KR101288498B1 - Cosmetic compositions for excellent cumulative skin moisturizing effect - Google Patents

Abstract

The present invention relates to a skin moisturizing cosmetic composition comprising at least one selected from the group consisting of a strip extract having a skin moisturizing effect when applied to the skin in a short period of time, and coupa butter, murumuru butter, and brazil nut oil. The composition relates to a cosmetic composition having excellent skin moisturizing effect, which improves dry skin due to excellent moisture retention effect of the skin by blocking moisture loss to the outside.

Moisturizing, Cosmetic

Description

 Cosmetic composition excellent in moisturizing effect {COSMETIC COMPOSITIONS FOR EXCELLENT CUMULATIVE SKIN MOISTURIZING EFFECT}

The present invention prevents moisture loss to the outside when cumulatively applied to the skin in a short period of time to increase the skin moisture retention capacity and lower the evaporation amount of the moisture to improve the dry skin strip extract and coupa butter, rumuru butter and brazil nuts It relates to a skin moisturizing cosmetic composition containing at least one selected from the group consisting of oils.

The skin is divided into three layers of epidermis, dermis and subcutaneous fat tissue in order from the outside, and protects the body from physical and chemical stimuli from the external environment. Controls the evaporation of moisture out of the body. In particular, the stratum corneum of the epidermis contains 10-20% of moisture and is present at the outermost part of the human body to suppress evaporation of moisture from the body and to prevent excess moisture from penetrating. It is known to keep the moisture loss to an appropriate level, sebum components and epidermal lipids, which are the lipid membrane components of the keratinocyte layer. The stratum corneum layer contains a hydrophilic, water-retaining substance called Natural Moisturizing Factor (NMF), which helps the skin to maintain flexibility and maintain proper moisture. However, when the moisture content of the stratum corneum is less than 10%, the skin becomes rough and the body loses its protective function, causing aging. For example, in the case of dry skin, the aggregation of keratinocytes is weakened and scaling phenomenon occurs in which the keratinocytes are peeled off from the surface of the skin like scales. The dry skin is because the moisture content of the keratinocyte layer is less than the normal skin. However, due to changes in the environment or life patterns, various stresses and environmental pollution from social life, frequent face washes due to makeup habits, and natural skin aging due to age increase, the moisture in the stratum corneum decreases, resulting in skin dryness and surface This roughness, the skin loses its shine and dull appearance occurs, the problem of skin moisturizing is becoming more and more important.

Therefore, it is very important to properly maintain the moisture content of the stratum corneum of the skin. To this end, conventionally, a humectant or NMF component having a property of absorbing moisture as a moisturizing agent or a natural water-soluble component containing these components binds to or surrounds moisture, thereby serving to retain moisture in the skin. Examples of the humectants include polyols such as glycerin, sorbitol, propylene glycol, dipropylene glycol, and 1,3-butylene glycol. They exhibit excellent moisturizing properties when applied to the skin, but can be very sticky or unpleasant due to the inherent viscosity and physical properties of polyols. In addition, NMF components such as sodium pyrrolidone carboxylate (PCA-Na), sodium lactate (urea), urea or natural water-soluble components containing these components have a high electrolytic property, which impairs the emulsion stability of the cosmetic. , Hyaluronic acid, betaine, collagen, etc. are also moisturizing, but their moisturizing ability is limited.

Another method is to increase the water retention in the stratum corneum by using an occlusive moisturizer that prevents evaporation of water. As a closed moisturizer, a lipid component such as oil or wax is used. By forming an oil film on the skin to suppress evaporation of moisture, the moisturizing effect is maintained, but in terms of feeling, the absorption is slowed, and negative effects such as stickiness and shine are likely to occur at the same time.

The above-mentioned moisturizing ingredients for artificially controlling the temperature according to changes in the environment or changing living patterns, various stresses occurring in social life, and frequent skin cleansing due to makeup habits have good ability to contain water. Nevertheless, due to the limitation of usage and the dropping of moisturizing ingredients due to excessive cleaning, the sustainability of the moisturizing feeling is significantly decreased over time.

In view of the above, the inventors of the present invention provide a cosmetic composition for moisturizing skin, which is effective for improving dry skin, which contains an excellent natural raw material for which the average consumer has an immediate moisture supply effect and moisture retention ability even after a daily shower.

Accordingly, an object of the present invention is to increase the skin moisturizing effect in a short period of time when cumulative application to the skin, a water-soluble moisturizing material strip selected from the group consisting of water-soluble moisturizing material Kufasu butter, murumuru butter and brazil nut oil 1 It is to provide a cosmetic composition containing more than one species.

In order to achieve the above object, the skin moisturizing cosmetic composition according to the present invention is characterized in that it contains at least one selected from the group consisting of a) strip extract and b) coupa butter, murumuru butter and brazil nut oil. . The content ratio of the at least one composition selected from the group consisting of a) a strip extract and b) cuppa butter, murumuru butter, and brazil nut oil is preferably 1: 0.3 to 1: 1.

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

Kupasu butter, murumuru butter and brazil nut oil used in the present invention are triglyceride components obtained by compressing and purifying the fruits of Kupasu, murumuru, and brazil nuts, which grow in colonies in the Brazilian Amazon River basin. And solid state properties. Kupasu butter, murumuru butter and brazil nut oil can be extracted directly from the fruit of the plant or purchased commercially available.

Kupasu Butter contains phytosterols such as beta-sitosterol, stigmasterol, and campestrol, and is used to treat ulcers as a folk remedy. It acts as a free radical scavenger, soothes, and provides moisture and elasticity to the skin. Murumuru butter rich in oleic acid and linoleic acid has good soothing effect and bactericidal effect, and forms skin barrier, so it has excellent moisture supply effect. Rich in oleic acid, linoleic acid, and phytosterol, brazil nut oil is highly moisturizing and antioxidant. In addition, the band extract (Imperata cylindrica) is a perennial perennial grass native to Asia, rich in potassium and 3-dimethylsulfopropionate, which act as an osmotic pressure regulating agent, to moisturize the skin. If it is insufficient, the skin is moisturized by osmotic pressure difference.

The strip extract used in the present invention is a water-soluble moisturizing ingredient that supplies insufficient moisture to dry skin, and kupasu butter, murumuru butter, and brazil nut oil form a skin moisturizing film to maintain a long-term moisturizing effect.

In the moisturizing cosmetic composition of the present invention, the active ingredient is contained in an amount of 0.001 to 50 parts by weight based on the total weight of the composition. When the amount is less than 0.001 part by weight, the effect is insignificant, and in consideration of skin stability and formulation stability, the upper limit is preferably 50 parts by weight.

The cosmetic composition according to the present invention can be used in cosmetics for moisturizing the skin, and the formulation is not particularly limited. For example, it may be a formulation of a lotion, cream, emulsion, pack, gel or skin adhesive type cosmetic, or transdermal dosage form.

As described above, the moisture retention increase rate when cumulatively applied to the skin with a skin moisturizing cosmetic composition, characterized in that it further comprises at least one selected from the group consisting of a strip extract and coupa butter, murumuru butter and brazil nut oil. Increasingly, the rate of blocking moisture loss to the outside is significantly higher, which is excellent in moisturizing effect on skin and improving dry skin.

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 limited to these examples.

[ Example  1 to 10, and Comparative example  1-4]

In order to determine the moisturizing effect of the strip extract and coupa butter, murumuru butter and brazil nut oil, the cosmetic compositions of Examples 1 to 7 and Comparative Examples 1 to 4 were prepared. Kupasu butter used in this example was Beraca (Brazil), Murumu butter was Beraca (Brazil), Brazil nut oil was Beraca (Brazil), and the band extract commercially available from Sederma (France).

Table 1 Preparation of Emulsion Composition

As a method of producing an emulsion composition according to the present embodiment, (1) the oily ingredients were heated to 75 degrees and mixed uniformly. (2) The aqueous phase component was heated to 75 degrees to dissolve and mix uniformly. (3) The emulsion composition was prepared by adding (1) to (2) at 75 degrees and emulsifying to prepare an emulsion, degassing and cooling to prepare an emulsion composition at 30 degrees.

Test Example  1: moisture Possession  Evaluation experiment

In order to evaluate the moisturizing power of the emulsion compositions of Examples 1 to 7 and Comparative Examples 1 to 4, a method of evaluating moisture retention after applying a quantitative amount to the skin was used.

The equipment used at this time is a skin moisture content measuring device Skicon 200 (IBS, high frequency: 3.5MHz) which measures the electrical conductivity of the skin and measures the moisture content of the skin (corresponding to the stratum corneum layer) of shallow thickness.

The test method was applied in a constant temperature and humidity room of 22 degrees and a relative humidity of 50%, each of the compositions of Examples and Comparative Examples 1 to 10 was applied to the inside of the arms of 15 test subjects, and then rubbed well (0 mg / cm2), followed by 0 hour Short term effects were evaluated by measuring the rate of moisture increase (%) after 1 hour and 3 hours based on the moisture retention capacity. In addition, the moisturizing effect was measured for 3 days to evaluate the cumulative applied water retention capacity. After applying the emulsion twice a day as a way of life, taking a shower, measuring the rate of water growth the next day, and then again applying the emulsion was carried out for three days. The results obtained at this time are as shown in Table 2 below.

[Table 2]

(Moisture holding unit:%)

As shown in Table 2, Comparative Examples 5 to 7 containing one or more Kupasu butter, murumuru butter, brazil nut oil and strip extract using a conventional moisturizing material such as mineral oil, glycerin, hyaluronic acid Compared with 1 to 4, the increase in moisture retention was higher after 1 and 3 hours of application.

In addition, it was confirmed that when the cumulative coating on the skin for 3 days, Examples 5 to 7 showed a larger increase in moisture retention rate over time than Comparative Examples 1 to 4, which indicates that the moisturizing effect of the skin is greater. To indicate.

Test Example  2: moisture evaporation evaluation experiment

Evaluation of the water evaporation amount of the emulsion prepared according to Examples 1 to 7 and Comparative Examples 1 to 4 was performed.

The test method is to apply a certain amount (2mg / cm ² ) to the inside of the 15 subjects' arms in a constant temperature and humidity room with a relative humidity of 50% at 22 degrees and rub it well. The water vaporization amount was measured. Then, the amount of evaporation of water over 3 days was measured to find out the cumulative effect while using the emulsion. As a way of life, the emulsion was applied twice a day, and after taking a shower, it was carried out for three days by measuring the evaporation amount of water for 10 minutes before and after applying the emulsion the next day.

The results obtained at this time are as shown in Table 3 below. In addition, at the end of the test separately, the test subjects were asked to fill out a questionnaire and subjected to mechanical evaluation and subjective efficacy evaluation, and the results are shown in Table 3 below.

[Table 3]

(Moisture evaporation unit:%)

[Table 4] Survey on skin dryness improvement effect

Comparative Examples 1 to 4 using the conventional moisturizing materials such as mineral oil, glycerin, hyaluronic acid, and Examples 5 to 7 containing at least one of the strip extract and cuppa butter, murumuru butter and brazil nut oil through Table 3 above. The water evaporation amount was much lower than that of, and when the cumulative coating was applied to the skin for 3 days, the water evaporation amount was measured. Examples 5 to 7 showed less water evaporation amount than Comparative Examples 1 to 4. As a result, it can be seen that the skin moisturizing cosmetic composition containing one or more from the group consisting of the strip extract of the present invention and cuppa butter, murumuru butter and brazil nut oil has an excellent effect of inhibiting moisture evaporation of the skin. . In addition, looking at the results of Table 4, it can be seen that the results of the investigation that people who applied Examples 5 to 7 felt that there was a relatively more moisturizing effect than those who applied Comparative Examples 1 to 4.

As a result, the skin moisturizing cosmetic composition of the present invention is characterized in that it further contains at least one selected from the group consisting of a strip extract and coupa butter, murumuru butter and brazil nut oil, and has high moisture retention when applied to the skin. It has excellent skin moisturizing effect due to its high ability to inhibit water evaporation.

Claims (5)

a) strip extract; And b) one or more selected from the group consisting of coupa butter, murumuru butter, and brazil nut oil. Cosmetic composition for skin moisturizing containing as an active ingredient. According to claim 1, wherein the content ratio of the at least one composition selected from the group consisting of a) strip extract and b) cuppa butter, rumuru butter, and brazil nut oil is characterized in that 1: 0.3 to 1: 1. Cosmetic composition. The cosmetic composition for moisturizing skin according to claim 1 or 2, wherein the active ingredient comprises 0.001 to 50.0 parts by weight based on the total weight of the total composition. The cosmetic composition of claim 1, wherein the cosmetic composition is in the form of a toner, lotion, essence, cream, gel, pack, soap, or shampoo. The oil phase component of claim 1, wherein the oil phase component comprises at least one selected from the group consisting of coupa butter, murumuru butter, and brazil nut oil. A skin moisturizing cosmetic composition prepared by emulsifying an aqueous phase component including a strip extract, purified water, and glycerin.