KR20150121409A - Method for stabilizing ascorbic acid 2-glucoside and a cosmetic composition containing the stabilized ascorbic acid 2-glucoside - Google Patents

Abstract

The present invention relates to a method for stabilizing ascorbic acid 2-glucoside (AA2G) inside a cosmetic composition and a cosmetic composition containing the stabilized ascorbic acid 2-glucoside and, more specifically, to a method for preventing discoloration of ascorbic acid 2-glucoside contained in the cosmetic composition by using a polymer containing a polyacrylate chain and improving stability of the composition comprising the same, and to a cosmetic composition containing the same.

Description

A method for stabilizing ascorbic acid 2-glucoside and a cosmetic composition containing stabilized ascorbic acid 2-glucoside and a cosmetic composition containing the stabilized ascorbic acid 2-glucoside,

The present invention relates to a method for stabilizing ascorbic acid 2-glucoside (AA2G) in a cosmetic composition and a cosmetic composition containing stabilized ascorbic acid 2-glucoside, and more particularly, The present invention relates to a method for preventing the discoloration of ascorbic acid 2-glucoside contained in a cosmetic composition using a polymer thickening agent containing a lactic acid ester, and a method for improving the stability of a composition of an oil-in- .

Vitamin C (ascorbic acid) has traditionally been used as a whitening functional ingredient. However, since the C-2 hydroxyl group of vitamin C is easily oxidized, there is a problem that when vitamin C is exposed to heat, light, water, oxygen, etc., it is easily oxidized and destroyed. Therefore, various vitamin C derivatives were synthesized to replace the C-2 hydroxy group to prevent oxidation while maintaining the whitening effect.

Ascorbic acid 2-glucoside is obtained by replacing the C-2 hydroxyl group of vitamin C with glucose. When applied to the skin, it can be seen to have the same effect as using vitamin C in the whitening function of the body, which is hydrolyzed with vitamin C and glucose by the α-glucosides of the cell wall and absorbed into the skin in the form of vitamin C . However, the solubility in water is increased due to the water-soluble glucose substituent, and the stability particularly in the aqueous solution state and in the presence of copper ion is high.

Unlike vitamin C, which maintains its activity in neutral and acidic conditions, ascorbic acid 2-glucoside has stability only in the neutral pH range. However, the pH of the 1% aqueous solution of ascorbic acid 2-glucoside is 2.3 and is strongly acidic. At present, in order to obtain the activity of ascorbic acid 2-glucoside, neutralization with KOH is carried out to adjust the pH to about 6, and the pH of the whole formulation is adjusted to 6 to 7, Citric acid / sodium citrate is used as a pH adjuster to prevent the decrease in the activity of the enzyme. However, since the viscosity of ascorbic acid 2-glucoside, citric acid and sodium citrate acts as a salt to lower the viscosity in an oil-in-water type formulation and discoloration of ascorbic acid 2-glucoside occurs at a high temperature due to formation of an unstable emulsion, There is a bad problem. Conventionally, creams containing ascorbic acid 2-glucoside have been developed as water-in-oil type. However, the water-in-oil type cream has a disadvantage that the use feeling is somewhat heavier than the underwater type, so there is a demand for an underwater type cream in terms of diversifying feelings.

Korean Patent Publication No. 2014-0006124 (published on Jan. 16, 2014)

Accordingly, the present inventors have searched for a method for stabilizing ascorbic acid 2-glucoside in a cosmetic composition, in particular, an underwater type cosmetic composition, and found that a polyacrylate chain instead of citric acid or sodium citrate, The viscosity of the ascorbic acid 2-glucoside can be maintained by controlling the pH of the formulation using the polymer thickening agent, and the present invention has been completed.

Accordingly, it is an object of the present invention to provide a method for stabilizing ascorbic acid 2-glucoside in a cosmetic composition and a cosmetic composition containing stabilized ascorbic acid 2-glucoside.

In order to accomplish the above object, the present invention provides an ascorbic acid 2-glucoside; A polymer comprising a polyacrylate chain; And a base.

The present invention also relates to a polymer comprising a polyacrylate chain; And a method for producing a cosmetic composition in which ascorbic acid 2-glucoside is stabilized using a base.

By using the method according to the present invention, the ascorbic acid 2-glucoside contained in the cosmetic composition can be stabilized and the formulation stability at a higher temperature can be more effectively increased compared with the conventional method using citric acid and sodium citrate, The viscosity drop of the emulsion and discoloration of the ascorbic acid 2-glucoside can be prevented.

In order to stabilize the ascorbic acid 2-glucoside contained in the cosmetic composition, Ascorbic acid 2-glucoside; A polymer comprising a polyacrylate chain; And a base.

Ascorbic acid 2-glucoside used in the present invention is a functional raw material showing whitening efficacy as a raw material for Japanese quasi-drugs. In the present invention, the ascorbic acid 2-glucoside is contained in an amount of 0.01 to 50.0% by weight, preferably 0.1 to 20.0% by weight based on the total weight of the composition. When the content is less than 0.01% by weight, the whitening effect is hardly exhibited. When the content is more than 50.0% by weight, it is difficult to secure the stability of the formulation due to the solubility limit of ascorbic acid 2-glucoside.

In the present invention, in order to stabilize the ascorbic acid 2-glucoside contained in the cosmetic composition, the activity of the ascorbic acid 2-glucoside can be maintained by using the polymer containing an acidic and anionic polyacrylate chain without neutralization The pH of the composition is adjusted. The polymer used in the present invention serves as a thickener and a pH adjusting agent. When the polymer is neutralized and used, when ascorbic acid 2-glucoside is added to cosmetics which are made into a polymer thickener, ions are generated by dissociation of ascorbic acid 2-glucoside in water, And then returned to a solution of an acidic solution having a low viscosity. Then, the polymer thickener for re-neutralization should be added again in order to increase it, and this method is troublesome to go through the neutralization process twice.

In the composition in which the polymer is added to adjust the pH, the pH is preferably in the range of 5 to 8. When a polymer containing a polyacrylate chain serving as a pH adjusting agent is used, the polymers are dispersed in a uniform network in the cosmetic composition, and when the hydrogen of the carboxyl group is dissociated, the negative charge is uniformly dispersed throughout the cosmetic composition . At this time, if ascorbic acid 2-glucoside is dissolved in cosmetics, dispersed negative charge can stabilize ascorbic acid 2-glucoside by electrostatic attraction to improve formulation stability and control pH by binding with dissociation of carboxy group hydrogen So that the pH of the entire cosmetic composition can be kept constant.

Although the range of the molecular weight of the polymer is not particularly limited, it is preferable that the polymer has a molecular weight of 750,000 to 4,000,000 daltons. Specifically, the polymer may be, for example, but not limited to, carbomer, acrylate / C10-30 alkyl acrylate crosspolymer, sodium polyacrylate, polyacrylic acid, acrylate copolymer, polyacrylate crosspolymer, etc. Can be used.

In the present invention, the polymer including the polyacrylate chain is not limited thereto. For example, carbomer, acrylate / C10-30 alkyl acrylate crosspolymer, sodium polyacrylate and the like can be used. In the present invention, the polymer is contained in an amount of 0.01 to 10.0% by weight, preferably 0.1 to 5.0% by weight based on the total weight of the composition. If the content is less than 0.01% by weight, the emulsion stability is not improved and the formulation stability may not be good. If the content is more than 10.0% by weight, the viscosity of the formulation may be increased and the feeling of use may be lowered.

In the present invention, it is preferable that the polymer containing a polyacrylate chain and the ascorbic acid 2-glucoside are used in a weight ratio of 1:10 to 1:40.

In addition, the present invention uses a base as necessary in order to neutralize ascorbic acid 2-glucoside. In the present invention, the base is not limited thereto. For example, tromethamine, triethanolamine, potassium hydroxide, L-arginine and the like can be used. In the present invention, the base is contained in an amount of 0.001 to 30.0% by weight based on the total weight of the composition. When the content is less than 0.001% by weight, it is difficult to control the pH for maintaining the activity of ascorbic acid 2-glucoside. When the content exceeds 30.0% by weight, the pH of the composition becomes high and the use thereof as a cosmetic becomes inadequate.

The cosmetic composition according to the present invention is not particularly limited in its formulation, but may be, for example, a composition of a solubilized or emulsified type, and more specifically, a composition of a cosmetic lotion (solubilized), an underwater type or a water- .

The present invention also provides a process for preparing an underwater-type cosmetic composition in which ascorbic acid 2-glucoside is stabilized,

1) preparing an aqueous phase mixture by mixing water-soluble raw materials;

2) preparing an oily phase mixture by mixing an oil-soluble raw material;

3) mixing a mixture of ascorbic acid 2-glucoside, a polymer containing a polyacrylate chain, and a base for neutralizing ascorbic acid 2-glucoside with purified water to obtain a mixture;

4) mixing the upper part of step 2) with the upper part of step 2); And

5) adding the mixture of step 3) to the mixture of step 4)

.

The present invention also provides a process for preparing a water-in-oil type cosmetic composition in which ascorbic acid 2-glucoside is stabilized,

1) preparing an aqueous phase mixture by mixing water-soluble raw materials;

2) preparing an oily phase mixture by mixing an oil-soluble raw material;

3) mixing a mixture of ascorbic acid 2-glucoside, a polymer containing a polyacrylate chain, and a base for neutralizing ascorbic acid 2-glucoside with purified water to obtain a mixture;

4) adding the mixture of step 3) to the upper part of step 1); And

5) mixing the oil phase of step 2) with the mixture of step 4);

.

The present invention also provides a process for preparing a cosmetic composition of the solubilized type in which ascorbic acid 2-glucoside is stabilized,

1) mixing the raw materials to produce a lotion; And

2) mixing a mixture of ascorbic acid 2-glucoside, a polymer containing a polyacrylate chain, and a base for neutralizing ascorbic acid 2-glucoside with purified water to obtain a mixture; And

3) adding the mixture of step 2) to the lotion of step 1);

.

In order to ensure the stability of the ascorbic acid 2-glucoside, the cosmetic composition according to the present invention is preferably prepared by injecting ascorbic acid 2-glucoside stabilized with an aqueous solution of a polymer containing an anionic polyacrylate chain at 50 ° C or lower The pH of the aqueous solution of ascorbic acid 2-glucoside to be added at this time is preferably in the range of 5 to 8. When the pH is out of the range, the activity of ascorbic acid 2-glucoside may decrease.

In addition, the composition according to the present invention may contain an appropriate amount of auxiliaries such as pigments, fragrances, preservatives and thickeners commonly used in the production of a cosmetic composition including an underwater type cosmetic composition, In an amount of 0 to 20.0% by weight.

According to the present invention, by using a polymer containing a polyacrylate chain, the acidity can be adjusted to an optimum range so that the stability and efficacy of the ascorbic acid 2-glucoside compound in the composition can be appropriately maintained. In addition, there is a problem in that the formulation stability of the composition containing conventional ascorbic acid 2-glucoside, especially the oil-in-water type formulation, is lowered because of the salt form of citric acid and sodium citrate used as a pH adjusting agent. However, since the present invention does not use citric acid and sodium salt as the pH adjusting agent, the stability of the formulation is high. As a result, the composition according to the present invention can stably contain ascorbic acid 2-glucoside, which is an excellent whitening active ingredient, without problems such as discoloration and decrease in activity.

The cosmetic composition according to the present invention is not particularly limited in its formulation, but may be applied to cosmetic compositions such as softening lotion, nutritional lotion, gel, lotion, and ultraviolet screening agent; A makeup cosmetic composition such as a foundation; A hair cosmetic composition such as a hair tonic, a hair essence or a hair treatment; It can be widely applied to other medicines and quasi-drugs.

Hereinafter, the present invention will be described more specifically based on examples and test examples of the present invention. However, the following examples and test examples are given for the purpose of more clearly expressing the present invention, and the content of the present invention is not limited to these examples and test examples.

[Test Example 1] Measurement of pH of aqueous solution of ascorbic acid 2-glucoside

An aqueous solution of ascorbic acid 2-glucoside was prepared using a polymer containing various polyacrylate chains as shown in Table 1 below. Specifically, in the following Table 1, A was prepared by completely dissolving ascorbic acid 2-glucoside in water at a ratio of ascorbic acid 2-glucoside: water = 20: 80 (weight ratio), B was a polymer: water = 5: 100 (Weight ratio) by mixing the polymer in water. In addition, ascorbic acid 2-glucoside was added to the solution of B so that the ratio of C: polymer: ascorbic acid 2-glucoside: water = 5: 20: 100 (weight ratio) was completely dissolved.

The pH of the prepared cosmetic was measured by a pH meter (measured by METTLER TOLEDO, at 25 ° C) of a 10 wt% aqueous solution of the cosmetic.

The pH of an aqueous solution of a polymer containing a polyacrylate chain and an ascorbic acid 2-glucoside (AA2G) Example 1 Example 2 Example 3 Comparative Example 1 Polymer type Carbomer Acrylate / C10-30 alkyl acrylate crosspolymer Sodium polyacrylate Citric acid, sodium citrate A. AA2G 20% aqueous solution 1.9 B. Polymer (5 parts by weight) + water (100 parts by weight) 2.7 2.7 5.8 6.0 C. Polymer (5 parts by weight) + AA2G (20 parts by weight) + water (100 parts by weight) 2.0 2.0 2.0 2.9

In the results of Table 1, similarly to Comparative Example 1 in which citric acid / sodium citrate was used in the past, an aqueous solution (B) using a polymer containing a polyacrylate chain was also acidic and in particular, ascorbic acid 2 In the case of the aqueous solution (C) in which glucoside is dissolved together with the polymer, the pH of the whole aqueous solution is similar to the pH (1.9) of the 20% aqueous solution in which only ascorbic acid 2-glucoside alone is dissolved, It can be seen that it does not affect the ionization. This suggests that a polymer aqueous solution containing a polyacrylate chain stabilizes ascorbic acid 2-glucoside by a mechanism different from that of citric acid. That is, citric acid / sodium citrate affects dissociation of hydrogen ions of ascorbic acid 2-glucoside to control the pH, but a polymer containing a polyacrylate chain forms a polymer network in cosmetics to form ascorbic acid 2- Lt; RTI ID = 0.0 > glucoside. ≪ / RTI >

[Referential Example 1] Preparation of Examples 4 to 8 and Comparative Example 2

Lotions of Examples 4 to 8 and Comparative Example 2 were respectively prepared according to the following production methods in the composition shown in Table 2 below (unit: wt%).

turn Ingredients Example 4 Example 5 Example 6 Example 7 Example 8 Comparative Example 2 One Purified water to 100 to 100 to 100 to 100 to 100 to 100 2 Disodium iodide 0.05 0.05 0.05 0.05 0.05 0.05 3 Butylene glycol 4.00 4.00 4.00 4.00 4.00 4.00 4 Betaine 1.00 1.00 1.00 1.00 1.00 1.00 5 Purified water 10.00 10.00 10.00 10.00 10.00 10.00 6 Glycereth-26 2.00 2.00 2.00 2.00 2.00 2.00 7 Cellulose sword 0.05 0.05 0.05 0.05 0.05 0.05 8 Purified water 10.00 10.00 10.00 10.00 10.00 10.00 9 Ascorbic acid 2-glucoside 2.00 2.00 2.00 2.00 2.00 2.00 10 Citric acid - - - - - 0.3 11 Sodium citrate - - - - - 0.02 12 Purified water - - - - - 3.33 13 Carbomer 0.5 - - - 0.5 - 14 Acrylate / C10-30 alkyl acrylate crosspolymer - 0.5 - 0.5 - - 15 Sodium polyacrylate - - 0.5 - - - 16 Tromethamine 1.5 1.5 - - - - 17 Triethanolamine - - 1.5 1.5 - - 18 Potassium hydroxide 90% - - - - 0.5 0.37 19 Ethanol 95% 5.00 5.00 5.00 5.00 5.00 5.00 20 PIGGY-60 Hydrogenated Castor Oil 0.35 0.35 0.35 0.35 0.35 0.35 21 incense 0.2 0.2 0.2 0.2 0.2 0.2 22 Octyldodec-16 0.15 0.15 0.15 0.15 0.15 0.15 23 Phenyl trimecicone 0.3 0.3 0.3 0.3 0.3 0.3

<Manufacturing Method >

1) Raw materials 1 to 4 of Table 2 are dissolved at room temperature.

2) Heat the raw materials 5 to 7 of Table 2 in a separate container.

3) Raw materials 8 to 18 of Table 2 are dissolved in an agar mixer to dissolve in a separate container.

4) Mix ingredients 19-22 in Table 2 in a separate container.

5) The polymer mixture in step 2) is added to the upper part of the water in step 1) and dispersed in an agitator.

6) After the mixture of step 5) is cooled to 50 ° C, the mixture of step 3) is slowly added thereto.

7) The mixture of step 6) is added to the mixture of step 6), dispersed and then degassed to prepare a cosmetic composition.

[Test Example 2] Comparison of the stability of the composition according to the pH adjusting agent for stabilizing ascorbic acid 2-glucoside and the degree of discoloration of ascorbic acid 2-glucoside.

In the case of preparing cosmetic lotions containing Ascorbic acid 2-glucoside in Examples 4 to 8 and Comparative Example 2, 100 ml mass cylinder was filled with 70 ml of cosmetic lotion at 25 ° C, and specific gravity was measured using a hydrometer. In addition, since the degree of decrease in the activity can be qualitatively confirmed through browning at high temperature, the discoloration of the lotion was observed. In addition, when the stability of the formulation is not good, the stability of the lotion can be evaluated by observing the condition of the formulation, since a band may occur and separation or increase in the degree of suspension may occur.

The measurement results are shown in Table 3 below.

Test substance importance Storage temperature Degree of discoloration
(O: No discoloration
X: discolored) Stability
(O: stable / X: unstable) Examples 4 to 8 1.013-1.015 Freezing (-10 ℃) X O Refrigerated (5 ℃) X O 30 ℃ X O 45 ° C X O 60 ° C X O Comparative Example 2 1.012 Freezing (-10 ℃) X O Refrigerated (5 ℃) X O 30 ℃ X O 45 ° C O O 60 ° C O O

* Good: A one-week stability was secured in a thermostat set at 4 ° C and 60 ° C in a thermostat (JISICO) normally set at -10 ° C, 5 ° C, 30 ° C and 45 ° C (ie, oil separation and precipitation Which is not found).

In the results shown in the above Table 3, the lotion using the polymer containing polyacrylate chains according to the present invention (Examples 4 to 8) used the polymeric citric acid / sodium citrate buffer as a pH adjusting agent It can be confirmed that the specific gravity is not increased as compared with the lotion (Comparative Example 2), so that it can be used in the lotion.

In addition, formulation stability at high and low temperatures was also secured, indicating that the use of polymers containing polyacrylate chains could replace conventional buffers. In particular, a polymer containing a polyacrylate chain can effectively prevent high-temperature discoloration of ascorbic acid 2-glucoside as compared with conventional buffers, slow down the discoloration timing at a high temperature, Can be confirmed.

[Referential Example 2] Preparation of Examples 9 to 13 and Comparative Example 3

Each of the water-in-oil type emulsions of Examples 9 to 13 and Comparative Example 3 was prepared by the following production method in the composition shown in Table 4 (unit: wt%).

turn Ingredients Example 9 Example 10 Example 11 Example 12 Example 13 Comparative Example 3 One Pentaerythrityl tetraisostearate 2.00 2.00 2.00 2.00 2.00 2.00 2 Caprylic / capric triglyceride 2.00 2.00 2.00 2.00 2.00 2.00 3 Vegetable squalane 2.00 2.00 2.00 2.00 2.00 2.00 4 Polyglyceryl-10 stearate 0.5 0.5 0.5 0.5 0.5 0.5 5 Behenyl alcohol 0.8 0.8 0.8 0.8 0.8 0.8 6 Cetearyl Alcohol * Cetearyl Glucoside 0.8 0.8 0.8 0.8 0.8 0.8 7 Cyclopentasiloxane 7.00 7.00 7.00 7.00 7.00 7.00 8 Purified water to 100 to 100 to 100 to 100 to 100 to 100 9 Disodium iodide 0.05 0.05 0.05 0.05 0.05 0.05 10 Butylene glycol 10.00 10.00 10.00 10.00 10.00 10.00 11 Xanthan gum 0.2 0.2 0.2 0.2 0.2 0.2 12 Ethoxyethanol 0.3 0.3 0.3 0.3 0.3 0.3 13 Ethylhexyl glycerin 0.05 0.05 0.05 0.05 0.05 0.05 14 Purified water 10.00 10.00 10.00 10.00 10.00 10.00 15 Ascorbic acid 2-glucoside 2.00 2.00 2.00 2.00 2.00 2.00 16 Citric acid - - - - - 0.3 17 Sodium citrate - - - - - 0.02 18 Purified water - - - - - 3.33 19 Carbomer 0.5 - - - 0.5 - 20 Acrylate / C10-30 alkyl acrylate crosspolymer - 0.5 - 0.5 - - 21 Sodium polyacrylate - - 0.5 - - - 22 Tromethamine 1.5 1.5 - - - - 23 Triethanolamine - - 1.5 1.5 - - 24 Potassium hydroxide 90% - - - - 0.5 0.37 25 C13-14 isoparaffin * Laureth-7 * polyacrylamide 0.8 0.8 0.8 0.8

<Manufacturing Method >

1) Ingredients 8 to 13 in Table 4 were dissolved at 70 占 폚 to prepare a water-soluble part.

2) Raw materials 1 to 6 of Table 4 are dissolved in a separate container at 70 占 폚 to prepare an oily portion.

3) In a separate container, mix ingredients 14 to 24 in Table 4 with an agitator to dissolve.

4) The oil phase and the raw material 7 in the step 2) are added to the upper part of the water in the step 1) and mixed by stirring with a homomixer.

5) After the mixture of step 4) is cooled to 50 DEG C, the mixture of step 3) is added and stirred with a homomixer.

6) The raw material 25 is added to the mixture of step 5), stirred with a homomixer, degassed, and cooled to 30 ° C to prepare a cosmetic composition.

[Test Example 3] Comparison of stability of an underwater type emulsion according to a pH adjusting agent for stabilizing ascorbic acid 2-glucoside and degree of discoloration of ascorbic acid 2-glucoside

In the case of the water-in-oil type emulsion, when the stability at high temperature is poor, the oil phase can be separated and wax or the like may be precipitated at a low temperature. Therefore, in Examples 9 to 13 and Comparative Example 3, In the preparation of the type emulsion, the stability of the formulation was evaluated by observing viscosity and pH, discoloration, and stability. At this time, the viscosity was measured with a Brookfield Viscometer LVDV-II using a Spindle No. 3 at 12 rpm.

The measurement results are shown in Table 5 below.

(O: Good / X: Bad) Test substance Viscosity (cps) Storage temperature Degree of discoloration
(O: No discoloration
X: discolored) Stability
(O: stable / X: unstable) Example
9-13 7000-8500 Freezing (-10 ℃) X O Refrigerated (5 ℃) X O 30 ℃ X O 45 ° C X O 60 ° C X O Comparative Example 3 5900 Freezing (-10 ℃) X O Refrigerated (5 ℃) X O 30 ℃ X O 45 ° C O O 60 ° C O O

※ Good: One-week stability was secured in a thermostat set at 4 ° C and 60 ° C in a thermostat (JISICO) normally set at -10 ° C, 5 ° C, 30 ° C and 45 ° C (ie, oil separation and gelation Which is not found).

In the results of the above Table 5, it can be seen that, compared to the underwater type cosmetic using the polymer containing the polyacrylate chain according to the present invention (Examples 9 to 13) and the underwater type cosmetic using the citric acid / sodium citrate (Comparative Example 3) Although it contains the same amount of ascorbic acid 2-glucoside, it can be seen that the viscosity is kept high and the stability of the formulation in manufacturing is better. Particularly, the stability at 60 ° C was greatly improved. It was confirmed that the separation speed at high temperature was slowed and the discoloration of ascorbic acid 2-glucoside was effectively prevented in the separated water phase, Was found to further prevent discoloration of ascorbic acid 2-glucoside. It can be confirmed that the stability at a temperature lower than 45 ° C is similar to or better than the conventional level.

Claims (17)

Ascorbic acid 2-glucoside; A polymer comprising a polyacrylate chain; And a base. The cosmetic composition according to claim 1, wherein the base is used as a neutralizing agent for neutralizing ascorbic acid 2-glucoside. The cosmetic composition according to claim 1, wherein the composition has a pH of 5 to 8. The cosmetic composition according to claim 1, wherein the ascorbic acid 2-glucoside is contained in an amount of 0.01 to 50.0% by weight based on the total weight of the composition. The cosmetic composition according to claim 1, wherein the polymer comprising the polyacrylate chain is contained in an amount of 0.01 to 10.0% by weight based on the total weight of the composition. The cosmetic composition according to claim 1, wherein the polymer containing the polyacrylate chain and the ascorbic acid are used in a weight ratio of 2-glucoside of 1:10 to 1:40. The method of claim 1, wherein the polymer comprising the polyacrylate chain is selected from the group consisting of carbomer, acrylate / C10-30 alkyl acrylate crosspolymer, sodium polyacrylate, polyacrylic acid, acrylate copolymer and polyacrylate crosspolymer Wherein the cosmetic composition is at least one selected from the group consisting of: The cosmetic composition according to claim 1, wherein the base is contained in an amount of 0.001 to 30.0% by weight based on the total weight of the composition. The cosmetic composition according to claim 1, wherein the base is at least one selected from the group consisting of tromethamine, triethanolamine, sodium hydroxide, L-arginine, and potassium hydroxide. The cosmetic composition according to claim 1, wherein the composition is a formulation of a solubilized type, an underwater type or a water-in-oil type. A method for preparing a cosmetic composition comprising a stabilized ascorbic acid 2-glucoside, which comprises adjusting the pH of a cosmetic composition comprising ascorbic acid 2-glucoside with a polymer comprising a polyacrylate chain. 12. The method of claim 11,
1) mixing a water-soluble raw material to prepare a water-soluble part;
2) mixing an oil-soluble raw material to produce an oil-in-water portion;
3) mixing a mixture of ascorbic acid 2-glucoside, a polymer containing a polyacrylate chain, and a base for neutralizing ascorbic acid 2-glucoside with purified water to obtain a mixture;
4) mixing the upper part of step 2) with the upper part of step 2); And
5) cooling the mixture of step 4) to less than 50 ° C, and then adding the mixture of step 3)
/ RTI &gt;
Wherein the cosmetic composition is an underwater type. 12. The method of claim 11,
1) mixing a water-soluble raw material to prepare a water-soluble part;
2) mixing an oil-soluble raw material to produce an oil-in-water portion;
3) mixing a mixture of ascorbic acid 2-glucoside, a polymer containing a polyacrylate chain, and a base for neutralizing ascorbic acid 2-glucoside with purified water to obtain a mixture;
4) cooling the water phase of step 1) to less than 50 ° C, and then adding the mixture of step 3); And
5) mixing the oil phase of step 2) with the mixture of step 4);
/ RTI &gt;
Wherein the cosmetic composition is a water-in-oil type. 12. The method of claim 11,
1) mixing the raw materials to produce a lotion;
2) mixing a mixture of ascorbic acid 2-glucoside, a polymer containing a polyacrylate chain, and a base for neutralizing ascorbic acid 2-glucoside with purified water to obtain a mixture; And
3) cooling the cosmetic lotion of step 1) to less than 50 ° C, and then introducing the mixture of step 2);
/ RTI &gt;
Wherein the cosmetic composition is in a solubilized form. 12. The method of manufacturing a cosmetic composition according to claim 11, wherein the polymer is a thickener. 12. The method of claim 11, wherein the base is used as a neutralizing agent to neutralize ascorbic acid 2-glucoside. 15. A cosmetic composition containing stabilized ascorbic acid 2-glucoside according to any one of claims 12 to 14, wherein the pH of the composition is in the range of 5 to 8 when the ascorbic acid 2-glucoside is added. &Lt; / RTI &gt;