KR101557422B1 - Cleansing composition and cosmetic composition with the extract of Styrax japonica - Google Patents

Abstract

The present invention relates to a cleansing or washing composition and a cosmetic composition for cleansing skin, moisturizing skin, and strengthening a skin barrier function, comprising extracts of a branch, a fruit, and leaves of Styrax japonica. The cleansing or washing composition and the cosmetic composition for cleansing skin of the present invention without a chemical surfactant, is easy to rinse without stimulation, with excellent generation power of bubbles, bubble persistency, and excellent usability. In addition, the cosmetic composition of the present invention has excellent skin moisturizing effects by maintaining high contents of skin moisture, and reinforces an excellent skin barrier function by reducing an amount of percutaneous moisture loss of skin.

Description

TECHNICAL FIELD The present invention relates to a cleansing or cleansing composition and a cosmetic composition containing an extract of Quercus serrata as an active ingredient,

The present invention relates to a detergent or detergent composition and a cosmetic composition containing an extract of Quercus mongolica as an active ingredient and more particularly to a detergent or detergent composition and a cosmetic composition containing a quinquinone extract, A cleanser composition and a cosmetic composition for skin cleansing, skin moisturizing and skin barrier function enhancement.

In general, detergent is a mixed substance that helps efficient cleaning of contamination. It is composed of a surfactant and an auxiliary agent. The detergent is mainly used as a detergent, for example, a surfactant used for cleaning purposes. .

In addition, the skin cleanser is used for removing wastes such as dust, sebum, sweat, and keratin on the skin and make-up residues, and is generally prepared by blending oil and moisturizing agent for the purpose of excellent detergency with surfactant as a main component to be.

The surfactant is a substance that adsorbs at the interface and lowers the free energy of the interface to change the properties of the interface, and is a substance having both a hydrophilic group and a lipophilic group in one molecule. These are classified into chemically synthesized chemical surfactants and naturally occurring natural surfactants. Chemical surfactants include nonionic surfactants, cationic surfactants, anionic surfactants and amphoteric surfactants. Natural surfactants include lecithin , Lanolin, saponin, and biosurfactants through microbial cultures.

On the other hand, chemical surfactants cause skin irritation and dryness of the stratum corneum due to excessive deagglomeration, and have side effects that cause inflammation and skin diseases. Recently, there has been a constant demand for a natural surfactant that minimizes skin irritation and is washed away from the skin.

On the other hand, in the human body, the skin is an organ acting as a protective film for protecting the living body from the external environment. It prevents loss of biological components in the human body, that is, water and electrolytes, and prevents harmful substances from entering the human body from the outside . The skin is divided into the skin layer, the dermal layer and the subcutaneous fat layer. The epidermal layer consists of keratinocytes and melanocytes. Since the keratinocytes in the outermost layer of the skin are in direct contact with the external environment, they are required to have strong resistance against physical, chemical, or material permeation and prevent moisture from being lost to the outside At the same time as zooming, it should maintain its flexibility by holding proper water on its own.

Generally, the moisture content of the skin is about 70% in the dermal layer, but decreases to the skin layer, which is about 10 to 30% in the keratin layer. The water supplied from the dermis layer mainly migrates to the upper part of the stratum corneum by passive diffusion and eventually to the outside. This is called Trans Epidermal Water Loss (TEWL). It is known that the lipid component of the keratinocyte layer and epidermal lipid, which maintains the transdermal water loss at an appropriate level, is the lipid component. In the keratinocyte layer, a substance having hydrophilic water retention ability called "Natural Moisturizing Factor" (NMF) is present and is known to play an important role in moisturizing the skin. When the normal keratinocyte layer is maintained at a moisture content of 10 to 30%, the skin is smooth and soft, and the body protection functions normally.

However, when the moisture content of keratinocytes is less than 10%, the skin becomes rough and loses protective function of the body and aging occurs. For example, in the case of dry skin, the keratinocyte aggregation is weakened and scaling phenomenon occurs in which the keratinocyte is peeled off like a piece of scales from the surface of the skin. The dryness of the skin in this way indicates that the moisture content of the keratinocyte layer It is less than normal skin. In addition to this, even healthy skin may be in a harsh environment, such as wind, cold weather, sunshine, cleansing, shaving, etc., which causes water shortage, which can cause a bad skin condition.

Therefore, it is very important to properly maintain the moisture content of the keratinocyte layer of the skin. To this end, cosmetics were added with ingredients similar to sebum, NMF ingredients, or moisturizers such as polyols. For example, glycerin, solitol and the like having three or more hydroxyl groups (OH groups) as water-soluble polyols exhibit excellent moisture resistance, but they are very sticky and feel uncomfortable when used. Propylene glycol having two hydroxyl groups (OH groups) 3-butylene glycol and the like may cause side effects to the skin. In addition, other natural moisturizing factors such as sodium pyrrolidonecarboxylate (PCA-Na), sodium lactate, urea and the like have a problem of deteriorating the emulsification stability of cosmetics due to their high electrolytic property. Also, amino acids, collagen, There was a limit to its ability to moisturize, though it was capable. The ability of the stratum corneum to retain moisture is controlled by natural moisturizing factor (NMF) consisting of sebum component, amino acid, lactic acid, urea and inorganic salt. It is safe as well as natural moisturizing factor in external application for skin, Development of highly effective substances is one of the important research subjects in cosmetics.

On the other hand, Styrax japonica Sieb. Et Zucc. Is a shrub belonging to the genus Styrax . It grows in tropical or warm regions. Deciduous leaves are horned leaves and have short petiole. The white flower hangs mainly in the form of an end cluster, and has a corolla composed of five rounded protrusions. Until now, no cleaning or cleaning agent composition containing eggplant, fruit or leaf extract of Quercus cinnamon as an active ingredient and a cosmetic composition for skin cleansing, skin moisturizing and skin barrier function enhancement have been disclosed.

Korean Patent Registration No. 10-1425023 (registered on Jul. 24, 2014) describes a surfactant composition containing an omija oil extracted from Omija seeds and a cleaning composition containing the surfactant composition. Korean Patent Publication No. 10-2012-0121646 (published on November 6, 2012) discloses a composition prepared by using a mushroom extract as a main ingredient of a natural skin cleansing agent and a method for producing a soap or a cleansing oil using the composition . ≪ / RTI > Korean Patent Registration No. 10-1367306 (registered on Feb. 19, 2014) discloses a cosmetic composition for whitening and moisturizing which contains tetradecanol extracted from Hokutogi extract as an active ingredient.

It is an object of the present invention to provide a cleaning or detergent composition containing as an active ingredient at least one selected from the group consisting of branches, fruits and leaves of Quercus acutissima, and a cosmetic composition for skin cleansing, skin moisturizing and skin barrier function enhancement do.

In order to attain the above object, the present invention provides a cleaning or cleaning composition comprising as an active ingredient at least one extract selected from among quercetin, fruit, and leaf.

In the cleaning or detergent composition of the present invention, any one or more of the extracts selected from the above-mentioned tree branches, fruits and leaves may be used in various extraction methods commonly used in the technical field of the present invention. Preferably, water is extracted using any one extraction solvent selected from the group consisting of water, anhydrous or lower alcohol having 1 to 4 carbon atoms, acetone, ethyl acetate, butyl acetate and 1,3-butylene glycol, Branches, fruits and leaves are extracted using the above-mentioned extraction solvent, and then they are mixed. More preferably, an alcohol is preferably used in the solvent, and most preferably, an aqueous solution of 60 to 80% ethanol is used as a solvent to obtain an extract. At this time, the suitable amount of the extraction solvent is 1 to 15 times, more preferably 5 to 10 times, and most preferably 7 times the dry weight of the quince tree.

 In addition, the extracts of any one or more selected from the branches, fruits and leaves of the above-mentioned Quercus acutissima include not only the extracts obtained by the above-mentioned extraction solvents, but also the extracts extracted by other methods. Extraction by ultra-high pressure extraction; Separation using an ultrafiltration membrane having a constant molecular weight cut-off value; Fractions obtained by various further purification methods, such as separation by chromatography produced for various chromatographic separations, for example, size, charge, hydrophobicity or affinity, are also included in the present invention, It is included in at least one selected extract.

In addition, the eggplant, fruit and leaf extracts of the quercus variabilis may be prepared in powder form by an additional process such as vacuum distillation and freeze drying or spray drying.

Meanwhile, in the present invention, the content of any one or more extracts selected from the branches, fruits and leaves of Quercus acutissima added to the washing or cleaning composition is from 0.0001 to 30.0% by weight based on the total weight of the cleaning or cleaning composition, Is 0.001 to 25.0% by weight, and most preferably 0.1 to 10.0% by weight. If the content of any one or more of the extracts selected from the branches, fruits and leaves of the quercus variabilis is less than 0.0001% by weight, the washing or washing effect is insignificant, and if the content is more than 30.0% by weight, economical.

Meanwhile, the cleaning or cleaning composition of the present invention may be used for washing.

The cleaning or detergent composition of the present invention can be used as a detergent or detergent composition in the form of a fabric softener, a fiber shrinkage protection agent, a fiber shrinkage protection agent, an enzyme such as lipase, amylase or cellulase, an organic solvent, water, an antistatic agent, a water repellent agent, Bleaching agents, viscosity and flow control agents, ironing improvers or deodorants, and the like.

Meanwhile, the present invention provides a cosmetic composition for skin cleansing, which comprises, as an active ingredient, at least one selected from among branches, fruits and leaves of Quercus acutissima.

The formulations of the cosmetic composition for skin cleansing may be prepared in any formulation conventionally produced in the art, and may be, for example, cleansing foams, cleansing gels, and soaps.

The cosmetic composition for skin cleansing according to the present invention may further comprise at least one component selected from the group consisting of aliphatic alcohol sulfate, aliphatic alcohol ether sulfate, sulfosuccinic acid monoester, isethionate, imidazolinium derivative, methyl taurate, sarcosinate, fatty acid amide ether sulfate , Alkylamidobetaine, aliphatic alcohols, fatty acid glycerides, fatty acid diethanolamides, vegetable oils, lanolin derivatives or ethoxylated glycerol fatty acid esters, and the like.

Meanwhile, the present invention provides a cosmetic composition for skin moisturizing and skin barrier function, which comprises, as an active ingredient, at least one selected from the group consisting of branches, fruits and leaves of Quercus acutissima.

The cosmetic composition for skin moisturizing or skin barrier function enhancement may contain, as an active ingredient, components commonly used in cosmetic compositions in addition to any one or more extracts selected from the branches, fruits and leaves of the quinceanera sp. , Stabilizers, solubilizing agents, vitamins, customary adjuvants such as pigments and flavoring agents, and carriers.

Meanwhile, the cosmetic composition for enhancing skin barrier function or skin barrier function of the present invention may be prepared in any formulations conventionally produced in the art, and examples thereof include solutions, suspensions, emulsions, pastes, gels, creams, Lotions, powders, oils, powder foundations, emulsion foundations, wax foundations and sprays. However, the present invention is not limited thereto. More specifically, it can be manufactured in the form of a soft lotion, a convergent lotion, a nutritional lotion, a nutritional cream, a massage cream, an essence, an eye cream, a pack, a spray or a powder.

When the formulation of the cosmetic composition for enhancing skin barrier function or skin barrier function of the present invention is a paste, cream or gel, the carrier component may be an animal oil, a vegetable oil, a wax, a paraffin, a starch, a tracant, a cellulose derivative, a polyethylene glycol, Bentonite, silica, talc or zinc oxide may be used.

When the formulation of the cosmetic composition for skin moisturizing or skin barrier function of the present invention is powder or spray, lactose, talc, silica, aluminum hydroxide, calcium silicate or polyamide powder may be used as the carrier component , And in the case of a spray, in particular propellants such as chlorofluorohydrocarbons, propane / butane or dimethyl ether.

When the formulation of the cosmetic composition for skin moisturizing or skin barrier function of the present invention is a solution or an emulsion, a solvent, a dissolving agent or an emulsifying agent is used as a carrier component, and examples thereof include water, ethanol, isopropanol, ethyl carbonate, Ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butyl glycol oil, glycerol aliphatic ester, polyethylene glycol or sorbitan fatty acid esters.

When the formulation of the cosmetic composition for skin moisturizing or skin barrier function enhancement of the present invention is a suspension, a liquid diluent such as water, ethanol or propylene glycol, ethoxylated isostearyl alcohol, polyoxyethylene sorbitol ester And polyoxyethylene sorbitan esters, microcrystalline cellulose, aluminum metahydroxide, bentonite, agar or tracant and the like can be used.

Meanwhile, in the cosmetic composition of the present invention, the extract of any one or more selected from the above-mentioned tree branches, fruits and leaves may be used in various extraction methods commonly used in the technical field of the present invention. Preferably, water is extracted using any one extraction solvent selected from the group consisting of water, anhydrous or lower alcohol having 1 to 4 carbon atoms, acetone, ethyl acetate, butyl acetate and 1,3-butylene glycol, Branches, fruits and leaves are extracted using the above-mentioned extraction solvent, and then they are mixed. More preferably, an alcohol is preferably used in the solvent, and most preferably, an aqueous solution of 60 to 80% ethanol is used as a solvent to obtain an extract. At this time, the suitable amount of the extraction solvent is 1 to 15 times, more preferably 5 to 10 times, and most preferably 7 times the dry weight of the quince tree.

 In addition, the extracts of any one or more selected from the branches, fruits and leaves of the above-mentioned Quercus acutissima include not only the extracts obtained by the above-mentioned extraction solvents, but also the extracts extracted by other methods. Extraction by ultra-high pressure extraction; Separation using an ultrafiltration membrane having a constant molecular weight cut-off value; Fractions obtained by various further purification methods, such as separation by chromatography produced for various chromatographic separations, for example, size, charge, hydrophobicity or affinity, are also included in the present invention, It is included in at least one selected extract.

In addition, the eggplant, fruit and leaf extracts of the quercus variabilis may be prepared in powder form by an additional process such as vacuum distillation and freeze drying or spray drying.

On the other hand, the content of at least one selected from the branches, fruits and leaves of Quercus acutissima added to the cosmetic composition of the present invention is 0.0001 to 30.0% by weight, preferably 0.001 to 25.0% by weight based on the total weight of the cosmetic composition , And most preferably 0.1 to 10.0 wt%. When the content of any one or more of the extracts selected from the branches, fruits and leaves of the above-mentioned Quercus acutissima is less than 0.0001% by weight, the skin-cleansing effect, skin moisturizing effect or skin barrier function-enhancing effect is insignificant. It is because it can not be.

On the other hand, the extract of at least one selected from the branches, fruits and leaves of the present invention showed antioxidative effect (see Experimental Example 1) and anti-inflammatory effect (see Experimental Example 3) (See Experimental Example 2). In addition, the detergent composition containing any one of the extracts selected from the branches, fruits and leaves of Quercus acutissima as an effective ingredient showed excellent foaming power, bubble persistence and easiness of rinsing, (See Experimental Example 4), a cosmetic composition containing an extract of any one of the branches, fruits and leaves of Quercus acutissima as an active ingredient has excellent skin moisturizing effect (see Experimental Example 5), superior skin barrier function Reinforcing effect (see Experimental Example 6).

The present invention can provide a cleaning or detergent composition containing as an active ingredient at least one selected from the group consisting of branches, fruits and leaves of Quercus acutissima, and a cosmetic composition for skin cleansing. The cleaning or cleaning composition of the present invention and the cosmetic composition for skin cleansing are natural surfactants and contain quercus acutissima bark extract to exhibit excellent foaming power and foam persistence without containing a chemical surfactant, It is very good.

In addition, the present invention can provide a cosmetic composition for enhancing skin moisturizing effect and skin barrier function containing an extract of leaves, fruits and leaves of Quercus acutissima as an effective ingredient. The cosmetic composition of the present invention maintains a high moisture content of the skin to enhance the moisturizing effect of the skin and reduce the transdermal water loss of the skin, thereby enhancing the skin barrier function.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the scope of the present invention is not limited to the following embodiments, and includes modifications of equivalent technical ideas.

[Preparation Example 1: Preparation of eggplant / fruit / leaf extract of Quercus acutissima]

The branches / fruits / leaves of Quercus acutissima were washed with purified water, dried, and then pulverized and finely ground using a sieve of 100 mesh. 70% ethanol was added thereto so as to have 100 g / L of the eggplant / fruit / leaf crushing material of Quercus acutissima, and the mixture was refluxed three times for 5 hours. After cooling, the mixture was filtered through Whatman # 3 filter paper, Followed by concentration under reduced pressure and lyophilization. Hereinafter, the extracts of branches, fruits and leaves of Quercus acutissima were referred to as Quercus acutissima extract.

[Comparative Preparation Example 1: Preparation of soap-core extract]

In this Comparative Production Example, an extract of soap grass, which is a typical material used as a natural detergent, was generally prepared. The leaves / roots of the soap grass were washed with purified water, dried, and then pulverized and finely ground using a sieve of 100 mesh. 70% ethanol was added so that the leaf / root mixture of soap grass was 100 g / L, and the mixture was refluxed three times for 5 hours. After cooling, the mixture was filtered through Whatman # 3 filter paper, Concentrated and lyophilized. Hereinafter, the leaf / root extract of soap grass was referred to as 'soap grass extract'.

[Experimental Example 1: Evaluation of antioxidative activity of extract of Quercus acutissima by DPPH method]

To evaluate the free radical scavenging activity of the extract of Quercus mongolica var. Japonica extract of Preparation Example 1 and the extract of soap bar of Comparative Preparation Example 1.

The DPPH assay measures absorbance at 540 nm to the extent that the inhibitor decolorizes the stable radical DPPH (2,2-Diphenyl-1-picrylhydrazyl radical). The samples used were as shown in Table 1 below, and the free radical scavenging activity (%) was measured using the following equation (1). The positive control group was Epigallocatechin gallate (EGCG), and the measurement results are shown in Table 2 below.

A: Abs of experimental group

B: Abs blank of experimental group

C: Abs of control group

D: Abs of blank of control group

Material Ctrol group Blank of C Exp. Group Blank of E A DPPH (MeOH) 180 μl (180 [mu] L) 180 μl (180 [mu] L) B Sample (solvent) (20 [mu] L) (20 [mu] L) 20 μl 20 μl

Production Example 1 Comparative Preparation Example 1 25 uM EGCG 56.04% 0.001% 7.36% 5.23% 0.002% 19.38% 5.62% 0.005% 25.96% 6.21% 0.01% 38.01% 7.28%

As a result of the experiment, the extract of Quercus acutissima (Production Example 1) showed better free radical scavenging activity than the extract of soap extract (Comparative Production Example 1).

[Experimental Example 2: Evaluation of cell survival rate of Quercus acutissima L. extract]

In this experimental example The toxicity of the Quercus acutissima extract of Preparation Example 1 to cells was measured.

Cytotoxicity was performed by modifying the method of Mosmann to measure cell viability using 3- (4,5-dimethylthiazol-2-yl) -2-5-diphenyltetrazolium bromide (MTT) reagent.

Human fibroblast cells (HDF) were seeded in a 96-well plate at a concentration of 1 × 10 ⁴ cells / well and cultured at 37 ° C. and 5% CO ₂ for 24 hours. After the culture, the medium was removed and the sample (preparation of Preparation Example 1) was cultured for 24 hours in a concentration-dependent medium. The medium was removed and washed twice with PBS (phosphate buffered saline). After that, MTT was dissolved in PBS at 5 mg / ml, and 50 L was added. Then, the cells were cultured at 37 ° C and 5% CO ₂ for 2 hours. After that, 100 L of DMSO was added per well, and the mixture was stirred for 10 minutes and absorbance was measured at 540 nm.

As a result, no cytotoxicity was observed at all concentrations of the sample. From the above results, it was confirmed that the Quercus crispus extract of the present invention is harmless to the human body and has excellent safety.

[Experimental Example 3: Evaluation of anti-inflammatory properties of Quercus acutissima extract (5-Lipoxygenase inhibition)]

In this experiment, 5-Lipoxygenase inhibitory activity of the extract of Quercus mongolica var. Japonica extract of Preparation Example 1 and the extract of soap bar of Comparative Preparation Example 1 was evaluated to evaluate the anti-inflammatory effect.

Lipoxygenase produces a number of substances that act as various chemical mediators involved in inflammatory and allergic reactions in vivo from arachidonic acid. Therefore, a substance that inhibits lipoxygenase may result in inhibiting the production of various chemical mediators, so that it can be assumed that it is effective for allergy. The degree of activity of lipoxygenase can be measured by the degree of peroxide formation using substrates and enzymes.

The samples used in this Experimental Example were as shown in Table 3 below, and the 5-Lipoxygenase inhibitory activity (%) was measured using the above formula (1). In addition, the positive control group was NDGA (Nordihydroguaiaretic acid), and the measurement results were as shown in Table 4 below.

Material Ctrol group Blank of C Exp. Group Blank of E A Buffer 2 ml 2 ml 2 ml 2 ml B Sample (solvent) (20 [mu] L) (20 [mu] L) 20 μl 20 μl C Enzyme 40 μl - 40 μl - D Substrate 70 μl 70 μl 70 μl 70 μl

Production Example 1 Comparative Preparation Example 1 250 nM NDGA 55.51% 0.001% 24.61% 2.53% 0.002% 31.27% 5.30% 0.005% 39.22% 4.25% 0.01% 44.03% 5.23%

As a result of the experiment, it was confirmed that the extract of Quercus mongolica (preparation example 1) of the present invention showed superior 5-Lipoxygenase inhibitory effect than the soap extract (Comparative preparation example 1) there was.

[Example 1: Preparation of detergent composition containing Quercus acutissima extract]

In this example, a skin cleanser composition containing Quercus crispus extract was prepared. As shown in Table 5, a detergent composition (Formulation Example 1) containing 5.0 wt% of Quercus mongolica extract and a detergent composition (Comparative Formulation Example 1) containing no Quercus acutissima extract were prepared. A detergent composition (Comparative Prescription Example 2) containing 5.0 wt% of sodium lauryl sulfate (SLS), which is a representative anionic surfactant, was also prepared.

ingredient Prescription Example 1
Content (% by weight) Comparative Prescription Example 1
Content (% by weight) Comparative Prescription Example 2
Content (% by weight) Production Example 1 5.0 - - Comparative Preparation Example 1 - 5.0 - SLS - - 5.0 1,3-BG 10.0 10.0 10.0 glycerin 5.1 5.1 5.1 Polysorbate 60 1.6 1.6 1.6 Sorbitan sesqui-chloride 1.6 0.6 1.6 Propylparaben 0.6 1.5 0.6 NaCl 1.0 1.0 1.0 Purified water Balance Balance Balance system 100 100 100

[ Experimental Example  4: Measurement of washing effect of detergent composition containing Quercus acutissima extract]

In this experimental example, the cleaning effect of the detergent composition containing Quercus acutissima extract was investigated.

Twenty patients in the 20s to 40s without skin disease were divided into two groups each consisting of 20 patients per group, and the feeling of use of the prescription example 1, the comparative prescription example 1 and the comparative prescription example 2 prepared in Example 1 was divided into two groups, Respectively. The evaluation criteria are shown in Table 6 below for the foaming power, the foam sustainability, the irritation and the ease of rinsing.

<Bubbling power>

○: More than 20 people replied that bubbles were good.

△: 10 ~ 19 persons replied that bubble generation power was good.

X: 1 to 9 people replied that bubbling power was good.

<Bubble persistence>

○: More than 20 people answered that bubble persistence is good.

△: 10 ~ 19 people replied that bubble persistence is good.

X: 1 ~ 9 people replied that bubble persistence is good.

<Irritation>

○: More than 20 people answered that they did not feel irritation on the skin.

△: 10 ~ 19 people answered that they did not feel irritation on the skin.

X: 1 to 9 responded that they did not feel irritation on the skin.

<Ease of rinsing>

&Amp; cir &amp;: More than 20 people replied that the ease of rinsing was good.

?: 10 to 19 people replied that the ease of rinsing was good.

X: 1 to 9 people replied that the ease of rinsing was good.

Evaluation standard Prescription Example 1 Comparative Prescription Example 1 Comparative Prescription Example 2 Bubble power ○ △ ○ Bubble persistence ○ △ ○ pepper ○ △ △ Ease of rinsing ○ △ △

As a result of the experiment, it was evaluated that Formulation Example 1, which is a detergent composition containing the extract of Quercus mongolica extract of the present invention, is superior in both foaming power, foam sustainability, irritability and easiness of rinsing. In addition, the detergent composition of comparative formulation example 2 containing a chemical surfactant exhibited irritation to the skin and was not easy to rinse.

From the above results, it was confirmed that the detergent composition containing Quercus mongolica extract exhibits excellent washing power without containing a chemical surfactant, has no irritation and is easy to rinse, and thus has excellent feeling of use.

[ Example  2: Containing Quercus mongolica extract Cosmetics  Preparation of the composition]

In this Example, a cosmetic composition containing Quercus acutobacter extract was prepared. As shown in Table 7 below, a cosmetic composition (Formulation Example 2) containing 5.0 wt% of Quercus mongolica extract and a cosmetic composition (Comparative Formulation Example 3) containing no Quercus acutissima extract were prepared.

ingredient Prescription Example 2
Content (% by weight) Comparative Prescription Example 3
Content (% by weight) Production Example 1 5.0 - Comparative Preparation Example 1 - 5.0 1,3-BG 10.0 10.0 glycerin 5.1 5.1 Propylene glycol 4.2 4.2 Tocopheryl acetate 3.0 3.0 Liquid paraffin 4.6 4.6 Triethanolamine 1.0 1.0 Squalane 3.1 3.1 Macadamia nut oil 2.5 2.5 Polysorbate 60 1.6 1.6 Sorbitan sesqui-chloride 1.6 1.6 Propylparaben 0.6 0.6 Carboxyl vinyl polymer 1.5 1.5 incense a very small amount a very small amount antiseptic a very small amount a very small amount Purified water Balance Balance system 100 100

[Experimental Example 5: Evaluation of Skin Moisturizing Ability of Cosmetic Composition Containing Quercus acutissima Extract]

In this Experimental Example, the skin moisturizing ability of the cosmetic composition containing the extract of Quercus mongolica var.

Twenty twenty to forty persons without skin disease were divided into two groups of 20 persons per one group, and the cosmetic composition of Example 2 of the Example 2 and the Comparative Preparation Example 3 were administered twice daily for one month And spread on the forehead. The skin conductivity was measured by a corneometer (CM820 courage Khazaka electronic GmbH, Germany) in a constant temperature and humidity condition (24 ° C, 40% humidity) before the start of application, The rate of increase (%) of skin conductivity after 4 weeks was measured and the rate of increase was evaluated. The results are shown in Table 8 below.

sample After 1 week after 2 weeks After 4 weeks Prescription Example 2 52 57 64 Comparative Prescription Example 3 28 35 39

As a result of the experiment, it was confirmed that in the case of Formulation Example 2, which is a cosmetic composition containing the extract of Quercus mongolica var. Japonica extract of the present invention, the rate of skin conductivity increase is much superior to that of Comparative Prescription Example 3. In general, the skin conductivity is proportional to the skin moisture content. Therefore, it can be confirmed that the cosmetic composition containing Quercus acutissima extract maintains the moisture content of the skin higher than that of the non-cosmetic composition.

[Experimental Example 6: Evaluation of enhancing effect of skin barrier function of cosmetic composition containing Quercus acutissima extract]

In this experiment, the skin barrier function enhancing effect of the cosmetic composition containing the extract of Quercus mongolica var.

Each sample was applied to the right and left faces of 40 women in their 20s and 40s. The samples were divided into 1 hour, 2 hours, 4 hours, and 6 hours of transdermal water The loss was measured three times using a Tewameter (TM300, Courage and Khazaka Electronic Co., Germany) and the average value was used to evaluate the amount of percutaneous water loss. The results are shown in Table 9 below.

division 1 hours 2 hours 4 hours 6 hours Prescription Example 2 15.7 15.5 13.4 10.1 Comparative Prescription Example 3 17.9 17.1 15.6 14.0

(Unit: g / h / m ² )

As a result of the experiment, it was confirmed that the amount of transdermal water loss was further reduced in the facial skin of Experimental Example 2, which is a cosmetic composition containing the extract of Quercus mongolica var.

From the above results, it was confirmed that the cosmetic composition containing the extract of Quercus mongolica extract as an active ingredient exerts an effect on enhancing the skin barrier function.

Claims (8)

Containing a natural surfactant as an active ingredient,
Wherein the natural surfactant is at least one selected from the group consisting of branches, fruits and leaves of Quercus acutissima.
The method according to claim 1,
The above-
Characterized in that it is extracted using any one extraction solvent selected from the group consisting of water, anhydrous or lower alcohol having 1 to 4 carbon atoms, acetone, ethyl acetate, butyl acetate and 1,3-butylene glycol. Detergent composition.
Containing a natural surfactant as an active ingredient,
Wherein the natural surfactant is at least one selected from the group consisting of branches, fruits and leaves of the quince tree.
The method of claim 3,
The above-
Characterized in that it is extracted using any one extraction solvent selected from the group consisting of water, anhydrous or lower alcohol having 1 to 4 carbon atoms, acetone, ethyl acetate, butyl acetate and 1,3-butylene glycol. / RTI &gt;
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