KR101061612B1 - Cosmetic composition for promoting exfoliation - Google Patents

Abstract

The present invention relates to a cosmetic composition for promoting keratin exfoliation, the composition of the present invention is characterized in that it contains 0.01 to 7.0% by weight of Hibiscus sabdariffa extract, which is a rose of sharon, belonging to the family . In this way, the organic acid in the hibiscus sabridpa extract extracts cosmetics such as softener, nourishing cosmetics, nourishing cream, massage cream, essence, pack, soap, foam cleansing, body cleanser, shampoo, rinse, etc. By adding to the back and the like, there are few side effects such as skin irritation, and the exfoliation promoting effect is excellent, which is suitable for eliminating keratin stratification.

According to the present invention constituted as described above, there is provided a cosmetic composition that improves the stability of the product and improves the exfoliation effect, skin softness and moisturizing effect compared to the conventional cosmetics without any side effects on the skin.

Keratin, hibiscus saabalipa, moisturizing effect

Description

Cosmetic composition for promoting keratin exfoliation {Cosmetic composition for expediting peeling off keratin}

The present invention relates to a cosmetic composition for promoting keratin exfoliation, and more specifically, by adding an organic acid in the extract of Hibiscus sabdariffa petal, which is a rose of sharon, to the cosmetic, exfoliating the skin while reducing side effects such as skin irritation. The present invention relates to a cosmetic composition for promoting keratin exfoliation that is excellent in accelerating the effect and eliminates keratin stratification.

In general, as a person ages, the cell renewal rate of the skin epidermis tends to decrease rapidly. In general, the turn-over time of the human skin epidermis is usually increased to about 10 days before the thirties, or about 17-20 days to more than 30 days after the thirties. As the turnover time increases, the firmness, smoothness, elasticity, etc. of the young skin disappear, and keratin accumulates on the epidermis of the skin, resulting in rough skin.

In order to prevent the roughness of the skin in order to remove the keratin by various conventional methods, exfoliation is to regenerate the dermal tissue by proliferating keratinocyte (keratinocyte) on the surface of the skin, commonly used keratin removal The substance softens the skin by increasing the turnover of skin cells by altering the balance of dermal proliferation and exfoliation of the keratin in the skin epidermis. However, excessive exfoliation exfoliates the skin's inherent function of the skin barrier, making the skin sensitive and easily dried, which is undesirable.

Retinoic acid and alpha hydroxy acids (AHA) known in the art are known to be effective as the exfoliation and cell regeneration material as described above. AHA hardens the skin, has excellent ability to remove wrinkles, collagen, and regenerates the skin, but its use has been limited due to irritation. Especially, AHA has a disadvantage that it should be used together with sunscreen because the skin is sensitive to ultraviolet rays. .

Therefore, there is a need for compositions that can exfoliate and improve the dullness of the skin without irritation with regard to exfoliation and skin cell regeneration, and natural extracts may be considered suitable as such components.

It is an object of the present invention to provide a cosmetic composition for promoting keratin exfoliation that is excellent in eliminating keratin exfoliation due to excellent exfoliation promoting effect while having fewer side effects such as skin irritation.

Thus, the present inventors have completed the present invention as a result of research on various natural plant extracts to provide a cosmetic composition for promoting exfoliation and skin metabolism without increasing skin sensitivity.                         

In other words, the present invention was completed by applying the organic acid in the hibiscus sabaripa petals excellent in the use of the skin is not sensitive to the sun, skin irritation and excellent in use. The organic acid in the sabris petals exerts a desirable function of promoting so-called skin metabolism, which increases the thickness and density of the epidermis and the dermis as a exfoliation and skin renewal booster.

The cosmetic composition for promoting exfoliation of the present invention for achieving the above object;

It is characterized by containing 0.01 to 7.0% by weight of the extract of the petal of Hibiscus sabdariffa, a rose of sharon, based on the total weight of a conventional cosmetic composition.

Hibiscus sabaripa petal extract according to the present invention contains a human effective biologically active substance to quickly discharge the excretion of waste when drinking, excellent efficacy in arteriosclerosis, anticancer components, enteritis, bronchitis. In addition, pyruvic acid (pyruvic acid) in hibiscus saabdaripa extract is known to have a weight loss effect as well as protein solubilization effect by fast lipolysis, such as DHA (dihydoxyacetone). It also dissolves proteins in skin patches to remove dead skin cells and increase skin regeneration rate.

 By using the above characteristics, the organic acid in the hibiscus saabalipa petal is extracted with water, such as softener, nourishing cream, nourishing cream, massage cream, essence, pack and other cosmetics, soap, foam cleansing, body cleanser, shampoo, rinse By adding and blending to a hair cleanser and an ointment for external skin, it can be manufactured as a cosmetic and cleaning agent for promoting exfoliation.

The organic acid in the hibiscus extract is a form in which citric acid (Citric acid, 10%) and pyruvic acid (5%) are dissolved in an aqueous solution. Pyruvate plays the same role as AHA, but is a natural organic acid with less skin irritation, superior moisturizing ability than lactic acid, and is effective for cell regeneration without irritation (Levy and goldschmidt 1979).

Pyruvate acts as an antibacterial agent such as salicylic acid and dissolves proteins to increase skin regeneration rate. The following shows the structural formulas of citric acid and pyruvic acid in hibiscus extract.

[constitutional formula]

       Citric Acid Pyruvic Acid

Hereinafter, a method of extracting an organic acid in hibiscus saabalipa petal according to the present invention.

First, in order to extract the organic acid in the hibiscus sabaripa petal, soak in soft water-soluble organic solvent. It is concentrated under vacuum after filtration. The obtained mucus phase is extracted by purifying the citric acid and pyruvic acid components in the petal through a precipitation reaction with a butylene glycol derivative. Excess butylene glycol derivatives are removed and then sterilized. The extracted organic acid contains 8-10 wt% of citric acid and 4-5 wt% of pyruvic acid on the aqueous solution.

The present invention according to the above configuration provides a cosmetic composition that improves the stability of the product and does not have side effects on the skin, but the keratin exfoliation effect, skin softness and moisturizing effect are almost the same or improved compared to conventional cosmetics.

Hereinafter, the hibiscus organic acid and lactic acid, which is an existing AHA component, will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited thereto.

Examples 1-4, Comparative Examples 1-4

Next, the cosmetics of Examples 1 to 4 and Comparative Examples 1 to 4 were prepared using the compositions of Tables 1 to 4 below.

That is, a flexible lotion containing a hibiscus organic acid and a flexible cosmetic water containing lactic acid were prepared in a conventional manner using the components shown in Table 1 below.

Flexible Cosmetics Name weight(%) Example 1 Comparative Example 1 Hibiscus organic acid 0.1 - 1,3-butylene glycol 5.0 5.0 Monolauric acid polyoxyethylene sorbitan 1.3 1.3 Polyoxyethylene lauryl ether 0.7 0.7 ethanol 15.0 15.0 Spices 0.2 0.2 antiseptic Quantity Quantity Purified water Remainder Remainder Lactic acid - 0.1

The lotion was prepared according to a conventional method using the ingredients shown in Table 2 below.

Lotion Name weight(%) Example 2 Comparative Example 2 Stearic acid 0.5 0.5 ethanol 10.0 10.0 vaseline 1.0 1.0 Squalane 2.5 2.5 Liquid paraffin 6.0 6.0 Monooleic acid polyoxyethylene sorbitan 1.5 1.5 1,3-butylene glycol 8.0 8.0 Sodium Ethylenediaminetetraacetic Acid 0.05 0.05 Triethanolamine 0.8 0.8 Spices 0.2 0.2 antiseptic Quantity Quantity Antioxidant Quantity Quantity Hibiscus organic acid 0.05 - Purified water Remainder Remainder Lactic acid - 0.05

Essence was prepared in a conventional manner with the components shown in Table 3 below.

essence Name weight(%) Example 3 Comparative Example 3 glycerin 5.0 5.0 1,3-butylene glycol 5.0 5.0 Sesquioleate sorbitan 0.4 0.4 Polylauric acid polyoxyethylene sorbitan 1.0 1.0 Paraoxybenzoic Acid Methyl 0.2 0.2 ethanol 2.0 2.0 Purified water Remainder Remainder Vaseline 5.0 5.0 Cetanol 0.2 0.2 Hibiscus organic acid 0.5 - Lactic acid - 0.5

Hereinafter, a cream was prepared in a conventional manner using the ingredients shown in Table 4.

cream Name weight(%) Example 4 Comparative Example 4 Stearic acid 0.5 0.5 ethanol 10.0 10.0 vaseline 1.0 1.0 Squalane 2.5 2.5 Liquid paraffin 6.0 6.0 Monooleic acid polyoxyethylene sorbitan 1.5 1.5 1,3-butylene glycol 8.0 8.0 Sodium Ethylenediaminetetraacetic Acid 0.05 0.05 Triethanolamine 0.8 0.8 Spices 0.2 0.2 antiseptic Quantity Quantity Antioxidant Quantity Quantity Hibiscus organic acid 0.1 - Purified water Remainder Remainder Lactic acid - 0.1

Experimental Example 1. Turnover Effect of Hibiscus Organic Acid

In order to determine the turnover force of the hibiscus organic acid according to the present invention, Examples 1 to 4 and Comparative Examples 1 to 4 were prepared. The experimental method measures the effect of cell regeneration by changing the chromaticity of the protein color change. The skin color is measured with a Minolta CR300 (Konica Minolta Ltd.) chromaticity changer after patching the protein discoloration cream on the inside of the arm for 2 hours. Measurements are expressed in individual typologic angles (ITA). Higher ITA values indicate clean skin. The ITA values over time are represented by Di, Dn, and Do, respectively, and the calculated values are as follows.

CT (%) = (Di-Do) / (Dn-Do) x 100

 Where CT: cell turn-over

         Di: Intermediate measurement ITA value

         Do: Initial ITA value (0% turnover)                     

         Dn: final ITA value (100% turnover)

The subjects measured in 20 subjects and the time elapsed when the CT (%) value was 100% is shown in Table 5 below.

sample Turnover cycle (day) Example Comparative example One 12.3 ± 2.1 14.2 ± 2.8 2 12.5 ± 3.5 14.0 ± 2.1 3 11.8 ± 4.5 14.3 ± 3.5 4 12.6 ± 2.8 13.8 ± 2.8

As shown in Table 5 above, it can be seen that the cosmetic composition according to the present invention containing the hibiscus organic acid has a shorter turnover cycle than the composition of the comparative example containing the conventional lactic acid. Therefore, it can be seen that when the hibiscus organic acid is applied to the skin, the stratum corneum is effectively prepared compared to lactic acid.

Experimental Example 2 Skin Moisturizing Effect of Hibiscus Organic Acid

In order to determine the moisturizing power of the formulation containing the hibiscus organic acid according to the present invention, the moisture retention ability of Examples 1 to 4 and Comparative Examples 1 to 4 was performed. Moisture retention capacity was measured by using Corneometer (Courage + Khazaka, GmbH, Germany) to measure the electrical conductivity of the skin surface, using a sample of the Examples and Comparative Examples in a constant temperature and humidity room maintaining a temperature of 25 ℃, 40% relative humidity The amount of water loss (g / hm ² ) after 30 minutes and 1 hour after washing the face was measured. The test subjects were 20 people, and the results of three measurements are shown in Table 6 below.

Measuring time Example Comparative example One 2 3 4 One 2 3 4 Average value before application 68 68 67 66 68 66 68 63 Average value after application 30 minutes 56 57 62 52 73 64 70 60  1 hours 54 49 54 49 61 57 61 57

As shown in Experimental Example 2, it was confirmed that the moisture loss of the skin is approximately 7-9% less than lactic acid when the cosmetic composition according to the embodiment of the present invention containing the hibiscus organic acid is applied.

Experimental Example 3.

In order to determine the skin irritation properties of the cosmetics prepared according to the above examples and comparative examples, after patching for 20 adults for 48 hours, the skin condition was visually examined after 30 minutes to 1 hour and firstly determined. It was removed and read again 48 hours later as a second determination, and the results are shown in Table 7 below.

Very good; (E), excellent; (G), normal; (M), poor; (B)

sample face arm Example Comparative example Example Comparative example One G G E E 2 E G E G 3 E G E G 4 E M E M

 From the skin irritation test results of Experimental Example 3 described above, products such as Examples containing hibiscus organic acids hardly recognized irritation compared to lactic acid.

 The cosmetic composition for promoting exfoliation of the present invention according to the above constitution is a cosmetic containing an extract of an organic acid in the petal of Hibiscus sabdariffa, and the cosmetic according to the present invention has no exfoliation effect without skin side effects. It is a useful invention that shows skin softening and moisturizing effects.

Claims (2)

A cosmetic composition for promoting keratin exfoliation, characterized by containing 0.01 to 7.0% by weight of the extract of Hibiscus sabdariffa petals relative to the total weight of a conventional cosmetic composition. According to claim 1, wherein the extract of the hibiscus Sabdalpa petal is a cosmetic composition for promoting keratin exfoliation, characterized in that the organic acid extract in which 8 to 10% by weight of citric acid and 4 to 5% by weight of pyruvic acid are dissolved in an aqueous solution.