KR100750870B1 - Cosmetic composition containing algae extract for effect on improving the skin complexion - Google Patents

Abstract

A cosmetic composition for improving transparency of skin complexion comprising the algae extract is provided to make the skin complexion be clean and transparent by supplying nutrients and energy to skin cells and promoting turn-over of epidermal cells. The cosmetic composition for improving transparency of skin complexion comprises 0.01-30.0 wt.% of the algae extract obtained by fermenting Dunaliella Salina in a photo bioreactor and extracting the fermented Dunaliella Salina, and is formulated as soft lotion, nutrition lotion, massage cream, nutrition cream, pack, gel, essence, lipstick, makeup base, foundation, lotion, ointment, cream, patch or spray.

Description

Cosmetic composition for improving skin transparency containing seaweed extract {Cosmetic composition containing Algae extract for effect on improving the skin complexion}

1 is a result of surveying the definition of transparent skin.

2 is VISIA-CR used to measure the skin brightness.

3 is a graph measuring skin brightness change using Examples 1 to 2 and Comparative Example 1 of the present invention.

4 is a graph measuring changes in skin moisture content using Examples 1 and 2 and Comparative Example 1 of the present invention.

FIG. 5 is a graph measuring changes in skin evenness using Examples 1 to 2 and Comparative Example 1 of the present invention. FIG.

6 is a graph measuring skin angular mass changes using Examples 1 to 2 and Comparative Example 1 of the present invention.

The present invention relates to a cosmetic composition for improving skin transparency containing seaweed extract. More specifically, the cosmetic composition according to the present invention contains seaweed extract extracted from Dunaliella Salina, thereby supplying energy to skin cells and promoting turn-over of epidermal cells to promote age. For example, it can improve the skin clear and transparent due to the influence of external environment and stress.

In general, cosmetics are intended to clean the body, to make themselves beautiful and attractive, and to prevent aging by protecting the skin or hair from ultraviolet rays or drying. Recently, with the development of industrial society and the increase of social activities, the self-consciousness to actively express oneself is increasing, and the desire to care for and maintain the health of one's own skin using cosmetics is increasing. Accordingly, basic cosmetics in various forms and formulations are being researched and developed, and cosmetics that improve skin dullness are recognized as important products for customers.

The skin is divided into three layers of epidermis, dermis and subcutaneous fat tissue in order from the outside, and protects the human body from physical and chemical stimuli from the external environment. Among them, the epidermis is divided into the stratum corneum, granule layer, polar layer, and basal layer from the outside. The epidermal cells that make up the skin are made in the bottom basal layer, grow up to the stratum corneum, become old keratin and fall off, always leaving the surface of new skin Will be maintained. This skin growth cycle takes about 28 days, based on healthy adolescence, slows down the growth rate with age, disappears the clarity as the old keratin accumulates, and with age, the skin is stressed and loses its initial energy level. Energy metabolism is also reduced. In this process, the mitochondria of the skin cells are affected by external stress, and their function is lowered, the cell activation power is decreased, the skin cells are not supplied with sufficient nutrition, and the turn-over of the skin cells is reduced. This will cause fine wrinkles on the skin, poor color, and make the skin look dull. On the other hand, young children have very fast skin growth cycles of 10 days and have smooth and transparent skin. Therefore, the ideal skin care is to remove old dead skin cells and promote the skin to grow faster. Generally, peeling products and skin massage packs are used to remove dead skin cells. However, excessive removal of dead skin cells by physical and chemical methods can damage the skin and accelerate skin aging. Therefore, it is most desirable to promote skin growth so that live skin cells are not damaged and old keratin is not accumulated.

Therefore, various cosmetic raw materials are being developed in the sense of promoting the turn-over of skin cells. Looking at the external environment in recent years, the use of animal raw materials due to declining consumer's preference for animal raw materials and ripples such as mad cow disease It is rapidly shrinking and raw materials derived from natural plants are in the spotlight. With this trend, many plant extracts, yeast extracts, and minerals are used as raw materials of the concept of promoting skin metabolism and ATP synthesis, thereby promoting the activity and regeneration of skin cells. However, most of the effects are difficult to recognize. Therefore, the development of cosmetics having a visible effect on skin transparency improvement by skin cell activation is an urgent and important problem.

Accordingly, the present inventors searched and studied extracts that have a visible effect on improving the transparency of the skin among natural extracts, Dunaliella Salina, which is a natural parasitic algae in salt lakes with a salt content of 30% or more. Focusing on the strong vitality of), the seaweed extract was found to be able to promote the growth of skin cells by supplying the energy necessary for the skin, and completed the present invention.

Accordingly, an object of the present invention is to provide a cosmetic composition for improving skin transparency containing seaweed extract extracted from Dunaliella Salina.

In order to achieve the above object, the cosmetic composition for improving skin transparency according to the present invention is characterized in that it contains seaweed extract extracted from the seaweed Dunaliella Salina (Dunaliella Salina).

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

The seaweed extract used in the present invention is obtained by culturing Microalga Dunaliella Salina through a special fermentation process using an optical bioreactor and extracting it from it. Bio-Dusali manufactured by Pentapharm was used. Dunaliella Salina is a basophilic bacterium naturally occurring in Salt Lake, which contains more than 30% of salt. It is a species of Salina in the family Dunaliella of the family Dunaliellaceae. It survives exposure to extreme conditions such as high osmotic pressure, high oxygen concentration and high UV radiation. The algae needs large amounts of energy to survive, and this energy comes from photosynthesis. The strong vitality and energy-generating ability of Dunaliella salina can act on the skin to energize the skin cells and supply new energy. The seaweed extract, which is extracted from it, contains a mixture of amino acids and carbohydrates. It recharges the energy and protects and stimulates the mitochondria, the energy centers of skin cells, thereby promoting ATP synthesis to supply new energy to the skin. This energy generating power of the seaweed extract, when contained in the cosmetic composition, as a result of promoting the turn-over of the skin cells to make the skin look clear, transparent and healthy.

In the cosmetic composition according to the present invention, the seaweed extract is contained in an amount of 0.01 to 30.0% by weight, preferably 0.1 to 10.0% by weight based on the total weight of the composition. This is because the desired effect can not be expected at less than 0.01% by weight, if it exceeds 30.0% by weight it is difficult to control the viscosity of the cosmetic formulation is difficult and economical difficult to develop as a cosmetic formulation.

Cosmetic compositions using the same can be used in cosmetics for improving skin transparency, and the formulation is not particularly limited, for example, softening longevity, nutrition longevity, massage cream, nutrition cream, pack, gel, essence, lipstick, makeup It may be a formulation of a base, foundation, lotion, ointment, gel, cream, patch or spray.

Hereinafter, the present invention will be described in more detail with reference to Examples and Test Examples, but the scope of the present invention is not necessarily limited to these examples.

[Poll]

We surveyed 30 Korean adults (ages 30-49) to define the definition of transparent skin. The results are shown in Figure 1 below.

As shown in FIG. 1, respondents defined transparent skin in order of light skin tone, moist skin, smooth skin, uniform skin tone, and less keratinous skin. Thus, in order to verify the effect of improving skin transparency, the above items were tested by the methods of the following test examples.

[Examples 1 and 2 and Comparative Example 1]

By changing the 'Bio-Dusali' content of the seaweed extract with the composition of Table 1, Examples 1 and 2 and Comparative Example 1 were prepared. The following formulations are solubilized skin formulations and are in weight percent.

division Raw material name Example 1 Example 2 Comparative Example 1 Water component Purified water To 100 To 100 To 100 Butylene glycol 3 3 3 glycerin 3 3 3 Bio-Dusali 1.0 7.0 - Kiwi Extract 0.5 0.5 0.5 Grape extract 0.5 0.5 0.5 Calcium gluconate 0.2 0.2 0.2 Magnesium gluconate 0.2 0.2 0.2 Diel Panthenol 0.5 0.5 0.5 Disodium ID 0.02 0.02 0.02 Alcohol ingredients Ethanol 95% 10.0 10.0 10.0 Phenyl Trimethicone 0.2 0.2 0.2 Fiji 60 Hydrogenated Castor Oil 0.3 0.3 0.3 antiseptic Quantity Quantity Quantity incense Quantity Quantity Quantity

<< Manufacturing Method of Examples 1 and 2 and Comparative Example 1 >>

(1) The aqueous phase component was dissolved and mixed uniformly at room temperature.

(2) The alcohol component was dissolved and mixed uniformly at room temperature.

(3) A solubilized skin formulation was prepared by slowly adding (2) to (1) while stirring at room temperature.

Test Example 1 Skin Brightness Enhancement Effect

The skin formulations having the compositions of Examples 1 and 2 and Comparative Example 1 were applied to 30 Korean adult women (30-49 years old) on the facial skin twice a day for 4 weeks to measure the change in brightness. Skin brightness evaluation was performed using VISIA-CR (see FIG. 2 below). The VISIA-CR was used for the purpose of skin brightness evaluation, and the same site was measured at the 0, 1, 2, and 4 week visits of the subjects using the VISIA-CR. The measurement site was photographed in front of the face and analyzed using Image-pro plus software (version 5.01). VISIA-CR measured the forehead on Chin-cup, the forehead supporter, and measured the same facial photograph as Week 0 using a camera located in the machine. The skin lightness was determined by the measured value of the skin tone. The lighter the skin, the higher the measured value, and the darker the skin, the lower the measured value. The results are shown in Table 2 and FIG. 3.

Skin brightness measure parameter value 0 weeks 1 week 2 weeks 4 weeks Example 1 192.5 193 194.2 197 Example 2 192 193.2 195 197.8 Comparative Example 1 192.2 193 193.7 194

From the results in Table 2 and FIG. 3 below, it can be seen that Examples 1 to 2 using the seaweed extract 'Bio-Dusali' significantly increased skin brightness. In addition, the larger the content of Bio-Dusali was larger. The measured values of Examples 1, 2, and 4 showed a tendency to increase compared to week 0, and after 4 weeks of use, there was a statistically significant level (p <0.05) to increase skin brightness. Observed.

[Test Example 2] skin moisture content increase effect

The skin formulations having the compositions of Examples 1 and 2 and Comparative Example 1 were applied to the skin of Korean women (30-49 years old) 30 times twice a day for 4 weeks to measure changes in moisture content. The skin moisturizing amount was evaluated using a coronometer.

After 30 minutes in the constant temperature and humidity room, the test area (leg and ball area) was measured 5 times using a Koniometer (CM825 Courage & Khazaka, Germany) and the average of three measurements except the maximum and minimum. Recorded. The higher the skin's moisturization, the higher the measurement and the lower the measurement. The results are shown in Table 3 and FIG. 4.

Skin Moisture Measurements parameter value 0 weeks 1 week 2 weeks 4 weeks Example 1 67.7 71 77 78 Example 2 67.7 75 80.5 82.3 Comparative Example 1 67.7 70.5 71.4 72.7

From the results of Table 3 and FIG. 4 below, Examples 1 and 2 show a greater increase in moisture content in the skin than Comparative Example 1, and the water content of the skin increases significantly as the content of the seaweed extract Bio-Dusali increases. Could see. In addition, although the increase slowed after 2 weeks, it was found that the water content also increased as the use time increased.

[Test Example 3] Effect of improving the uniformity of the skin

In order to confirm the effect of improving the uniformity of the skin of the skin preparation of Examples 1 to 2 and Comparative Example 1 containing Bio-Dusali according to the present invention, it was measured using VISIA-CR in Test Example 1. The improvement of skin uniformity was judged by the deviation value of each measurement week from the values.

The skin formulations having the compositions of Examples 1 and 2 and Comparative Example 1 were applied to facial skin twice a day for 4 Korean females (30-49 years old) for 30 weeks to measure changes in skin evenness. It was. VISIA-CR was used to measure the same site at week 0, week 1, week 2, and week 4 of the subjects. The measurement site was photographed in front of the face and analyzed using Image-pro plus software (version 5.01). VISIA-CR measured the forehead on Chin-cup, the forehead supporter, and measured the same facial photograph as Week 0 using a camera located in the machine. From the measured values of skin tone, the degree of improvement of skin evenness was determined as a deviation value in each measurement parking. In skin evenness, the measured value is low if the skin uniformity is good, and the measured value is high if the skin uniformity is not good. The results are shown in Table 4 and FIG. 5.

Skin Evenness Measure parameter value 0 weeks 1 week 2 weeks 4 weeks Example 1 11.25 9.75 8.86 8.85 Example 2 11.27 9.57 8.46 8.38 Comparative Example 1 11.25 10.21 9.87 9.88

 From the results of Table 4 and FIG. 5, Examples 1 and 2 using the seaweed extract Bio-Dusali was found to be excellent in improving the evenness of the skin compared to Comparative Example 1. In the case of Examples 1 and 2, the measured deviation value showed a statistically significant decrease (p <0.05) in the 4th week value compared to the 0th week, and the uniformity of the skin of Bio-Dusali due to the larger decrease in Example 2 It was confirmed that there is an improvement in the evenness.

[Test Example 4] skin angular mass reduction effect

The skin formulations having the compositions of Examples 1 and 2 and Comparative Example 1 were applied to facial skin twice a day for 4 weeks against 30 Korean adults (30-49 years old) women and the angular mass changes were measured. The measurement was carried out by collecting a keratin specimen using a keratin tape (tape), the keratin was collected by using D-Squame to measure the degree of peeling of keratin. The left and right parts were collected by D-Squame, and the right (left) part was collected by Black transparent tape and collected on D-Squame Standard Storage Cards (CUDERM, USA).

Keratin collected with D-squame and Black transparent tape is a bitmap image by taking 40x and 700x digital photos, respectively, with Hi-scope (Hirox, Japan) and Charmview (Moritex, Japan) connected to a computer. This was calculated using the BMI image analysis software (WINaTech, USA) to calculate the area of the keratin (pixel number). The analytical values were analyzed by using paired t-test (SPSS version 10) before and after 1, 2, and 4 weeks. The results are shown in Table 5 and FIG. 6.

Skin angular mass measurement Angular mass (× 10000 pix) average value 0 weeks 1 week 2 weeks 4 weeks Example 1 18.77 14.67 11.59 11.04 Example 2 18.52 15.21 10.26 8.38 Comparative Example 1 18.45 16.59 14.53 14.87

 From the results of Table 5 and Figure 6, it can be seen that Examples 1 and 2 using the seaweed extract Bio-Dusali is superior to the skin angular mass reduction effect compared to Comparative Example 1. In Examples 1 and 2, the angular mass decreased statistically significant (p <0.05) compared to week 0 after 4 weeks of use, and the reduction in skin angular mass of Bio-Dusali was greater because the decrease in Example 2 was larger. It was found out.

[Test Example 5]

In order to confirm the effect of improving the skin transparency of the cosmetic composition according to the present invention, the skin formulation having the composition of Examples 1 to 2 was 20 female Korean (30-49 years old) women (Example 1: 10, Example 2: Ten subjects were surveyed whether the skin was smoother or clearer than before, after using it twice a day for 4 weeks. The results are shown in Tables 6 and 7 below.

Skin smoothing evaluation result Item 1 week 2 weeks 4 Weeks persons % persons % persons % Yes 2 10 11 55 16 80 That's it 15 75 9 45 4 20 Not so 3 15 0 0 0 0 Not like that 0 0 0 0 0 0

Skin transparency improvement evaluation result Item 1 week 2 weeks 4 Weeks persons % persons % persons % Yes 2 10 5 25 7 35 That's it 11 55 13 65 13 65 Not so 6 30 2 10 0 0 Not like that One 5 0 0 0 0

As can be seen in Table 6, from the second week after using the product, all the subjects responded that the skin became smooth, and it was confirmed that there was an improvement in skin smoothness of the seaweed extract Bio-Dusali.

In addition, as can be seen in Table 7, 90% of the subjects felt that the skin became transparent at 2 weeks after using the product, and from 4 weeks, all responded that the skin became transparent. From this, it was confirmed that the seaweed extract used in the present invention, Bio-Dusali, is effective at an appreciable level in improving skin transparency.

As described above, the present invention relates to a cosmetic composition containing seaweed extract effective for improving skin clarity. Conventionally, the ingredients and products of the concept that make the skin clear and transparent come out on the market, but there was a problem that it is difficult to recognize the efficacy. The development of cosmetics can be said to have great significance. The cosmetic composition has an effect of increasing skin brightness, increasing skin moisture content, improving skin evenness, improving skin angular mass, improving skin smoothness, and as a result, improving skin transparency. In addition, the composition can be provided as an excellent cosmetic effect to the level of recognizable improvement in skin transparency when used for more than 4 weeks.

Claims (8)

Skin transparency characterized by containing seaweed extract extracted from Salina species of the genus Dunaliella of the family Chlamydomonadales of Chlorophyceae Improvement cosmetic composition. The cosmetic composition for improving skin transparency of claim 1, wherein the composition promotes turn-over of epidermal cells or reduces skin angular mass. delete delete delete delete The cosmetic composition according to claim 1, wherein the seaweed extract is contained in an amount of 0.01 to 30.0 wt% based on the total weight of the composition. According to claim 1, wherein the cosmetic composition has a soft cosmetic, nourishing cosmetics, massage cream, nutrition cream, pack, gel, essence, lipstick, makeup base, foundation, lotion, ointment, gel, cream, patch or spray formulation Cosmetic composition, characterized in that.

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