WO2020096409A1 - Oil-in-water skin care cosmetics composition comprising oil gelling agent - Google Patents

Abstract

The present invention relates to an oil-in-water skin care cosmetics composition comprising an oil gelling agent, more specifically to an oil-in-water skin care cosmetics composition which comprises an oil gelling agent in the oil phase, which is an internal phase, and a carbomer viscosity-enhancing agent in the water phase to thus allow greater and sustained formulation stability, and overall improved feel and ease of application. According to the present invention, an oil-in-water skin care cosmetics composition can be provided which, despite a low amount of surfactant used, exhibits superb formulation stability and excellent overall feel and ease of application, being easy to spread and apply on the skin, not having a glutinous feel, and the like.

Description

Oil-in-water skin care cosmetic composition comprising an oil gelling agent

The present invention relates to an oil-in-water type skin care cosmetic composition comprising an oil gelling agent, and more specifically, by including an oil gelling agent in an oil phase as an inner phase, and by including a carbomer-based thickener in the water phase, it has high formulation stability. , It relates to an oil-in-water skin care cosmetic composition with improved overall feeling of use.

This application claims the benefit of the filing date of Korean Patent Application No. 10-2018-0137356 filed with the Korean Intellectual Property Office on November 09, 2018, all of which is incorporated herein.

With the continuous growth of beauty-related companies, in the manufacture of oil-in-water type skin care cosmetic compositions, it has established itself as a consistent consumer trend while improving the stability of the formulation and simultaneously providing excellent usability. In order to improve and maintain the stability of the formulation, a water-soluble thickener that reduces the fluidity of the traumatized water phase is prescribed or a surfactant that improves the emulsifying power of the oily phase of the traumatized phase, but the spreadability is poor in terms of the usability of the formulation. There is.

In order to improve the feeling of use, in Korean Patent No. 10-1480688, water-soluble film former is used to impart instant elasticity to the skin and to enhance moisture absorption and absorption of active ingredients through the formation of a flexible skin protective film. However, there is still a problem that the stickiness becomes severe and the feeling of use decreases.

As described above, the feeling of use is a result of various factors such as elasticity as well as flatness and stickiness. In the past, only studies for improvement of only some elements have been performed, and there is a limitation that the usability is not entirely improved. Therefore, in the oil-in-water type skin care cosmetic composition, it is necessary to develop a formulation with improved stability and overall feeling of use.

[Advanced technical literature]

 (Patent Document 1) Korean Registered Patent No. 10-1480688

The present invention has been devised to solve the above problems, and the present inventors in the oil-in-water type skin care cosmetic composition, the separation between the oil phase and the water phase is inhibited, while having high formulation stability, and at the same time improving the overall feeling of use. As a result of research to realize, the present invention discovered that the oil phase of the inner phase contains the oil gelling agent, and when the water phase includes the carbomer-based thickener, it is possible to improve the stability of the formulation while simultaneously improving the overall feeling of use. Was completed. Accordingly, the object of the present invention is to include an oil gelling agent in the oil phase, which is an inner phase, and by including a carbomer-based thickener in the aqueous phase, the formulation stability is excellent and the feeling of use such as spreadability, stickiness, etc. is minimized even though the amount of surfactant is minimized. It provides an excellent oil-in-water type skin care cosmetic composition as a whole.

In order to achieve the object of the present invention described above, the present invention provides an oil-in-water skin care cosmetic composition comprising an oily component comprising an oil and an oil gelling agent, and an aqueous phase component comprising water and a carbomer-based thickener.

According to the present invention, an oil gelling agent is included in the oil phase, which is an inner phase, and a carbomer-based thickener is included in the water phase, so that the stability of the formulation can be improved while improving the overall usability.

1 is a view showing the results of the formulation stability evaluation of the composition according to an embodiment and a comparative example of the present invention.

Figure 2 is a view showing the evaluation results of the viscosity change of the composition according to an embodiment and a comparative example of the present invention.

3 is a view showing the evaluation results of the usability of the composition according to an embodiment and a comparative example of the present invention.

Hereinafter, the present invention will be described in detail with reference to examples and drawings.

The name of the compound referred to herein is the International Nomenclature Cosmetic (INCI) listed in the International Cosmetic Ingredient Dictionary (ICID) issued by the Cosmetic, Toiletry and Fragrance Association (CTFA), unless otherwise specified. Ingredient) means a compound corresponding to the name, and if the name does not exist among INCI names, it means a compound according to the IUPAC nomenclature established by the International Union of Pure and Applied Chemistry (IUPAC), If a compound according to the IUPAC nomenclature does not exist, it means a compound corresponding to the name of a compound commonly used in the technical field of the present invention.

The oil-in-water skin care cosmetic composition according to the present invention is characterized by comprising an oil phase component comprising an oil and an oil gelling agent, and a water phase component comprising water and a carbomer-based thickener.

The term “emulsion formulation” used in the present invention is a formulation comprising two insoluble phases, and means a formulation composed of at least two components such as an aqueous phase and an oil phase.

The term “Oil in Water (O / W) type” used in the present invention is an emulsion formulation in which the continuous phase is an aqueous phase and the dispersed phase is an oily phase in the form of droplets, meaning a macroscopically homogeneous formulation.

The term “formulation stability” used in the present invention means a degree to which separation between the oil phase and the water phase is inhibited in a specific environment, particularly in a low temperature, high temperature or long-term storage environment. Specifically, it means the degree to which separation between the oil phase and the water phase is inhibited in a low temperature environment of 0 ° C or lower, a high temperature environment of 30 ° C or higher, or a long-term storage environment of 4 weeks or longer.

Conventional oil-in-water skin care cosmetic composition has been prescribed less than 20% by weight of oily components relative to the total weight of the composition, in order to prevent the feeling of use such as elasticity, stickiness, and the like. However, the oil-in-water type skin care cosmetic composition according to the present invention maintains the formulation stability even when it contains a relatively high content of oil components compared to the conventional composition, and the overall feeling of use is also excellent.

In the oil-in-water type skin care cosmetic composition according to the present invention, the mixing ratio of the oil phase component and the water phase component may be contained in a weight ratio of 30:70 to 5:95. The ratio is more preferably 25:75 to 10:90. As described above, by increasing the maximum content that the oil component can be contained in the composition, it is possible to provide a high gloss and minimize lumping when applied to the skin.

However, if the content of the oil component is less than 5% by weight, when the cosmetic composition is applied to the skin, a shiny shape may occur, and there is a possibility that a matte feeling decreases, and if it exceeds 30% by weight, an emulsion formulation Formation is difficult, there is a fear that the formulation stability is poor.

The oil used for the oil phase component may be an ester-based oil, a silicone-based oil, or a mixture thereof. The oil-in-water type skin care cosmetic composition is a hydrophilic type, which has the advantage of providing a moist and soft feeling of use, but has a disadvantage of poor water resistance and long lasting makeup. In order to improve these drawbacks, the composition of the present invention does not contain hydrocarbon-based oils such as liquid paraffin and squalane, and also excludes the hydrocarbon-based oils in that it can irritate or burden the skin. It is preferred.

Examples of the ester-based oil include octyldodecanol, ethylhexyl neopentanoate, ethylhexyl iononanoate, ethylyl laurte, and butyl laurate Laurate), Ethylhexyl Myristate, Isopropyl Myristate, Octyldodecyl Myristate, Ethylhexyl oleate, Ethylhexyl Palmitate, Iso Isopropyl Palmitate, Ethylhexyl Isopalmitate, Ethylhexyl Stearate, Ethylhexyl Isostearate, Isononyl Isononanoate, Poly Polyglyceryl-2 Triisostearate, Pentaerythrityl Tetraisostearate ), Cetyl Ethylhexanoate, Diisostearyl Malate, Phytosteryl Isostearyl Dimer Linoleate, etc. may be used alone or in combination. Preferably, at least one selected from octyldodecanol, diisostearyl malate, and phytosteryl isostearyl dimer dilinoleate can be used.

Examples of the silicone oil include polydimethylsiloxane, phenylsiloxane, alkylmethylsiloxane, dimethicone, cyclomethicone, dimethiconol, and dimethicone copolyol. (Dimethicone Copolyol), Silicone Elastomer, Silicone Resin, Dimethicone / Polysilyl Dimethicone / Vinyl Dimethicone / Vinyl Dimethicone Crosspolymer, Polysilicone-11 11), polysilicon-15 (Polysilicone-15), polysilicon-8 (Polysilicone-8), polysilicon-17 (Polysilicone-17) and the like can be used alone or in combination. Preferably, one or more selected from cyclomethicone, dimethicone, and dimethicol may be used.

The content of the oil may be 2 to 25% by weight based on the total weight of the composition. According to the present invention, by including an oil gelling agent in the inner phase oil phase, and by including a carbomer-based thickener in the water phase, as described above, it is possible to increase the maximum content of the oil phase component that can be contained in the composition. In the oil component, the main component providing high gloss corresponds to oil. However, in the case of Patent Document 1, the maximum content of the oil contained in the composition is only 20%, and thus it can be confirmed that the luster is low. In contrast, the present invention can increase the maximum content of the oil component contained in the composition to 25%. However, if the oil is less than the lower limit, there is a fear that the luster and spreadability may be deteriorated in terms of the feeling of use, and if it exceeds the upper limit, emulsification is not performed or There is a possibility that the oil phase and the water phase are separated, so that the stability of emulsification is lowered, and there is a concern that stickiness and greasyness may become serious in terms of feeling of use.

An object of the present invention is to provide an oil-in-water type skin care cosmetic composition that is excellent in formulation stability even with the use of a small amount of surfactant, and has excellent overall feeling of use, such as spreadability and stickiness, and the oil component may include a small amount of surfactant. . Examples of the surfactant include nonionic surfactants, anionic surfactants, cationic surfactants and amphoteric surfactants.

Nonionic surfactants include mono- and di-alkanolamides, such as Cocamide Monoethanolamin (Cocamide MEA) and Cocamide Diethanolamine (Cocamide DEA), amine And oxides (Amine Oxide), alkyl polyglucosides, glycol stearate, and glyceryl stearate. The nonionic surfactant may be ethoxylated, propoxylated or glycerolized. As the ethoxylated nonionic surfactant, PEG-9 to PEG-50 Laurate, PEG- PEG-9 to PEG-50 Palmitate, PEG-9 to PEG-50 Stearate, PEG-9 to PEG-50 Palmitostearate ( And PEG-9 to PEG-50 Palmitostearate, PEG-9 to PEG-50 Behenate, PEG-100 Stearate, and the like. In addition, the nonionic surfactant may be a glycerolated fatty alcohol-based compound, in particular lauryl alcohol, oleyl alcohol, cetearyl alcohol, oleyl / cetyl alcohol / Cetyl Alcohol), octadecanol, and the like.

Examples of the anionic surfactant include Fatty Acid Soap, α-Acyl Sulfonate Salt, Alkyl Sulfonate Salt, Alkylallyl Sulfonate Salt, and Alkyl naphthalene sulfonic acid. Salt (Alkylnaphthalene Sulfonate Salt), Alkyl Sulfate Salt, POE Alkyther Sulfate Salt, Alkylamide Sulfate Salt, Alkyl Phosphate Salt, POE Alkyl Phosphate Phosphate Salt, Alkylamide Phosphate Salt, Alkyloylalkyl Taurate Salt, N-Acyl Amino Acid Salt, POE Alkyl Ether Carboxylate Salt), Alkyl Sulfosuccinate Salt, Sodium Alkyl Sulfosacetate (

And Alkyl Sulfoacetate Salt, Acylated Hydrolyzed Collagen Peptide Salt, and Perfluoroalkyl Phosphoric Acid Ester.

Examples of the cationic surfactant include Alkyl Trimethyl Ammonium Chloride, Stearyl Trimethyl Ammonium Chloride, Stearyl Trimethyl Ammonium Bromide, and Cetostearyl Trimethyl Ammonium Chloride. Trimethyl Ammonium Chloride, Distearyl Dimethyl Ammonium Chloride, Stearyl Dimethyl Benzyl Ammonium Chloride, Behenyl Trimethyl Bromide, Benzalkonium Chloride , Diethylaminoethylamide Stearate, Dimethylaminopropylamide Stearate, Quaternary Ammonium Salt Derivatives of Lanolin, and the like.

As the amphoteric surfactant, carboxybetaine type, amide betaine type, sulfobetaine type, hydroxysulfobetaine type, amide sulfobetaine type ), Phosphobetaine Type, Amino Carboxylate Salt Type, Imidazoline Derivative Type, Amide Amine Type, and the like.

The surfactant used in the present invention has a HLB range of 1 to 17, is preferably a nonionic surfactant with less skin irritation, and is selected from the group consisting of glyceryl stearate, PEG-100 stearate, and cetearyl alcohol. It is more preferable that it is 1 or more types.

The term “a small amount of surfactant” used in the present invention means that the surfactant is contained in an amount of 0.05 to 3% by weight based on the total weight of the composition for optimal formulation stability and feeling of use, which is a conventional oil-in-water skin care It corresponds to a relatively small amount compared to the amount of the surfactant used in the cosmetic composition. By containing a small amount of surfactant, skin troubles caused by application of the composition can be prevented.

The oil-in-water skin care cosmetic composition according to the present invention contains an oil gelling agent as an inner phase oil phase, and when a carbomer-based thickener is included in the water phase, separation between the oil phase and the water phase is inhibited to maintain formulation stability, and the overall feeling of use is maintained. As a completed invention found to be improved, an oil gelling agent is included in the oil component.

The term “oil gelling agent” used in the present invention is a compound capable of gelling the oil phase of the oil-in-water type skin care cosmetic composition according to the present invention, and means a compound present in the oil phase of the composition. The oil gelling agent may be selected from lipophilic clays, polysaccharides, dextrin esters, and mixtures thereof.

As lipophilic clays, Dimethyl Alkyl Ammonium Hectorite, Disteardimonium Hectorite, Benzyl Dimethyl Stearyl Ammonium Hectorite, Distearyl Dimethyl Ammonium Chloride Distearyl Dimethyl Ammonium Chloride Treated Aluminum Magnesium Silicate, and the like. Examples of polysaccharides are cellulose, ethyl cellulose, carboxymethyl hydroxyethyl cellulose, and hydroxy Ethyl Cellulose, Hydroxyethyl Ethyl Cellulose, Hydroxypropyl Cellulose, Hydroxypropyl Methyl Cellulose, Methyl Hydroxyethyl Cellulose, Fine Crystalline Cellulose (Micro crystalline Cellulose, Sodium Cellulose Sulfate, and the like, and as dextrin esters, dextrin behenate, dextrin isostearate, dextrin laurate, dextrin Dextrine Myristate, Dextrin Palmitate, and the like.

In order to improve and maintain formulation stability at high temperature and long-term formulation stability, the oil gelling agent is preferably one or more selected from the group consisting of disteadimonium hectorite, ethyl cellulose, and dextrin palmitate.

The content of the oil gelling agent may be 0.6 to 2% by weight relative to the total weight of the composition. It is more preferably 0.8 to 1% by weight in terms of formulation stability and overall feeling of use. When the oil gelling agent is included below the lower limit, there is a fear that the elasticity in the sense of use falls, and when it is included above the upper limit, dispersion and dissolution of the oil gelling agent becomes difficult, resulting in poor formulation stability, and the stickiness of the product is too high In terms of feeling of use, there is a fear of flatness and poor stickiness.

As described above, the oil-in-water type skin care cosmetic composition according to the present invention includes an oil gelling agent as an inner oil phase, and when a carbomer-based thickener is included in the water phase, it is possible to maintain the stability of the formulation while improving the overall usability. As a completed invention by discovering that it can be, a carbomer-based thickener is included in the aqueous phase component.

The term “carbomer-based thickener” used in the present invention is a crosslinked acrylic acid polymer, and refers to a polymer having an acyclic aliphatic hydrocarbon-based backbone.

The carbomer-based thickener may be used, such as carbomer, acrylate copolymer, acrylate crosspolymer, polyacrylate-1 crosspolymer, and the like. , Compared to other thickeners, the viscosity synergistic effect is good, and the carbomer excellent in terms of feeling of use and formulation stability is more preferable.

The carbomer is commercially available under the trade name of CARBOPOL ^® from Lubrizol Corporation. Examples of carbomers available from Lubrizol are CARBOPOL 934, 940, 941, 980, 981, 1342, 2984, 5984, SILK 100, ETD 2020, 2050, ULTREZ 10, and ULTREZ 30. In addition, an alkali substance such as triethylamine, potassium hydroxide, or sodium hydroxide, which cross-links carbomer, can be added to increase its viscosity.

The content of the carbomer-based thickener may be 0.03 to 0.2% by weight based on the total weight of the composition. It is more preferably 0.05 to 0.2% by weight in terms of formulation stability and overall feeling of use. When the carbomer-based thickener is included below the lower limit, the product does not rise to the target viscosity, and there is a fear that phase separation occurs and formulation stability is lowered, and when it exceeds the upper limit, the strength of the product is too high. In terms of feeling of use, there is a fear of flatness and poor stickiness.

The oil-in-water skin care cosmetic composition according to the present invention includes an oil gelling agent in the inner phase, an oil phase, and at the same time, a carbomer-based thickener in the water phase, and the mixing ratio of the carbomer-based thickener and the oil gelling agent is based on weight. 1: 3 to 67 may be preferable. It should be included in the above weight ratio to maintain the stability of the formulation and at the same time improve the overall feeling of use.

According to the present invention, by including an oil gelling agent in the inner phase oil phase, and by including a carbomer-based thickener in the water phase, it is possible to maintain the formulation stability and improve the overall usability. The term “overall feeling” used in the present invention is an oil-in-water type according to the present invention, in addition to the spreadability, adhesion, and stickiness required when formulating an oil-in-water type skin care cosmetic composition according to the present invention, in particular, as a functional cosmetic for improving skin texture It means a feeling of use that combines the moisture, elasticity, and shine required when formulating a skin care cosmetic composition with an anti-aging functional cosmetic.

According to the present invention, it is possible to provide a refreshing feeling of use due to increased spreadability, excellent adhesion, and reduced stickiness, and accordingly, the composition of the present invention may be used as a functional cosmetic for improving skin texture. In addition, it is possible to provide an excellent glossiness due to increased moisture, increased elasticity, and high gloss, and thus can be used as an anti-aging functional cosmetic. The present invention can be applied not only to skin care products, but also to color cosmetics, as it exhibits both the above-mentioned refreshing feeling of use and excellent gloss, and can provide an effect of expressing healthy and smooth skin while expressing bright and smooth skin.

The term “improving skin texture” used in the present invention means improving the roughness of a three-dimensional microstructure formed on the skin surface.

The term "anti-aging" used in the present invention means to suppress the generation of blemishes, freckles, blemishes, keratin, wrinkles, etc. that occur on the appearance of the skin.

The present invention provides the use of an oil-based component comprising an oil and an oil-gelling agent and an aqueous component comprising water and a carbomer-based thickener in the manufacture of an oil-in-water skin care cosmetic composition or cosmetic.

The oil-in-water type skin care cosmetic composition according to the present invention may contain a component having the skin texture improving activity as an active ingredient and be formulated as a skin texture improving functional cosmetic composition. As the active ingredient, stem cell culture media (Stem Cell Culture Media), geranyl geranyl isopropanol, SH-polypeptide-7 (SH-polypeptide-7), niacinamide, urea (Urea) And D-Panthenol. By containing the active ingredient, it is possible to improve the skin texture, which is a fine structure that reflects not only the state of the skin surface, but also the state of the inside of the skin.

The oil-in-water skin care cosmetic composition according to the present invention may contain a component having anti-aging activity as an active ingredient and be formulated as an anti-aging functional cosmetic. Examples of the active ingredient include inhibitors such as caveolin-1, stem cell culture media, esculetin, and the like. By containing the above-mentioned active ingredient, it is possible to suppress the generation of blemishes, freckles, blemishes, keratin, wrinkles, etc. generated on the skin appearance.

The oil-in-water type skin care cosmetic composition according to the present invention may be combined with the above-mentioned components as well as other components that are usually blended in cosmetic products as necessary. In addition, examples of the blending components that may be added include emollients, pigments, fungicides, antioxidants, pH adjusters, moisturizers, pigments, fragrances, coolants, and adiaphoretics.

Emollient agents include Long Chained Acyl Glutamate Cholesteryl Ester, Cholesteryl Hydroxystearate, 12-Hydroxystearate, Stearic Acid, Rosin Acid, Lanolin Fatty Acid Cholesteryl Ester, and the like.

Pigments include Silic Acid, Anhydrous Silicic Acid, Magnesium Silicate, Talc, Sericite, Mica, Kaolin, Bengala, Clay, Bentonite, Titanium Coated Mica, Bismuth Oxychloride, Zirconium Oxide, Magnesium Oxide, Zinc Oxide, Titanium Oxide (Titanium Oxide), Aluminum Oxide, Calcium Sulfate, Barium Sulfate, Magnesium Sulfate, Calcium Carbonate, Magnesium Carbonate, Iron Oxide Inorganic pigments such as Oxide, Ultramarine, Chromium Oxide, Chromium Hydroxide, Calamine and their complexes, polyamide, polyester, polypropylene (Polypropylene), Polystyrene, Polyurethane ( Polyurethane, Vinyl Resin, Urea Resin, Phenolic Resin, Fluoro Resin, Silicon Resin, Acrylic Resin, Melamine Resin ), Epoxy Resin, Polycarbonate Resin, Divinyl benzene-Styrene Copolymer, Silk Powder, Cellulose, CI Pigment Yellow (CI Organic pigments, such as Pigment Yellow) and CI Pigment Orange, and composite pigments of these inorganic pigments and organic pigments.

Disinfectants include Hinookitiol, Triclosan, Trichloro Hydroxydiphenyl Ether, Chlorhexidine Gluconate Salt, Phenooxyethanol, Resorcin ( Resorcin, Isopropyl Methylphenol, Azulene, Salicylic Acid, Zinc Pyrithione, Benzalkonium Chloride, Photoresist No. 301 (Quarternium-51 , Photosensitizing Dye No.301, Quaternium-51), Sodium Mononitro Guaiacol, Undecylenic Acid, and the like.

Antioxidants include butylated hydroxyanisole, propyl gallate, erythorbic acid, etc., and pH adjusting agents include citric acid and sodium citrate. , Malic Acid, Sodium Malate, Fumaric Acid, Sodium Fumarate, Succinic Acid, Sodium Succinate, Sodium Hydroxide, Phosphoric Acid Dibasic Sodium Phosphate, and the like, and examples of the moisturizing agent include water-soluble low-molecular moisturizing agents, oil-soluble low-molecular moisturizing agents, water-soluble polymers, and fat-soluble polymers.

In addition, the compounding component which may be added in addition is not limited to this, and any of the above components can be compounded within a range not impairing the objects and effects of the present invention.

The oil-in-water skin care cosmetic composition according to the present invention also contains a cosmetic or dermatologically acceptable medium or base, and can be prepared in any formulation conventionally prepared in the art, for example, solutions, suspensions, It may be formulated as a cream, lotion or lotion, powder, ointment, spray or conceal stick, but is not limited thereto. These compositions can be prepared according to conventional methods in the art.

{Example}

Hereinafter, the present invention will be described in detail by examples. However, the following examples are only presented to understand the contents of the present invention, and the contents of the present invention are not limited to the following examples, and modifications, substitutions and insertions, etc., which are generally known in the art, can be performed. There is, and this is also included in the scope of the present invention.

<Production Example 1> Preparation of Examples 1 to 3 and Comparative Examples 1 to 6

Using a mixer, the water phase components including purified water and Carbopol 940 were mixed, and stirred while warming to 80 ° C to dissolve completely. After dissolving and dispersing the oily component containing the oil gelling agent and the oil using a separate mixer, the surfactant was mixed and homogenized by stirring while heating to 80 ° C. Thereafter, the oil phase component was emulsified using a homo mixer while slowly adding it to the water phase component. Cooling to 30 ° C to prepare an oil-in-water type skin care cosmetic composition of Examples 1 to 3 and an oil-in-water type skin care cosmetic composition of Comparative Examples 1 to 6 according to the present invention. The composition is shown in Table 1 below (unit:% by weight).

division			Example 1	Example 2	Example 3	Comparative Example 1	Comparative Example 2	Comparative Example 3	Comparative Example 4	Comparative Example 5	Comparative Example 6	Comparative Example 7
Paid	Surfactants	PEG-100 stearate	One	One	One	One	One	One	One	One	One	One
		Glyceryl stearate	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5
		Cetearyl alcohol	One	One	One	One	One	One	One	One	One	One
	Ester oil		Diisostearyl malate	10	7.5	10	10	10	10	10	7.5	10	10
		Phytosteryl isostearyl dimer dilinoleate	10	7.5	10	10	10	10	10	7.5	10	10
		Octyldodecanol	-	5	-	-	-	-	-	5	-	-
	Oil gelling agent	Distea admonium hectorite	One	-	-	-	-	One	0.5	-	-	-
		Ethyl cellulose	-	One	-	-	-	-	-	0.5	-	-
		Dextrin palmitate	-	-	One	-	-	-	-	-	0.5	2.5
	Silicone oil		Dimethicone	2	2	2	2	2	2	2	2	2	2
Awards	-	Purified water	To 100	To 100	To 100	To 100	To 100	To 100	To 100	To 100	To 100	To 100
	Moisturizer	glycerin	5	5	5	5	5	5	5	5	5	5
	Thickener	Carbopol 981	0.05	0.05	0.05	0.05	0.25	-	0.05	0.05	0.05	0.25
	corrector	Tromethamine	0.03	0.03	0.03	0.03	0.14	0.03	0.03	0.03	0.03	0.14

<Test Example 1> Evaluation of the formulation stability of the composition according to the content of the oil gelling agent and water thickener 1

1. Preparation of the composition

The compositions of Examples 1 to 3 and Comparative Examples 1 to 6 prepared in Preparation Example 1 were used.

2. Formulation stability evaluation method

The prepared compositions of Examples 1 to 3 and Comparative Examples 1 to 6 were stored in a thermostat to be frozen (-15 ° C.), refrigerated (0 ° C.), room temperature (25 ° C.), at temperatures of 30 ° C. and 45 ° C., weekly. Formulation stability was visually observed. In addition, 45 ° C → 30 ° C → frozen (-15 ° C) cycles of 8 hours each for 8 hours were performed, and weekly formulation stability was observed with the naked eye. Table 2 shows the results. ○ indicates a stable state because the formulation is not separated, and × indicates a state where the dosage form is separated and becomes unstable. In the case of the unstable state, the time point at which phase separation was observed is indicated under the x mark. The photographs of the compositions of Examples 1 and 3 of Comparative Examples 1 to 3, which were confirmed through the naked eye for 4 weeks of formulation stability at 45 ° C., are shown in FIG. 1.

3. Formulation stability evaluation result

Temperature	Example 1	Example 2	Example 3	Comparative Example 1	Comparative Example 2	Comparative Example 3	Comparative Example 4	Comparative Example 5	Comparative Example 6
frozen	○	○	○	○	○	○	○	○	○
cold storage	○	○	○	○	○	○	○	○	○
Room temperature	○	○	○	○	○	× 3 weeks	○	○	○
30 ℃	○	○	○	× 3 weeks	○	× 2 weeks	○	○	○
45 ℃	○	○	○	× 1 week	× 2 weeks	× 1 week	× 3 weeks	× 3 weeks	× 3 weeks
cycle	○	○	○	× 1 week	× 1 week	× 1 week	○	○	○

As shown in Table 2 and Figure 1, for the composition of Examples 1 to 3 according to the present invention comprising an oil gelling agent and a carbomer-based thickener in a preferred content range, frozen, refrigerated, room temperature, 30 ℃, 45 It has been shown to maintain formulation stability without phase separation for 4 weeks at both ° C and cycle conditions.

In contrast, in the case of the composition of Comparative Example 1 that does not contain an oil gelling agent, phase separation was observed at week 3 at 30 ° C, phase separation was observed at week 1 at 45 ° C, and week 1 at cycle condition Phase separation was observed.

In the case of the composition of Comparative Example 2, which does not contain an oil gelling agent, contains a carbomer-based thickener in excess of a desired content (0.03 to 0.2% by weight), and contains 0.14% by weight of a neutralizing agent, at 2 weeks at 45 ° C Phase separation was observed, and phase separation was observed at week 1 under cycle conditions. Through this, it was found that the composition cannot be stabilized only by increasing the amount of the carbomer-based thickener.

In the case of the composition of Comparative Example 3, which does not contain a carbomer-based thickener, phase separation was observed at 3 weeks at room temperature, phase separation was observed at 2 weeks at 30 ° C, and phase 1 at 45 ° C. Separation was observed, and phase separation was observed at week 1 under cycle conditions.

In the case of the compositions of Comparative Examples 4 to 6 containing the oil gelling agent below the lower limit of the preferred content (0.6 to 2% by weight), phase separation was observed at 3 weeks at 45 ° C.

<Test Example 2> Formulation stability evaluation of the composition according to the content of the oil gelling agent and water thickener 2

Through the test example 1, in the case of the compositions of Examples 1 to 3 including both the oil gelling agent and the carbomer-based thickener, it was confirmed that the formulation stability is excellent, and accordingly, the preferred content range of the oil gelling agent and the carbomer-based thickener and To specifically evaluate the ratio, the following experiment was performed.

1. Preparation of the composition

In Preparation Example 1, the composition was prepared in the same manner as in Example 3, except that the oil gelling agent, dextrin palmitate, and carbomer-based thickener, Carbopol 981, were mixed in the composition shown in Table 3 below. ).

2. Formulation stability evaluation method

The composition prepared in the composition shown in Table 3 was stored in a thermostat to freeze (-15 ° C.), refrigerate (0 ° C.), room temperature (25 ° C.), 30 ° C., and 45 ° C. for weekly formulation stability. Did. In addition, 45 ° C → 30 ° C → frozen (-15 ° C) cycles of 8 hours each for 8 hours were performed, and weekly formulation stability was observed with the naked eye. Table 3 shows the results.

<Evaluation criteria>

○: Stable formulation in which formulation stability is maintained without phase separation for 4 weeks at all conditions of freezing, refrigeration, normal temperature, 30 ° C, 45 ° C, and cycle conditions.

Δ: Formulation stability is maintained without phase separation for 4 weeks under frozen, refrigerated, and room temperature conditions, but phase separation occurs within 4 weeks at 45 ° C and cycle conditions.

×: Unstable formulation in which phase separation occurs within 4 weeks even at room temperature.

3. Formulation stability evaluation result

division		Award Winner (Carbopol 981)
		0.02	0.03	0.05	0.1	0.2	0.25
Oil gelling agent (Dextrin palmitate)	0.5	×	×	×	×	×	×
	0.6	×	×	×	×	△	○
	0.8	×	△	○	○	○	○
	One	×	△	○	○	○	○
	2	×	△	○	○	○	○
	2.5	×	○	○	○	○	○

As shown in Table 3, when the oil gelling agent and carbomer-based thickener were included in a preferred content range and ratio, there was no phase separation for 4 weeks, or only part of the separation was found to maintain formulation stability. On the other hand, when the oil gelling agent and carbomer-based thickener below a preferred content range were included, it was confirmed that the formulation stability was poor. At this time, it was found that even if one component of the oil gelling agent and the carbomer-based thickener has a desirable content and the other components exceed the preferred content range, the formulation stability is maintained. However, in this case, as can be seen from the following Test Example 4, it was confirmed that the spreadability was poor in terms of the feeling of use and the stickiness became severe. Therefore, it can be seen that in order to achieve the object of the present invention, the oil gelling agent and the carbomer-based thickener included in the composition should be included in a desirable content.

<Test Example 3> Evaluation of the viscosity change of the composition according to the component

1. Preparation of the composition

The compositions of Examples 1 to 3 and Comparative Examples 1 to 6 prepared in Preparation Example 1 were used.

2. Viscosity evaluation method

Viscosity was measured using a Brookfield Viscometer (Brookfield Viscometer LVDV-II, Spindle No. 3, 12 rpm, 2min), and the results are shown in Table 4 and FIG. 2 (unit: cps).

3. Results of viscosity evaluation

division	Example 1	Example 2	Example 3	Comparative Example 1	Comparative Example 2	Comparative Example 3	Comparative Example 4	Comparative Example 5	Comparative Example 6
Early manufacturing	4,100	4,500	4,000	3,900	3,600	3,500	4,000	4,200	4,100
1 day	7,000	7,900	7,980	4,500	4,600	3,600	5,100	5,500	5,300
7 days	6,950	7,850	7,980	4,400	4,650	3,500	5,100	5,800	5,500
14 days	6,990	7,900	7,900	4,400	4,600	3,000	5,120	5,800	5,500
21 days	7,000	7,900	7,880	4,000	4,300	3,000	5,100	5,500	5,500
28 days	7,000	7,890	7,900	3,500	4,000	2,500	4,500	4,700	4,800

As shown in Table 4 and Figure 2, in the case of the compositions of Examples 1 to 3 comprising the oil gelling agent and carbomer-based thickener in a preferred content range and ratio, the first day (next day, the day after preparation) viscosity rises rapidly And, while the increased viscosity is maintained for 4 weeks, in the case of the compositions of Comparative Examples 1 to 6, it can be seen that the next day the viscosity increase width is less than the initial production, and the state of relatively low viscosity persists for 4 weeks. In addition, in the case of the compositions of Comparative Examples 1 to 6, it was confirmed that the viscosity began to decrease from the third week onwards, and through this, the formulation stability was not maintained for a long time while the viscosity was maintained below the 6,000 cps reference value. It can be expected that this collapsing problem will occur.

<Test Example 4> Evaluation of the usability of the composition according to the ingredients

1. Preparation of the composition

The compositions of Examples 1 to 3 and Comparative Examples 1, 2 and 7 prepared in Preparation Example 1 were used.

2. Usability evaluation method

The composition of Examples 1 to 3 and Comparative Examples 1, 2 and 7 was applied to 50 women 20 to 40 years of age without skin disease and allergic symptoms and no skin hypersensitivity reaction history, and then spreading, The overall feeling of moisture, adhesion, elasticity, stickiness and gloss was evaluated by a 10-point scale. The results are shown in FIG. 3 below.

3. Results of usability evaluation

As can be seen from the results of Figure 3, in the case of the compositions of Examples 1 to 3 according to the present invention comprising an oil gelling agent and a carbomer-based thickener in a preferred content range, spreadability, moisture, adhesion, elasticity, stickiness and gloss The overall feeling of use was found to be excellent.

On the other hand, in the case of the composition of Comparative Example 1, which does not contain an oil gelling agent, the moisture sensation was slightly higher than that of the compositions of Examples 1 to 3, and the spreadability was equal, but other adhesion, elasticity, It was found that the feeling of stickiness and glossiness was poor.

In the case of the composition of Comparative Example 2, which does not contain an oil gelling agent and contains a carbomer-based thickener in excess of a desirable content (0.03 to 0.2 wt%), the moisture sensation was slightly higher than that of the compositions of Examples 1 to 3. B, the spread feeling, the feeling of use at the beginning, was markedly low, and the feeling of use for other adhesion, elasticity, stickiness and gloss was also lowered.

In the case of the composition of Comparative Example 7 containing the oil gelling agent in a preferred content (0.6 to 2% by weight) in 2.5% by weight, compared to the compositions of Examples 1 to 3, the adhesion, elasticity, spreadability, stickiness, moisture, and In all aspects of gloss, the feeling of use was found to be inferior, especially the stickiness and the spreadability were significantly reduced.

Although the present invention has been described in connection with the preferred embodiments mentioned above, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will include such modifications or variations as long as they belong to the subject matter of the present invention.

Claims (10)

1. Oil phase components including oils and oil gelling agents; And

   An oil-in-water skin care cosmetic composition comprising an aqueous phase component comprising water and a carbomer-based thickener.
2. According to claim 1,

   The mixing ratio of the oil component and the water component is 30:70 to 5:95, based on weight, oil-in-water type skin care cosmetic composition.
3. According to claim 1,

   The oil is characterized in that the ester-based oil, silicone-based oil or a mixture thereof, oil-in-water skin care cosmetic composition.
4. According to claim 1,

   The content of the oil is characterized in that 2 to 25% by weight relative to the total weight of the composition, oil-in-water skin care cosmetic composition.
5. According to claim 1,

   The oil gelling agent is characterized in that at least one selected from the group consisting of disteadimonium hectorite, ethyl cellulose and dextrin palmitate, oil-in-water skin care cosmetic composition.
6. According to claim 1,

   The content of the oil gelling agent is characterized in that 0.6 to 2% by weight relative to the total weight of the composition, oil-in-water skin care cosmetic composition.
7. According to claim 1,

   The content of the carbomer-based thickener is characterized in that 0.03 to 0.2% by weight relative to the total weight of the composition, oil-in-water skin care cosmetic composition.
8. According to claim 1,

   The mixing ratio of the carbomer-based thickener and the oil gelling agent is 1: 3 to 67 based on weight, oil-in-water type skin care cosmetic composition.
9. According to claim 1,

   It characterized in that it is formulated as an anti-aging functional cosmetic by containing an ingredient having anti-aging activity as an active ingredient, an oil-in-water type skin care cosmetic composition.
10. According to claim 1,

    An oil-in-water type skin care cosmetic composition comprising a component having an activity for improving skin texture as an active ingredient and formulated into a functional cosmetic for improving skin texture.

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