KR102418845B1 - Powder cosmetic composition comprising vitamin c - Google Patents

Abstract

The present invention relates to a powder-type cosmetic composition comprising pure vitamin C. More specifically, the present invention relates to a powder-type cosmetic composition comprising an aqueous phase containing pure vitamin C, and a powder phase in which the aqueous phase is collected. The powder-type cosmetic composition maintains the stability of the high content of pure vitamin C by blocking exposure to temperature and light by collecting the aqueous phase containing the high content of pure vitamin C in the powder phase.

Description

Powder-type cosmetic composition containing vitamin C {POWDER COSMETIC COMPOSITION COMPRISING VITAMIN C}

The present invention relates to a powder-type cosmetic composition containing vitamin C, and more particularly, to a powder-type cosmetic composition containing a high content of pure vitamin C.

Pure vitamin C is also called ascorbic acid (L-ascorbic acid) as one of the trace elements for maintaining the function and health of the human body. It helps the body to resist infection, heal wounds, and keep tissues healthy, and as one of the antioxidants, it prevents cell damage caused by free radicals. Pure vitamin C is contained in fruits and vegetables, and is abundant in persimmons, tangerines, tomatoes, broccoli, spinach, strawberries, melons, and potatoes.

In addition, pure vitamin C is a cofactor that plays an important role in collagen production, increasing skin elasticity, preventing fine wrinkles, promoting wound recovery, and helping recovery after laser treatment or surgery.

In addition, by strengthening the resistance of capillaries to prevent bleeding, it promotes regeneration of skin during capillary dilatation, erythematous skin, acne treatment or after dermabrasion, where the function of capillaries is reduced. In other words, it has a whitening effect by inhibiting tyrosinase that forms melanin, and has an antioxidant action to reduce the produced melanin, preventing and thinning pigmentation such as spots and freckles, as well as various incomplete metabolism in the body, ultraviolet rays, etc. By removing the free radicals generated by this, it inhibits aging, increases the resistance of the skin, and makes it strong.

However, when pure vitamin C is exposed to heat, light, or oxygen for a long time, it is difficult to use because discoloration and odor occur over time. This instability of pure vitamin C has a limitation in that it is difficult to develop a general formulation.

However, the excellent antioxidant role of pure vitamin C has led to continuous development of formulations as the market for functional cosmetics expands. Formulations containing such high content of pure vitamin C appear as general emulsions, mucus, etc. in terms of appearance.

In addition, due to the difficulty of developing the formulation of pure vitamin C, formulations are being developed through the use of stable vitamin C derivatives, but it has the disadvantage of being more expensive than pure vitamin C.

Therefore, there is a need for development of a cosmetic composition comprising a high content of pure vitamin C having excellent formulation stability.

Korean Patent Publication No. 10-2015-0049191

An object of the present invention is to solve the above problems, and in the present invention, it is to provide a powder-type cosmetic composition containing a high content of pure vitamin C and having stable physical properties and appearance of a powder.

The problem to be solved by the present invention is not limited to the problem(s) mentioned above, and another problem(s) not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention is an aqueous phase comprising pure vitamin C; and a powder phase in which the aqueous phase is collected; provides a powder-type cosmetic composition comprising.

The pure vitamin C may be included in an amount of 5 to 25% by weight based on the total weight of the powder-type cosmetic composition.

The aqueous phase may further include 5 to 25% by weight of a polyol, 0.01 to 1% by weight of an antioxidant, 0.01 to 4% by weight of a water-soluble vitamin, and the remaining amount of water, based on the total weight of the powdery cosmetic composition.

The aqueous phase includes: a first aqueous phase comprising polyol, pure vitamin C, antioxidants, water-soluble vitamins and water; and a second aqueous phase comprising water-soluble vitamins and water.

The aqueous phase, based on the total weight of the aqueous phase, 50 to 70% by weight of the first aqueous phase; and 30 to 50% by weight of the second aqueous phase.

The polyol may be at least one selected from the group consisting of propanediol, glycerin, and propylene glycol.

The antioxidant may be ferulic acid.

The water-soluble vitamins include vitamin B1, vitamin B2, vitamin B6, vitamin B12, biotin, vitamin G (glutathione), ascorbyl glucoside, sodium ascorbyl phosphate (SAP), magnesium ascorbyl phosphate. Corbyl phosphate (magnesium ascorbylphosphate; MAP), calcium ascorbyl phosphate (calsium ascorbylphosphate), ascorbic acid polypeptide, ethyl ascorbyl ether (ethyl ascorbyl ether), ascorbyl stearate (ascorbyl stearate), From the group consisting of ascorbyl ethylsilanol pectinate, ascorbyl tetraisopalmitate, ascorbyl dipalmitate and ascorbyl palmitate It may be at least one selected.

The powder phase is at least selected from the group consisting of silica silylate, silica dimethyl silylate, silica dimethicone silylate, and silica caprylyl silylate. It may include one silica.

Based on the total weight of the powder cosmetic composition, the silica may be included in an amount of 2 to 10% by weight.

The powder-type cosmetic composition may not include at least one of an oil, a surfactant, and a pigment.

The cosmetic composition may be at least one formulation selected from the group consisting of ampoules, serums and essences.

The powdery cosmetic composition of the present invention maintains the stability of the high content of pure vitamin C by blocking the exposure to temperature and light by collecting the aqueous phase containing the high content of pure vitamin C on the powder.

In addition, when the powder-type cosmetic composition of the present invention is applied to the skin, the aqueous phase captured on the powder is released, so you can feel the convenient use of the powder-to-essence, and it can provide an excellent feeling of use and effects such as whitening to the skin. have.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is an image showing the results of confirming the light stability of the cosmetic compositions of Example 1 and Comparative Example 1 of the present invention.
2 is an image showing the results of confirming the stability according to the aqueous phase content for the cosmetic compositions of Examples 2 to 4 and Comparative Examples 2 to 3;

It should be noted that, in the following description, only the parts necessary for understanding the embodiment of the present invention are described, and the description of other parts may be omitted in a range that does not disturb the gist of the present invention.

The terms or words used in the present specification and claims described below should not be construed as being limited to their ordinary or dictionary meanings, and the inventors have appropriate concepts of terms to describe their invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined in Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents that can be substituted for them at the time of the present application It should be understood that there may be variations and variations.

Hereinafter, the present invention will be described in detail.

The present invention provides an aqueous phase comprising pure vitamin C; and a powder phase in which the aqueous phase is collected; provides a powder-type cosmetic composition comprising.

The term 'powder type' of the present invention means a form that changes from powder to essence (water phase) when the powder cosmetic composition of the present invention is used. Specifically, the powder-type cosmetic composition of the present invention relates to a powder-to-essence type powder cosmetic composition. In the case of the powder-to-essence powder cosmetic of the present invention, vitamin C is blocked from temperature and light by collecting the aqueous component inside the hydrophobic silica. When this powdery cosmetic is applied to the skin, the aqueous phase component containing a high content of pure vitamin C inside the hydrophobic silica releases the pure vitamin C and hydrophobic silica captured inside the hydrophobic silica when rolling with physical force while using the product. As it breaks, the powder is mixed and changed into an essence form, thereby giving the effect of maintaining the efficacy of pure vitamin C.

The pure vitamin C is for skin whitening, antioxidant, and wrinkle improvement for effectively improving pigmentation such as spots, freckles, and age spots, and may be included in an amount of 5 to 25% by weight based on the total weight of the powdery cosmetic composition, , Preferably it may be included in 15 to 25% by weight.

The aqueous phase may further include a polyol, an antioxidant, a water-soluble vitamin, and the remainder of water.

The polyol is for moisturizing improvement, and may be at least one selected from the group consisting of propanediol, glycerin, and propylene glycol.

The polyol may be included in an amount of 5 to 25% by weight, preferably 5 to 20% by weight, based on the total weight of the powdery cosmetic composition.

If the content of the polyol is less than 5% by weight based on the total weight of the powdery cosmetic composition, it is not collected in the powder phase (eg, silica), so that the aqueous phase and the powder phase are separated, and when it exceeds 25% by weight, the aqueous phase is The specific gravity increases and it can be kneaded in the form of a slurry.

The antioxidant is intended to improve the functional characteristics of the powder-type cosmetic composition, and may prevent oxidation and discoloration as well as the effect of improving skin pigmentation, and may be ferulic acid.

The antioxidant may be included in an amount of 0.01 to 1% by weight, preferably 0.05 to 0.6% by weight, based on the total weight of the powdery cosmetic composition.

When the content of the antioxidant is less than 0.01% by weight based on the total weight of the powder-type cosmetic composition, the role as an antioxidant cannot be expected, and when it exceeds 1% by weight, precipitation may occur.

The water-soluble vitamins are for the role of skin whitening and antioxidant, vitamin B1, vitamin B2, vitamin B6, vitamin B12, biotin, vitamin G (glutathione), ascorbyl glucoside (ascorbyl glucoside), sodium ascorbic acid corbyl phosphate (sodium ascorbylphosphate; SAP), magnesium ascorbylphosphate (MAP), calcium ascorbylphosphate, ascorbic acid polypeptide, ethyl ascorbyl ether ), ascorbyl stearate, ascorbyl ethylsilanol pectinate, ascorbyl tetraisopalmitate, ascorbyl dipalmitate and ascorbyl dipalmitate It may be at least one selected from the group consisting of corbyl palmitate.

The water-soluble vitamin may be included in an amount of 0.01 to 4% by weight, preferably 0.05 to 2% by weight, based on the total weight of the powdery cosmetic composition.

When the content of the water-soluble vitamin is less than 0.01% by weight based on the total weight of the powder-type cosmetic composition, skin whitening and antioxidant effects cannot be expected, and when it exceeds 4% by weight, precipitation may occur.

The aqueous phase of the present invention may contain a residual amount of water.

The remaining amount means a remaining amount such that the weight of the total composition further including the essential components and other components of the powder-type cosmetic composition is 100% by weight.

On the other hand, the award is a first award; and a second aqueous phase; may consist of.

By including the aqueous phase divided into a first aqueous phase and a second aqueous phase, it is possible to prevent the powder phase from being prepared in the form of a dough when the aqueous phase is collected in the powder phase.

The first aqueous phase may include polyol, pure vitamin C, antioxidants, water-soluble vitamins, and water, and the second aqueous phase may include water-soluble vitamins and water.

Specifically, the aqueous phase is based on the total weight of the aqueous phase, 50 to 70% by weight of the first aqueous phase; And 30 to 50% by weight of the second aqueous phase; may include.

When the content of the first aqueous phase is less than 50% by weight based on the total weight of the aqueous phase, the powder is blown away so badly that it is not collected and the aqueous phase and the powder phase may be separated, and when it exceeds 70% by weight, the powder phase The water phase may not be included in the water and may be changed to a dough form.

The powder phase may include silica.

The silica is hydrophobic and for collecting the aqueous phase, silica silylate (Silica Silylate), silica dimethyl silylate (Silica Dimethyl Silylate), silica dimethicone silylate (Silica Dimethicone Silylate), silica caprylyl silylate (Silica Caprylyl) Silylate) may be at least one selected from the group consisting of.

The silica may be included in an amount of 2 to 10% by weight, preferably 3 to 7% by weight, based on the total weight of the powdery cosmetic composition.

When the content of the silica is less than 2% by weight based on the total weight of the powder-type cosmetic composition, it is changed to a slurry state and cannot maintain powder properties, and when it exceeds 10% by weight, manufacturing difficulties occur because the volume increases. , it becomes impossible to change from powder to essence when the powder cosmetic composition of the present invention is applied to the skin.

On the other hand, the powder cosmetic composition of the present invention is characterized in that it does not contain oil or surfactant, preferably oil and surfactant, in order to maintain powder properties.

When the oil or surfactant is included in the powder cosmetic composition of the present invention, the aqueous phase and the powder phase may be prepared in the form of a dough when the aqueous phase is collected in the powder phase.

On the other hand, it may be preferable that the powder cosmetic composition of the present invention be used as an essence for skin care rather than as a base makeup to cover blemishes or blemishes. For this reason, it is characterized in that it does not contain at least one pigment selected from the group consisting of titanium dioxide and zinc oxide for the purpose of covering the skin.

If, when the pigment is included in the powder cosmetic composition of the present invention, the specific gravity of the formulation may increase and difficulty in dispersion may occur.

The cosmetic composition may be at least one formulation selected from the group consisting of ampoules, serums and essences.

The above description describes the technical idea of the present invention using one embodiment, and various modifications and variations are possible by those skilled in the art to which the present invention pertains without departing from the essential characteristics of the present invention. Accordingly, the embodiments described in the present invention are for explanation rather than limiting the technical spirit of the present invention, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Example

The powder-type cosmetic composition comprising a high content of pure vitamin C of the present invention was prepared by mixing/dispersing each group with the ingredients and contents of Table 1 below. In Table 1 below, the content of the first aqueous phase and the content of the second aqueous phase represent the content (% by weight) based on the total weight of the aqueous phase.

Specifically, the components of the first aqueous phase were put into a mixer and mixed at 80° C. at 500 rpm for 20 minutes. Then, the components of the second aqueous phase were added to the mixer and mixed at room temperature at 500 rpm for 20 minutes. Then, the powdery ingredients were added to the mixer and mixed at room temperature at 2000 rpm for 10 minutes to enclose the powdery water phase, thereby preparing a cosmetic composition in powder form.

At this time, in the case of Comparative Example 1, the components of the first aqueous phase were added to a mixer and mixed at 80° C. at 500 rpm for 20 minutes. Then, the ingredients of the second aqueous phase were added to the mixer and mixed at room temperature at 500 rpm for 20 minutes to prepare a liquid cosmetic composition.

ingredient Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 first
Awards
(Group 1) DI-Water 26.8 17.8 27.8 37.8 63.8 7.8 47.8 propanediol 10 10 10 10 10 10 10 Ascorbic Acid 20 20 20 20 20 20 20 Ferulic acid 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Glutathione 0.1 0.1 0.1 0.1 0.1 0.1 0.1 second
Awards
(Group 2) DI-Water 37 46 36 26 5 56 16 Ethyl Ascorbyl Ether One One One One One One One powder
(Group 3) Silica Silylate 5 5 5 5 - 5 5 Total (wt%) 100 100 100 100 100 100 100 First aqueous phase content (% by weight) 60 50 60 70 90 40 80 Second aqueous phase content (wt%) 40 50 40 30 10 60 20

Experimental example

Experimental Example 1: Light stability test

The cosmetic compositions prepared according to Example 1 and Comparative Example 1 were observed in a sunny window under the same conditions for 4 weeks, and the results are shown in FIG. 1 .

Referring to FIG. 1 , it was confirmed that the cosmetic composition in powder form prepared according to Example 1 did not change color, but the cosmetic composition in liquid form prepared according to Comparative Example 1 was discolored to yellowish brown.

Experimental Example 2: Stability test according to water content

The results of confirming the properties of the cosmetic compositions prepared according to the changes in the content of the first aqueous phase and the content of the second aqueous phase of Examples 2 to 4 and Comparative Examples 2 to 3 in Table 1 are shown in FIG. 2 below.

Referring to FIG. 2, in Examples 2 to 4, it was confirmed that the aqueous phase was stably collected on the powder phase to maintain the powder phase.

On the other hand, in Comparative Example 2, powder floating occurred, and it could be confirmed that the aqueous phase was separated in the lower layer, and in Comparative Example 3, it was confirmed that the powder properties were not maintained due to the change in the shape of the dough.

Claims (12)

Water containing pure vitamin C; and
Includes; powder phase in which the aqueous phase is collected;
The aqueous phase comprises: a first aqueous phase comprising polyol, pure vitamin C, antioxidants, water-soluble vitamins and water; and a second aqueous phase comprising water-soluble vitamins and water. The method according to claim 1,
The award is based on the total weight of the powder-type cosmetic composition,
5 to 25% by weight of pure vitamin C, 5 to 20% by weight of polyol, 0.01 to 1% by weight of antioxidant, 0.01 to 4% by weight of water-soluble vitamin, and the remaining amount of water, a powder-type cosmetic composition. delete delete The method according to claim 1,
The award is based on the total weight of the award,
50 to 70% by weight of a first aqueous phase; and
30 to 50% by weight of the second aqueous phase; comprising, a powder-type cosmetic composition. The method according to claim 1,
The polyol is at least one selected from the group consisting of propanediol, glycerin, and propylene glycol, a powder cosmetic composition. The method according to claim 1,
The antioxidant is ferulic acid (ferulic acid), the powder cosmetic composition. The method according to claim 1,
The water-soluble vitamins include vitamin B1, vitamin B2, vitamin B6, vitamin B12, biotin, vitamin G (glutathione), ascorbyl glucoside, sodium ascorbyl phosphate (SAP), magnesium ascorbyl phosphate. corbyl phosphate (magnesium ascorbylphosphate; MAP), calcium ascorbylphosphate, ascorbic acid polypeptide, ethyl ascorbyl ether, ascorbyl stearate, From the group consisting of ascorbyl ethylsilanol pectinate, ascorbyl tetraisopalmitate, ascorbyl dipalmitate and ascorbyl palmitate At least one selected from, the powder-type cosmetic composition. The method according to claim 1,
The powder phase is at least selected from the group consisting of silica silylate, silica dimethyl silylate, silica dimethicone silylate, and silica caprylyl silylate. A powder-type cosmetic composition comprising one silica. 10. The method of claim 9,
Based on the total weight of the powder-type cosmetic composition,
The silica is contained in an amount of 2 to 10% by weight, a powder cosmetic composition. The method according to claim 1,
The powder-type cosmetic composition does not include at least one of an oil, a surfactant, and a pigment, the powder-type cosmetic composition. The method according to claim 1,
The cosmetic composition is an ampoule. The at least one formulation selected from the group consisting of serums and essences, the powder-type cosmetic composition.

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