KR20180036113A - Skin Coloring Cosmetic Composition - Google Patents

Abstract

The present invention relates to a skin coloring cosmetic composition, and more particularly, to a skin coloring cosmetic composition which includes dihydroxyacetone (DHA) which forms melanoidin which is a brown compound through reaction with an amino group of an amino acid contained in a horny layer of a skin and erythrulose which increases a skin coloring persistence effect of the dihydroxyacetone as active ingredients. The skin coloring cosmetic composition according to the present invention penetrates not only the surface of the skin but also the skin horny to exhibit excellent skin coloring power and exhibits excellent skin coloring persistence that does not change the initial coloring with the passage of time. Also, the skin coloring cosmetic composition according to the present invention is clearly maintained on an applied part for a long time and very naturally expresses the shape of an eyebrow.

Description

Skin Coloring Cosmetic Composition [0002]

The present invention relates to a cosmetic composition for skin coloring, and more particularly to a cosmetic composition for skin coloration in a local area.

Cosmetics are classified into various categories according to the site of use, purpose of use, or composition and shape of the product, and various types of cosmetics such as basic cosmetics (skin care cosmetics), makeup cosmetics (color cosmetics), body care cosmetics (Body cleansing cosmetics), hair care cosmetics, oral cosmetics, and directional cosmetics.

Make-up cosmetics is a step to express skin color beautifully by applying color to a body such as a face or nail after use of a base product, and to hide skin defects that can not be covered by basic products. This cosmetic is used to uniformly adjust the skin color of the entire face, to cover the problems of skin such as spots and freckles, to make a base makeup to make the skin healthy and beautiful, and to emphasize local colors such as lips, eyes, eyebrows, It can be categorized as point make-up which gives a three-dimensional feeling by giving a shade. Point Makeup includes lipstick, ball touch, eye shadow, eyeliner, eyebrow pencil, and manicure.

Of these, eyebrows are particularly impressive. In general, eyes, nose, and mouth can change images to some degree with makeup, but they can not physically change shape at all. However, it is possible to change the shape of the eyebrow only.

Since the impression of a person is completely different according to the shape, size, position and color of the eyebrow, efforts have been continuously made to keep the shape and color of the eyebrows beautiful regardless of the east and the west. In recent years, They also pay great attention to eyebrow makeup to make the impression look good.

However, eyebrows are part of living tissue composed of hair. There are differences in the position, richness, and thickness of eyebrow hair according to the biological characteristics of each individual. Especially, the number of eyebrow hair gradually decreases and the eyebrow hair becomes thin And it is very difficult to keep the shape of the beautiful eyebrows constantly.

Previously used eyebrow pencils, eyebrow shadows, eyebrow mascaras, etc. are short-lived and easily cleared by cleansing, so it is cumbersome to make up again every time.

Accordingly, the following patent document 1 discloses an eyebrow-shaped sponge capable of completing eyebrow makeup in such a manner that eyebrows are not drawn but stamped. However, this has a problem that the duration of the eyebrow shape is very short and the procedure is somewhat inconvenient.

Patent Document 2 discloses a pencil composition for eyebrow makeup in which an oil-soluble film-forming agent is added to a conventional pencil composition for eyebrow makeup, and a moisturizing agent and a water-soluble dye are emulsified and emulsified using an emulsifier to improve persistence. There is a problem in that the skin color is temporarily formed only on the skin surface, the coloring power and the coloring maintenance force are weak, the eyebrow color desired by the user is not sufficiently produced, the elastic coating film is not formed, and the shape of the eyebrows is not clear.

To solve this problem, some women choose semi-permanent eyebrow tattoos. However, semi-permanent eyebrow tattoo causes severe skin irritation and causes skin trouble, and it can not change the shape and color of eyebrows according to the trend of the times. Further, it is known that as time goes by, a problem of discoloring becomes blue.

When exposed to sunlight for a long period of time in order to have a healthy skin color by sunbathing, sunburn due to ultraviolet irradiation promotes skin aging and may cause skin cancer. Therefore, it is urgent to develop a skin coloring composition that causes skin tanning more safely.

Accordingly, there is a desperate need to develop a skin coloring cosmetic composition which can exhibit excellent coloring power, has no irritation on the skin, and can produce a natural skin color that can maintain a uniform and vivid color for a long time through excellent coloring and holding power.

Under these technical backgrounds, the present inventors have developed a cosmetic composition for skin coloring which contains dihydroxyacetone and erythrulose as an active ingredient and has improved skin coloring power and skin color persistence.

Patent Document 1: Korean Utility Model No. 20-2011-0005915 (June 15, 2011) Patent Document 2: Korean Patent Publication No. 10-1996-0000193 (1996.01.25)

Accordingly, the present inventors have made intensive efforts to develop a cosmetic composition for skin coloring that forms a melanoidin, a brown compound, through the reaction of the amino acid contained in the horny layer of the skin with the amino group and thereby increases the persistence of skin pigmentation. As a result, It was confirmed that the composition for external application for skin comprising erythrulose as an active ingredient exhibits excellent skin coloring power and skin coloring sustainability, and thus completed the present invention.

Accordingly, an object of the present invention is to provide a cosmetic composition for skin coloring comprising a mixture composed of dihydroxyacetone and erythrulose as an active ingredient.

In order to achieve the above object, the present invention provides a cosmetic composition for skin coloring comprising a mixture of dihydroxyacetone and erythrulose as an active ingredient.

The present invention also provides cosmetics made of the skin coloring cosmetic composition.

The cosmetic composition for skin coloring according to the present invention penetrates not only the skin surface but also the skin horny layer to exert excellent skin coloring power and exhibits excellent skin coloring persistence that does not change the initial coloring with time, It has the advantage that the effect of being kept sharp for a long time and the shape of the eyebrow are produced very smoothly.

1 is a photograph showing a skin coloring cosmetic composition containing a mixture composed of dihydroxyacetone and erythrulose as an active ingredient applied to skin and then photographing at 1 and 9 days after the skin coloring state is maintained The comparison of skin color persistence.
Fig. 2 shows the result of applying a skin coloring cosmetic composition containing a mixture composed of dihydroxyacetone and erythrulose as an active ingredient to the skin, followed by sensory evaluation of skin pigmentation degree.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In general, the nomenclature used herein is well known and commonly used in the art.

The present invention relates to a cosmetic composition for skin coloring comprising dihydroxyacetone and erythrulose. More particularly, the present invention relates to a cosmetic composition for skin coloring comprising dihydroxyacetone and erythritol, which forms melanoidin, a brown compound, The present invention relates to a skin coloring cosmetic composition comprising, as an active ingredient, erythrulose, which increases the skin color persistence effect of acetone and dihydroxyacetone.

The cosmetic composition may be formulated into, for example, a nutritional cream, a massage cream, an eye cream, a body cream type and a skin lotion, a milk lotion, a body lotion type and a peel-off type, and preferably a peel-off type. In the case of the peel-off type, the coloring can be made more effectively with a specific shielding force. For example, in the case of hairy eyebrows, the peel-off formulation can relatively increase the skin contact area with the cosmetic composition so as to more effectively color the skin.

In one embodiment of the present invention, peel-off type formulations of Formulation Examples 1 to 4 were applied to the skin, the mixing ratios of dihydroxyacetone and erythrulose were determined so as to compare coloring power and durability, (Exposure time) was adjusted so as to have an appropriate skin pigmentation degree, and then it was confirmed whether the pigmentation state was maintained after a certain time after coloring. As a result, as shown in Fig. 1, when the skin coloring power (the increase in skin color) by the peel-off type formulation was compared, it was confirmed that the brown color of the skin became darker as the concentration of dihydroxyacetone was increased. On the other hand, the persistence of skin coloring (the degree to which the coloring effect remained for a long time) was formulated at a ratio of 7: 3 by weight on the basis of dihydroxyacetone and erythrulose, which are Formulation Example 3 or Formulation Example 3 rather than Formulation Example 4 The most excellent.

Accordingly, in one aspect, the present invention relates to a cosmetic composition for skin coloring comprising, as an active ingredient, a mixture composed of dihydroxyacetone and erythrulose.

In the present invention, the mixture may be contained in an amount of preferably 0.1 to 15% by weight, more preferably 1.0 to 10% by weight, based on the total weight of the composition. At this time, the mixture is characterized in that dihydroxyacetone and erythrulose are mixed in a ratio of 10-4: 5-1, preferably 5-7: 3-5, most preferably 7: 3 on the basis of weight .

If the composition contains less than 0.1% by weight of dihydroxyacetone, a desired skin coloring effect (skin coloring power) can not be obtained. If the composition contains less than 10% by weight, there is no problem in cytotoxicity and formulation stability.

If the composition contains less than 0.1% by weight of erythrulose, a desired skin coloring maintenance effect (skin coloring sustainability) can not be obtained. If the composition contains less than 5% by weight, there is no problem with cytotoxicity and formulation stability.

In the present invention, the composition may further comprise a film forming agent and an alcohol, wherein the film forming agent is selected from the group consisting of polyvinyl alcohol (PVA), polyvinyl acetate (PVAc) and acrylate copolymer but is not limited to, at least one selected from the group consisting of acrylates copolymer.

In the present invention, when the film-forming agent is polyvinyl alcohol, it is contained in the composition in an amount of 10 to 15 wt%, and when the alcohol is ethyl alcohol, it is contained in the composition in an amount of 8 to 12 wt% .

In the present invention, the composition is applied to the skin and dried, and when the formed film is removed, color is deposited on the horny layer of the skin to color the skin.

In the present invention, as compared with other formulations, the peel-off formulation can be applied to at least one skin selected from the group consisting of scalp, jaw, underarm, under-ears, ball, eyebrows and epidermis with hair follicles and hair follicles throughout the body, Such as hair, eyebrows, eyelashes, mustache, beard, chest hair, dorsal hair, palm hair, leg hair, genital hair, nasal hair or ear hair on the skin of any mammalian body including humans, Lt; RTI ID = 0.0 >

In the present invention, the composition may be characterized by increasing skin coloring power and duration of skin coloring, but is not limited thereto.

The skin tinting strength indicates the intensity of coloration of the skin pigmentation, and the coloration of the skin tinting means the degree to which the coloration of the skin remains long.

In the present invention, the composition may be used for tattooing eye make-up, but is not limited thereto.

In the present invention, the composition may be used for eyebrow makeup, but is not limited thereto.

In the present invention, the formulation of the composition is not particularly limited and may be appropriately selected according to the purpose. For example, supplements such as flexible lotion (skin lotion and milk lotion), nutritional lotion, essence, nutritional cream, massage cream, pack, gel, essence, eye cream, eye essence, cleansing cream, cleansing foam, cleansing water, A body lotion, a body cream, a body oil, and a body essence.

The present invention relates to cosmetics manufactured from the above-mentioned skin coloring cosmetic composition.

Hereinafter, the present invention will be described in more detail with reference to Examples. It is to be understood by those skilled in the art that these examples are for illustrative purposes only and that the scope of the present invention is not construed as being limited by these examples.

The cosmetic composition comprising the dihydroxyacetone and the erythrulose of the present invention is not limited to Formulations 3 to 4 and can be manufactured (cosmetically) into various formulations, and the functionality, cost and other conditions of the product to be implemented It is possible to control the skin coloring power and the skin color persistence by mixing dihydroxyacetone and erythrulose at a proper content ratio.

Manufacturing example : Peel off  Type Formulation Manufacturing

Peel-off type Formulations 1 to 4 were prepared with the compositions shown in Table 1 below.

Compounding ingredient Formulation Example 1
(Content:% by weight) Formulation Example 2
(Content:% by weight) Formulation Example 3
(Content:% by weight) Formulation Example 4
(Content:% by weight) Dihydroxyacetone
(dihydroxyacetone, DHA) - 10 7 5 Erythrulose 10 - 3 5 Polyvinyl alcohol (PVA-217) 12 12 12 12 Ethyl alcohol 10 10 10 10 Preservative, coloring, fragrance Suitable amount
(Optional) Suitable amount
(Optional) Suitable amount
(Optional) Suitable amount
(Optional) Purified water Balance Balance Balance Balance

It has been reported here that dihydroxyacetone (Merck, Germany) has no cytotoxicity at contents of up to 10% by weight, and cytotoxicity at concentrations of up to 5% by weight of erythrulose (Switzerland) Considering this, dihydroxyacetone and erythrulose were mixed in an appropriate amount to improve the skin coloring effect (tinting strength, coloring sustainability, coloring uniformity) to prepare a peel-off type formulation.

Formulations 1 to 4 additionally contained polyvinyl alcohol (PVA), which is a film former, and ethyl alcohol as a component for controlling the drying rate of the formulation.

Example  One: Dihydroxyacetone  And By Erit Rulos  Verification of skin pigmentation efficacy of the composition

The peel-off type formulation of Formulation Examples 2 to 4 was applied to the skin for 3 hours (or 7 hours), and the skin portion that had been applied by peel-off was washed with water. Then, (Skin color persistence) was maintained at the time point of elapsed time.

As a result, as shown in Fig. 1, when the skin coloring power (the increase in skin color) by the peel-off type formulation was compared, it was confirmed that the brown color of the skin became darker as the concentration of dihydroxyacetone was increased.

On the other hand, when the ratio of dihydroxyacetone and erythrulose, which are Formulation Example 3, to Formulation Example 2 or Formulation Example 4 at a ratio of 7: 3% by weight, Respectively.

Example  2: Dihydroxyacetone  And By Erit Rulos  The skin of the composed mixture On coloration  Sensory evaluation

In order to compare the makeup effect of the present invention, 20 participants were applied to Formulation Examples 2 to 4 on cuff skin (preferably eyebrow), and then sensory evaluation was performed based on the following index. That is, the skin color intensity, the natural-looking skin tone, the less streaking, the less odor, the homogenous skin tone, the quick coloring result (5 points: very good, 4 points: relatively good, 3 points: normal, 2 points: poor, 1 point) using fast 'coloring' result and skin drying Point: Very bad).

As a result, as shown in Fig. 2, dihydroxyacetone or erythrulose was contained only in Formulation Example 2, and Formulation Example 3, dihydroxyacetone and erythrulose in a weight ratio of 7: 3 Was found to have the highest sensory effect.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, those skilled in the art will appreciate that such specific embodiments are merely preferred embodiments and that the scope of the present invention is not limited thereby. something to do. It is therefore intended that the scope of the invention be defined by the claims appended hereto and their equivalents.

Claims (8)

A cosmetic composition for skin coloring comprising dihydroxyacetone (DHA) and erythrulose.
The cosmetic composition according to claim 1, wherein the dihydroxyacetone and the erythrulose are contained in an amount of 0.1 to 15% by weight based on the total weight of the composition.
The cosmetic composition according to claim 1, wherein the dihydroxyacetone and the erythrulose are mixed at a ratio of 10: 4: 1 to 5: 5 by weight.
The cosmetic composition according to claim 1, further comprising a film-forming agent and an alcohol.
The film forming apparatus according to claim 4, wherein the film forming agent is at least one selected from the group consisting of polyvinyl alcohol (PVA), polyvinyl acetate (PVAc) and acrylates copolymer .
The skin coloring according to claim 1, characterized in that the skin pigmentation is colored on at least one of the skin regions selected from the group consisting of scalp, chin, armpit, under the ears, ball, eyebrows and epidermis with hair follicles and hair follicles throughout the body .
The cosmetic composition according to any one of claims 1 to 4, wherein the composition is a peel off formulation.
7. The cosmetic composition according to any one of claims 1 to 6, characterized in that the composition is for eyebrow makeup.

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