KR101502027B1 - Cosmetic composition containing Adansonia digitata fruit extract and hydrolyzed collagen for moisturizing and firming the skin - Google Patents

Abstract

The present invention relates to a cosmetic composition for improving skin moisturizing and elasticity, and more particularly, to a cosmetic composition containing baobabbu fruit extract and collagen peptide and exhibiting excellent effects on skin moisturization and elasticity improvement.

Baobab nuts extract * Collagen peptide * Moisture * Elasticity

Description

[0001] The present invention relates to a skin moisturizing and elasticity improving cosmetic composition containing a baobab nuts extract and a collagen peptide,

The present invention relates to a cosmetic composition for improving skin moisturizing and elasticity, and more particularly, to a cosmetic composition containing baobabbu fruit extract and collagen peptide and exhibiting excellent effects on skin moisturization and elasticity improvement.

Skin protects the human body from external physical and chemical stimuli, and is divided into three layers: epidermis, dermis, and subcutaneous fat tissue. In particular, skin contains about 65 ~ 70% of the human body's moisture, which transports various physiologically active substances necessary for the human body and helps the skin to maintain its moist condition. Skin also plays an important role in regulating the evaporation of this water in vitro. The epidermis is divided into the stratum corneum, the granular layer, the polar layer, and the basal layer from the outside. The horny layer of the epidermis contains about 10 to 20% of water and is present in the outermost part of the human body, thereby forming a natural protective film made of sebum and sweat glands from the sebaceous glands to prevent water evaporation from the outside of the body, Blocks material over-penetration. The cells that make up this stratum corneum have a high concentration of Natural Moisturizing Factor (NMF), which is a water-soluble ingredient, to help the skin to maintain flexibility and maintain proper moisture. However, there are various causes such as an artificial temperature control of cold / heating due to changes in environment or life pattern, skin stress due to various stresses and environmental pollution, frequent washing according to make-up habit, The moisture of the stratum corneum is decreased, the skin becomes dry, the surface becomes rough, and the skin appears to be dull and dull. Therefore, the need for a skin moisturizer is increasing.

Conventionally, a humectant or an occlusive moisturizer to prevent water evaporation has been used as a moisturizing agent. Most of huhmattehn is a polyol such as glycerin, propylene glycol, 1,3-butylene glycol, and polyethylene glycol. However, they have a disadvantage in that the polyol tends to stick to the skin when applied to the skin, or it may feel numb. Lipid components such as ceramides and essential fatty acids and lipid complexes have been used as closed moisturizers (J. Invest. Dermatol. (5), 731-740, 1994), but the structure of the emulsified interfacial membrane is disturbed in the emulsified formulations, And there are disadvantages in manufacturing transparent gel-like products. In addition, the formulations containing the lamellar liquid crystals, which have been under much research until recently, are known to have excellent moisture retention due to their similar merits to the keratinous structures of the skin, but they can be used only in a specific composition of the raw materials.

As the skin grows older as the other organs of the human body, the aging progresses gradually, resulting in skin elasticity loss, keratinization, wrinkle formation and skin atrophy. Such skin aging not only causes wrinkles on the surface of the skin but also causes a change in the entire line of the face. Much research has been carried out on the importance and role of collagen directly affecting such wrinkles and skin elasticity. When most of the skin, most of the skin, 77% of the skin, 90% of the dermis is rich in quantity and quality of collagen is healthy, the skin can be kept moist and healthy and beautiful without wrinkles and sagging. Research on such collagen has gained popularity in the areas of skin moisture and elasticity-improving efficacy by meeting the customer's demand for skin aging.

Accordingly, the present inventors searched for a substance that contains a large amount of water in the horny layer of the skin and decreased the evaporation of water in the cosmetic composition and at the same time, improved the elasticity of the skin. As a result, the baobab fruit extract and the collagen peptide had excellent water retention It has been found that it contains a lot of moisture, reduces the evaporation of water, replenishes the skin, improves the wrinkles and makes the skin taut.

Accordingly, it is an object of the present invention to provide a cosmetic composition which contains a baobab fruit extract and a collagen peptide to improve skin moisturizing and elasticity.

In order to achieve the above object, the present invention provides a cosmetic composition comprising an extract of baobab fruit and a collagen peptide as an active ingredient.

The cosmetic composition provided by the present invention is excellent in skin moisturizing ability and elasticity improving effect and can be used as a skin moisturizing and elasticity enhancing cosmetic composition.

In order to achieve the above object, the cosmetic composition according to the present invention is characterized by containing Baobab or a non-fruit extract and a collagen peptide as an active ingredient.

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

The baobab tree is a deciduous tree with spring boxes and is native to Africa and Australia, and has long been known as a sacred tree. The baobab tree can store more than 120,000 liters of water, which is known to withstand extreme drought. The baobab nuts are very nutritious and contain 6 times more vitamin C than orange and contain twice as much milk as milk. It is also rich in vitamins A and B, phosphorus and iron.

Collagen is one of the most important biological materials as a protein material that constitutes a living organism. Collagen is one of the most abundant fibrous proteins in the body of an animal. 100 amino acids are gathered to make a long and narrow band of 300nm in length and 1.5nm in thickness. This collagen molecule is a collagen-type structure in which two polypeptide chains are wound and hydrogen bonded to each other. In addition, collagen is the main component of the skin's dermis and connective tissue, and 90% of the proteins that make up the bone are collagen.

The cosmetic composition according to the present invention may contain the baobabbuts extract in an amount of 0.001 to 20 wt% based on the total weight of the composition. If the content of the baobab fruit extract is less than 0.001% by weight, the skin elasticity and wrinkle-improving effect by the extract can not be obtained. If the content is more than 20% by weight, the increase in the content of the baobab fruit extract is inefficient.

The baobabu fruit extract used in the present invention can be extracted by a conventional method in the art, and the method is not particularly limited. Specific examples thereof may be prepared by mixing Baobab nuts with water, C ₁ to C ₄ lower alcohols, polyhydric alcohols or a mixed solvent thereof, followed by extraction and filtration.

The cosmetic composition according to the present invention may contain the collagen peptide in an amount of 0.00001 to 10% by weight based on the total weight of the cosmetic composition. If the content of the collagen peptide is less than 0.00001% by weight, the skin elasticity effect due to the above components can not be obtained. If the content of the collagen peptide exceeds 10% by weight, the effect of the collagen peptide is not increased.

The cosmetic composition according to the present invention may be formulated containing a cosmetically or dermatologically acceptable medium or base. It may be any formulation suitable for the skin, for example, as a solution, a gel, a solid, a paste anhydrous product, an emulsion obtained by dispersing an oil phase in water, a suspension, a microemulsion, a microcapsule, a microgranule, May be provided in the form of an ionic follicle dispersing agent or in the form of a skin, lotion, cream, pack, gel, makeup base, foundation, powder, ointment, spray or conceal stick. These compositions may be prepared according to conventional methods in the art. The composition according to the invention may also be used in the form of a foam or in the form of an aerosol composition further containing a compressed propellant.

The cosmetic composition according to the present invention can be used as a cosmetic composition in the form of a cosmetic composition containing a lipid, an organic solvent, a solubilizer, a thickening agent, a gelling agent, a softening agent, an antioxidant, a suspending agent, a stabilizer, a foaming agent, a fragrance, Such as fillers, emulsifiers, emulsifiers, fillers, sequestering agents, chelating agents, preservatives, vitamins, blockers, moisturizers, essential oils, dyes, pigments, hydrophilic or lipophilic active agents, lipid vesicles or any other ingredient commonly used in cosmetics May contain adjuvants commonly used in the field of cosmetics or dermatology. Such adjuvants are introduced in amounts commonly used in the cosmetics or dermatological fields.

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

[Reference Example] Preparation of Example 1 and Comparative Examples 1 to 3

Example 1, which is a composition containing a baobab fruit extract (trade name: Baobab Fruit Water, manufactured by MoaCam) and collagen peptide (trade name: Skin barrier base, Shuete), and a baobab fruit extract Or Comparative Examples 1 and 2, which are compositions containing collagen peptide, and Comparative Example 3, which is a composition not containing both the baobab fruit extract and the collagen peptide, were prepared. Example 1 and Comparative Examples 1 to 3 were all made into O / W formulations, and the content of the ingredients shown in the following Table 1 is% by weight.

In the meantime, the baobab fruit extract used in the present invention was prepared by adding 100 g dry weight of baobab fruit to each flask, extracting by cooling with 2 L of butylene glycol for 3 days, and then filtering to remove the residue.

division Raw material name Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Paid part Polysorbate 60 1.0 1.0 1.0 1.0 Glyceryl stearate 0.5 0.5 0.5 0.5 FAGE -100 stearate 1.0 1.0 1.0 1.0 Meadow Foam Seed Oil 3.0 3.0 3.0 3.0 Cyclomethicone 2.0 2.0 2.0 2.0 Dimethicone 3.0 3.0 3.0 3.0 Behenyl alcohol 1.0 1.0 1.0 1.0 Cetearyl alcohol 1.0 1.0 1.0 1.0 Cetyl ethylhexanoate 10.0 10.0 10.0 10.0 antiseptic Suitable amount Suitable amount Suitable amount Suitable amount Spices Suitable amount Suitable amount Suitable amount Suitable amount Award Part Purified water To 100 To 100 To 100 To 100 Disodium edetate 0.05 0.05 0.05 0.05 glycerin 10.0 10.0 10.0 10 Other thickening agents, neutralizing agents Suitable amount Suitable amount Suitable amount Suitable amount Baobab nut extract 3.0 3.0 - - Collagen peptide 0.1 - 0.1 -

<Manufacturing Method>

According to the contents shown in Table 1, the oil phase parts were heated and dissolved in a separate container at 70 DEG C and dispersed using a homogenizer. The water-based part was dissolved by heating at 70 DEG C, and then the oil-based part was slowly added to the water-based part and emulsified at 70 DEG C. Finally, the composition was filled into an airtight container and cooled to room temperature using a cooler.

[Test Example 1] Human body test for skin moisturization

1. Moisture effect experiment

The cosmetic composition of Example 1 and Comparative Examples 1 to 3 was applied twice daily for 4 weeks to 40 adult male and female adults who were alleged to be dry or dry skin for 4 weeks. TEWL (Transepidermal Water Loss) was measured by the following method at constant temperature and humidity condition (24 ° C, 40% relative humidity) at the point of 2 weeks and 4 weeks after application and before application, Respectively. The results are shown in Fig.

<TEWL measurement method>

The amount of water evaporating from the skin is calculated according to the area and time, and the amount of water evaporating is read by the temperature and humidity electronic sensor, and the moisture of the skin is measured.

1. Environmental conditions: The temperature and humidity are kept constant, leaving only a small number of people besides the measurer and the subject (preferably blocking air flow).

2. Place the TEWL probe on the subject's measurement site.

3. Place the probe lightly on the measurement site (not to leave marks on the skin) and make an angle of 90 degrees with the ground.

4. Measure the value at which the TEWL value of the skin becomes constant over time (usually 1-3 minutes).

5. Carefully hold the handle of the probe as far as possible so that the body temperature of the measurer is not transmitted.

6. Calculate the amount of water (g / m ² / h) that evaporates per hour per area.

As shown in the results of Fig. 1, the TEWL change value (moisture evaporation amount) was small as compared with Comparative Example 3 in Example 1 and Comparative Examples 1 and 2 containing a baabab fruit extract or collagen peptide It can be seen that the In particular, in Example 1 containing the baobab fruit extract and the collagen peptide at the same time, the skin moisturizing effect was about 200% as compared with the comparative example, and thus it can be confirmed that the moisturizing effect is very excellent.

In addition, in order to examine the moisturizing durability at the time of one application, Example 1 was applied and skin moisture was measured with a corneometer for 6 hours. The results are shown in FIG.

<Measurement method of moisture meter>

The amount of water present in the epidermis of the skin is measured by measuring the degree of ion of moisture using a sensor, numerically calculating the amount of moisture, and then measuring the moisture content.

1. Place a probe of the corneometer on the skin area to be measured.

2. When the probe is pressed onto the skin, the electrical conductivity of the skin is quantified through the sensor and displayed on the screen.

3. Repeat the measurement with different measurement sites.

4. After measuring, wipe sensor with tissue paper such as kim wipe, and measure.

FIG. 2 shows that when the formulation of Example 1 containing the baobabu fruit extract and the collagen peptide was applied at the same time, the skin moisture content was remarkably higher than that of the untreated group, indicating that the moisturizing effect was excellent.

On the other hand, at the end of the test, subjects were asked to fill out questionnaires and perform subjective evaluation of efficacy at the same time as the device evaluation. The results are shown in Table 2 below.

Skin dryness improvement effect survey Application group Number of Respondents Very good Good usually Inadequate Example 1 18 18 4 0 Comparative Example 1 15 14 9 2 Comparative Example 2 5 10 17 8 Comparative Example 3 One 3 16 20

From the results of Table 2, it can be seen that the satisfaction of the person who applied the Example 1 containing the baobab fruit extract and the collagen peptide at the same time is remarkably high.

[Test Example 2] Human skin test for skin elasticity

In order to compare the skin elasticity restorative effect of the emulsifier type prepared in the above reference example, 280 women in their 30s and 40s were divided into 14 groups of 20 persons as one group. The experimental method is as follows.

Each sample was applied to Example 1 and Comparative Examples 1 to 3 twice a day for one month, and after one month, a cutometer (SEM474, Courage + Khazaka electronic GmbH, Germany) The elasticity of the facial region was measured and compared with that before application. The results are shown in Table 3 below. The results in Table 3 indicate the viscoelasticity of the skin elasticity measuring device, and the values in Table 3 are the average values of the respective groups.

Clinical results after 1 month of use Skin elasticity improvement (%) Example 1 85 Comparative Example 1 58 Comparative Example 2 67 Comparative Example 3 43

As can be seen from the results of Table 3, it can be seen that the skin elasticity improvement ratio of Example 1 and Comparative Examples 1 and 2 containing the baobab fruit extract or collagen peptide was higher than Comparative Example 3. In particular, in Example 1, which contained the baobab fruit extract and the collagen peptide at the same time, the skin elasticity was improved by about 200% as compared with Comparative Example 3, and the skin elasticity was improved remarkably.

Fig. 1 shows TEWL measurement results measured at two weeks and four weeks before application of Example 1 and Comparative Examples 1 and 3.

FIG. 2 shows the results of measurement of skin moisture content for 6 hours after application of Example 1 in order to examine the moisturizing sustainability of Example 1 and the untreated group.

Claims (4)

A cosmetic composition comprising a baobab fruit extract and a collagen peptide as an active ingredient, Wherein the Baobab nuts extract is prepared by cold-pressing. The cosmetic composition according to claim 1, wherein the baobabu fruit extract is contained in an amount of 0.001 to 20 wt% and the collagen peptide is contained in an amount of 0.00001 to 10 wt% based on the total weight of the composition. The cosmetic composition according to claim 1, wherein the composition is for improving skin moisture. The cosmetic composition according to claim 1, wherein the composition is for improving skin elasticity.

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