KR20100055099A - Skin whitening cosmetic composition containing natural crop powders as exfoliation surface skin cells - Google Patents

Abstract

PURPOSE: A cosmetic composition containing natural cereal powder is provided to physically remove skin dead cells and to absorb whitening ingredient. CONSTITUTION: A cosmetic composition for skin whitening contains natural cereal powder as a dead cell remover. The natural cereal is adzuki bean, chestnut cortex, brown rice, black rice, aurantii nobilis Pericarpium, oatmeal, or the rice bran. The composition further contains Rheum coreanum, Glycyrrhiza, or Persicae Semen extracts. The particular diameter of natural cereal powder is 10-1000 um. The composition contains the whitening ingredient in 0.05-5 weight%.

Description

Skin whitening cosmetic composition containing natural crop powders as exfoliation surface skin cells}

The present invention relates to a cosmetic composition for skin whitening containing natural grain powder as an exfoliant, and more particularly, by containing the natural grain powder as an exfoliant in the formulation, the physical exfoliation is primarily performed by the natural grain powder. Secondly, the present invention relates to a cosmetic composition for skin whitening, wherein the whitening functional ingredient is easily and quickly absorbed into the skin with exfoliated skin to give a whitening effect quickly with a small amount of the whitening functional ingredient.

In general, when applying the active substances contained in cosmetics to the skin without applying exfoliation and applying the cosmetics to the case of non-exfoliation, comparing the degree of absorption of the skin, applying cosmetics after exfoliation than Active substances are known to penetrate the skin well. However, ordinary whitening functional cosmetics do not include such exfoliation function, and in recent products, such exfoliation function exists, but exfoliates as chemical exfoliation using chemicals, not physical exfoliation. It does not exfoliate but it dissolves the dead skin and gives it an exfoliating effect. Therefore, these products lose their meaning as a whitening functional cosmetics because when applied to the skin for a certain period of time, the hyperkeratosis occurs, causing skin damage and the loss of moisture of the skin. Recently, Korean Patent No. 10-0515764 exists as a patent for a functional cosmetic containing physical exfoliation component, but the possibility that the component for physical exfoliation is a chemical particle may also irritate the skin. .

Therefore, there is a need for a natural material that is excellent in physical exfoliation efficacy while reducing skin irritation.

Accordingly, the inventors have tried to find a safe and non-skin exfoliating component and apply it to the cosmetic composition for whitening. As a result, our unique natural grain powder is safe for all skin types and will not cause specific skin problems. In addition, the present invention has been found to have an excellent skin exfoliation effect while preventing the loss of moisture of the skin because it does not damage the skin even when it is applied to the skin for a long time.

Accordingly, it is an object of the present invention to provide a cosmetic composition for skin whitening prepared by containing a skin remover without skin irritation with a whitening functional ingredient so that the whitening functional ingredient can be absorbed deep into the skin.

In order to achieve the above object, the present invention provides a cosmetic composition for skin whitening containing natural grain powder as an exfoliant.

In the present invention, by containing more than a certain amount of natural grain powder as an exfoliant to facilitate the absorption of the whitening functional ingredient in the skin due to the physical exfoliation effect of the natural grain powder, the whitening effect through the consumer as soon as possible compared to the existing products Was able to confirm. In addition, in the present invention, both the natural grain powder and the whitening functional ingredient were used as natural substances, not chemical substances, thereby minimizing irritation of the skin, thereby being used without any irritation to the skin.

Hereinafter, the present invention will be described in more detail.

Many active ingredients, including whitening functional ingredients, must pass through the various layers present on the skin before they can get deep into the skin. However, most of the active ingredients are interrupted by various obstacles inside the skin while passing through the various layers of the skin, so that we cannot reach the desired place, and the desired effect cannot be seen in a short time. Among them, the stratum corneum on the outermost surface of the skin is a layer that supports the defense and repair function of the skin, and can be said to be the most important layer for maintaining the health of the skin. The stratum corneum layer has a thickness of 0.02 as shown in FIG. It is overlapped with 15 to 20 layers of keratinocytes in about mm.

In addition, keratinocytes in the stratum corneum are arranged as if they are stacked with tiles, and intercellular lipids and natural moisturizing factor (NMF) materials are present between the cells and the cells like cement. Normally, the cells produced in the lowermost layer (base layer) of the epidermis are gradually pushed up to become keratinocytes constituting the stratum corneum for about 2 weeks. After 2 weeks, the keratinocytes are pushed up from the lowest layer of the stratum corneum to the uppermost layer. Naturally fall off with keratin. Recently, studies on the timely artificial exfoliation for skin care are good for skin health and skin beauty are actively published.

The present invention relates to a cosmetic composition for whitening containing natural grain powder as an exfoliant.

The natural grain powder, an exfoliant used in the present invention, exfoliates finely the exfoliation of the skin and helps the whitening functional ingredients to be absorbed deep into the skin in small amounts without being disturbed by the exfoliation of the skin. Has In the present invention, by using the natural grains for exfoliation to remove the proper amount of keratin from the skin without harm to the skin to maintain a healthy skin and various functional ingredients, especially whitening functional ingredients, especially thinned keratin layer due to the exfoliated keratin By allowing it to pass easily, you can maximize the whitening effect through exfoliation.

Natural grain powders used in the present invention may include powders such as yulmu, Angelica, green beans, red beans, yulpi, brown rice, black rice, dermis, oatmeal and rice bran, but are not limited thereto. The natural grains are preferably contained in 1 to 5% by weight based on the total weight of the composition. When the content of the natural grain powder exceeds 5% by weight is expected to cause significant skin irritation, less than 1% by weight can not see the effect of exfoliation.

In addition, the natural grain powder according to the present invention may be prepared by grinding each grain by a grinding method well known in the art, for example, a high speed mill, but is not limited thereto. The particle diameter of the natural grain powder according to the present invention is preferably 10 to 1000 μm, and when the same amount of powder is included, no exfoliation effect is observed when the natural grain powder having a particle diameter of less than 10 μm is used. Natural grain powders with particle diameters in excess of 1000 μm may cause skin damage due to high physical irritation when applied to the skin.

The whitening functional ingredient used in the present invention may include rhubarb extract, licorice extract or cabbage extract, but is not limited thereto. The extracts may be prepared by extracting each natural substance with water or an organic solvent in a manner well known in the art. In the present invention, the organic solvent may be used ethanol, preferably 80% ethanol. The whitening functional component may be used in an amount conventionally used in the art, and preferably used in an amount of about 0.05 to 5 wt% based on the total weight of the composition. However, the content may vary slightly depending on the whitening functional ingredient. For example, rhubarb extract is at least 0.1% by weight, licorice extract is at least 0.05% by weight, and cabbage extract should be included in the formulation at least 2.0% in order to see the whitening effect, when each content exceeds 5% by weight in the formulation May affect stability and cause skin irritation.

The exfoliating agent and the whitening functional ingredient used in the present invention are not organic and inorganic chemicals but are components derived from nature and are safe ingredients that are harmless to the human body. Therefore, the cosmetic composition according to the present invention can be produced as an environmentally friendly and safe cosmetics.

The cosmetic composition according to the present invention preferably has a formulation of a massage cream. In addition, the cosmetic composition according to the present invention may optionally further contain ingredients that are commonly added in the manufacture of massage cream in addition to the natural grain powder and the whitening functional ingredient.

Hereinafter, the present invention will be described in more detail with reference to the following Examples and Experimental Examples. However, the following Examples and Experimental Examples are provided only for the purpose of illustration in order to help the understanding of the present invention is not limited to the scope and scope of the present invention. In addition to the following examples to explain in more detail the preparation method of the composition of the present invention.

[Examples 1-2 and Comparative Examples 1-2]

First, yulmu was pulverized with a high-speed crusher and pulverized with 200 mesh net to obtain yulmu powder. Next, the aqueous phase raw materials were heated to 70 ° C. according to the composition according to Table 1 below, and mixed uniformly. At this time, rhubarb extract was sufficiently dispersed in the butylene glycol from the outside before input to the water phase. Then, the raw material ingredients were heated and melted at 70 ° C., and then the oily ingredients were slowly added to the aqueous phase ingredients under stirring, thereby preparing the massage creams of Examples 1 and 2 and Comparative Examples 1 and 2 (unit: wt%).

ingredient Comparative Example 1 Comparative Example 2 Example 1 Example 2 Oily ingredient Carnauba wax 0.6 0.6 0.6 0.6 Hydrogenated Polyisobutene 25 25 25 25 Glyceryl Stearate / PEG-100 Stearate 1.0 1.0 1.0 1.0 Hydrogenated Vegetable Oil 2 2 2 2 2-octyldodecanol 8 8 8 8 Behenyl alcohol One One One One Glyceryl Stearate One One One One Meadow Foam Seed Oil 3 3 3 3 Beeswax 0.9 0.9 0.9 0.9 antiseptic 0.25 0.25 0.25 0.25 Hydrogenated C6-14 Olefin Polymer 4 4 4 4 Cetearyl Alcohol / Cetearyl Glucoside 1.5 1.5 1.5 1.5 Water component Purified water Balance Balance Balance Balance Disodium D T 0.02 0.02 0.02 0.02 glycerin 2 2 2 2 Pearl powder - 8 2 5 Rhubarb Extract (Powder) 0.1 0.1 0.1 0.1 Butylene Glycol 5 5 5 5 antiseptic 0.3 0.3 0.3 0.3

Test Example 1 Evaluation of Stability

The emulsion stability evaluation was performed about the massage cream manufactured in the said Examples 1-2 and Comparative Examples 1-2. As a method of stability evaluation, the degree of separation of the aqueous phase and the oil phase was observed after 3 months at 4 ° C., 25 ° C. and 45 ° C. after the preparation, and the results are shown in Table 2 below.

Rated temperature Comparative Example 1 Comparative Example 2 Example 1 Example 2 4 ℃ ○ ○ ○ ○ 25 ℃ ○ △ ○ ○ 45 ℃ ○ △ ○ △

<Judgement criteria: ○: Good, △: Normal, X: Separation>

As can be seen from the results of Table 2, it was found that the higher the content of the natural grain powder, the worse the emulsion stability. Through this, when the natural grain powder is used above a certain content, it can be judged that the aggregation of the emulsified particles due to the interaction between the grain powders has an adverse effect on the emulsion stability.

[Test Example 2] Evaluation of skin exfoliation performance and whitening efficacy

After randomly dividing 30 men and women with normal skin age between 25 and 30 into three groups, Group 1 took a sample of Comparative Example 1 and applied it to one cheek of the face and Example 1 to the other cheek. After taking a predetermined amount of the sample and applied to gently massage for 10 minutes using both hands to test the effect of each sample for a week. Similarly, Group 2 applied Comparative Example 1 and Example 2, and Group 3 applied Comparative Example 1 and Comparative Example 2, respectively, to test their effects for one week.

Group 1 Group 2 Group 3 Comparative Example 1 Example 1 Comparative Example 1 Example 2 Comparative Example 1 Comparative Example 2 Exfoliation effect 1.2 4.3 2.2 6.5 1.3 8.5 Whitening effect 3.2 5.4 2.1 7.6 4.3 8.8 Skin irritation 0.9 3 2.3 5.1 1.4 8.3

<Criterion: According to the presence and degree of effect, the grade was divided from 0 to 10, and then the average value was calculated for each group and the effect. (The grade is closer to 0 without stimulation, no whitening effect, and closer to 10. Means more irritation and good whitening effect)>

As a result, in all groups, when the experiment with Comparative Example 1 that does not contain the natural grain powder did not have a clear exfoliation effect and whitening effect, it can be determined that there is no skin irritation. And the higher the content of the natural grain powder was found to increase the exfoliation effect and the whitening effect thereby. However, the results of Comparative Example 2 shows that when a certain amount of natural grain powder is included, a certain level of irritation is applied to the skin if the same site is used continuously for a week due to the physical irritation of the skin by the natural grain powder. Could.

Therefore, it was possible to determine a certain level of exfoliation and the whitening effect thereof, while minimizing the skin irritation caused by the natural grain powder, thereby determining the content of the natural grain powder. 2 proved to be superior to the existing whitening cosmetics.

EXAMPLES 3-11

First, natural grains such as Angelica, mung beans, red beans, yulpi, brown rice, black rice, dermis, oatmeal and rice bran, which are to be used as exfoliants, were pulverized with a high-speed grinder to obtain the respective natural grain powders. Next, according to the composition according to Table 4 and Table 5, the aqueous phase raw material was heated to 70 ℃ and uniformly mixed. At this time, rhubarb extract was sufficiently dispersed in the butylene glycol from the outside before input to the water phase. Then, the oily ingredients were heated and dissolved at 70 ° C., and then the oily ingredients were slowly added to the aqueous phase under stirring to prepare the massage creams of Examples 3 to 11 (unit: wt%).

ingredient Example 3 Example 4 Example 5 Example 6 Example 7 Oily ingredient Carnauba wax 0.6 0.6 0.6 0.6 0.6 Hydrogenated Polyisobutene 25 25 25 25 25 Glyceryl Stearate / PEG-100 Stearate 1.0 1.0 1.0 1.0 1.0 Hydrogenated Vegetable Oil 2 2 2 2 2 2-octyldodecanol 8 8 8 8 8 Behenyl alcohol One One One One One Glyceryl Stearate One One One One One Meadow Foam Seed Oil 3 3 3 3 3 Beeswax 0.9 0.9 0.9 0.9 0.9 antiseptic 0.25 0.25 0.25 0.25 0.25 Hydrogenated C6-14 Olefin Polymer 4 4 4 4 4 Cetearyl Alcohol / Cetearyl Glucoside 1.5 1.5 1.5 1.5 1.5 Water component Purified water Balance Balance Balance Balance Balance Disodium D T 0.02 0.02 0.02 0.02 0.02 glycerin 2 2 2 2 2 Angelica Powder 5 - - - - Mung Bean Powder - 5 - - - Red bean powder - - 5 - - Yulpi Powder - - - 5 - Brown Rice Powder - - - - 5 Rhubarb Extract (Powder) 0.1 0.1 0.1 0.1 0.1 Butylene Glycol 5 5 5 5 5 antiseptic 0.3 0.3 0.3 0.3 0.3

ingredient Example 8 Example 9 Example 10 Example 11 Oily ingredient Carnauba wax 0.6 0.6 0.6 0.6 Hydrogenated Polyisobutene 25 25 25 25 Glyceryl Stearate / PEG-100 Stearate 1.0 1.0 1.0 1.0 Hydrogenated Vegetable Oil 2 2 2 2 2-octyldodecanol 8 8 8 8 Behenyl alcohol One One One One Glyceryl Stearate One One One One Meadow Foam Seed Oil 3 3 3 3 Beeswax 0.9 0.9 0.9 0.9 antiseptic 0.25 0.25 0.25 0.25 Hydrogenated C6-14 Olefin Polymer 4 4 4 4 Cetearyl Alcohol / Cetearyl Glucoside 1.5 1.5 1.5 1.5 Water component Purified water Balance Balance Balance Balance Disodium D T 0.02 0.02 0.02 0.02 glycerin 2 2 2 2 Black rice powder 5 - - - Dermis powder - 5 - - Oatmeal powder - - 5 - Rice bran powder - - - 5 Rhubarb Extract (Powder) 0.1 0.1 0.1 0.1 Butylene Glycol 5 5 5 5 antiseptic 0.3 0.3 0.3 0.3

Test Example 3 Evaluation of Skin Exfoliation Performance and Whitening Efficacy

The exfoliation effect, whitening effect and skin irritation effect of the massage cream prepared in Examples 3 to 11 were examined in the same manner as in Test Example 2 for 30 males and females having normal skin aged 25 to 30 years. The results are shown in Table 6 below.

Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Example 10 Example 11 Exfoliation effect 6.4 6.5 6.6 6.3 6.1 6.8 6.2 6.1 6.3 Whitening effect 7.5 7.4 7.6 7.4 7.2 7.7 7.1 6.9 7.1 Skin irritation 5.1 4.9 5.2 5.1 5.2 5.3 5.2 4.9 5.0

In the results of Table 6, natural grain powders such as Angelica, mung beans, red beans, yulpi, brown rice, black rice, dermis, oatmeal, and rice bran according to the present invention, whitening functional ingredients are absorbed deep into the skin through the exfoliation effect and the whitening effect is achieved. It could be confirmed that the increase.

1 is an enlarged cross-sectional view of an enlarged stratum corneum.

Claims (6)

A cosmetic composition for skin whitening containing natural grain powder as an exfoliant. The cosmetic composition for skin whitening according to claim 1, wherein the natural grain powder is at least one powder selected from the group consisting of yulmu, donkey, green beans, red beans, yulpi, brown rice, black rice, dermis, oatmeal and rice bran. The cosmetic composition for skin whitening according to claim 1, wherein the composition further contains one or more whitening functional ingredients selected from the group consisting of rhubarb extract, licorice extract and cabbage extract . The cosmetic composition for skin whitening according to claim 1, wherein the natural grain is contained in an amount of 1 to 5% by weight based on the total weight of the composition. The composition for skin whitening according to claim 1, wherein the grain size of the natural grain powder is 10 to 1000 µm. The cosmetic composition for skin whitening according to claim 3, wherein the whitening functional component is contained in an amount of 0.05 to 5% by weight based on the total weight of the composition.

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