TW201813625A - Skin coloring cosmetic composition - Google Patents

Abstract

The present invention relates to a cosmetic composition for skin coloring and, more specifically, to a cosmetic composition for skin coloring, containing, as active ingredient: dihydroxyacetone (DHA) forming melanoidin, which is a brown compound, through a reaction of the amino group of an amino acid contained in the dead skin cell layer; and erythrulose increasing a skin coloring-lasting effect of DHA. According to the present invention, the cosmetic composition for skin coloring penetrates the surface of the skin and the dead skin cells of the skin so as to exhibit an excellent skin coloring ability, exhibits an excellent skin coloring-lasting ability preventing initial coloring from changing over time, has a vividly long-lasting effect in an applied region, and has an advantage of producing a very natural eyebrow shape.

Description

Cosmetic composition for skin coloring

The present invention relates to a cosmetic composition for skin coloring, and more particularly to a cosmetic composition for topical skin coloring.

Cosmetics are classified into various types according to the use site, the purpose of use, or the composition and shape of the product. They can be divided into basic cosmetics (skin care cosmetics), beauty cosmetics (makeup cosmetics), and body care cosmetics ( Body wash cosmetics), hair care cosmetics, oral cosmetics, fragrance cosmetics, etc.

Beauty cosmetics are applied to the face, fingernails and other bodies after using basic products to give a sense of color, thereby revealing the beauty of skin tone and improving skin defects that cannot be covered by basic products. This kind of cosmetics can be classified as base makeup and brightening makeup. The base makeup is to make the skin look healthier and more beautiful by evenly treating the skin color of the entire face, or covering skin problems such as melasma and freckles. The above-mentioned brightening makeup is to emphasize local colors on lips, eyes, eyebrows, cheeks, or fingernails, or to impart shadows to make it appear three-dimensional. For brightening makeup, use lipstick, blusher, eye shadow, eyeliner, eyebrow pencil, nail polish, etc.

One of the most impressive things is the eyebrows. Generally, the eyes, nose, and mouth can be changed to some extent through makeup, but it is impossible to physically change the shape. Only the eyebrows can change shape.

Depending on the shape, size, position, and color of eyebrows, people ’s impressions will be completely different. Therefore, people have been working hard to maintain beautiful eyebrow shapes and colors, regardless of ancient and modern times. Recently, not only women, but men have also made good impressions. Deep concern for eyebrow makeup.

Because the eyebrows are part of the body tissue composed of hair, depending on the physical characteristics of each body, there are some differences in the position, thickness, and thickness of the eyebrow hair. Especially with age, the number of eyebrow hairs will gradually decrease or the eyebrows will appear. Hair thinning and other issues make it difficult to maintain a beautiful eyebrow shape.

The eyebrow pencil, eyebrow shadow, mascara, etc. used in the past are short-lasting and easy to wash off when washing your face, so you need to make up every time, which is cumbersome.

For this reason, the following patent document 1 describes the eyebrow-shaped sponge that completes the makeup of the eyebrows in a stamp-like manner without drawing the eyebrows. However, there is a problem that the duration of the eyebrow shape is very short and the implementation is inconvenient.

In addition, Patent Document 2 below describes an eyebrow makeup eyebrow pencil composition. The eyebrow makeup eyebrow pencil composition is an oil-soluble film-forming agent added to a conventional eyebrow makeup eyebrow pencil composition and contains an emulsifier. Emulsified humectants and water-soluble pigments to improve persistence. However, this can only result in the temporary formation of color on the skin surface, the tinting power and the color holding power are still weak, the eyebrow color required by the user cannot be fully obtained, and an elastic coating film cannot be formed, and the shape of the eyebrows is not clear.

To address these issues, some women choose semi-permanent eyebrows. However, semi-permanent eyebrows have the disadvantages of severe skin irritation and skin problems, and the inability to change the shape and color of the eyebrows in accordance with fashion. In addition, everyone knows that with the passage of time, there is a problem that the color of the eyebrows changes to blue.

In order to obtain a healthy complexion by sunbathing, the skin is exposed to the sun for a long time, which will cause sunburn due to ultraviolet radiation, promote skin aging, and may induce skin cancer. Therefore, there is an urgent need to develop a skin coloring composition that leads to a safer skin tanning.

Therefore, there is an urgent need to develop a skin-colored cosmetic composition. The above-mentioned cosmetic composition needs to be capable of exhibiting excellent tinting strength without irritating the skin, and exhibiting a natural complexion with a uniform and bright color and excellent long-term retention by excellent tinting retention.

Against such a technical background, the present inventors have developed a cosmetic composition for skin coloring that contains dihydroxyacetone and erythrulose as active ingredients, and the composition improves the skin coloring power and the skin coloring durability.

Prior Art Literature Patent Literature 1: Korean Public Utility Model No. 20-2011-0005915 (2011.06.15) Patent Literature 2: Korean Public Patent No. 10-1996-0000193 (1996.01.25)

Therefore, as a result of intensive research, the present inventors have developed a skin coloring cosmetic composition for developing a brown compound-like black essence that forms a brown compound by an amino group reaction of an amino acid contained in the skin stratum corneum. The skin external preparation composition containing dihydroxyacetone and erythrulose as active ingredients was confirmed to have excellent skin coloring power and skin coloring sustainability, and completed the present invention.

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

The present invention also provides a cosmetic prepared by using the cosmetic composition for skin coloring.

In addition, the present invention also provides the use of a mixture composed of dihydroxyacetone and erythrulose as a skin coloring improver in the preparation of a cosmetic composition or a cosmetic for skin coloring.

According to the cosmetic composition for skin coloring according to the present invention, it not only penetrates the skin surface, but also penetrates into the stratum corneum of the skin, so that it can exert excellent skin tinting power, and it can exhibit excellent coloring without changing the initial coloring over time. The skin color lasting effect, and has the effect of being able to maintain a clear long-lasting effect on the application site, and has the advantage of showing the shape of the eyebrows very naturally.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those skilled in the art to which the present invention pertains. In general, the nomenclature used in this specification is a commonly used nomenclature well known in the art.

The present invention relates to a cosmetic composition for skin coloring containing dihydroxyacetone and erythrulose, and more particularly to a cosmetic composition for skin coloring containing dihydroxyacetone and erythrulose as active ingredients. It reacts with the amino group of the amino acid contained in the skin stratum corneum to form a brown compound-like melanin, and the erythrulose enhances the skin coloring effect of dihydroxyacetone.

The cosmetic composition can be formulated into, for example, nutrition creams, massage creams, eye creams, moisturizers and toners, lotions, moisturizers, and tears, and the like is preferably tears. In the case of tear-off type, the special hiding power can realize the coloring more effectively. For example, for dense eyebrows, the tear formulation can relatively increase the contact area of the cosmetic composition with the skin, and can more effectively achieve skin coloring.

In one embodiment of the present invention, in the case of applying a tear-type dosage form on the skin, in order to compare the tinting strength and the persistence, the mixing ratio of dihydroxyacetone and erythrulose is selected, and in order to have an appropriate degree of skin tinting, adjustment After the skin is applied (exposed) for the mixture, it is confirmed whether the coloring state is maintained when a certain period of time elapses after coloring. As a result, as shown in FIG. 1, when comparing the skin tinting strength (darkness of the skin tone) of the tear-type dosage form, it was confirmed that the higher the concentration of dihydroxyacetone, the darker the brown color of the skin. On the other hand, it was confirmed that the persistence of skin coloring (the extent to which the coloring effect on the skin is maintained for a long time) is superior to that of Formulation Example 2 in Formulation Example 1 in which the mixed weight ratio of dihydroxyacetone and erythrulose is 7: 3. .

In another embodiment of the present invention, sensory evaluation is performed on the skin coloration of a mixture composed of dihydroxyacetone and erythrulose. As a result, as shown in FIG. 2, it was confirmed that dihydroxyacetone and erythrulose were mixed at a weight ratio of 7: 3 with respect to Comparative Example 1 and Comparative Form Example 2 containing dihydroxyacetone or erythrulose alone. Formulation Example 1 showed the most excellent sensory effect.

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

In the present invention, the content of the mixture is preferably 0.1 to 15% by weight, and more preferably 1.0 to 10% by weight based on the total weight of the composition. At this time, the above mixture may be mixed with dihydroxyacetone and erythrulose in a ratio of 10 ~ 4: 1 ~ 5, preferably 7 ~ 5: 3 ~ 5, and most preferably 7: 3 based on the weight.

Here, when the content of dihydroxyacetone in the above composition is less than 0.1% by weight, a desired skin coloring effect (skin tinting power) cannot be obtained, and when the content is 10% by weight or less, the cytotoxicity and the stability of the dosage form No problem.

In addition, when the content of erythrulose in the above composition is less than 0.1% by weight, a desired skin coloring effect (skin tinting power) cannot be obtained, and when the content is 5% by weight or less, the cytotoxicity and the stability of the formulation No problem.

In the present invention, the composition may further include a film-forming agent and an alcohol, and the film-forming agent may be selected from the group consisting of polyvinyl alcohol (PVA), polyvinyl acetate (PVAc), and an acrylate copolymer. (Acrylates copolymer) is at least one kind of group, but is not limited thereto.

In the present invention, when the film forming agent is polyvinyl alcohol, its content in the composition may be 10 to 15% by weight; and when the alcohol is ethanol, its content in the composition may be 8 to 12 weight%.

In the present invention, when the composition is applied to the skin and dried, and when the formed film is removed, a color is deposited in the stratum corneum of the skin and the skin is colored.

In the present invention, when the above-mentioned tearing dosage form is compared with other dosage forms, it is not only effective in coloring at least one skin selected from the group consisting of the scalp, chin, armpits, horns, cheeks, eyebrows, and epidermis with hair roots and hair follicles, It is not limited to this, and can be effectively colored to the skin of any hair or fluff position including human mammalian body, such as hair, eyebrows, eyelashes, beards, chin beard, chest hair, back hair, arm hair, leg hair, Skin conditions at genital, nose, or ear hair.

In the present invention, the composition described above can enhance skin pigmentation and skin pigmentation persistence, but is not limited thereto.

The above-mentioned skin coloring power is indicated by the color intensity (darkness of the skin tone) of the skin coloring, and the skin coloring persistence refers to the degree of time for which the coloring of the skin is maintained.

In the present invention, the above composition can be used for tattoo eye makeup, but is not limited thereto.

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

In the present invention, the dosage form of the composition is not particularly limited, and is appropriately selected depending on the intended purpose. For example, it can be prepared from a skin toner (toner and lotion), nutrition toner, essence, nutrition cream, massage cream, mask, gel, essence, eye cream, eye essence, cleansing cream, facial cleanser, makeup remover Liquid, mask, loose powder, moisturizer, moisturizer, skin care oil, skin care essence any one of the formulations.

Another aspect of the present invention relates to a cosmetic prepared using the cosmetic composition for skin coloring.

The present invention is further described in detail through the following examples. These embodiments are only used to illustrate the present invention, and it is naturally clear to those having ordinary knowledge in the art that the scope of the present invention is not limited to these embodiments.

The cosmetic composition containing dihydroxyacetone and erythrulose of the present invention is not limited to 3 to 4 dosage forms, and can be produced from a variety of dosage forms (cosmetics). The performance, cost, and other conditions of the product can be realized as required. You can mix dihydroxyacetone and erythrulose in an appropriate ratio to control the skin pigmentation and skin pigmentation persistence.

Preparation example: Preparation of a tear-off dosage form.

With the composition of Table 1 below, tear-off formulation examples 1 to 2 and comparative formulation examples 1 to 2 were prepared. Table 1

It has been reported that when the content of dihydroxyacetone (Merk, Germany) is less than 10% by weight, there is no cytotoxicity; when the content of erythrulose (Pentapharm, Switzerland) is less than 5% by weight, there is no cytotoxicity, so In consideration of these situations, in order to enhance the skin coloring effect (tinting power, tinting persistence, and uniformity of tinting), dihydroxyacetone and erythrulose are mixed at an appropriate content to prepare a tear-type dosage form.

In addition, the above-mentioned formulation examples 1 to 2 or comparative formulation examples 1 to 2 further include polyvinyl alcohol (PVA) as a film-forming agent and ethanol as a component for adjusting the drying rate of the dosage form.

Example 1: Verification of skin coloring function of a mixture consisting of dihydroxyacetone and erythrulose.

Apply the tear-off dosage forms of dosage form examples 1 to 2 or comparative dosage form examples 1 to 2 to the skin for 3 hours (or 7 hours), wash the applied skin area with water after tearing, and then apply the skin of the above dosage form The parts were photographed at the time points after one day and nine days, and the skin was compared to maintain the coloration state (sustainability of skin coloration).

As a result, as shown in FIG. 1, when comparing the skin tinting strength (darkness of the skin tone) of the tear-type dosage form, it was confirmed that the higher the concentration of dihydroxyacetone, the stronger the brown color of the skin.

On the other hand, it was confirmed that Formulation Example 1 in which Dihydroxyacetone and erythrulose were mixed in a 7: 3 ratio with respect to Formulation Example 2 had the most excellent skin color persistence (the extent to which the coloring effect on the skin was maintained for a long time).

Example 2: Sensory evaluation of the degree of skin coloration of a mixture consisting of dihydroxyacetone and erythrulose.

In order to compare the cosmetic effect of the present invention, 20 participants were taken as subjects, and Comparative Example 1, Comparative Example 2, and Example 1 were applied to the skin of the wrist (preferably eyebrows), and sensory tests were performed using the following indicators as a standard. . That is, the color intensity of the skin, natural-looking skin tone, less streaking, less odor, homogenous skin tone, and rapid coloring results ( fast 'coloring' result), and skin drying as standard indicators, evaluated on a 5-point scale (5 points: very good; 4 points: relatively good; 3 points: average; 2 points: poor; 1 point :very bad).

As a result, as shown in FIG. 2, it is possible to confirm a dosage form example in which dihydroxyacetone and erythrulose were mixed at a ratio of 7: 3 with respect to Comparative Formulation Example 1 and Comparative Form Example 2 containing dihydroxyacetone or erythrulose alone. 1 shows the best sensory effect.

As described above, the features of the content of the present invention are described in detail. For those with ordinary knowledge in the art, it can be clearly recognized that these specific technologies are merely preferred embodiments, and the scope of the present invention is not limited thereto. Accordingly, the substantial scope of the invention can be defined as the claims and their equivalents.

no

FIG. 1 is a skin coloring cosmetic composition containing a mixture of dihydroxyacetone and erythrulose as an active ingredient, and is photographed at a time point of one day and nine days after being applied to the skin. A figure that keeps the skin colored. FIG. 2 is a schematic diagram showing the results of sensory evaluation of the degree of skin coloration after a skin-colored cosmetic composition containing a mixture of dihydroxyacetone and erythrulose as an active ingredient is applied to the skin.

Claims (9)

A cosmetic composition for skin coloring. The composition contains a mixture of dihydroxyacetone (DHA) and erythrulose as an active ingredient. The cosmetic composition according to claim 1, wherein the content of the mixture is 0.1 to 15% by weight relative to the total weight of the composition. The cosmetic composition according to claim 1, wherein the dihydroxyacetone and erythrulose are mixed in a ratio of 10 to 4: 1 to 5 based on weight. The cosmetic composition according to claim 1, further comprising a film-forming agent and an alcohol. The cosmetic composition according to claim 4, wherein the film-forming agent is selected from the group consisting of polyvinyl alcohol (PVA), polyvinyl acetate (PVAc), and acrylate copolymers (acrylates) copolymer). The cosmetic composition according to claim 1, wherein the skin is pigmented on a part of the skin selected from the group consisting of scalp, chin, armpits, horns, cheeks, eyebrows, and epidermis with hair roots and hair follicles throughout the body. Part coloring. The cosmetic composition according to claim 1 or 4, wherein the composition is formulated into a tear-off dosage form. The cosmetic composition according to claim 1 or 6, wherein the composition is used for eyebrow makeup. A use of a mixture consisting of dihydroxyacetone and erythrulose as a skin coloring improver in preparing a cosmetic composition or a cosmetic for skin coloring.