KR20170019306A - Cosmetic composition for skin moisturizer - Google Patents

Abstract

The present invention relates to a cosmetic composition for skin moisturizing having improved moisturizing power and moisturizing duration. The composition, with respect to the total weight of the composition, comprises: 90 to 98 wt% of an Opuntia ficus-indica stem extract; 0.3 to 0.7 wt% of a basil flower, leaf and stem extract; and 0.3 to 0.7 wt% of an oat kernel extract, thereby being able to give continuous moisturizing when applied to skin.

Description

COSMETIC COMPOSITION FOR SKIN MOISTURIZER [0002]

Disclosed herein is a cosmetic composition for skin moisturizing which has improved moisturizing power and moisturizing duration.

Human skin is the primary shield that protects the human body from various stimuli derived from the external environment. In addition, it is also a barrier to prevent the body's moisture, which is absolutely necessary to maintain bioactivity, from escaping to the outside. The human body is inevitably exposed to a relatively dry environment compared to the skin, and thus the skin, especially the stratum corneum, has a variety of substances that store moisture and prevent evaporation, and thus play a very important role in maintaining moisture in the body. Two of the most important factors for the moisturizing function of the stratum corneum are the intercellular lamellar lipids acting as a film to prevent water evaporation and the other as decomposition products of filaggrin in keratinocytes The natural moisturizing factor is responsible for holding moisture in the stratum corneum.

In the case of various skin diseases or aged skin, the function of these two main factors deteriorates and the moisturizing condition of the skin deteriorates, so that dryness can easily occur. In this case, dryness can relieve pruritus or other dermatosis caused by dryness. It can be a means. In addition, the moisture in the stratum corneum helps to maintain the activity of enzymes having various physiological activities, and thus can maintain the skin barrier in a healthy state. Therefore, the moisturizing agent is required not only for skin having dryness but also for maintaining healthy skin Can play a role.

Polyhydric alcohols, water-soluble polymers, organic acid salts and the like are generally used as moisturizers contained in cosmetics. Occlusive ingredients that prevent oil from evaporating on the surface of the skin, which are oily with a moisturizing agent, A method of increasing moisture retention in the stratum corneum by using a humectant having a property is widely used. However, the conventional moisturizing agent exhibits a temporary effect, and when applied, can exhibit a moisturizing effect for a short time, but has a problem that the skin moisturizing effect can not be continuously maintained for a long time.

Korean Patent Publication No. 10-2004-0020092

In one aspect, the object of the present invention is to provide a cosmetic composition for skin moisturizing which has improved moisturizing power and moisturizing duration that can maintain skin moisturizing action for a long period of time without side effects.

In one aspect, the techniques disclosed herein are directed to a composition comprising 90-98% by weight of a Noblemelanoid extract, 0.3-0.7% by weight of a basil flower, a leaf and stem extract, and 0.3-0.7% by weight of an oat kernel extract, A cosmetic composition for moisturizing a skin having an improved duration is provided.

In one exemplary embodiment, the nopal is Opuntia It may be ficus - indica .

In an exemplary embodiment, the composition may further comprise 0.3 to 0.7% by weight of tooth root extract, based on the total weight of the composition.

In one aspect, the technique disclosed in this specification has an effect of providing a cosmetic composition for skin moisturization improved in moisturizing power and moisturizing duration that can maintain skin moisturizing action for a long period without side effects.

Hereinafter, the present invention will be described in detail.

In one aspect, the techniques disclosed herein are directed to a composition comprising 90 to 98% by weight of a Norfalaceae extract, 0.3 to 0.7% by weight of a basil flower, a leaf and stem extract, and 0.3 to 0.7% by weight of an oat kernel extract, And a skin moisturizing cosmetic composition having improved moisturizing duration. The composition contains a high amount of the Nobleman's stem extract, and exhibits an effect of increasing the moisture retention time and moisturizing duration by containing the flower, leaf, stem extract and oat kernel extract of basil together with the Nobleman's stem extract. In the improvement of the moisturizing power and the duration of moisturizing, preferably the flowers, leaves and stem extracts of the basil and the oat kernel extract are mixed at the above-mentioned blending ratios, so that they have a proper composition ratio with other ingredients and exhibit continuous moisturizing action without side effects, The effect is enhanced.

Opuntia ficus - indica ) is a perennial plant belonging to the cactus and cactaceae ( opuntia ), a plant that grows mainly in tropical and subtropical regions and is known as the origin of Mexico. In Mexico, prickly pear and nopalitos have been used for a variety of folk remedies for a long time, and currently there are reports on constipation treatment, diuretic effect, activation of intestinal motility, and prevention of hypertension by lowering cholesterol level .

In an exemplary embodiment, the knorl stem extract is present in an amount of from 92 to 98 wt%, or from 94 to 98 wt%, or from 95 to 97 wt%, or from 95 to 96 wt%, or from 96 to 97 wt% %, The skin moisturizing and moisturizing effect can be improved.

In one exemplary embodiment, the basil ( Ocimum basilicum ) flowers, leaves and stem extracts, oat kernels ( Avena sativa extract is contained in an amount of 0.3 to 0.5% by weight and 0.3 to 0.5% by weight, respectively, based on the total weight of the composition, thereby further improving the skin moisturizing effect of the knorl stem extract with good formulation stability and excellent moisturizing and moisturizing effect .

In this specification, basil flower, leaf and stem extracts are meant to include all of the extracts obtained by mixing the extracts obtained from each of the flowers, leaves and stems of the basil, and the flowers, leaves and stems of the basil. At this time, when the extracts obtained from each of the flowers, leaves and stems of the basil are mixed at a weight ratio of 0.5 to 3: 1: 0.2 to 0.5, it is possible to exhibit an optimum effect to enhance the skin moisturizing power and skin moisturizing time.

In one exemplary embodiment, the composition is a saliva Hispanica extract. The tooth root extract is contained in an amount of 0.3 to 0.7% by weight, preferably 0.3 to 0.5% by weight, based on the total weight of the composition, thereby further improving the skin moisturizing effect of the knorl stem extract, Effect can be shown.

In an exemplary embodiment, the composition may be a gel type moisturizing and moisturizing duration enhanced cosmetic composition. The composition comprises 0.07 to 0.14 wt.%, 0.2 to 0.4 wt.%, 0.2 to 0.35 wt.%, 0.01 to 0.015 wt.%, And 0.01 to 0.015 wt.% Of glycereth-26, carbomer, glycerin, butyleneglycol, To 0.15% by weight, the composition has the formulation stability of the gel type cosmetic composition, minimizes skin irritation, and further enhances skin moisturizing and moisturizing sustainability.

In the present specification, the extract can be used without limitation such as an extract, an extract, or a commercially available extract.

The above extract means not only a crude extract but also all kinds of processed products of the extract such as drying, concentration, fractionation, fermentation and the like, and the extraction process can be carried out according to a conventional method used in the related art .

In one illustrative embodiment, the extract can be used in a variety of applications, such as hot water extraction, immersion extraction, cold extraction, reflux cooling, supercritical extraction, subcritical extraction, high temperature extraction, high pressure extraction, ultrasonic extraction, microbial fermentation, And a method using an adsorbent resin including HP-20 can be produced according to a conventional extraction method in the art. Specifically, it may be warmed and refluxed or extracted at room temperature, but is not limited thereto. The extraction frequency may be 1 to 5 times, but it may be extracted three times in detail, but is not limited thereto. The extraction time can be from 2 to 12 hours, in particular from 3 to 10 hours, or from 3 to 5 hours, but is not limited thereto.

In one exemplary embodiment, the extract may be extracted with one or more solvents selected from the group consisting of water, organic solvents of 1 to 6 carbon atoms, subcritical fluids, and supercritical fluids.

The organic solvent having 1 to 6 carbon atoms is preferably an alcohol having 1 to 6 carbon atoms, acetone, ether, benzene, chloroform, ethyl acetate, methylene chloride chloride, hexane, cyclohexane, and petroleum ether. [0034] The term " a " The alcohol having 1 to 6 carbon atoms may be methanol, ethanol, propanol or butanol.

Supercritical fluid is a supercritical fluid in which the material is in a critical state where the two states of the liquid and the gas can not be distinguished from each other and when the vapor pressure is under a temperature and pressure higher than its critical point, Sub-supercritical fluid " means a fluid having a property substantially similar to a supercritical fluid, although it is not in a state above a supercritical point. The fluid may be either subcritical or supercritical fluid, which is any one of co-solvents including water, carbon dioxide, acetone, and water.

The cosmetic composition may further contain ingredients included in a functional additive and a general cosmetic composition. The functional additives may include water-soluble vitamins, oil-soluble vitamins, polymer peptides, polymeric polysaccharides, sphingolipids and seaweed extracts. Examples of the other ingredients that can be included in the composition include humectants, emollients, surfactants, organic and inorganic pigments, organic powders, ultraviolet absorbents, preservatives, bactericides, antioxidants, plant extracts, pH adjusters, alcohols, Accelerators, coolants, antiperspirants, purified water, and the like.

Hereinafter, the present invention will be described in more detail with reference to Examples. It is to be understood by those skilled in the art that these embodiments are merely illustrative of the present invention and that the scope of the present invention is not construed as being limited by these embodiments.

Example  One.

A sample of a cosmetic composition was prepared according to a conventional method according to the compounding ratio shown in Table 1 below.

Specifically, the raw material of the water phase was placed in the auxiliary emulsification tank, heated to 75 DEG C to dissolve it, and then transferred to the main emulsification tank. Then, the raw material of the oil phase was placed in the auxiliary emulsification tank, and the mixture was heated to 75 DEG C to dissolve it, and emulsified (HOMO 3000 rpm, PAD 30 rpm, 10 minutes) while being transferred to the main emulsification tank. After emulsification, the mixture was cooled and defoamed to 45 ° C., and plant extracts were added at 45 ° C. and mixed uniformly. The fragrance was added at 40 캜 under constant cooling, uniformly mixed, and cooled to 30 캜 to prepare a cosmetic composition sample.

Table 1. Formulation ratio (%, w / w)

Experimental Example  1. Evaluation of skin moisturizing and moisturizing sustainability efficacy

Twenty-one adult female subjects in their 20s to 50s who do not fall within the exclusion criteria, including those with sensitivity and irritable skin, who meet the criteria for selection, were selected to assign both forearms of the subject to the test site and the control site, A sample of the cosmetic composition prepared in Example 1 was applied at a dose of 2 mg / cm ² once to the forearm of the test site, and no action was taken on the forearm of the control region.

After application, conditions and environments that could affect the test results were blocked to assess the moisturizing sustainability of the composition according to the present specification. Specifically, during the initial 6 hours, the subjects stayed in the waiting room where the temperature and humidity conditions remained, and after 6 hours they returned home and prohibited all actions that could irritate the test site for 18 hours or affect the test results. Moisturizing endurance efficacy was measured by the coating former, the coating after 1 hour, 3 hours, 6 hours, and the moisture content of the horny layer using a water content meter ^{(corneometer ® CM-825, Courage} & Khazaka, Germany) for 24 hours. Moisture content was measured 5 times each, and the average value was determined for 3 measurements excluding the maximum value and the minimum value. The statistical significance of the test site and control site measurements was analyzed and verified using the Mann-Whitney nonparametric test of the SPSS program (version 19.0.0), and the improvement in moisture retention (%) was derived from the following equation.

Table 2. Measurement results by moisture meter -

Table 3. Measurement results by moisture meter - Test site

Table 4. Numerical variation and moisture improvement rate by moisture meter by time zone

As a result of obtaining valid data without dropping out of 21 subjects, the composition according to the present invention has a moisturizing effect lasting more than 24 hours at a statistically significant level (p < 0.05) as compared with a control site without sample application Respectively.

In other words, there was no difference in the water content in the stratum corneum at both sides of the skin before application, but the moisture content of the test site was significantly higher after 1 hour of application, and the moisturizing effect remained constant. Specifically, in the case of the improvement rate of moisture resistance, the maximum value was 89.69% after one hour of application, and the improvement of moisture resistance was 40.67% even after 24 hours of application, and it was confirmed that the stability was maintained without abrupt decrease even after 24 hours.

Experimental Example  2. Evaluation of side effects

During the course of Experimental Example 1, adverse effects related to the use of the samples were classified as mild, moderate, and severe, with or without erythema, edema, scab formation, itching, sore throat, burning sensation, stiffness, tingling, No abnormal symptoms were found.

Example  2 and Comparative Example  1 to 5.

A sample of the cosmetic composition was prepared in the same manner as in Example 1, and a sample of the cosmetic composition was prepared according to the compounding ratio shown in Table 5 below.

Table 5. Formulation ratio (%, w / w)

Experimental Example  3. Evaluation of skin moisturizing and moisturizing sustainability efficacy

The skin moisturizing and moisturizing endurance efficacy of the cosmetic composition prepared in Example 2 and Comparative Examples 1 to 5 was evaluated in the same manner as in Experimental Example 1, and 18 subjects of 20 to 50 adult women with dry skin type Were randomly selected into 6 groups of 3 persons, and each cosmetic composition sample was applied to the forearm of the subject once at a dose of 2 mg / cm ² . Skin moisture and moisture persistence efficacy was measured by moisture content in the stratum corneum using a moisture analyzer (corneometer ^® CM-825, Courage & Khazaka, Germany) at 1 hour, 3 hours, 6 hours and 24 hours before and after application.

Table 6. Improvement of moisturizing power (p <0.05)

As a result, 0.3 to 0.7% by weight of a flower, leaf and stem extract of basil blended with a high content of nodal stem extract, basil flower, leaf and stem extract at a weight ratio of 1: 1: 1, oat kernel extract 0.3 to 0.7 By weight and 0.3 to 0.7% by weight of toothseed extract were found to enhance the skin moisturizing and moisturizing effect.

Having described specific portions of the present invention in detail, it will be apparent to those skilled in the art that this specific description is only a preferred embodiment and that the scope of the present invention is not limited thereby. It will be obvious. Accordingly, the actual scope of the present invention will be defined by the appended claims and their equivalents.

Claims (5)

From 90 to 98% by weight of a knollal stem extract, from 0.3 to 0.7% by weight of a basil flower, a leaf and a stem extract, and from 0.3 to 0.7% by weight of an oat kernel extract, based on the total weight of the composition,
Wherein the basil flower, leaf and stem extracts are mixed at a weight ratio of 0.5 to 3: 1: 0.2 to 0.5, respectively.
The method according to claim 1,
Wherein the composition comprises 94 to 98% by weight of the knorl stem extract, 0.3 to 0.5% by weight of the basil flower, leaf and stem extract, and 0.3 to 0.5% by weight of the oat kernel extract, based on the total weight of the composition.
The method according to claim 1,
Wherein the composition further comprises 0.3 to 0.5% by weight of a tooth extract based on the total weight of the composition.
The method according to claim 1,
Wherein the composition further comprises glycereth-26, carbomer, glycerin, butylene glycol, and hydroxyethanol.
5. The method of claim 4,
The composition comprises 0.07 to 0.14 wt.%, 0.2 to 0.4 wt.%, 0.2 to 0.35 wt.%, 0.01 to 0.01 wt.% Of glycereth-26, carbomer, glycerin, butyleneglycol and hydroxyethanol, To 0.015% by weight and 0.05 to 0.15% by weight, based on the total weight of the cosmetic composition.