KR101665756B1 - oil-in-water emulsified cosmetic composition with low viscosity comprising high content silicone derivatives for skin moisturing effect - Google Patents

Abstract

The present invention relates to a low viscosity, water-in-oil type emulsion cosmetic composition for moisturizing skin containing a high-content silicone derivative, and more particularly to a cosmetic composition comprising 20 to 30% by weight of a polyol moisturizer; 1 to 5% by weight of a double-comb polyether type silicone emulsifier; 10-25% by weight of a silicone derivative; From 0.1 to 1% by weight; And purified water in a residual amount. [2] The present invention relates to a water-in-oil type emulsion-type cosmetic composition for skin moisturizing.
The composition of the present invention has formulation stability and skin stability. In addition, since fine particle emulsion of less than 2 μm is formed to provide an excellent hydration function on the skin, it is mixed with water even after application without water removal after cleansing, and is excellent in skin moisturizing ability, ≪ / RTI >

Description

Technical Field [0001] The present invention relates to a low-viscosity, water-in-oil type emulsion cosmetic composition for skin moisturizing containing a high-content silicone derivative,

The present invention relates to a low viscosity, water-in-oil type emulsion cosmetic composition for moisturizing skin containing a high-content silicone derivative, and more particularly to a cosmetic composition comprising 20 to 30% by weight of a polyol moisturizer; 1 to 5% by weight of a double-comb polyether type silicone emulsifier; 10-25% by weight of a silicone derivative; From 0.1 to 1% by weight; And purified water in a residual amount. [2] The present invention relates to a water-in-oil type emulsion-type cosmetic composition for skin moisturizing.

In general, water-in-oil or water-in-oil type emulsions have characteristics that do not mix well with water. This is due to the oil components contained in the emulsion. So after cleansing, remove the water with a towel and make the cosmetic. However, the skin will dry out for 5 to 5 minutes before removing the water and applying cosmetics. At this point, the skin will be damaged.

Therefore, it was devised a special beauty method of applying cosmetics with moisture remaining on the skin without removing the water with a towel. These cosmetics should have the characteristics of mixing well with water. Soluble type is a common type of formulation that mixes well with water. The solubilized type is a formulation in which water-insoluble oil dissolves in the micelles of the surfactant and is transparent. Most of the water-soluble components are mixed with water of the same nature. However, the solubilization formulation of low viscosity type is mixed with water when it is applied in a state in which moisture is left on the skin, but it does not adhere on the skin and is turned over. In addition, a gel-type solubilization formulation having a high viscosity is also mixed with water if it is applied in a state in which moisture remains on the skin. However, since there is almost no oil-soluble ingredient, the skin becomes dry quickly and the skin is tightened due to the increase.

Therefore, it is necessary to develop an emulsifying type cosmetic which contains a lot of useful ingredients for moisturizing the skin, and when the product is applied in a state of moisture on the skin, the formulation of the product and the water component are instantly friendly to each other.

Accordingly, the present inventor has filed a patent application for a cosmetic composition containing a high-content silicone derivative in the registered patent 10-1288236 and the inventor's application (Application No. 10-2012-0158702). However, in the conventional high-content derivative compositions, the affinity of the emulsifier with water was low, so that it gave a feeling of slippery feeling upon contact with water, and stability at high temperature showed slight unstable phase change above a certain temperature. In addition, there was a lack of water affinity and the ability to achieve a sensation of feeling of good and prudent skin.

Accordingly, the inventors of the present invention have found that when a high-content silicone emulsion composition prepared by using a double-comb-like polyehter silicone as a main emulsifier contains a silicone derivative in a high content and is applied in a state of water, the product formulation and the aqua component Skin smoothness, skin roughness and the like while providing soft spreading and silky sensory feel on the skin while being instantly friendly, and completed the present invention.

Accordingly, an object of the present invention is to provide a polyol moisturizer comprising 20 to 30% by weight of a polyol moisturizer; 1 to 5% by weight of a double-comb polyether type silicone emulsifier; 10-25% by weight of a silicone derivative; From 0.1 to 1% by weight; And purified water in an amount remaining in the water-based emulsion-type cosmetic composition for skin moisturizing.

Another object of the present invention is to provide a curable composition comprising 5 to 15% by weight of cetyl dimethicone, 1 to 5% by weight of a dimethicone / vinyl dimethicone crosspolymer, 10% by weight, decamethylcyclopentasiloxane 1 to 5% by weight, Bis-PEG / PPG-20/5, Pigment-20/5 dimethicone (Bis- 1 to 5% by weight of methoxy PEG / PPG-20/5 dimethicone and methoxy PEG / PPG-25/4 dimethicone, 10 to 20% by weight of glycerine, 1 to 8% by weight of butylene glycols, 1 to 8% by weight of dipropylene glycol, 1 to 3% by weight of glycereth-26, from 0.1 to 1% by weight of an inulin lauryl cabamate, 0.1 to 1% by weight of a hydroxyethyl acrylate / sodium acryloyldimethyltaurate 0.01 to 0.1% by weight of a hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, and purified water as a balance. And to provide an underwater type emulsion cosmetic composition for skin moisturizing.

In order to accomplish the object of the present invention, the present invention provides a composition comprising 20 to 30% by weight of a polyol moisturizer; 1 to 5% by weight of a double-comb polyether type silicone emulsifier; 10-25% by weight of a silicone derivative; From 0.1 to 1% by weight; And purified water in an amount remaining in the water-in-oil type emulsion-type cosmetic composition for skin moisturization.

In order to achieve another object of the present invention, the present invention provides a curable composition comprising 5 to 15% by weight of cetyl dimethicone, 1 to 5% by weight of a dimethicone / vinyl dimethicone crosspolymer, 10% by weight, decamethylcyclopentasiloxane 1 to 5% by weight, Bis-PEG / PPG-20/5, Pigment-20/5 dimethicone (Bis- 1 to 5% by weight of methoxy PEG / PPG-20/5 dimethicone and methoxy PEG / PPG-25/4 dimethicone, 10 to 20% by weight of glycerine, 1 to 8% by weight of butylene glycols, 1 to 8% by weight of dipropylene glycol, 1 to 3% by weight of glycereth-26, from 0.1 to 1% by weight of an inulin lauryl cabamate, 0.1 to 1% by weight of a hydroxyethyl acrylate / sodium acryloyldimethyltaurate 0.01 to 0.1% by weight of a hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, and purified water as a balance. There is provided an underwater type emulsion cosmetic composition for skin moisturizing.

Hereinafter, the present invention will be described in detail.

The present invention

20 to 30% by weight of a polyol moisturizer;

1 to 5% by weight of a double-comb polyether type silicone emulsifier;

10-25% by weight of a silicone derivative;

From 0.1 to 1% by weight; And

Wherein the water-in-oil type emulsion-type cosmetic composition for skin moisturization is characterized by comprising purified water as a residual amount.

The polyurea moisturizer may be selected from the group consisting of glycerine, dipropylene glycol, butylene glycol, glycereth-26 and methyl gluceth- 20). ≪ / RTI > More preferably, the total composition of the present invention contains 10 to 20% by weight of glycerin, 1 to 8% by weight of butylene glycols, 1 to 8% by weight of dipropylene glycol, glyceryl-26 1 to 3% by weight of glycerin-26 and 0.01 to 2% by weight of methyl gluceth-20, and the ratio of the polyol moisturizer to the total composition is in the range of 20 to 30% by weight The relative proportions of each of the above materials can be controlled. The relative proportions of each of the above materials can be selectively adjusted as desired by those skilled in the art.

The silicone derivative may be one or more selected from the group consisting of cetyl dimethicone, dimethicone / vinyl dimethicone crosspolymer and decamethylcyclopentasiloxane. Preferably 5 to 15% by weight of cetyl dimethicone, 3 to 10% by weight of dimethicone / vinyl dimethicone crosspolymer and 1 to 10% by weight of decamethylcyclopentasiloxane, 5% by weight, and the relative proportions of the respective materials can be adjusted within a range of 10-25% by weight of the silicone derivative with respect to the total composition. The relative proportions of each of the above materials can be selectively adjusted as desired by those skilled in the art.

Cetyl Dimethicone is a synthetic silicone-based polymer mainly used as a foam inhibitor and a water vapor barrier. It is also called a silicone polymer. Cetyl dimethicone has a structure in which dimethicone has a hydrocarbon-based cetyl group, which is more compatible with hydrocarbon-based compounds than dimethicone, thus improving the safety of the formulation.

Dimethicone / Vinyl Dimethicone Crosspolymer is also called Dimethylpolysiloxane Elastomer Powder, Elastomer Powder, Crosslinked Elastomeric Silicone, and is a white powder cross-linked vinyl with dimethicone polymer to facilitate its use It is used in dispersed in aqueous solution of surfactant. It is excellent in absorbing power against oil and sebum, has excellent softness in dry state, has no tackiness or oiliness, and gives a light and smooth feel. Dimethicone / vinyl dimethicone crosspolymer raises the viscosity of the formulation and increases its stability.

The main role of the two cetyl dimethicone and dimethicone / vinyl dimethicone crosspolymers is emollient. Emollients, also called skin conditioners or softeners, are ingredients that help keep your skin soft and supple. The above two raw materials enable the preparation of an emulsion cosmetic composition having an improved feeling of use and skin moisturizing ability while enhancing the stability of the formulation.

Decamethylcyclopentasiloxane has a synonym of cyclomethicone and is a volatile cyclic silicone oil that softens and lightens the feeling of use.

The thickener is used to control the cosmetic viscosity after emulsification and may be any conventional thickening agent, including, but not limited to, carbomer, Inulin lauryl cabamate, hydroxyethyl Acrylate / sodium acryloyldimethyltaurate copolymer (Hydroxyethylacrylate / sodium acryloyldimethyltaurate copolymer). Preferably 0.1 to 1% by weight of carbomer, 0.1 to 1% by weight of inulin lauryl carbamate, 0.01 to 0.1% by weight of hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, The relative proportions of the respective materials can be adjusted within the range of 0.1 to 1% by weight of the thickener. The relative proportions of each of the above materials can be selectively adjusted as desired by those skilled in the art.

The silicone emulsifier (silicone surfactant) of the present invention is a silicone polyether, and is represented by polyether-modified silicone or polyether-modified polysiloxane. Silicone emulsifiers are one kind of silicone derivatives, which can be calculated by including them in the total content range of silicone derivatives. The silicone polyether is not limited thereto, but has the following types of chemical formulas (1) to (4).

A is a natural number of 15 or more, b is a natural number of 1 or more, c is a natural number of 1 to 6, d is a natural number of 1 or more, and d is a natural number of 1 or more. In the above formulas (1) to (4), R1 is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, E is a natural number of 0 to 300, f is a natural number of 0 to 6, and g is a natural number of 20 to 500.

The hydrocarbon group of R 1 is preferably a linear or branched hydrocarbon group having 1 to 8 carbon atoms, and most preferably has a methyl group.

The term 'double-comb polyether type silicone emulsifier' in the present invention means a branch-type comb-like silicone polyether or multi type silicone polyether represented by the above formula (1) .

The content of the double-comb polyether type silicone emulsifier in the cosmetic composition of the present invention is not limited thereto. Preferably 1 to 5% by weight.

In the present invention, the term "single polyether type silicone emulsifier" means a silicone polyether having the form of a liner represented by the above formulas (2) to (4).

The silicone emulsifier of the present invention is preferably a double-comb polyether type silicone emulsifier having the basic structure of formula (1). The double-comb polyether type silicone emulsifier may be, but not limited to bis-PEG / PPG-20/5 PEG / 20/5 dimethicone / PPG-20/5 Dimethicone), Methoxy PEG / PPG-25/4 Dimethicone Bis-Phage-Phosphate-16/16 Phage / 16/16 dimethicone (bis-PEG / PPG-16/16 PEG / PPG-16/16 dimethicone), and the above materials may be used singly or in combination, The relative proportions of the respective materials can be adjusted within the range of 1 to 5% by weight of the silicone emulsifier. The relative proportions of each of the above materials can be selectively adjusted as desired by those skilled in the art.

The present invention also relates to a composition comprising 5 to 15% by weight of cetyl dimethicone, 1 to 10% by weight of dimethicone / vinyl dimethicone crosspolymer, 1 to 10% by weight of decamethylcyclopentasiloxane (Bis-PEG / PPG-20/5 PEG / PPG-20/5 Dimethicone) and Bis-PEG / PPG-20 / 1 to 5% by weight of methoxy PEG / PPG-25/4 dimethicone, 10 to 20% by weight of glycerine, 1 to 8% by weight of Butylene Glycol, 1 to 8% by weight of dipropylene glycol, 1 to 3% by weight of glycereth-26, 0.01 to 2% by weight of methyl gluceth-20, 0.1 to 1% by weight of a carbomer, 0.1 to 1% by weight of an inulin lauryl cabamate, a hydroxyethyl acrylate / sodium arc Roil dimethyl taurate copolymer (Hydroxyethylacrylate / sodium acryloyldimethyltaurate copolymer) 0.01 to 0.1 provides an in-water type emulsion a cosmetic composition for moisturizing skin, characterized in that comprising an% by weight and the remaining amount of purified water.

Silicone derivatives are characterized by their low surface tension and wetting properties compared to conventional hydrocarbon compounds. The water-in-oil type emulsion composition containing a silicone derivative is a first-stage cosmetic product that is applied after cleansing in a state where the skin remains water-free (for example, without removing water with a towel) . However, when it is a low-viscosity type and contains a high-content silicon derivative, it is easily separated. However, the cosmetic composition of the present invention uses a double-comb polyether type silicone emulsifier as a pouring agent and is excellent in formulation stability and preferably in a fine particle emulsion of 2 탆 or less, To form an extinguishing effect on the fine particles of the skin, thereby providing an excellent hydration function on the skin and excellent moisturizing and feeling. In particular, the cosmetic composition of the present invention has a low viscosity type as well as a high content of a silicone derivative, and thus has excellent skin moisturizing power.

This is well illustrated in the embodiments of the present invention.

As a result, emulsions using a single polyether type silicone emulsifier were unstable due to phase separation at a high temperature (37 ° C and 45 ° C). However, The emulsion with the double-comb polyether type silicone emulsifier was stable even at high temperature.

Also, as a result of comparing emulsion particle sizes of cosmetic compositions of various compositions, it was found that the emulsion particle size of the cosmetic composition using the double-comb polyether type silicone emulsifier of the present invention was about 1 μm on average, . However, the emulsion using a single polyether type silicone emulsifier had an average particle size of about 10 μm, and the average particle size was relatively large and not uniform.

In addition, the cosmetic composition of the present invention is characterized in that it is applied in a state of removing skin moisture after skin cleansing. This is possible because the cosmetic composition of the present invention has a high affinity with water, has a low viscosity type, and has a high content of a silicone derivative and has excellent skin moisturizing properties.

In one embodiment of the present invention, water was slowly titrated into cosmetic compositions of various compositions in order to evaluate the degree of affinity with water, and the mutual affinity was monitored. As a result, cosmetic compositions using the double-comb polyether type silicone emulsifier of the present invention The compositions were found to be excellent in spreading affinity with each other.

In another embodiment of the present invention, the cosmetic composition using the double-comb polyether type silicone emulsifier of the present invention was distributed to the subjects, and after the water wash twice a day (morning and evening) To evaluate the moisturizing effect (skin moisture content, skin gloss, skin roughness). As a result, it was confirmed that the use of the composition of the present invention resulted in an increase in skin moisturizing power, skin luster, and reduced skin roughness, indicating significant differentiation.

The contents of the cosmetic composition containing a high-content silicone derivative are disclosed in the registered patent 10-1288236 and the inventor's application (Application No. 10-2012-0158702). In the conventional high-content derivative compositions, the affinity of the emulsifier with water was low, so that it gave a feeling of slippery feeling when contacted with water, and stability at high temperature showed slight unstable phase change above a certain temperature. In addition, there was a lack of water affinity and the ability to achieve a sensation of feeling of good and prudent skin.

The present invention solves the above problems and implements the emulsion stability, water affinity, and the sensation of use of a sharp skin by applying a double comb-like polyether silicone emulsifier. That is, the composition of the present invention has high affinity with water and improved stability over time, and is composed of average particles of micro fine particle emulsion type, thereby realizing a cosmetic composition which provides a soft silky feeling at the time of skin application.

The cosmetic composition for moisturizing the skin according to the present invention is characterized by further comprising at least one additive selected from the group consisting of fragrances, cosmetic active ingredients, nutritional ingredients, neutralizing agents and extenders, the types of which are well known to those skilled in the art And can be optionally added according to the purpose.

The cosmetic composition for skin moisturizing according to the present invention can be used variously in the production of cosmetics for skin moisturization and skin protection. The composition of the present invention is not limited by its formulation, but may take a formulation known in the art. For example, the formulations of the cosmetic composition according to the present invention can be formulated into various forms such as, for example, various lotions, milk lotion, nutrition lotion, massage cream, nutritional cream, hand cream, essence, nutrition essence, cleansing lotion, cleansing cream, But is not limited thereto. The cosmetic composition of the present invention may contain conventional cosmetic ingredients such as a solvent, an organic pigment, an emulsifiable concentrate, a surfactant that can be mixed with a cosmetic, a silicon-containing surfactant, a thickener, a stabilizer, an antiseptic, And can be compounded within the range not to impair the purpose and effect.

The cosmetic composition according to the present invention may further comprise known skin moisturizers and the like.

The composition of the present invention has formulation stability and skin stability. In addition, since fine particle emulsion of less than 2 μm is formed to provide an excellent hydration function on the skin, it is mixed with water even after application without water removal after cleansing, and is excellent in skin moisturizing ability, ≪ / RTI >

Fig. 1 shows the results of comparing the formulation stability with respect to each emulsion composition (Preparation Example and Comparative Examples 1 to 3).
Fig. 2 shows the result of measuring the emulsion particle size for each emulsion composition (A: Preparation Example, B: Comparative Examples 1 to 3).
Fig. 3 shows the result of monitoring the affinity to water for each emulsion composition (A: Preparation Example, B: Comparative Examples 1 to 3).

Hereinafter, the present invention will be described in detail.

However, the following examples are illustrative of the present invention, and the present invention is not limited to the following examples.

≪ Example 1 >

Preparation of Si / W type emulsion containing high amount of silicone derivative

An aqueous type cosmetic composition containing the emulsion (preparation example) of the present invention and the high-content silicone derivatives of Comparative Examples 1 to 3 was prepared with the composition (unit: wt%) shown in Table 1 below.

Raw materials and their contents (% by weight) included in Production Examples and Comparative Examples Raw material name Manufacturing example Comparative Example 1 Comparative Example 2 Comparative Example 3 1. Purified water Balance Balance Balance Balance 2.
Glycerin and polyol moisturizer glycerin 13 13 13 13 Dipropylene glycol (DPG) 6 6 6 6 1.3 Butylene glycol (1.3 BG) 6 6 6 6 Liponic EG-1 (Glycereth-26) One One One One Glucam E-20 (methyl gluceth-20) 0.5 0.5 0.5 0.5 3. Silicone emulsifier
double-comb polyether type:
Abilwax 80 (Bis-PEG / PPG-20/5 PEG / PPG-20/5 Dimethicone and Methoxy PEG / PPG-25/4 Dimethicone) 2.5 - - - 3. Silicone emulsifier single polyether type: PEG-11 methyl ether diemthicone 3 3 3 4. Silicone wax cetyl dimethicone
(Cety diemthicone, Abilwax 9801) 10 10 10 10 5. Silicone elastomer
KSG-15 (Decamethylcyclopentasiloxane) 2.2 2.2 2.2 2.2 KSG-19 (dimethicone / vinyl dimethicone crosspolymer) 3 3 3 3 6. Carbomer 0.2 0.2 0.2 0.2 7. inulin lauryl carbamate 0.1 0.05 - - 8. Hydroxyethylacrylate / sodium acryloyldimethyltaurate copolymer 0.05 - 0.05 - Total content (%) 100 100 100 100

The raw material 1, the raw material 2, and the raw material 7 in Table 1 are weighed and stirred at 70 to 75 ° C to dissolve completely (manufactured by Water). Thereafter, the raw materials 3 to 5 are weighed and homogenized at 75 to 80 ° C for 1 hour at high speed (3000 to 5000 rpm) using an Agi-mixer for high viscosity, and dissolved (manufactured by Oji Paper Co., Ltd.). In the mixing tank, the oil phase is gradually added to the above-prepared water, stirred and mixed and emulsified. Thereafter, the raw material 6 (thickener) and the raw material 8 are added and dispersed. When the emulsification process is completed, cooling (30 캜) and defoaming are performed, and then cooling is terminated at 30 캜.

< Experimental Example  1>

Verification of formulation stability and human stability against temperature

<1-1> Formulation stability verification (product Phase separation  Stability evaluation)

In order to measure the formulation stability of the cosmetic composition shown in Table 1, the materials were prepared, and then placed in an airtight container at room temperature for 1 day and aged. Each material was observed for one month according to the aging stability test method (45 ° / 75% RH thermo-hygrostat) under the conditions shown in Table 2 below. Test items were checked for appearance (hue, separation, sedimentation, removal) and physical properties (viscosity, pH) of the contents. The results are shown in Table 2.

Formulation stability evaluation Manufacturing example Comparative Example 1 Comparative Example 2 Comparative Example 3 Room temperature (25 캜) stability stability stability stability 4 ℃ stability stability stability stability 37 ℃ stability Instability Instability Instability 45 ° C stability Instability Instability Instability

Evaluation results As shown in FIG. 1, the emulsion of the present invention showed stability at all temperature conditions, but the comparative examples in which a single polyether type silicone emulsifier was added showed instability under several conditions.

<1-4> Verification of human stability On a patch  Safety evaluation

The stability of human skin (skin) was tested by skin patch test at the Clinical Support Center of Oriental Biotechnology Industry of SEM, an accredited clinical laboratory. The test subjects were wiped with 70% ethanol and dried. Then, the emulsion of the present invention was applied to the patch in an amount of 25 uL for 24 hours, and then the patch was removed. The marking pen was used to mark the test area, and the skin reaction was classified according to the judgment criteria of the International Contact Dermatitis Study Group for 30 minutes, 24 hours, and 48 hours, respectively. 3].

It can be seen from Table 3 that the emulsion of the present invention is unstimulated.

< Experimental Example  2>

Emulsion  Character rating

<2-1> Emulsion  Particle size analysis

The particle size of the cosmetic composition shown in Table 1 was measured with an optical microscope at a magnification of 400 to analyze the size of emulsion particles according to the type of silicone emulsifier used. The optical microscope used was a model Axio Scope A1 with a DIC (Differential Interference Contrast) function as an optical microscope of Carl Zeiss

As a result, as shown in FIG. 2, the emulsion of the present invention had an average particle size of about 1 μm, showing a particle flow phenomenon close to the micro-emulsion as a whole.

However, in the case of Comparative Examples 1 to 3, the average particle size was about 10 占 퐉, so that the size of the wasted particles was relatively large and the stability of the emulsion was considered to be poor.

<2-2> Water aqua ) &Lt; / RTI &gt;

In order to evaluate the affinity with the aqua component, 3 g of each sample was quantitatively added to the Petri dish, 10 g of the aqua water was slowly titrated, and the mutual affinity for about 1 minute was monitored.

As shown in FIG. 3, in the case of the emulsion (Preparation Example) of the present invention, the spreading affinity was excellent when the aqua components were added to the sample, whereas in the case of Comparative Examples 1 to 3, no mutual affinity reaction was observed.

< Experimental Example  3>

Evaluation of moisturizing efficacy

In order to confirm the effect of the emulsion (preparation example) of the present invention on the amount of skin moisture and the skin mass, it was commissioned by IEC Korea, an accredited clinical institute. After 20 weeks of skin adaptation to 20 or more Korean women, the emulsion of the present invention was distributed to the subjects, and after washing twice a day (morning and evening) The product was applied. The skin moisturizing effect (skin moisture, skin luster, wrinkle improvement) was evaluated by measuring the device after using for the whole face for 6 weeks. (D0: initial state of skin, D0 imm: 1 minute after application, D42: skin condition after 6 weeks of application)

The results of each experiment were statistically analyzed using the statistical analysis program SPSS 14.0, and the normality of the data was verified by the Shapiro wilk test; Wilcoxon test (p <0.05) was used when the normality was satisfied (p> 0.05): Paired t-test (p <0.05)

<3-1> Estimation of skin moisture

Skin moisture was measured by measuring the capacitance (expressed as au) with a Corneometer CM825 (Courage and Khazaka, Germany) and assessing skin moisture within 30-40 μm below the stratum corneum (Table 4).

As a result, as shown in [Table 4], skin moisture was significantly increased immediately after use of the emulsion of the present invention and after 6 weeks, compared with before use.

<3-2> Evaluation of skin gloss

Skin gloss was measured with Skin Glossmeter (Delfin tech, Finland), which is a device that measures light reflected outside of the surface of the skin. The skin glossmeter light source has a 635nm red semiconductor diode laser and the surface diameter of the laser is 50μm. The unit of measurement is the skin gloss unit (au). The higher the skin gloss, the higher the measured value. Skin gloss measurement results are shown in Table 5 below.

As shown in [Table 5], skin glossiness was significantly increased immediately after use of the emulsion of the present invention and after 6 weeks as compared with before use.

<3-3> Skin roughness evaluation

To evaluate skin roughness and wrinkle degree, roughness degree on skin surface was evaluated by Ra, Rz and Rt values using a derma top fringe projector. The Fringe projector is an optical device that can acquire 3D image information quickly and uses gray-code and phase shift technology to measure the image.

In this test, the skin surface roughness of the test site was analyzed before application, immediately after application, and after 6 weeks. The parameters representing the roughness value are as follows.

Ra: Arithmetic average roughness, mm

Rz: Average roughness, mm

Rt: Total skin roughness, mm

The results of measurement of skin roughness before (T0) and immediately after (T0_imm) application of the emulsion of the present invention are shown in [Table 6].

The results of skin roughness measurement after use (T0) and 6 weeks (D42) of the emulsion of the present invention are shown in Table 7.

As shown in [Table 6] and [Table 7], skin roughness was significantly improved immediately after use of the emulsion of the present invention and 6 weeks after use (Paired t-test, p <0.05).

As described above, the present invention relates to a low viscosity, water-in-oil type emulsion cosmetic composition for moisturizing skin containing a high-content silicone derivative, and more particularly to a cosmetic composition containing 20 to 30% by weight of a polyol moisturizer; 1 to 5% by weight of a double-comb polyether type silicone emulsifier; 10-25% by weight of a silicone derivative; From 0.1 to 1% by weight; And purified water in a residual amount. [2] The present invention relates to a water-in-oil type emulsion-type cosmetic composition for skin moisturizing.

The composition of the present invention has formulation stability and skin stability. In addition, since fine particle emulsion of less than 2 μm is formed to provide an excellent hydration function on the skin, it is mixed with water even after application without water removal after cleansing, and is excellent in skin moisturizing ability, Which is highly industrially applicable.

Claims (9)

10 to 20% by weight of glycerine, 1 to 8% by weight of butylene glycols, 1 to 8% by weight of dipropylene glycol, 1 to 8% by weight of glycereth- 3% by weight of methyl gluceth-20, and 0.01 to 2% by weight of methyl gluceth-20;
Bis-PEG / PPG-20/5 dimethicone) and methoxypage / phyphage-20/5 dimethicone (Bis-PEG / PPG- A double-comb polyether type silicone emulsifier consisting of 1 to 5% by weight of a mixture of 25/4 dimethicone (Methoxy PEG / PPG-25/4 Dimethicone);
5 to 15% by weight of cetyl dimethicone, 1 to 5% by weight of dimethicone / vinyl dimethicone crosspolymer, 10% by weight and decamethylcyclopentasiloxane, and 1 to 5% by weight of decamethylcyclopentasiloxane;
0.1 to 1% by weight of carbomer, 0.1 to 1% by weight of inulin lauryl cabamate, 0.01 to 1% by weight of hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer 0.01 To 0.1% by weight;
And purified water as a remaining amount, wherein the water-in-oil type emulsion-type cosmetic composition for skin moisturizing comprises: delete delete delete delete delete The cosmetic composition according to claim 1, wherein the cosmetic composition further comprises at least one additive selected from the group consisting of a perfume, a cosmetic active ingredient, a nutritional ingredient, a neutralizing agent and an extender.
The cosmetic composition according to claim 1, wherein the emulsion has an average particle size of 2 탆 or less.
2. The composition of claim 1, wherein the composition is applied in a skin moisture free state after a skin wash.

Images