TWI761374B - Skin coloring cosmetic composition - Google Patents

Abstract

The present invention relates to a cosmetic composition for skin coloring, and more particularly, to dihydroxyacetone (DHA) containing, as an active ingredient, a melanoidin (melanoidin) that forms a brown compound by reacting with an amino group of an amino acid contained in the stratum corneum of the skin And a skin coloring cosmetic composition of erythrulose which enhances the skin coloring lasting effect of dihydroxyacetone. The cosmetic composition for skin coloring according to the present invention can penetrate not only the skin surface but also the stratum corneum of the skin, and can exhibit excellent skin coloring power. The coloring lasts long, and it has the advantage that it can stay vivid for a long time on the application site, and the shape of the eyebrows is very natural.

Description

Cosmetic composition for skin coloring

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

Cosmetics are classified into various categories according to the part of use, purpose of use, or the composition and shape of the product. Body wash cosmetics), hair care cosmetics, oral cosmetics, aroma cosmetics, etc.

Cosmetics for cosmetic use are applied on the face, fingernails and other bodies after using the basic products to give a sense of color, thereby showing the beauty of the complexion and improving the skin defects that the basic products cannot cover. This kind of cosmetic can be classified into base makeup and brightening makeup. The above-mentioned base makeup is to make the skin look healthier and more beautiful by evenly taking care of the complexion of the entire face, or covering skin problems such as melasma and freckles, The above-mentioned brightening makeup is to emphasize local color on lips, eyes, eyebrows, cheeks, or fingernails, or to give shadows to make them appear three-dimensional. Use lipstick, blush, eye shadow, eyeliner, eyebrow pencil, nail polish, etc. for brightening makeup.

Among them, the eyebrows are particularly impressive. Generally speaking, the eyes, nose, and mouth can be changed to some extent through makeup, but it is impossible to physically change the shape. Only eyebrows can change shape.

Depending on the shape, size, position, and color of the eyebrows, people's impressions will be completely different, so people have been trying to maintain beautiful eyebrow shape and maintain beautiful eyebrows no matter what. Recently, not only women but also men have been paying close attention to eyebrow makeup in order to make a good impression, such as color and so on.

Since the eyebrows are part of the body tissue composed of hair, according to the physical characteristics of each body, the position, thickness, thickness, etc. of the eyebrow hair are somewhat different, especially as the age increases, the number of eyebrow hair will gradually decrease or eyebrow hair will appear Problems such as thinning hair make it difficult to maintain a beautiful eyebrow shape consistently.

The eyebrow pencil, eyebrow shadow, mascara, etc. used in the past have a short duration and are easy to wash off when washing your face, so you need to touch up makeup every time, which is very cumbersome.

Therefore, the following Patent Document 1 describes an eyebrow-shaped sponge that completes the eyebrow makeup without drawing the eyebrows and seals the eyebrows, but there is a problem that the duration of the eyebrow shape is very short and the implementation is somewhat inconvenient.

In addition, the following Patent Document 2 discloses an eyebrow pencil composition for eyebrow makeup, wherein an oil-soluble film-forming agent is added to a conventional eyebrow pencil composition for eyebrow makeup, and the above-mentioned eyebrow pencil composition for eyebrow makeup contains an emulsifier for use in eyebrow makeup. Emulsifying humectants and water-soluble pigments for improved durability. However, this can only temporarily form coloration on the skin surface, the coloring power and coloring retention 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 solve these problems, some women opt for semi-permanent eyebrow tattoos. However, semi-permanent eyebrow tattoos have the disadvantages of severe irritation to the skin and causing skin problems, as well as the inability to change the shape and color of the eyebrows with fashion. In addition, everyone knows that as the years go by, there is a problem that the color of the tattooed 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 can promote the aging of the skin by causing sunburn with UV exposure, and May cause skin cancer. Therefore, there is an urgent need to develop safer skin tanning skin coloring compositions.

Therefore, there is an urgent need to develop a skin coloring cosmetic composition that exhibits excellent coloring power, does not irritate the skin, and exhibits a natural complexion of uniform and vivid color with excellent color retention power and can be maintained for a long time.

Against such a technical background, the present inventors have developed a skin coloring cosmetic composition containing dihydroxyacetone and erythrulose as active ingredients, which improves skin coloring power and skin coloring sustainability.

prior art literature

Patent Document 1: Korean Utility Model Publication No. 20-2011-0005915 (2011.06.15)

Patent Document 2: Korean Patent Publication No. 10-1996-0000193 (1996.01.25)

Therefore, the inventors of the present invention have conducted intensive studies in order to develop a melanoidin which forms a brown compound by the amino reaction of amino acids contained in the stratum corneum of the skin, and to develop a cosmetic composition for skin coloring that enhances the lasting effect of skin coloring. It was confirmed that the skin external preparation composition containing dihydroxyacetone and erythrulose as active ingredients has excellent skin coloring power and skin coloring lasting power, thereby completing the present invention.

Therefore, the objective of this invention is to provide the cosmetic composition for skin coloring which contains the mixture which consists of dihydroxyacetone and erythrulose as an active ingredient.

In order to achieve the above-mentioned object, the present invention provides a cosmetic composition for skin coloring containing a mixture of dihydroxyacetone and erythrulose as active ingredients.

In addition, the present invention also provides a cosmetic prepared using the above-mentioned cosmetic composition for skin coloring.

In addition, the present invention also provides the use of a mixture consisting of dihydroxyacetone and erythrulose as a skin coloration improving agent in the preparation of cosmetic compositions or cosmetics for skin coloring.

According to the cosmetic composition for skin coloring according to the present invention, not only the surface of the skin but also the stratum corneum of the skin can be permeated, and excellent skin coloring power can be exhibited. The skin coloration lasts for a long time, and it has the advantage that the effect can be vividly maintained for a long time on the application site, and the shape of the eyebrows is very natural.

Figure 1 shows a skin coloring cosmetic composition containing a mixture of dihydroxyacetone and erythrulose as an active ingredient applied to the skin, and photographed at time points of one day and nine days to compare the skin coloring lasting power to determine whether Diagram of maintaining the state of skin coloration.

2 is a schematic diagram showing the results of sensory evaluation of skin coloration degree after applying a skin coloring cosmetic composition containing a mixture of dihydroxyacetone and erythrulose as active ingredients to the skin.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by a person skilled in the art to which this invention belongs. generally In general, the nomenclature used in this specification is a commonly used nomenclature 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, wherein the dihydroxyacetone is passed through The melanoidin which reacts with the amino group of the amino acid contained in the stratum corneum of the skin to form a brown compound, and the above-mentioned erythrulose enhances the skin coloring lasting effect of dihydroxyacetone.

The above-mentioned cosmetic compositions can be formulated into, for example, nutritional creams, massage creams, eye creams, moisturizing creams and toners, lotions, moisturizing milks, and peel-offs, preferably peel-offs. In the case of tearing, the coloring can be achieved more effectively due to its unique covering power. For example, for lush eyebrows, the tear-off dosage form can relatively increase the contact area between the cosmetic composition and the skin, and can more effectively achieve skin coloration.

In one embodiment of the present invention, in the case of applying a peel-off dosage form on the skin, in order to compare the coloring power and the lasting power, the mixing ratio of dihydroxyacetone and erythrulose is selected, and in order to have an appropriate skin coloring degree, adjusting After the skin application (exposure) time of the above-mentioned mixture, it was confirmed whether or not the coloring state was maintained after a certain period of time after coloring. As a result, as shown in FIG. 1 , when the skin coloring power (skin tone) of the peel-off dosage forms was compared, it was confirmed that the higher the concentration of dihydroxyacetone, the darker the skin became. On the other hand, it was confirmed that the formulation example 1 in which the mixing weight ratio of dihydroxyacetone and erythrulose was 7:3 was the most excellent compared to the formulation example 2 in terms of the skin coloring sustainability (the extent to which the coloring effect on the skin is maintained for a long time) .

In another example of the present invention, a sensory evaluation was carried out on the skin coloration of a mixture consisting of dihydroxyacetone and erythrulose. As a result, as shown in Fig. 2, it was confirmed that the relative Among the comparative formulation examples 1 and 2 containing dihydroxyacetone or erythrulose alone, the formulation example 1 in which dihydroxyacetone and erythrulose were mixed in a weight ratio of 7:3 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 active ingredients.

In the present invention, the content of the mixture is 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 above mixture can be based on weight, and dihydroxyacetone and erythrulose can be mixed in a ratio of 10~4:1~5, preferably 7~5:3~5, most preferably 7:3.

Here, when the content of dihydroxyacetone in the above-mentioned composition is less than 0.1% by weight, the desired skin coloring effect (skin coloring power) cannot be obtained, and when the content is 10% by weight or less, cytotoxicity and dosage form stability There's no problem with that.

In addition, when the content of erythrulose in the above-mentioned composition is less than 0.1% by weight, the desired skin coloring effect (skin coloring power) cannot be obtained, and when the content is 5% by weight or less, cytotoxicity and dosage form stability There's no problem with that.

In the present invention, the composition may further contain a film-forming agent and alcohol, and the film-forming agent may be selected from polyvinyl alcohol (PVA), polyvinyl acetate (PVAc), and acrylate copolymers (acrylates copolymer) at least one in the group, but not limited to this.

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

In the present invention, when the above-mentioned composition is applied to the skin, dried, and the formed film is removed, color is deposited on the stratum corneum of the skin, and the skin is colored.

In the present invention, when the above-mentioned tear formulation is compared with other formulations, not only is it effectively colored on at least one skin selected from the scalp, chin, armpit, sideburns, cheeks, eyebrows, and epidermis with hair roots and hair follicles of the whole body, It is not limited to this, and can be effectively colored on the skin of any hair or down position on the mammalian body including humans, such as hair, eyebrows, eyelashes, beards, chin beards, chest hair, back hair, arm hair, leg hair, Skin conditions where genital hair, nose hair, or ear hair are located.

In the present invention, the above-mentioned composition can enhance skin coloring power and skin coloring lasting power, but is not limited to this.

The above-mentioned skin coloring power shows the color intensity (skin tone) of skin coloring, and the skin coloring lasting power refers to the degree of the color retention time of the coloring on the skin.

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

In the present invention, the above-mentioned composition can be used for eyebrow makeup, but is not limited to this.

In the present invention, the dosage form of the above-mentioned composition is not particularly limited, and is appropriately selected according to the intended purpose. For example, it can be prepared to be selected from the group consisting of toner (toner and lotion), nutritional lotion, serum, nutritional cream, massage cream, mask, gel, serum, eye cream, eye serum, facial cleanser, facial cleanser, makeup remover It can be any dosage form in the group consisting of liquid, mask, loose powder, body lotion, body cream, skin care oil, and skin care essence.

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

The present invention will be described in further detail below through examples. These examples are only for illustrating the present invention, and it is obvious to those having ordinary knowledge in the art that the scope of the present invention is not limited to these examples.

The cosmetic composition containing dihydroxyacetone and erythrulose of the present invention is not limited to 3 to 4 dosage forms, and can be produced in a variety of dosage forms (cosmetics), depending on the performance, cost, and other conditions of the product. , dihydroxyacetone and erythrulose can be mixed in an appropriate ratio, thereby controlling the skin coloring power and skin coloring sustainability.

Preparation Example: Preparation of tear-off dosage forms.

With the composition of the following Table 1, the tear-off dosage forms examples 1-2 and the comparative dosage forms examples 1-2 were prepared.

It has been reported that when the content of dihydroxyacetone (Merk, Germany) is 10 wt% or less, there is no cytotoxicity; when the content of erythrulose (Pentapharm, Switzerland) is 5 wt% or less, there is no cytotoxicity, so , In consideration of these circumstances, in order to enhance the skin coloring effect (coloring power, coloring sustainability, coloring uniformity), dihydroxyacetone and erythrulose are mixed with appropriate content to prepare a tear-off type dosage form.

In addition, the above-mentioned dosage form examples 1 to 2 or comparative dosage form examples 1 to 2 further contain 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 formulations of formulation examples 1 to 2 or comparative formulation examples 1 to 2 on the skin for 3 hours (or 7 hours), wash the smeared skin with water after tearing, and then apply the above formulations to the skin. The site was photographed at time points after one day and nine days to compare whether the skin remained pigmented (skin pigmentation persistence).

As a result, as shown in FIG. 1 , when the skin coloring power (skin tone) of the peel-off dosage forms was compared, it was confirmed that the higher the concentration of dihydroxyacetone, the darker the skin became.

On the other hand, it was confirmed that Formulation Example 1 in which dihydroxyacetone and erythrulose were mixed at a ratio of 7:3 had the most excellent skin coloring lasting power (the extent to which the skin coloring effect was maintained for a long time) compared to Formulation Example 2.

Example 2: Sensory evaluation 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 used as objects to apply the comparative formulation example 1, the comparative formulation example 2, and the formulation example 1 to the wrist skin (preferably eyebrows), and the following indexes were used as the standard to conduct a sensory inspection. . That is, color intensity of skin, natural-looking skin tone, less streaking, less odor, homogenous skin tone, rapid coloring results ( fast 'coloring' result), and skin drying as standard indicators, which were evaluated on a 5-point scale (5 points: very good; 4 points: relatively good; 3 points: fair; 2 points: poor; 1 point :very bad).

As a result, as shown in FIG. 2 , it was confirmed that a dosage form example in which dihydroxyacetone and erythrulose were mixed at a ratio of 7:3 to the comparative dosage form example 1 and comparative dosage form example 2 containing dihydroxyacetone or erythrulose alone 1 shows the most excellent sensory effect.

The characteristic parts of the present invention are described in detail above, and those with ordinary knowledge in the art can clearly recognize that these specific techniques are only preferred embodiments, and the present invention The scope of the invention is not limited to this. Accordingly, the substantial scope of the present invention may be defined as the claimed scope and equivalents thereof.

Claims (8)

A cosmetic composition, characterized in that the composition is a peel-off cosmetic composition for improving the uniformity and persistence of skin coloration, and contains dihydroxyacetone (DHA) and erythrulose as active ingredients The mixture, film-forming agent and ethanol, wherein relative to the total weight of the cosmetic composition, the content of the mixture of dihydroxyacetone and erythrulose is 10 to 15% by weight, and the dihydroxyacetone, erythritol The weight ratio of ketose, film-forming agent and ethanol is 7-5:3-5:12:10, and the film-forming agent is polyvinyl alcohol (PVA). The cosmetic composition according to claim 1, wherein the content of the mixture of dihydroxyacetone and erythrulose is 10% by weight relative to the total weight of the cosmetic composition. The cosmetic composition according to claim 1, wherein the weight ratio of the dihydroxyacetone, erythrulose, film-forming agent, and ethanol is 7:3:12:10. The cosmetic composition according to claim 1, wherein the cosmetic composition has a natural-looking skin tone when applied to the skin. The cosmetic composition according to claim 1, wherein the skin coloring is coloring a local part of skin with hair. The cosmetic composition according to claim 5, wherein the hair is selected from the group consisting of hair, eyebrows, eyelashes, chin beard, beard, cheek hair, chest hair, back hair, At least one of the group consisting of arm hair, armpit hair, leg hair, genital hair, nose hair and ear hair. The cosmetic composition according to claim 6, wherein the cosmetic composition is used for makeup of eyebrows or eyelashes. A use of a mixture consisting of dihydroxyacetone, erythrulose, a film-forming agent and ethanol in the preparation of a pull-off cosmetic composition for improving the uniformity and persistence of skin coloration, characterized in that: relative to the cosmetic The total weight of the composition, the content of the dihydroxyacetone and erythrulose is 10 to 15% by weight, and the weight ratio of the dihydroxyacetone, erythrulose, film-forming agent and ethanol is 7 to 5:3 ~5:12:10, the film former is polyvinyl alcohol.

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