has a problem of being contrary to the recent consumer preference considering environmental affinity and skin safety. Therefore, there is a demand for the development of an emulsion cosmetic composition that does not contain a surfactant and has excellent stability of the interfacial film between the water phase and the oil phase.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention provides an emulsion cosmetic composition that does not contain a surfactant and exhibits excellent stability.

Means for Solving the Problems

[0006] The emulsion cosmetic composition of the present invention includes an aqueous phase and an oil phase containing a self-emulsifying inducer and a self-emulsifying stabilizer.

Effects of the Invention

[0007] The present invention provides an emulsion cosmetic composition that has high stability of the interfacial film between the aqueous phase and the oil phase and exhibits excellent stability even without containing a surfactant. Since the cosmetic composition according to the present invention does not contain a surfactant, it has low skin irritation, is environmentally friendly, has excellent spreadability, wideness, and usability in an emulsion dosage form, and at the same time has excellent makeup persistence and water resistance. In addition, the cosmetic composition of the present invention is suitable for stabilizing active ingredients such as vitamins within the dosage form.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Modes for Carrying Out the Invention

[0009] Hereinafter, the present invention will be described in detail. However, it is not limited only by the following content, and each component can be variously modified or selectively mixed as necessary. Therefore, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present invention.

[0010] The present invention relates to an emulsion cosmetic composition and includes an aqueous phase and an oil phase containing a self-emulsifying inducer and a self-emulsifying stabilizer.

[0011] aqueous phase The aqueous phase of the emulsion cosmetic composition according to the present invention contains a self-emulsifying inducer and a self-emulsifying stabilizer. The aqueous phase may further contain a pH buffer, a thickener, an active ingredient, and additives commonly used in the art.

[0012] The present invention can provide an emulsified cosmetic composition having excellent stability without using a surfactant by using a self-emulsifying inducer that induces self-emulsification to ensure the stability of the dosage form. The self-emulsifying inducer is a polymer having a hydrophobic alkyl chain. For example, Acrylates / Palmeth-25 Copolymer, Acrylates / Aminoacrylates / C10-30 Alkyl PEG-20 Itaconate Copolymer, Acrylates / Beheneth-25 Methacrylate Copolymer, Acrylates / Beheneth-25 Methacrylate / Steareth-30 Methacrylate Copolymer, Acrylates / C10-30 Alkyl Acrylate Crosspolymer, Acrylates / C10-30 Alkyl Methacrylate Copolymer, Acrylates / C12-13 Alkyl Methacrylates / Methoxyethyl Acrylate Crosspolymer, Acrylates / C12-22 Alkyl Methacrylate Copolymer, Acrylates / C26-29 Olefin Copolymer, Acrylates / C5-8 Alkyl AcrylateCopolymer), Acrylates / Ceteareth-20 Methacrylate Crosspolymer, Acrylates / Ceteareth-25 Methacrylate / Methacrylamide Crosspolymer, Acrylates / Ceteth-20 Itaconate Copolymer, Acrylates / Ceteth-20 Methacrylate Copolymer, Acrylates / Laureth-25 Methacrylate Copolymer, Acrylates / Palmeth-25 Acrylate Copolymer, Acrylates / Palmeth-25 Itaconate Copolymer, Acrylates / Steareth-20 Itaconate Copolymer, Acrylates / Steareth-20 Methacrylate Copolymer, Acrylates / Steareth-20 Methacrylate Crosspolymer, Acrylates / Steareth-50 Acrylate Copolymer, Acrylates / Steareth-30 Methacrylate Copolymer, Acrylic Acid / C12-22 Alkyl AcrylateCopolymer), Acrylates / Beheneth-25 Methacrylate / HEMA Crosspolymer, Ammonium Acryloyldimethyltaurate / Beheneth-25 Methacrylate Crosspolymer, Ammonium Acryloyldimethyltaurate / Laureth-7 Methacrylate Copolymer, Ammonium Acryloyldimethyltaurate / Steareth-8 Methacrylate Copolymer, AMP-Acrylate / C1-18 Alkyl Acrylates / C1-8 Alkyl Acrylamide Copolymer, AMP-Acrylates / C1-18 Alkyl Acrylate / C1-8 Alkyl Acrylamide Copolymer, AMP-Acrylates / C1-18 Alkyl Acrylates / C1-8 Alkyl Acrylamide / Hydroxyethylacrylate Copolymer, Butyl Acrylate / C6-14 Perfluoroalkylethyl Acrylate / Mercaptopropyl DimethiconeCopolymer), C12 - 22 Alkyl Acrylate / Hydroxyethylacrylate Copolymer, C18 - 22 Alkyl PEG - 25 Methacrylate / Diethylaminoethyl Methacrylate Copolymer, C20 - 24 Olefin / Oleyl Alcohol Copolymer, C26 - 28 Alkyldimethylsilyl Polypropylsilsesquioxane, C30 - 38 Olefin / Isopropyl Maleate / MA Copolymer, C4 - 6 Olefin / Styrene Copolymer, C6 - 14 Perfluoroalkylethyl Acrylate / Hema Copolymer, C8 - 22 Alkyl Acrylates / Butyl Dimethicone Methacrylate Copolymer, C8 - 22 Alkyl Acrylates / Methacrylic Acid Crosspolymer, Potassium Acrylates / C10 - 30 Alkyl Acrylate Crosspolymer, Sodium Acrylates / Beheneth - 25 Methacrylate Crosspolymer and Sodium Acrylates / C10 - 30 Alkyl Acrylate CrosspolymerIt may contain, but is not limited to, one or more selected from the group consisting of Acrylate / C10-30 Alkyl Acrylate Crosspolymer. As an example, the self-emulsifying inducer may contain one or more selected from the group consisting of Acrylates / C10-30 Alkyl Acrylate Crosspolymer, Ammonium Acryloyldimethyltaurate / Beheneth-25 Methacrylate Crosspolymer, Acrylates / Palmeth-25 Acrylate Copolymer, and Acrylates / Beheneth-25 Methacrylate Copolymer.

[0013] The self-emulsifying inducer may be contained in an amount of 0.05 to 5% by weight based on the total weight of the cosmetic composition. If the content of the self-emulsifying inducer is less than the above range, it may not be emulsified or may not be maintained even if emulsified. If it exceeds the above range, the viscosity may become very high and emulsification may not be possible, or even if emulsified, it may be difficult to use due to stickiness.

[0014] The present invention can provide an emulsified cosmetic composition having excellent stability without using a surfactant by using a self-emulsifying stabilizer for stabilizing a self-emulsified dosage form. The self-emulsifying stabilizer is an amphiphilic substance and may include, for example, a diol compound having two hydroxy groups or a mixture thereof.For example, the self-emulsifying stabilizer may include, but is not limited to, one or more selected from the group consisting of 1,2-butanediol, 1,2-hexanediol, 1,2-pentanediol, 1,2-octanediol, 3-(2-ethylhexyloxy)propan-1,2-diol, 1,2-dodecanediol, propane-1,2-diol, 1,2-decanediol, 1,2-tetradecanediol, 1,2-hexadecanediol, 1,2-octadecanediol, 1,2-eicosanediol, 1,2-hexacosanediol, 2,3-butanediol, 2-methyl-1,3-propanediol, 1,2-octacosanediol, 1,5-pentanediol, 1,6-hexanediol, 1,9-nonanediol, 1,10-decanediol, 1,12-dodecanediol, 1,2-propanediol, 1,7-heptanediol, 1,8-octanediol, 1,14-tetradecanediol, 1,16-hexadecanediol, and 12-hydroxystearyl alcohol.As an example, the self-emulsifying stabilizer may contain one or more selected from the group consisting of 3-(2-ethylhexyl)oxyl propane-1,2-diol, 2,3-butanediol, 1,2-octanediol, 1,2-hexanediol, and 1,2-pentanediol.

[0015] The self-emulsifying stabilizer may be contained in an amount of 0.01 to 5% by weight based on the total weight of the cosmetic composition. If the content of the self-emulsifying stabilizer is less than the above range, self-emulsifying particles may not be maintained, and if it exceeds the above range, it may cause skin irritation.

[0016] The self-emulsifying inducer and the self-emulsifying stabilizer may be mixed at a weight ratio of 1:0.001 to 100. If the mixing ratio of the self-emulsifying stabilizer to the self-emulsifying inducer is less than the above range, self-emulsification may not occur or the emulsification may not be maintained, and if it exceeds the above range, it may cause skin irritation or the self-emulsification may not be maintained.

[0017] The aqueous phase may further contain a pH buffer. The pH buffer may include, but is not limited to, one or more selected from the group consisting of Malic Acid, Adipic Acid, Benzoic Acid, Lactic Acid, Citric Acid, Sodium hydroxide, Hydrochloric acid, Potassium chloride, Potassium hydroxide, Glycine, Potassium hydrogen phthalate, Sodium citrate, Sodium acetate, Acetic acid, Fumaric Acid, Succinic Acid, Phosphoric Acid, Tartaric Acid, Ammonium Bicarbonate, Ammonium Carbonate, Ammonium Phosphate, Potassium Bicarbonate, Potassium Carbonate, Potassium Borate, Potassium Citrate, Potassium Phosphate, Sodium Bicarbonate, Sodium Carbonate, Sodium Succinate, and Sodium Fumarate. As an example, the pH buffer may include one or more selected from the group consisting of Citric Acid, Sodium citrate, Sodium hydroxide, and Potassium hydroxide.

[0018] The pH buffer may be contained in an amount of 0.01 to 5% by weight based on the total weight of the cosmetic composition. If the content of the pH buffer is less than the above range, it may be difficult to stabilize active ingredients such as retinol. If it exceeds the above range, it may cause skin irritation or emulsion breakage.

[0019] The aqueous phase may further contain a polyol. The polyol plays a role in softening the skin and imparting a moisturizing feeling. For example, it may include one or more selected from the group consisting of polyethylene glycol, glycerin, dipropylene glycol, butylene glycol, pentylene glycol, methylpropanediol, sorbitol, diglycerin, erythritol, pentaerythritol, polybutylene glycol-10, polyglycerin-3, polyglycerin-4, polyglycerin-6, polyglycerin-10, polyglycerin-20, polyglycerin-40, sorbesol-5, sorbesol-6, sorbesol-20, sorbesol-30, sorbesol-40, inositol, maltitol, mannan, mannitol, mannose, lactitol, lactose, dihydroxypropyl PG-glucoside, dithiodiethanol, fructose, glucamine, methylglucamine, glucose, 1,2,6-hexanetriol, methylglucose-10, methylglucose-20, ozonized glycerin, phytantriol, thioglycerin, threitol, trimethylolpropane, and xylitol, but is not limited thereto.

[0020] The polyol may be contained in an amount of 1 to 20% by weight based on the total weight of the cosmetic composition. If the content of the polyol is less than the above range, the moisturizing feeling may decrease. If it exceeds the above range, stickiness or a feeling of irritation may occur.

[0021] The aqueous phase may further contain a thickener. The thickener plays a role in maintaining the stability (sedimentation / floating) of the particles in the aqueous phase. The thickener may include one or more of acrylic acid-based polymers and polysaccharide-based polymers.

[0022] The acrylic polymer includes an acrylic acid polymer or an acrylic acid derivative polymer, and may include, for example, one or more selected from the group consisting of vinylpyrrolidone-acrylic acid copolymer, Methyl Methacrylate-acrylic acid copolymer, Methyl Methacrylate-methacrylic acid copolymer, carbomer, sodium polyacrylate, polyacrylic acid (PAA), and polymethacrylic acid, but is not limited thereto.

[0023] The polysaccharide polymer includes a polysaccharide or a polysaccharide derivative polymer, and may include, for example, one or more selected from the group consisting of sodium alginate, carrageenan, cellulose sulfate (cellulose sulfate), dextrin sulfate (dextrin sulfate), carboxymethyl cellulose, xanthan gum, locust bean gum, guar gum, carrageenan, sodium hyaluronate, and sulfate group-containing glycosaminoglycan (sulfate group-containing glycosaminoglycan), but is not limited thereto.

[0024] The thickener may be contained in an amount of 0.05 to 10% by weight, for example, 0.1 to 5% by weight based on the total weight of the cosmetic composition. If the content of the thickener is less than the above range, the viscosity is low, so the stability of the particles may be poor. If it exceeds the above range, the viscosity is high, so the spreadability, stickiness, etc. may deteriorate the usability, and the production of the emulsion may be difficult.

[0025] The aqueous phase may further contain an active ingredient. The active ingredient is a hydrophilic material with excellent miscibility in purified water. As an example, it may include, but is not limited to, one or more selected from the group consisting of Ascorbic acid, niacinamide, adenosine, hyaluronic acid, Azelaic acid, Kojic acid, Glycolic acid, Arbutin, peptides, Zinc Sulfate, Glutathione, Ferulic Acid, Quercetin, Tocopherol, gallic acid, catechin, caffeic acid, rosmarinic acid, and Kojic Acid.

[0026] The active ingredient may be contained in an amount of 0.01 to 20% by weight based on the total weight of the cosmetic composition. If the content of the active ingredient is less than the above range, it is difficult to expect an effect on the skin, and if it exceeds the above range, it may cause skin irritation.

[0027] The aqueous phase contains purified water in an amount that satisfies 100% by weight of the total weight of the cosmetic composition. As an example, the purified water may be contained in an amount of 5 to 95% by weight based on the total weight of the cosmetic composition.

[0028] oil phase The oil phase of the emulsion cosmetic composition according to the present invention contains oil. As the oil, oils used in the art can be used without particular limitation. For example, as the oil, mineral oil, isocetane, isostearyl isostearate, isopropyl myristate, caprylic / capric triglyceride, diisopropyl adipate, isononyl isononanoate, isodecyl neopentanoate, cetyl ethylhexanoate, octyldodecyl myristate, di-C12-13 alkyl maleate, pentaerythrityl tetraisostearate, pentaerythrityl tetraethylhexanoate, diisostearyl maleate, isopropyl palmitate, C12-15 alkyl benzoate, dicaprylic carbonate, dicaprylic ether, 2-octyldodecanol, dimethicone, lauryldimethicone, cyclopentasiloxane, cyclohexasiloxane, trisiloxane, methyltrimethicone, amodimethicone, phenyltrimethicone, phenylmethylsilicone, dimethicone copolyol, dimethicone copolyol acetate, silicone glycol copolymer, dimethiconol, methylpolysiloxane, methylphenylpolysiloxane, dimethicone copolyol methyl ether, methylcyclopolysiloxane, dimethylpolysiloxane, hexamethyldisiloxane, aminopropyldimethicone, caprylyl methylpolysiloxane, and simethicone may be included, but are not limited thereto, and may include one or more selected from the group consisting of these.

[0029] The oil may be contained in an amount of 1 to 80% by weight based on the total weight of the cosmetic composition. If the content of the oil phase is less than the above range, an emulsified dosage form may not be formed, and if it exceeds the above range, emulsified particles may not be formed.

[0030] The oil phase may further contain a self-emulsifying stabilizer. By using a self-emulsifying stabilizer that stabilizes the self-emulsified dosage form, an emulsion cosmetic composition having excellent stability can be provided without using a surfactant. As the self-emulsifying stabilizer, the substances exemplified as the self-emulsifying stabilizer contained in the aqueous phase can be used.

[0031] The self-emulsifying stabilizer may be contained in an amount of 0.01 to 2.5% by weight, for example, 0.1 to 1% by weight based on the total weight of the cosmetic composition. If the content of the self-emulsifying stabilizer is less than the above range, there is a risk that the self-emulsifying particles cannot be maintained, and if it exceeds the above range, there is a risk of causing skin irritation.

[0032] The oil phase may further contain an oil phase stabilizer. The oil phase stabilizer exerts a thickening effect and an effect of preventing separation, coalescence, etc. of particles composed of the aqueous phase or particles composed of the oil phase, thereby maintaining a stable emulsion. As an example, the oil phase stabilizer includes amino acid derivatives such as N-lauroyl-L-glutamic acid and α,γ-di-n-butylamine; dextrin fatty acid esters such as dextrin palmitate, dextrin stearate, dextrin palmitate / ethylhexanoate, and dextrin myristate; sucrose fatty acid esters such as sucrose palmitate and sucrose stearate; fructooligosaccharide fatty acid esters such as inulin stearate and fructooligosaccharide 2-ethylhexanoate; sorbitol benzylidene derivatives such as monobenzylidene sorbitol and dibenzylidene sorbitol; polyurethane-79, polyethylene, glyceryl behenate, glyceryl behenate / eicosadioate, stearoyl inulin, trihydroxystearin, polybutene, polyamide-2, polyamide-3, polyamide-5, polyamide-8, hydrogenated vegetable oil, isophorone diisocyanate copolymer (IPDI Copolymer), bentonite, hectorite, montmorillonite, attapulgite, sepiolite, calcium silicate, silica, silica silylate, silica dimethyl silylate, polymethylsilsesquioxane / silicaIt may contain, but is not limited to, one or more selected from the group consisting of Crosspolymer, Mica, Polymethyl Methacrylate, Nylon-6, Iron Oxides, Tin Oxide, Methyl Methacrylate Crosspolymer, Titanium Dioxide, Synthetic Fluorphlogopite, Polymethylsilsesquioxane, ETHYLENE / PROPYLENE / STYRENE COPOLYMER, and BUTYLENE / ETHYLENE / STYRENE COPOLYMER.

[0033] The oil phase stabilizer may be contained in an amount of 0.5 to 80% by weight, for example, 1 to 40% by weight based on the total weight of the cosmetic composition. If the content of the oil phase stabilizer is less than the above range, the effect of enhancing high-temperature and long-term stability may be insufficient. If it exceeds the above range, the viscosity and hardness will increase, not only impairing the usability but also making it difficult to manufacture the emulsion in some cases.

[0034] The oil phase may further contain an active ingredient. For example, the active ingredient may contain, but is not limited to, one or more selected from the group consisting of Retinol, Retinyl Palmitate, Retinal, Tretinoin, Retinoic Acid, Adapalene, Tazarotene, Isotretinoin, Calciferol, Tocopherol, and Phytonadione.

[0035] The active ingredient may be contained in an amount of 0.01 to 5% by weight, for example, 0.02 to 2.5% by weight based on the total weight of the cosmetic composition. If the content of the active ingredient is less than the above range, the efficacy may not be imparted to the skin, and if it exceeds the above range, skin irritation may be caused.

[0036] emulsion cosmetic composition The emulsion cosmetic composition of the present invention contains the aforementioned aqueous phase and the aforementioned oil phase, and can be produced in an oil-in-water (O / W) type, water-in-oil (W / O) type, water-in-oil-in-water (W / O / W) type, or oil-in-water-in-oil (O / W / O) type.

[0037] The emulsion cosmetic composition of the present invention may be in any dosage form among lotion, essence, cream, serum, mask liquid, ampoule, or pack, but is not limited thereto. As an example, the self-emulsifying cosmetic composition of the present invention may be an emulsion that may contain vitamin C.

[0038] The emulsion cosmetic composition of the present invention can be produced by various methods known in the art. As an example, it can be produced by adding an oil phase to an aqueous phase part using a homomixer or an azimixer.

Examples

[0039] Hereinafter, the present invention will be described more specifically with reference to examples. However, the following examples are for helping the understanding of the present invention, and the scope of the present invention is not limited by the examples in any sense.

[0040] [Examples 1 to 3] After producing the O / W type emulsion compositions of each example according to the composition described in Table 1 below, the physical properties were measured by the following method. The measured physical properties are shown in Table 1 and FIGS. 1 and 2.

[0041] self-emulsifying ability The presence or absence of particle formation was confirmed by microscopic observation. [Evaluation Criteria] ○: The particles are uniformly formed. △: The particles are non-uniformly formed. ×: Emulsion particles are not formed.

[0042] emulsion stability After leaving the emulsion composition standing at 50°C for 1 month, the morphology of the O / W particles was observed under a microscope. [Evaluation Criteria] ○: The particle size is maintained without change. ×: The particles are broken or coalesced, and the particle size is increasing or decreasing.

[0043] stability of vitamin C After leaving the emulsion composition standing at 50°C for 1 month, the color change was observed. [Evaluation Criteria] ○: No color change ×: Color change occurred

[0044] [Comparative Examples 1 - 3] Except for making the composition described in Table 1 below, O / W type emulsion compositions of each comparative example were produced in the same manner as in the examples, and the physical properties were measured. The measured physical properties are shown in Table 1 and Figures 1 and 2.

[0045]

Table 1

[0046] Polyol: Glycerin Thickener: Sodium alginate Self-emulsifying inducer: Acrylates / C10 - 30 Alkyl Acrylate Crosspolymer Self-emulsifying stabilizer: 2,3-Butanediol pH buffer: A mixture of Citric Acid and Sodium Citrate with a weight ratio of 1:7 Oil: Octyldodecanol

[0047] As shown in Table 1, FIG. 1, and FIG. 2 above, the emulsion compositions of Examples 1 to 3 according to the present invention exhibited excellent emulsion stability by self-emulsification and excellent stability of vitamin C. On the other hand, the emulsion composition of Comparative Example 1 using a self-emulsifying stabilizer at a content outside the scope of the present invention showed insufficient self-emulsification, resulting in a large particle size and discoloration of vitamin C being observed. The emulsion compositions of Comparative Example 2 that did not contain a self-emulsifying stabilizer and Comparative Example 3 that did not contain a self-emulsifying inducer did not self-emulsify, did not form particles, and discoloration of vitamin C was observed.

Industrial Applicability

[0048] The present invention provides an emulsified cosmetic composition that has high stability of the interfacial film between the aqueous phase and the oil phase and exhibits excellent stability without containing a surfactant. Since the cosmetic composition according to the present invention does not contain a surfactant, it has low skin irritation, is environmentally friendly, has excellent spreadability, extensibility, and usability in an emulsion dosage form, and at the same time has excellent makeup sustainability and water resistance. In addition, the cosmetic composition of the present invention is suitable for stabilizing active ingredients such as vitamins within the dosage form.

Claims

1. An emulsion cosmetic composition comprising an aqueous phase and an oil phase containing a self-emulsifying inducer and a self-emulsifying stabilizer, wherein the self-emulsifying stabilizer is an amphiphilic substance, and containing 0.01 to 5% by weight of the self-emulsifying stabilizer based on the total weight of the cosmetic composition.

2. The emulsion cosmetic composition according to claim 1, wherein the self-emulsifying inducer is a polymer having a hydrophobic alkyl chain.

3. The emulsion cosmetic composition according to claim 1, wherein the self-emulsifying inducer contains one or more selected from the group consisting of acrylate / C10-30 alkyl acrylate cross-polymer (Acrylates / C10-30 Alkyl Acrylate Cross-polymer), ammonium acryloyldimethyltaurate / beheneth-25 methacrylate cross-polymer (Ammonium Acryloyldimethyltaurate / Beheneth-25 Methacrylate Cross-polymer), acrylate / palmiteth-25 acrylate copolymer (Acrylates / Palmiteth-25 Acrylate Copolymer) and acrylate / beheneth-25 methacrylate copolymer (Acrylates / Beheneth-25 Methacrylate Copolymer).

4. The emulsion cosmetic composition according to claim 1, wherein the self-emulsifying stabilizer contains a diol compound having two hydroxy groups or a mixture thereof.

5. The emulsion self-emulsifying cosmetic composition according to claim 1, wherein the self-emulsifying stabilizer contains one or more selected from the group consisting of 3-(2-ethylhexyl)oxylpropane-1,2-diol, 2,3-butanediol, 1,2-octanediol, 1,2-hexanediol and 1,2-pentanediol.

6. Further comprising a pH buffer, wherein the pH buffer contains one or more selected from the group consisting of citric acid, sodium citrate, sodium hydroxide and potassium hydroxide. The emulsion cosmetic composition according to claim 1.

7. The emulsion cosmetic composition according to claim 6, containing 0.05 to 5% by weight of the self-emulsifying inducer, 0.01 to 5% by weight of the self-emulsifying stabilizer, and 0.01 to 5% by weight of the pH buffer based on the total weight of the cosmetic composition.

8. The emulsion cosmetic composition according to claim 1, wherein the self-emulsifying inducer and the self-emulsifying stabilizer are mixed at a weight ratio of 1:0.001 to 100.

9. The emulsion cosmetic composition according to claim 1, which is an oil-in-water (O / W) type, water-in-oil (W / O) type, water-in-oil-in-water (W / O / W) type or oil-in-water-in-oil (O / W / O) type.

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