KR20200127403A - Cosmetic composition having ascorbic acid and cosmetic products having the same - Google Patents

Abstract

The present invention relates to a cosmetic composition having excellent effects of reducing skin wrinkles, ameliorating pigmentation, and providing antioxidant and antiviral actions by securing the stability of ascorbic acid, which is particularly vulnerable to natural light and UV exposure, and to a cosmetic product including the cosmetic composition. The cosmetic composition of the present invention includes 1 to 20 wt% of ascorbic acid with respect to the total weight of the cosmetic composition, and further includes ethylhexyl methoxycrylene.

Description

Cosmetic composition containing ascorbic acid and cosmetics containing the same {COSMETIC COMPOSITION HAVING ASCORBIC ACID AND COSMETIC PRODUCTS HAVING THE SAME}

The present invention relates to a cosmetic composition, and more particularly, to a cosmetic composition containing ascorbic acid and particularly excellent anti-wrinkle effect, and a cosmetic comprising the same.

In general, as the skin ages, natural aging occurs, such as wrinkles and loss of elasticity, spots and freckles. Therefore, studies to improve this have been actively conducted.

As one of the visible achievements of these studies, ascorbic acid (also known as'vitamin C') is not only excellent in improving skin wrinkles, but also suppressing melanin production, improving pigmentation such as spots, freckles, and age spots. As it is widely known that it has excellent effects on antioxidants and antiviruses, it has been in the spotlight as a material for external skin.

However, ascorbic acid is easily oxidized by air, moisture, light, heat, metal ions, oxygen, bases, etc., resulting in discoloration and deodorization, which is very vulnerable in terms of stability. Therefore, in the case of such a composition containing ascorbic acid, it is important to secure the stability of ascorbic acid, and technologies for obtaining stable ascorbic acid by binding peptides have been developed.

The matters described in the background art are provided to help understanding the background of the invention, and may include matters other than the prior art already known to those of ordinary skill in the field to which this technology belongs.

Korean Registered Patent Publication No. 10-1652204

Accordingly, in order to solve the above problems, the present invention secures the stability of ascorbic acid, which is particularly vulnerable to natural light and UV exposure, thereby improving skin wrinkles, improving pigmentation, and including cosmetic compositions having excellent effects such as antioxidants and antiviruses. The purpose is to provide cosmetic products.

The present invention for achieving the above object is, in a cosmetic composition containing 1 to 20% by weight of ascorbic acid based on the total weight of the cosmetic composition, containing ethylhexylmethoxycrylene (ethylhexylmethoxycrylene) It features.

The cosmetic composition of the present invention and cosmetics including the same secure the stability of ascorbic acid, which is particularly vulnerable to exposure to natural light and ultraviolet rays, so that color change does not occur even when exposed to natural light and ultraviolet rays.

Therefore, by preventing the effect of ascorbic acid from deteriorating due to discoloration, etc., as a result, the cosmetic composition of the present invention and the cosmetic product including the same have excellent effects such as skin wrinkle improvement, pigmentation improvement, antioxidant and antiviral exposure to natural light and ultraviolet rays. It can be maintained even under, and there is a characteristic that it can contain a larger amount of ascorbic acid.

Hereinafter, embodiments and examples of the present invention will be described in detail so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various different forms, and is not limited to the embodiments and examples described herein. Throughout this specification, when a certain part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

The present invention relates to a cosmetic composition having excellent effects such as skin wrinkle improvement, pigmentation improvement, anti-oxidation and anti-viral effects by securing the stability of ascorbic acid, which is particularly vulnerable to natural light and UV exposure, and to a cosmetic comprising the same.

The cosmetic composition of the present invention contains ascorbic acid, and includes ethylhexylmethoxycrylene.

Ethylhexylmethoxycrylene is a component that acts as a light stabilizer, and it protects against discoloration and discoloration even when the cosmetic composition of the present invention containing ascorbic acid or ascorbic acid is exposed to natural light or ultraviolet rays. .

Therefore, for this reason, when ethylhexylmethoxycrylene is included in the cosmetic composition, a larger amount of ascorbic acid can be stably included in the composition. For example, the cosmetic composition of the present invention may contain ascorbic acid from 1% by weight to 50% by weight, preferably up to 35% by weight, more preferably up to 20% by weight based on the total weight of the composition. It has excellent features such as wrinkle improvement, pigmentation improvement, antioxidant and antiviral effects.

Such ethylhexylmethoxycrylene is preferably contained in an amount of 0.1 to 0.5% by weight based on the total weight of the cosmetic composition of the present invention. This means that if ethylhexylmethoxycrylene is contained in less than 0.1% by weight based on the total weight of the cosmetic composition, the photostabilizing effect may be insufficient, and if it exceeds 0.5% by weight, it can be used for side effects such as acute eczema, allergies and cell damage. Because there is concern.

On the other hand, the cosmetic composition of the present invention may further include phloretin.

Phloretin is a component for improving the functional characteristics of the cosmetic composition of the present invention, and has excellent antioxidant effects and the effect of protecting skin cells from ultraviolet rays, suppressing melanin production and improving pigmentation such as spots, freckles, and age spots. There is this.

Such floretin is preferably contained in an amount of 0.1 to 1% by weight, based on the total weight of the cosmetic composition of the present invention. If the amount of phloretin is less than 0.1% by weight, the effect of the above-described phloletin may be insufficient, and when it exceeds 1% by weight, there is a risk of allergy.

On the other hand, the cosmetic composition of the present invention may further include ferulic acid.

Ferulic acid is also an ingredient for improving the functional characteristics of the cosmetic composition of the present invention.It protects the skin from free radicals that cause skin aging, suppresses melanin production, and improves pigmentation such as spots, freckles, and age spots. It has the effect of letting the cosmetic composition (or cosmetics) from rancidity, and may serve as an antioxidant and discoloration inhibitor.

Such ferulic acid is preferably contained in an amount of 0.5 to 1% by weight, based on the total weight of the cosmetic composition of the present invention. This is because when the amount of ferulic acid is less than 0.5% by weight, the effect of the above-described ferulic acid may be insufficient, and when it is more than 1% by weight, there is a risk of allergy.

Meanwhile, the cosmetic composition of the present invention may further include at least one component selected from a moisturizing agent, a solubilizing agent, a pH neutralizing agent, a thickening agent, a fat-soluble antioxidant and a stabilizer.

The moisturizer is a component for imparting moisture and suppleness to the skin, and is preferably a polyol, and more specifically, at least one selected from glycerin, 1,3-butylene glycol, propylene glycol, polyethylene glycol, dipropylene glycol, and propanediol It may include, but is not particularly limited thereto.

Such a moisturizing agent is preferably contained in an amount of 20 to 50% by weight, based on the total weight of the cosmetic composition of the present invention. This is because if the moisturizer is less than 20% by weight, the effect of the moisturizer described above may be insufficient, and if it is more than 50% by weight, the moisturizing feeling and suppleness may be more improved, but stickiness and a stuffy feeling of use may occur.

The solubilizing agent is a component that allows other components of the cosmetic composition to be dissolved beyond the original solubility. For example, octyldodeces-25, octyldodeces-16, polysorbate 80, polysorbate 60 (Polysorbate 60), nicotinamide, caffeine, sodium PCA, sodium salicylate, urea, and at least one selected from hydroxyethylurea, but is not particularly limited thereto.

These solubilizing agents are preferably contained in an amount of 3 to 5% by weight, based on the total weight of the cosmetic composition of the present invention. This is because if the solubilizing agent is less than 3% by weight, the effect of the above-described solubilizing agent may be insufficient, and if it is more than 5% by weight, there is a concern such as dryness of the skin due to transdermal moisture loss, weakening of the skin barrier, and skin irritation.

The pH neutralizer is a component for adjusting the pH of the cosmetic composition, for example, hydrochloric acid, sulfuric acid, phosphoric acid, diammonium hydrogen phosphate, disodium hydrogen phosphate, dipotassium hydrogen phosphate, ammonium dihydrogen phosphate, sodium dihydrogen phosphate, potassium dihydrogen phosphate, phosphoric acid. Trisodium, tripotassium phosphate, acetic acid, ammonium acetate, sodium acetate, potassium acetate, sodium citrate, diammonium citrate, sodium carbonate, potassium carbonate, ammonium carbonate, sodium hydrogen carbonate, ammonium hydrogen carbonate, sodium hydroxide, potassium hydroxide, ammonia , Sodium chloride and triethanolamine, tromethamine, and carnitine may be included, but are not particularly limited thereto.

Such a pH neutralizing agent is preferably contained in an amount of 0.1 to 0.3% by weight based on the total weight of the cosmetic composition of the present invention. If the pH neutralizer is less than 0.1% by weight, the pH control effect may be insufficient, or the viscosity of the cosmetic composition may not be realized, so the formulation stability may be poor, and if it exceeds 0.3% by weight, the pH of the cosmetic composition may be excessively affected. Because there is.

The thickener is a component for controlling the viscosity of the cosmetic composition, for example, carbomer, ammonium acryloyldimethyltaurate/VPCopolymer, polyacrylate crosspolymer-6, hydroxyethylcellulose, xanthan gum, dis Theadimonium hectorite, hectorite, bentonite, vinyldimethicone/methiconesilsesquioxane crosspolymer, dextrin palmitate, dextrin palmitate/ethylhexanoate, dextrin myristate, stearoylinulin, polyethylene, ceresin, ozo It may include at least one selected from kerite, microcrystalline wax, carnauba wax, beeswax, and stearyl alcohol, but is not particularly limited thereto.

These thickeners are preferably contained in an amount of 0.1 to 0.5% by weight, based on the total weight of the cosmetic composition of the present invention. This is because when the thickener is less than 0.1% by weight, the viscosity enhancing effect may be insufficient, and when it is more than 0.5% by weight, the viscosity may be excessively high and the feeling of use may be reduced.

The stabilizer is a component for improving the stability of the cosmetic composition of the present invention, and is preferably a divalent metal salt, and more specifically, magnesium sulfate (MgSO ₄ ), magnesium stearate, magnesium acetylsalicylate, calcium acetylsalicylate, calcium hydroxide, barium sulfate , Strontium chloride, strontium bromide, acetylcysteine, ubiquinone, melatonin, thiotic acid, superoxide dismutase, turmeric root extract, troxerutin, and zinc sulfate, but may include one or more selected from among, but are particularly limited thereto. It is not.

Such a stabilizer is preferably contained in an amount of 0.1 to 0.5% by weight, based on the total weight of the cosmetic composition of the present invention. This is because when the stabilizer is less than 0.1% by weight, the effect of the stabilizer may be insufficient, and when it is more than 0.5% by weight, there is a concern such as skin irritation.

On the other hand, the cosmetic composition of the present invention may further include a fat-soluble antioxidant in addition to a moisturizing agent, a solubilizing agent, a pH neutralizing agent, a thickening agent or a stabilizer.

Fat-soluble antioxidants are ingredients to further improve the antioxidant function of cosmetic compositions, and include synthetic tocophenols or natural tocophenols as tocophenols, or ascorbyl palmitate, stearate, and butyl hides as fatty acid ascorbic acid esters. It may include at least one selected from oxytoluene, butyl hydroxy anisole, and propyl gallate, but is not particularly limited thereto.

These fat-soluble antioxidants are preferably contained in an amount of 0.3 to 0.7% by weight based on the total weight of the cosmetic composition of the present invention. This is because when the fat-soluble antioxidant is less than 0.3% by weight, the antioxidant effect may be insufficient, and when it is more than 0.7% by weight, the feeling of use is impaired.

The present invention includes a cosmetic comprising the cosmetic composition of the present invention described so far, wherein the cosmetic is one selected from skin, lotion, cream, gel, essence, serum, toner, sunscreen, cleansing agent, foundation and pack. It is preferable and can be used for scalp, hair, body, face, and the like.

Hereinafter, the present invention will be described in more detail through comparative examples and examples. However, these comparative examples and examples are only presented as examples of the invention, and the scope of the invention is not limited thereby.

Comparative Examples 1 to 5

Table 1 below is a table showing the components and weights included in the cosmetic compositions of Comparative Examples 1 to 5. The unit is g.

ingredient Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Purified water To 100 To 100 To 100 To 100 To 100 Ascorbic acid 15 15 15 15 15 Ethylhexylmethoxycrylene - - - - - Floretine 0.2 0.2 0.2 0.2 0.2 Ferulic Acid 0.5 0.5 0.5 0.5 0.5 Polyol 43 43 43 43 43 Solubilizer 4 4 4 4 4 ethanol 14 14 14 14 14 pH neutralizer 0.2 0.2 0.2 0.2 0.2 Fat-soluble antioxidant 0.5 0.5 0.5 0.5 0.5 Thickener 0.3 0.3 0.3 0.3 0.3 Magnesium sulfate 0.1 0.1 0.1 0.1 0.1 Butylmethoxybenzoylmethane - 0.1 - - - Ethylhexylmethoxycinnamate - - 0.1 - - Ethylhexyl salicylate - - - 0.1 - Butioctyl salicylate - - - - 0.1

Examples 1 to 5

Table 2 below is a table showing the components and weights included in the cosmetic compositions of Examples 1 to 5. The unit is g.

Raw material name Example 1 Example 2 Example 3 Example 4 Example 5 Purified water To 100 To 100 To 100 To 100 To 100 Ascorbic acid 15 15 15 15 15 Ethylhexylmethoxycrylene 0.1 0.2 0.3 0.4 0.5 Floretine 0.2 0.2 0.2 0.2 0.2 Ferulic Acid 0.5 0.5 0.5 0.5 0.5 Polyol 43 43 43 43 43 Solubilizer 4 4 4 4 4 ethanol 14 14 14 14 14 pH neutralizer 0.2 0.2 0.2 0.2 0.2 Fat-soluble antioxidant 0.5 0.5 0.5 0.5 0.5 Thickener 0.3 0.3 0.3 0.3 0.3 Magnesium sulfate 0.1 0.1 0.1 0.1 0.1

Experimental Example 1: Wrinkle improvement effect

The cosmetic composition of Comparative Examples 1 to 5 and the cosmetic compositions of Examples 1 to 5 described above were used to test the wrinkle improvement effect.

The experimental method was to apply the cosmetic composition evenly around the eyes twice a day for 20 women in their 30s. I did.

Table 3 below shows the results for Comparative Examples 1 to 5, and Table 4 below shows the results for Examples 1 to 5.

Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Before application [㎛] 317 288 302 324 338 90 days after application [㎛] 301 253 256 281 297 Wrinkle depth reduction rate [%] 5.05 12.15 15.23 13.27 12.13

Example 1 Example 2 Example 3 Example 4 Example 5 Before application [㎛] 315 321 308 331 295 90 days after application [㎛] 280 276 261 274 231 Wrinkle depth reduction rate [%] 11.11 14.02 15.26 17.22 21.69

As shown in Tables 3 and 4, in the case of the cosmetic compositions of Examples 3 to 5 containing 0.3 g or more of ethylhexylmethoxycrylene, it can be confirmed that the wrinkle depth reduction rate is higher than that of all the cosmetic compositions of Comparative Examples. Among them, in particular, it was confirmed that the wrinkle depth reduction rate of Examples 4 and 5 containing 0.4 g or more of ethylhexylmethoxycrylene was significantly higher than 17%.

In other words, as a result, when 0.3% by weight or more of ethylhexylmethoxycrylene is included with respect to the total weight of the cosmetic composition, butylmethoxybenzoylmethane, ethylhexylmethoxycinnamate, ethylhexyl salicylate or butioctyl salicylate It was found that the anti-wrinkle effect was excellent compared to the cosmetic composition containing.

Experimental Example 2: Natural light stability

Natural light stability was tested using the cosmetic compositions of Comparative Examples 1 to 5 and the cosmetic compositions of Examples 1 to 5 described above.

In the experimental method, the cosmetic composition was put in a transparent glass bottle having a diameter of 40 mm and a height of 10 mm, and then irradiated with natural light for 14 days, and then the degree of color change was measured to evaluate the stability. Stability evaluation criteria are as follows.

Stability 1: The degree of color change (decoloration degree) is 90% or more

Stability 3: The degree of color change (degree of bleaching) is 50%

Stability 5: Almost no color change (degree of bleaching)

Table 5 below shows the results for Comparative Examples 1 to 5, and Table 6 below shows the results for Examples 1 to 5.

Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative example 5 One 2 2 2 2

Example 1 Example 2 Example 3 Example 4 Example 5 2 2 3 4 5

As shown in Tables 5 and 6, it was confirmed that all the cosmetic compositions of the Example had the same or superior stability in natural light compared to all the cosmetic compositions of the Comparative Example.

In particular, the cosmetic composition of Examples 3 to 5 containing 0.3 g or more of ethylhexylmethoxycrylene was excellent in stability in natural light, and the cosmetic composition of Example 5 containing 0.5 g of ethylhexylmethoxycrylene It was confirmed that the silver color change (discoloration) hardly occurred.

In other words, as a result, when 0.3% by weight or more of ethylhexylmethoxycrylene is included with respect to the total weight of the cosmetic composition, butylmethoxybenzoylmethane, ethylhexylmethoxycinnamate, ethylhexyl salicylate or butioctyl salicylate It was found that the stability in natural light was superior compared to the cosmetic composition containing.

Experimental Example 3: Ultraviolet (UV) stability

UV stability was tested using the cosmetic compositions of Comparative Examples 1 to 5 and the cosmetic compositions of Examples 1 to 5 described above.

The experimental method is to put the cosmetic composition in a clear glass bottle with a diameter of 40 mm and a height of 10 mm, put it in an Atlas SunTest CPS+, apply a solar exposure experiment for 24 hours, and measure the degree of color change to evaluate the stability. I did. Sunlight exposure was performed under the conditions of 70° C., 300-800 nm Lux, and 760W/m ² . The evaluation criteria for stability are as follows.

Stability 1: The degree of color change (decoloration degree) is 90% or more

Stability 3: The degree of color change (degree of bleaching) is 50%

Stability 5: Almost no color change (degree of bleaching)

Table 7 below shows the results for Comparative Examples 1 to 5, and Table 8 below shows the results for Examples 1 to 5.

Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative example 5 One 2 2 2 2

Example 1 Example 2 Example 3 Example 4 Example 5 3 4 4 5 5

As shown in Tables 7 and 8, it was confirmed that all the cosmetic compositions of the Example had excellent stability in sunlight (ultraviolet rays) compared to all the cosmetic compositions of the Comparative Example.

In particular, it was found that the cosmetic composition of Example 4 and Example 5 containing 0.4 g or more of ethylhexylmethoxycrylene had little color change (discoloration).

In other words, as a result, when 0.1% by weight or more of ethylhexylmethoxycrylene is included with respect to the total weight of the cosmetic composition, butylmethoxybenzoylmethane, ethylhexylmethoxycinnamate, ethylhexyl salicylate or butioctyl salicylate It was found that stability in sunlight (ultraviolet rays) was superior compared to the cosmetic composition containing.

Embodiments of the present invention ascorbic acid-containing cosmetic composition and cosmetics containing the same are only preferred embodiments that enable those skilled in the art to easily implement the present invention, the above-described embodiments Because it is not limited to this, the scope of the present invention is not limited thereto. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. In addition, it will be apparent to those skilled in the art that various substitutions, modifications and changes are possible within the scope of the technical spirit of the present invention, and it is obvious that parts that can be easily changed by those skilled in the art are included in the scope of the present invention. .

Claims (12)

In the cosmetic composition comprising 1 to 20% by weight of ascorbic acid based on the total weight of the cosmetic composition,
Cosmetic composition, characterized in that it comprises ethylhexylmethoxycrylene (ethylhexylmethoxycrylene). The method of claim 1,
The ethylhexylmethoxycrylene is a cosmetic composition, characterized in that contained in 0.1 to 0.5% by weight based on the total weight of the cosmetic composition. The method of claim 1,
The cosmetic composition is a cosmetic composition, characterized in that it further comprises a phloretin and ferulic acid (ferulic acid). The method of claim 3,
The phloretin is a cosmetic composition, characterized in that contained in an amount of 0.1 to 1% by weight based on the total weight of the cosmetic composition. The method of claim 3,
The cosmetic composition, characterized in that the ferulic acid is contained in an amount of 0.5 to 1% by weight based on the total weight of the cosmetic composition. The method of claim 1,
The cosmetic composition further comprises at least one component selected from a moisturizing agent, a solubilizing agent, a pH neutralizing agent, a thickener, a fat-soluble antioxidant and a stabilizer. The method of claim 6,
The moisturizing agent is a polyol, and a cosmetic composition comprising 20 to 50% by weight based on the total weight of the cosmetic composition. The method of claim 6,
The stabilizer is a divalent metal salt, a cosmetic composition comprising 0.1 to 0.5% by weight based on the total weight of the cosmetic composition. The method of claim 8,
Cosmetic composition, characterized in that the stabilizer is magnesium sulfate (MgSO ₄ ). The method of claim 6,
The cosmetic composition further comprises 0.3 to 0.7% by weight of a fat-soluble antioxidant based on the total weight of the cosmetic composition. A cosmetic comprising the cosmetic composition of any one of claims 1 to 10. The method of claim 11,
The cosmetic is a cosmetic, characterized in that one selected from skin, lotion, cream, gel, essence, serum, toner, sunscreen, cleansing agent, foundation and pack.