KR20110012700A - Cosmetic composition containing adansonia digitata fruit extract and hydrolyzed collagen for moisturizing and firming the skin - Google Patents

Abstract

PURPOSE: A cosmetic composition containing Adansonia digitata extract and collagen peptide is provided to improve skin moisturizing and elasticity. CONSTITUTION: A cosmetic composition contains 0.001-20 weight% of Adansonia digitata fruit extract and 0.00001-10 weight% of collagen peptide. The Adansonia digitata fruit extract is isolated using water, low alcohol of C1-C4, polyvalent alcohol or mixture solvent thereof. The cosmetic composition is formulated containing coemstically or dermatologically acceptable medium or base.

Description

Cosmetic composition containing Adansonia digitata fruit extract and hydrolyzed collagen for moisturizing and firming the skin}

The present invention relates to a cosmetic composition for improving skin moisturizing and elasticity, and more particularly, to a cosmetic composition containing baobab fruit extract and collagen peptide, which shows an excellent effect on skin moisturizing 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, the skin contains about 65-70% of the moisture that the human body has, which carries various bioactive substances necessary for the human body and helps keep the skin moist. The skin also plays an important role in controlling the evaporation of this moisture out of the body. The epidermis is divided into stratum corneum, granule layer, play layer and basal layer from the outside. The stratum corneum of the epidermis contains about 10 to 20% of water and is located at the outermost part of the human body, forming a natural protective film made of sebum from the sebaceous glands and sweat from the glands, preventing evaporation of moisture from outside the body. Blocks material infiltration. The cells constituting the stratum corneum have a high concentration of natural moisturizing factor (NMF), which is a water-soluble ingredient, which helps the skin to show flexibility and maintain proper moisture. However, there are various causes such as artificial temperature control of cooling / heating according to the change of environment or life pattern, skin stress due to various stresses and environmental pollution, frequent face wash due to makeup habits, and natural skin aging due to age increase. Due to the decrease in moisture in the stratum corneum, the skin is dried, the surface is rough, and the skin loses shine, and the appearance of dull appearance occurs, so the need for a skin moisturizer is increasing.

Conventionally, a humectant (humectant) having a property of absorbing moisture or a closed moisturizer (Occlusive Moisturizer) that prevents evaporation of water is used as a moisturizer. Most of the humectants are polyols and include glycerin, propylene glycol, 1,3-butylene glycol, and polyethylene glycol. However, they have a disadvantage in that the polyol is very sticky or damp when applied to the skin. As a closed moisturizer, lipid components such as ceramide, essential fatty acids and lipid complexes were used (J. Invest. Dermatol. (5), 731-740, 1994). It has the disadvantage of inhibiting and is unsuitable for producing a transparent gel-like product. In addition, formulations containing lamellar liquid crystals, which have been studied until recently, are known to have excellent moisture moisturizing properties due to similar advantages to the keratin structure of the skin.

In addition, the skin, like other organs of the human body, gradually ages as the body ages. As a result, skin elasticity loss, keratinization, wrinkle formation, and skin atrophy occur. This skin aging phenomenon not only causes wrinkles on the surface of the skin but also changes the overall lines of the face. Many studies have been conducted on the importance and role of collagen directly affecting wrinkles and skin elasticity. When collagen, which accounts for most of the skin, 77% of the skin, and 90% of the dermis, is quantitatively rich and qualitatively healthy, the skin can also be kept moist and healthy and beautiful without wrinkles and sagging. The research on collagen has been popular in the area of improving skin moisture and elasticity by satisfying the customer's demand for skin aging.

Therefore, the inventors of the present invention to find a substance that contains a large amount of moisture in the skin stratum corneum and to reduce the evaporation of moisture and at the same time to find a substance that improves skin elasticity, Baobab fruit extract and collagen peptide has excellent water retention It has been found to contain large amounts of water, reduce evaporation of moisture and fill the skin to improve wrinkles and make the skin taut.

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

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

The cosmetic composition provided by the present invention may be used as a skin moisturizing and elasticity enhancing cosmetic composition due to the excellent skin moisturizing power and elasticity improving effect.

In order to achieve the above object, the cosmetic composition according to the present invention is characterized by containing the baobab tree fruit extract and collagen peptide as an active ingredient.

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

Baobab trees are deciduous trees with spring boxes, native to Africa and Australia, and have been known as sacred trees since ancient times. Baobab trees can store more than 120,000 liters of water, which is known to withstand extreme droughts. Baobab fruit is also very nutritious, and the flesh contains six times more vitamin C than oranges and twice as much calcium as milk. It is also rich in vitamins A and B, phosphorus and iron.

Collagen is one of the most important biomaterials as a protein material constituting organisms. Collagen is also the most fibrous protein in the animal's body, where 100 amino acids come together to form a narrow strip of 300 nm in length and 1.5 nm in thickness, with three bands twisted together to form collagen molecules. This collagen molecule is a collagen structure in which two polypeptide chains are wound and bonded to each other by hydrogen bonds. Collagen is also a major component of the dermis and connective tissue of the skin, as well as 90% of the proteins that make up bone are collagen.

The cosmetic composition according to the present invention may contain the baobab fruit extract in an amount of 0.001 to 20% by weight based on the total weight of the composition. If the content of the baobab tree extract is less than 0.001% by weight, the skin elasticity improvement and wrinkle improvement effect by the extract may not be largely obtained, and if the content is more than 20% by weight, the increase in effect is not large, so it is rather inefficient.

Baobab fruit extract used in the present invention can be extracted by a method conventional in the art, the method is not particularly limited. For example, the baobab fruit may be mixed with water, lower alcohols of C ₁ to C ₄ , 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. If the content of the collagen peptide is less than 0.00001% by weight, the skin elasticity effect by the component is not largely obtained, and when the content of the collagen peptide exceeds 10% by weight, the increase in effect is not large compared to the increase in content, which is rather inefficient.

Cosmetic compositions according to the invention may be formulated containing a cosmetically or dermatologically acceptable medium or base. These are all formulations suitable for skin, for example emulsions, suspensions, microemulsions, microcapsules, microgranules or ionic (liposomes) and non-obtained by dispersing an oil phase in solutions, gels, solids, pasty anhydrous products, aqueous phases. It may be provided in the form of an ionic vesicle dispersant or in the form of a skin, lotion, cream, pack, gel, makeup base, foundation, powder, ointment, spray or concealed stick. These compositions may be prepared according to conventional methods in the art. The composition according to the invention can 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 is a fatty substance, an organic solvent, a dissolving agent, a thickening agent, a gelling agent, a softener, an antioxidant, a suspending agent, a stabilizer, a foaming agent, a fragrance, a surfactant, water, an ionic or nonionic. Such as type emulsifiers, fillers, metal ion sequestrants, chelating agents, preservatives, vitamins, blockers, wetting agents, essential oils, dyes, pigments, hydrophilic or lipophilic actives, lipid vesicles or any other ingredients commonly used in cosmetics. It may contain adjuvants conventionally used in the cosmetic or dermatology field. Such adjuvants are introduced in amounts generally used in the cosmetic or dermatological arts.

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 necessarily limited to these examples.

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

Baobab fruit extract (trade name: Baobab Fruit Water, manufacturer: Moacam, Inc.) and collagen peptide (trade name: Skin barrier base, manufacturer: Suet) in the composition of Table 1 and Baobab fruit extract Alternatively, Comparative Examples 1 and 2, which are compositions containing collagen peptides, and Comparative Example 3, which are compositions containing neither baobab tree extract and collagen peptides, were prepared. Example 1 and Comparative Examples 1 to 3 were all prepared in O / W formulation, the unit of the content shown in Table 1 is the weight percent.

On the other hand, Baobab tree fruit extract used in the present invention was prepared by putting 100g each dry weight of Baobab tree fruit in a flask, extracted by cooling for 3 days with 2L butylene glycol (butylene glycol) and then filtered 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 Fiji-100 Stearate 1.0 1.0 1.0 1.0 Meadowfoam 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 7-ethylhexanoate 10.0 10.0 10.0 10.0 antiseptic Quantity Quantity Quantity Quantity Spices Quantity Quantity Quantity Quantity Water Part Purified water To 100 To 100 To 100 To 100 Disodium ID 0.05 0.05 0.05 0.05 glycerin 10.0 10.0 10.0 10 Other thickeners, neutralizers Quantity Quantity Quantity Quantity Baobab Fruit Extract 3.0 3.0 - - Collagen Peptides 0.1 - 0.1 -

<Production method>

The oil phase parts were dissolved by heating to 70 ° C. in a separate container as the contents shown in Table 1, and then dispersed using a homogenizer. The aqueous part was dissolved by heating at 70 ° C., and then the oil phase part was slowly added to the aqueous part to emulsify at 70 ° C. Finally, the composition was filled into an airtight container and cooled to room temperature using a cooler.

Test Example 1 Human Test on Skin Moisturizing

1. Moisturizing effect experiment

The cosmetic composition of Example 1 and Comparative Examples 1 to 3 was applied twice daily for 4 weeks to the inner side of Habak to 40 men and women who thought to be dry or dry skin. Moisturizing power was measured by measuring TEWL (Trans Epidermal Water Loss) at the temperature of constant temperature and constant humidity (24 ° C, 40% relative humidity) at the time of 2 weeks and 4 weeks after the start of application and at the time of application. Compared. The results are shown in FIG.

<TEWL measurement method>

The amount of water evaporated from the skin is calculated according to the area and time, and the amount of water evaporated is read and quantified by the temperature and moisture electronic sensors to measure the skin's moisturizing power.

1. Environmental conditions: The temperature and humidity are kept constant, leaving only a minimum of personnel (as far as possible).

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

3. Do not apply excessive force to the measuring area (not leaving any traces on the skin) and place the probe at an angle of 90 degrees to the ground.

4. Measure the value of the skin's TEWL level over time (usually 1-3 minutes).

5. Hold the probe handle as far as possible to avoid passing the temperature of the operator.

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

As shown in the results of Figure 1, Example 1 and Comparative Examples 1 to 2 containing the baobab tree fruit extract or collagen peptide is small TEWL change value (evaporation amount of water) over time compared to Comparative Example 3 It can be seen that there is a tendency to lose. In particular, in the case of Example 1 containing the baobab tree extract and collagen peptide at the same time it can be seen that the skin moisturizing effect about 200% compared to the comparative example shows a very good moisturizing effect.

In addition, in order to determine the moisturizing sustainability in one application, after applying Example 1, the skin moisture content was measured with a corneometer for 6 hours, and the results are shown in FIG. 2.

<Measuring Water Meter>

Moisture is measured by measuring the amount of moisture by measuring the amount of moisture in the skin's epidermis using a sensor and quantifying it.

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

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

3. Repeat the measurement with different measuring area.

4. After the measurement, wipe the sensor with a tissue such as Kimwipe and measure it.

Referring to Figure 2, when applying the formulation of Example 1 containing a baobab tree extract and collagen peptide at the same time it can be confirmed that the moisture content of the skin is significantly higher compared to the untreated group, the moisturizing effect is very excellent.

Meanwhile, at the end of the test, the test subjects were asked to fill out a questionnaire, and mechanical evaluation and subjective efficacy evaluation were also performed. The results are shown in Table 2 below.

Survey on Improvement of Dry Skin Applicator 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

Looking at the results of Table 2, it can be seen that the satisfaction of the moisturizing effect of the person who applied Example 1 simultaneously containing Baobab tree fruit extract and collagen peptide was significantly high.

Test Example 2 Human Test on Skin Elasticity

In order to compare the skin elasticity recovery effect when using the emulsifier formulation prepared in the reference example, 20 people were divided into 14 groups of 280 women in their 30s to 40s. The experimental method is as follows.

Example 1 and Comparative Examples 1 to 3 were applied to each group, and applied twice a day for 1 month, and then using a cutometer (SEM474, Courage + Khazaka electronic GmbH. Germany) that can measure skin elasticity after 1 month. The elasticity of the face area was measured and compared with before application. The results are shown in Table 3 below. The results in Table 3 refer to the properties of skin viscoelasticity of the skin elasticity measuring instrument, and the values in Table 3 are average values of each group.

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 shown in the results of Table 3, in the case of Example 1 and Comparative Examples 1 to 2 containing the baobab fruit extract or collagen peptide it can be seen that the improvement in skin elasticity compared to Comparative Example 3. In particular, in the case of Example 1 containing the baobab fruit extract and collagen peptide at the same time shows a skin elasticity improvement of about 200% compared to Comparative Example 3 it can be confirmed that the skin elasticity improvement is very excellent.

FIG. 1 shows the results of TEWL measurement measured at 2 and 4 weeks after application of Example 1 and Comparative Examples 1 to 3. FIG.

Figure 2 shows the results of measuring the amount of skin moisture for 6 hours after applying Example 1 in order to determine the moisturizing persistence during the first application of Example 1 and the untreated group.

Claims (4)

Cosmetic composition containing baobab fruit extract and collagen peptide as an active ingredient. The cosmetic composition according to claim 1, wherein the baobab fruit extract is contained in an amount of 0.001 to 20% by weight and collagen peptide in an amount of 0.00001 to 10% by weight based on the total weight of the composition. According to claim 1, wherein the composition is a cosmetic composition, characterized in that for improving skin moisturizing power. According to claim 1, wherein the composition is a cosmetic composition, characterized in that for improving skin elasticity.

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