Self-emulsifying emulsion cosmetic composition

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] In order to provide various functional ingredients to the skin, a variety of emulsified cosmetics are used, and emulsified cosmetics are generally divided into oil-in-water (O / W) type and water-in-oil (W / O) type formulations. They all contain an oil phase and an aqueous phase, and therefore have the advantages of providing a softening effect and a moisturizing effect. Various technologies are being developed to improve the physical properties of formulation stability of oil-in-water (O / W) type or water-in-oil (W / O) type cosmetic compositions, for example, Korean Patent Publication No. 1996-001690 discloses a water-in-oil-in-water (W / O / W) type cosmetic composition containing a W / O preparation containing a polyperfluoromethyl isopropyl ether group. However, there is a problem in conventional emulsified formulations that when an unstable component is loaded in the functional ingredient, the formulation is easily separated, or the functional ingredient precipitates from the formulation.

[0003] In order to improve the stability of these emulsion-type cosmetic compositions, a high content of surfactant is generally used, but this goes against the preferences of consumers who recently pay attention to environmental protection and skin safety. Therefore, it is necessary to develop an emulsion cosmetic composition that is excellent in the stability of the interfacial film between the aqueous phase and the oil phase without containing a surfactant.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Korean Patent Publication No. 1996-001690 Summary of the invention

[0007] Problem that the invention aims to solve

[0008] The present invention provides an emulsion cosmetic composition that exhibits excellent stability even without containing a surfactant.

[0009] Means used to solve problems

[0010] The emulsion cosmetic composition of the present invention comprises an aqueous phase and an oil phase, wherein the aqueous phase comprises a self-emulsification inducer and a self-emulsification stabilizer, and the oil phase comprises an oil phase stabilizer.

[0011] Effects of the Invention

[0012] The present invention provides an emulsion cosmetic composition, which has high stability of the interfacial film between the aqueous phase and the oil phase even when the emulsion cosmetic composition does not contain a surfactant, and thus exhibits excellent stability. The cosmetic composition according to the present invention does not contain a surfactant, and thus has little irritation to the skin and is environmentally friendly, and because it is an emulsion formulation, it has excellent spreadability, spreadability, and feel of use, and also excellent makeup persistence and water resistance. In addition, the cosmetic composition of the present invention is suitable for stabilizing active ingredients such as retinol in the formulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 These are photographs for observing the emulsion stability of Examples 1-3 and Comparative Examples 1-4.

[0014] Figure 2 These are photographs for observing the stability of retinol in Examples 1-3 and Comparative Examples 1-4. DETAILED DESCRIPTION

[0015] The present invention is described below. However, it is not limited by the following content, and each component can be subjected to various deformations or selectively mixed use as needed. Therefore, it should be understood that all changes, equivalents and even substitutes included in the thought and technical scope of the present invention are included.

[0016] The invention relates to an emulsion cosmetic composition, which comprises a water phase and an oil phase. The water phase comprises a self-emulsification inducer and a self-emulsification stabilizer, and the oil phase comprises an oil phase stabilizer.

[0017] Water Phase

[0018] The aqueous phase of the emulsion cosmetic composition according to the present invention comprises a self-emulsification inducer and a self-emulsification stabilizer. The aqueous phase may also comprise a thickener, a pH buffer, an active ingredient, and additives conventionally used in the art.

[0019] The present invention uses a self-emulsification inducer that inducing self-emulsification to ensure the stability of the formulation, thereby providing an emulsion cosmetic composition having excellent stability without using a surfactant. The self-emulsifying inducer is a polymer having a hydrophobic alkyl chain, for example, may include a copolymer selected from the group consisting of 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, and acrylates / C10-30 alkyl acrylate crosspolymer. Crosspolymer), Acrylates / C10-30 Alkyl Methacrylate Copolymer, Acrylates / C12-13 AlkylMethacrylates / Methoxyethyl Acrylate Crosspolymer, Acrylates / C12-22 Alkyl Methacrylate Copolymer, Acrylates / C26-29 Olefin Copolymer, Acrylates / C5-8 Alkyl Acrylate Copolymer, Acrylates / Ceteareth-20 Methacrylate CrosspolymerCrosspolymer), 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 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 Acrylate Copolymer Copolymer), Acrylates / Beheneth-25 Methacrylate / HEMA Crosspolymer, Ammonium Acryloyldimethyltaurate / Beheneth-25 Methacrylate CrosspolymerAcryloyldimethyltaurate / Beheneth-25Methacrylate Crosspolymer), Ammonium Acryloyldimethyltaurate / Laureth-7MethacrylateCopolymer, Ammonium Acryloyldimethyltaurate / Steareth-8Methacrylate Copolymer, AMP-Acrylate / C1-18 AlkylAcrylates / C1-8 Alkyl Acrylamide Copolymer, AMP-Acrylates / C1-18 Alkyl Acrylate / C1-8 AlkylAcrylamide Copolymer), AMP-Acrylates / C1-18 Alkyl Acrylates / C1-8 AlkylAcrylamide / Hydroxyethylacrylate Copolymer, Butyl Acrylate / C6-14PerfluoroalkylethylAcrylate / Mercaptopropyl Dimethicone Copolymer, C12-22 Alkyl Acrylate / Hydroxyethylacrylate Copolymer, C18-22 Alkyl PEG-25Methacrylate / Diethylaminoethyl Methacrylate Copolymer Copolymer), C20-24 Olefin / Oleyl Alcohol CopolymerCopolymer), 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 DimethiconeMethacrylate Copolymer, C8-22 Alkyl Acrylates / Methacrylic Acid Crosspolymer At least one of the group consisting of, but not limited to, potassium acrylates / C10-30 alkyl acrylate crosspolymer, sodium acrylates / beheneth-25 methacrylate crosspolymer, and sodium acrylates / C10-30 alkyl acrylate crosspolymer. For example, the self-emulsifying inducing agent may include an agent selected from the group consisting of acrylic acid (esters) / C10-30 alkyl acrylate crosspolymer (Acrylates / C10-30 Alkyl Acrylate Crosspolymer), ammonium acryloyldimethyltaurate / beheneth-25methacrylate crosspolymer (Ammonium Acryloyldimethyltaurate / Beheneth-25Methacrylate Crosspolymer), acrylic acid (esters) / palm oil alcohol polyether -25 acrylate copolymer (Acrylates / Palmmeth-25AcrylateAt least one of the group consisting of Acrylates / Beheneth-25 Methacrylate Copolymer and Acrylates / Beheneth-25 Methacrylate Copolymer.

[0020] The cosmetic composition may contain the self-emulsification inducer in an amount of 0.05 to 5 wt % based on the total weight of the cosmetic composition. When the content of the self-emulsification inducer is lower than the above range, emulsification may not be achieved, or even if emulsified, emulsification may not be maintained, and when the content exceeds the above range, the viscosity may become very high, and emulsification may not be achieved, or even if emulsified, the emulsification may be difficult to use due to viscosity.

[0021] The present invention can provide an emulsion cosmetic composition having excellent stability even without using a surfactant by using a self-emulsifying stabilizer that stabilizes the self-emulsifying formulation. The self-emulsifying stabilizer is an amphiphilic substance, for example, it can include a diol compound having two hydroxyl groups or a mixture thereof. For example, the self-emulsifying stabilizer can include a selected from 1,2-butylene glycol (1,2-Butanediol), 1,2-hexanediol (1,2-Hexanediol), 1,2-pentanediol (1,2-Pentanediol), 1,2-octanediol (1,2-Octanediol), 3-(2-ethylhexyloxy)-1,2-propylene glycol (3-(2-Ethylhexyloxy)propane-1,2-diol), 1,2-dodecanediol (1,2-Dodecanediol) l), 1,2-propylene glycol (Propane-1,2-Diol), 1,2-decanediol (1,2-Decanediol), 1,2-tetradecanediol (1,2-Tetradecanediol), 1,2-hexadecanediol (1,2-octadecanediol), 1,2-eicosanediol (1,2-Eicosanediol), 1,2-hexacosane diol), 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-propylene glycol, 1,7-heptanediol, 1,8-octanediol, 1,14-tetradecanediol, 1,16-hexadecanediol and 12-hydroxystearyl alcohol. For example, the self-emulsifying stabilizer may include at least one selected from the group consisting of 3-(2-ethylhexyloxy)-1,2-propylene glycol, 2,3-butylene glycol, 1,2-octanediol, 1,2-hexanediol and 1,2-pentanediol.

[0022] The self-emulsifying stabilizer may be included in an amount of 0.01 wt % to 5 wt % based on the total weight of the cosmetic composition. When the content of the self-emulsifying stabilizer is lower than the above range, the self-emulsifying particles may not be maintained, and when the content exceeds the above range, irritation to the skin may be caused.

[0023] The self-emulsification inducer and the self-emulsification stabilizer can be mixed in a weight ratio of 1:0.002 to 100. When the mixing ratio of the self-emulsification stabilizer to the self-emulsification inducer is lower than the above range, self-emulsification or emulsification may not be maintained, and when it exceeds the above range, skin irritation may be caused or self-emulsification may not be maintained.

[0024] The aqueous phase may further include a polyol. The polyol has the effect of imparting a softening and moisturizing feeling to the skin, and may include, for example, polyethylene glycol, glycerol, dipropylene glycol, butylene glycol, pentylene glycol, methyl propanediol, sorbitol, diglycerol, erythritol, pentaerythritol, polybutylene glycol-10, polyglycerol-3, polyglycerol-4, polyglycerol-6, polyglycerol-10, polyglycerol-20, polyglycerol-40, sorbitol polyether-5, sorbitol polyether-6, sorbitol polyether-20, sorbitol polyether At least one of the group consisting of, but not limited to, benzyl alcohol, sorbitol, benzyl alcohol ...

[0025] The cosmetic composition may include 1 to 20 wt% of the polyol based on the total weight. When the content of the polyol is lower than the above range, the moisturizing feeling may be reduced, and when it exceeds the above range, stickiness and irritation may be generated.

[0026] The aqueous phase may further include a thickener. The thickener is used to maintain the stability (precipitation / floating) of particles in the aqueous phase. The thickener may include at least one of an acrylic polymer and a polysaccharide polymer.

[0027] The acrylic polymer includes an acrylic polymer or an acrylic acid derivative polymer, for example, may include at least one of 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.

[0028] The polysaccharide polymer includes a polysaccharide or a polysaccharide derivative polymer, for example, may include at least one selected from the group consisting of sodium alginate, carrageenan, cellulose sulfate, dextrin sulfate, carboxymethyl cellulose, xanthan gum, locust bean gum, guar gum, carrageenan, sodium hyaluronate and glycosaminoglycan containing a sulfate group, but is not limited thereto.

[0029] The thickener may be included 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. When the content of the thickener is lower than the above range, particle stability may be deteriorated due to low viscosity, and when the content exceeds the above range, spreadability, stickiness, and other use feelings may be deteriorated due to high viscosity, and preparation of the emulsion may be difficult.

[0030] The aqueous phase may further comprise a pH buffer. The pH buffer may stabilize the oil-soluble components contained in the oil phase. The pH buffer may include a compound 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, and potassium carbonate. The pH buffer may include at least one selected from the group consisting of citric acid, sodium citrate, sodium hydroxide and potassium hydroxide.

[0031] The pH buffer may be included in an amount of 0.01 wt % to 5 wt % based on the total weight of the cosmetic composition. When the content of the pH buffer is lower than the above range, it may be difficult to stabilize active ingredients such as retinol, and when it exceeds the above range, it may cause skin irritation or emulsification destruction.

[0032] The aqueous phase may further include an active ingredient. The active ingredient is a hydrophilic material with excellent compatibility in pure water, for example, may include at least one of 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, but is not limited thereto.

[0033] Based on the total weight of the cosmetic composition, the active ingredient may be included in an amount of 0.01% to 20% by weight, for example, 0.05% to 10% by weight. When the content of the active ingredient is lower than the above range, it is difficult to expect the efficacy on the skin, and when it exceeds the above range, it may cause irritation to the skin.

[0034] The aqueous phase comprises purified water in an amount satisfying 100 wt % of the total weight of the cosmetic composition. For example, based on the total weight of the cosmetic composition, the aqueous phase may comprise 5 wt % to 95 wt % of purified water.

[0035] oil phase

[0036] The oil phase of the emulsion cosmetic composition according to the present invention comprises an oil phase stabilizer, and the oil phase may further comprise a self-emulsifying stabilizer, an effective ingredient, and additives conventionally used in the art.

[0037] The oil phase contains an oil phase stabilizer. The oil phase stabilizer stabilizes the emulsion by exerting a thickening effect and preventing the separation and merging of particles formed by the aqueous phase or particles formed by the oil phase. For example, the oil phase stabilizer may include amino acid derivatives such as N-lauroyl-L glutamic acid, α,γ-di-n-butylamine, etc., dextrin fatty acid esters such as dextrin palmitate, dextrin stearate, dextrin palmitate / ethylhexanoate, dextrin myristate, etc., sucrose fatty acid esters such as sucrose palmitate, sucrose stearate, etc., oligofructose fatty acid esters such as inulin stearate, oligofructose 2-ethylhexanoate, etc., sorbitol benzylidene derivatives,Such as monobenzyl sorbitol, dibenzylidene sorbitol, polyurethane-79, polyethylene, glyceryl behenate, glyceryl behenate / eicosadioate, stearyl inulin, trihydroxystearin, polybutene, polyamide-2, polyamide-3, polyamide-5, polyamide-8, hydrogenated vegetable oil, isophorone diisocyanate copolymer, bentonite, hectorite, montmorillonite, attapulgite, sepiolite, calcium silicate, etc. At least one of the group consisting of silicate, silica, silica silylate, silica dimethyl silylate, polymethylsilsesquioxane / silica crosspolymer, mica, polymethyl methacrylate, nylon-6, iron oxide, tin oxide, methyl methacrylate crosspolymer, titanium dioxide, synthetic fluorphlogopite, polymethylsilsesquioxane, ethylene / propylene / styrene copolymer, butylene / ethylene / styrene copolymer, but not limited thereto.

[0038] Based on the total weight of the cosmetic composition, the oil phase stabilizer may be included in an amount of 0.5 wt % to 80 wt %, for example, 1 wt % to 40 wt %. When the content of the oil phase stabilizer is lower than the above range, the high temperature and long-term stability enhancement effect may be minimal, and when it exceeds the above range, the viscosity and hardness increase, which not only destroys the feeling of use, but also makes the preparation of the emulsion difficult.

[0039] The oil phase may further contain a self-emulsifying stabilizer. An emulsion cosmetic composition may be provided which has excellent stability even without using a surfactant by using a self-emulsifying stabilizer that stabilizes the self-emulsifying formulation. As the self-emulsifying stabilizer, substances exemplified as the self-emulsifying stabilizer contained in the water phase may be used.

[0040] Based on the total weight of the cosmetic composition, the self-emulsifying stabilizer may be included in an amount of 0.01 wt % to 5 wt %, for example, 0.1 wt % to 2.5 wt %. When the content of the self-emulsifying stabilizer is lower than the above range, the self-emulsifying particles may not be maintained, and when it exceeds the above range, irritation to the skin may be caused.

[0041] The oil phase includes oil. As the oil, the oil used in the art can be used, and there is no particular limitation. For example, the oil can include mineral oil, isohexadecane, isostearyl isostearate, isopropyl myristate, caprylic / capric triglyceride, diisopropyl adipate, isononyl isononanoate, isodecyl neopentanoate, cetyl ethyl hexanoate, octyl dodecanol myristate, di-C12-13 alcohol malate, pentaerythritol tetraisostearate, pentaerythritol tetra(ethylhexanoate) ester, and the like. Tetraethylhexanoate), Diisostearyl Malate, Isopropyl Palmitate, C12-15 Alkyl Benzoate, Dicaprylyl Carbonate, Dicaprylyl Ether, 2-Octyldodecanol, Dimethicone, Lauryl Dimethicone, Cyclopentasiloxane, Cyclohexasiloxane, Trisiloxane, Methyl Trimethicone, Amodimethicone, Phenyl Trimethicone, Phenyl Methicone, Dimethicone Copolyol, Dimethicone Copolyol Acetate, Silicone-Glycol Copolyol, Dimethiconol, Methyl Polysiloxane, Methyl Phenyl Polysiloxane, Dimethicone Copolyol Methyl Ether, Methyl Cyclopolysiloxane At least one of the group consisting of cyclopolysiloxane, dimethylpolysiloxane, hexamethyldisiloxane, aminopropyl dimethicone, caprylyl methyl polysiloxane and simethicone, but not limited thereto.

[0042] The cosmetic composition may contain 1 to 80 wt% of the oil based on the total weight. When the content of the oil phase is lower than the above range, an emulsified dosage form may not be formed, and when it exceeds the above range, emulsified particles may not be formed.

[0043] The oil phase may further include an active ingredient. For example, the active ingredient may include at least one selected from the group consisting of retinol, retinyl palmitate, retinal, tretinoin, retinoic acid, adapalene, tazarotene, isotretinoin, calciferol, tocopherol, and phytonadione, but is not limited thereto.

[0044] Based on the total weight of the cosmetic composition, the active ingredient may be included in an amount of 0.01 wt % to 5 wt %, for example, 0.02 wt % to 2.5 wt %. When the content of the active ingredient is lower than the above range, it may not impart efficacy to the skin, and when it exceeds the above range, it may cause irritation to the skin.

[0045] Emulsion cosmetic composition

[0046] The emulsion cosmetic composition of the present invention comprises the water phase and the oil phase as described above, and can be prepared into an oil-in-water (O / W) type, a water-in-oil (W / O) type, a water-in-oil-in-water (W / O / W) type, or an oil-in-water-in-oil (O / W / O) type.

[0047] The emulsion cosmetic composition of the present invention can be any one of emulsion, essence, cream, essence, facial mask, ampoule or facial mask dosage forms, but is not limited thereto. For example, the emulsion cosmetic composition of the present invention can be an emulsion containing retinol.

[0048] The emulsion cosmetic composition of the present invention can be prepared by various methods known in the art. For example, it can be prepared by adding the oil phase to the water phase using a homomixer or an agi mixer. Specific embodiments

[0050] The present invention is further described in detail below by way of examples. However, the following examples are only used to help understand the present invention, and the scope of the present invention is not limited to the examples in any sense.

[0051] [Examples 1-3]

[0052] The oil-in-water (O / W) emulsion composition of each example was prepared according to the composition described in Table 1 below, and then the physical properties were measured by the following method. The measured physical properties are shown in Tables 1 and Figure 1 , Figure 2 .

[0053] Self-emulsifying ability

[0054] Observe under a microscope to confirm whether particles are formed.

[0055] [Evaluation criteria]

[0056] ○: Forming uniform particles

[0057] △: Formation of uneven particles

[0058] X: No emulsion particles are formed

[0059] Emulsion stability

[0060] The emulsified composition was left to stand at a temperature of 50° C. for 1 month, and then the O / W particle shape was observed under a microscope.

[0061] [Evaluation criteria]

[0062] ○: The particle size remains unchanged

[0063] X: Particles are broken or merged, and the size becomes larger or smaller

[0064] Retinol Stability

[0065] The emulsified composition was left at a temperature of 50°C for 1 month, and then the color change was observed.

[0066] [Evaluation criteria]

[0067] ○: No discoloration

[0068] X: Change color

[0069] [Comparative Examples 1-4]

[0070] Except for the composition described in Table 1 below, the oil-in-water (O / W) emulsion composition of each comparative example was prepared in the same manner as in the examples, and the physical properties were measured. The measured physical properties are shown in Tables 1 and Figure 1 , Figure 2 .

[0071] Table 1

[0072]

[0073] Polyol: Glycerin

[0074] Thickener: sodium alginate

[0075] Self-emulsifying agent: Acrylates / C10-30 Alkyl Acrylate Crosspolymer

[0076] Self-emulsifying stabilizer: 2,3-Butanediol

[0077] Oil: Octyldodecanol

[0078] Oil phase stabilizer: Hectorite

[0079] As shown in Table 1 and Figure 1 , Figure 2 As shown, the emulsified compositions of Examples 1 to 3 according to the present invention exhibit excellent emulsification stability through self-emulsification and excellent retinol stability. On the contrary, the emulsified composition of Comparative Example 1 using a self-emulsifying stabilizer at a content beyond the scope of the present invention was insufficiently self-emulsified, the particle size became larger, and discoloration of retinol was observed. The emulsified compositions of Comparative Example 2 not containing a self-emulsifying stabilizer and Comparative Example 3 not containing a self-emulsifying inducer did not self-emulsify, did not generate particles, and discoloration of retinol was observed. The emulsified composition of Comparative Example 4 not containing an oil phase stabilizer was self-emulsified, but the particle size became larger, and discoloration of retinol was observed.

[0080] Industrial Availability

[0081] The present invention provides an emulsion cosmetic composition, which has high stability of the interfacial film between the aqueous phase and the oil phase even when the emulsion cosmetic composition does not contain a surfactant, and thus exhibits excellent stability. The cosmetic composition according to the present invention does not contain a surfactant, and thus has little irritation to the skin and is environmentally friendly, and because it is an emulsion formulation, it has excellent spreadability, spreadability, and feel of use, and also excellent makeup persistence and water resistance. In addition, the cosmetic composition of the present invention is suitable for stabilizing active ingredients such as retinol in the formulation.

Claims

1. An emulsion cosmetic composition, wherein: The invention comprises an aqueous phase and an oil phase, wherein the aqueous phase comprises a self-emulsification inducer and a self-emulsification stabilizer, and the oil phase comprises an oil phase stabilizer. The self-emulsifying stabilizer is an amphiphilic substance. Based on the total weight of the cosmetic composition, the self-emulsifying stabilizer is included in an amount of 0.01 wt % to 5 wt %.

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

3. The emulsion cosmetic composition according to claim 1, wherein The self-emulsifying inducer includes at least one selected from the group consisting of acrylic acid (esters) / C10-30 alkyl acrylate crosspolymer, ammonium acryloyldimethyltaurate / beheneth-25 methacrylate crosspolymer, acrylic acid (esters) / palmitoleyl alcohol polyether-25 acrylate copolymer and acrylic acid (esters) / beheneth-25 methacrylate copolymer.

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

5. The emulsion cosmetic composition according to claim 1, wherein The self-emulsifying stabilizer includes at least one selected from the group consisting of 3-(2-ethylhexyloxy)-1,2-propanediol, 2,3-butanediol, 1,2-octanediol, 1,2-hexanediol, and 1,2-pentanediol.

6. The emulsion cosmetic composition according to claim 1, wherein Based on the total weight of the cosmetic composition, the cosmetic composition comprises 0.05 wt % to 5 wt % of the self-emulsification inducer, 0.01 wt % to 5 wt % of the self-emulsification stabilizer and 0.5 wt % to 80 wt % of the oil phase stabilizer.

7. The emulsion cosmetic composition according to claim 1, wherein The self-emulsification inducer and the self-emulsification stabilizer are mixed in a weight ratio of 1:0.002 to 100.

8. The emulsion cosmetic composition according to claim 1, wherein The composition is of an oil-in-water type (O / W type), a water-in-oil type (W / O type), a water-in-oil-in-water type (W / O / W type) or an oil-in-water-in-oil type (O / W / O type).

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