KR102054273B1 - A cosmetic composition for UV protection containing barley or colored barley extract - Google Patents

Abstract

The present invention relates to a cosmetic composition comprising the barley or colored barley extract of the present invention, which has excellent blocking effect of UVB and / or UVA, and a chemical sunscreen agent such as ethhexylmethoxycinnamate or butylmethoxydibenzoylmethane is applied to UV. It has an excellent effect on preventing stability degradation that may occur when exposed.

Description

A cosmetic composition for UV protection containing barley or colored barley extract}

The present invention relates to a cosmetic composition comprising barley or colored barley extract.

Ultraviolet Ray (UV) is a solar light with a wavelength range of 200 to 400 nm adjacent to the violet band in the electromagnetic spectrum and invisible to the human eye. When human skin is exposed to UV light, it causes photoaging, cell damage, DNA damage, etc. May be induced. UV rays contained in sunlight cause blemishes by promoting erythema formation or melanin pigmentation in skin cells when excessively irradiated directly to the skin, and it causes skin trouble by generating lipid peroxide in response to sebum secreted in the epidermis It may also generate. In severe cases, it can cause skin cancer.

There are two types of sunscreens used to prevent skin damage caused by UV. One of them is UV such as Ethylhexyl Methoxycinnamate and Butyl Methoxydibenzoylmethane. Chemical sunscreens with absorbing properties and the other is a physical sunscreen with UV scattering properties such as titanium dioxide. However, for example, in the hexahexylmethoxycinnamate stabilized state, the carbon-carbon double bond included in the structure is present in the Z-form structure, but isomerization to some E-forms when exposed to UV Chemical sunscreens, which are known to have a disadvantage of poor UV absorption (International Journal of Cosmetic Science, 153 ~ 160, 23, 2001). There is a problem in the physical sunscreens such as bleaching or phototoxicity, and various studies have been conducted on sunscreens.

Light stabilizer materials for UV have been disclosed in Korean Patent Nos. 10-0421831, 10-0496096. The patents have the disadvantages of safety and skin irritation as a synthetic compound and a material used simultaneously as a light stabilizer and a sunscreen. Therefore, in recent years, in order to supplement and replace the disadvantages of synthetic sunscreens and photostabilizers, research on the development of related materials using natural plant extracts has been actively conducted.

Republic of Korea Patent No. 10-0421831

An object of the present invention is to provide a sunscreen cosmetic composition comprising barley or colored barley extract.

Another object of the present invention is to provide a cosmetic composition for improving light stability comprising barley or colored barley extract.

In order to achieve the above object, the present invention provides a sunscreen cosmetic composition comprising a barley or colored barley extract in one embodiment.

In the present invention, the sunscreen cosmetic composition comprises an extract of barley or colored barley as an active ingredient.

In the present invention, the barley ( Hordeum vulgare L.) is a plant belonging to the rice paddy and barley genus, annual or biennial vegetation, the stem is empty, grows to about 1m in height. It is usually planted in autumn and harvested in the following spring. The main stem is hollow and columnar, with high nodes and long between nodes. Leaves are alternate, broad lanceolate, 10-15mm wide. Flowers bloom in April and May. Compared with other varieties, barley is high in carbohydrates and rich in minerals such as calcium, phosphorus and iron, and vitamin B.

Colored barley in the present invention is called color barley, functional barley or functional color barley, is an improved species of barley ( Hordeum vulgare L.). Colored barley is rich in natural pigments such as anthocyanins, and the color of the colored barley may be black, blue, purple, yellow, purple, green, or red, but is not limited thereto.

Colored barley of the present invention includes black barley rice (black bark), Kanghocheong (cheongmac), embroidery scout (jamac), white rice barley (yellow barley).

Barley or colored barley extract in the present invention means the extract of water, organic solvent or a mixed solution of barley or colored barley. The organic solvent may be an alcohol having 1 (C ₁ ) to 4 (C ₄ ) carbon atoms such as methanol, ethanol and butanol.

In one embodiment of the present invention barley and colored barley (black and blue barley, barley, yellow barley) was prepared in about 200g weight, pulverized to the size of 1/10, the powder was dispersed in 70% ethanol aqueous solution for 48 hours After extraction, the extract was filtered through Whatman Filter Paper Grade 2 to remove impurities to prepare barley or colored barley extract.

Therefore, the barley or colored barley extract of the present invention can be extracted using ethanol, specifically, barley or colored barley may be the result obtained by pulverizing and dispersing in 65 to 75% ethanol and extracting for 1 to 3 days and then filtering However, the present invention is not limited thereto, and may include any extract, a diluent or concentrate of the extract, a dried product obtained by drying the extract, or all of these modifiers or purified products. have

In the present invention, UV blocking means protecting the skin from damage caused by ultraviolet rays by absorbing or scattering ultraviolet rays causing erythema, edema, freckles or skin cancer on the skin, and the ultraviolet rays are ultraviolet rays B (wavelength of 280 to 320nm). UV-B) and wavelengths from 320 to 400 nm include ultraviolet A (UV-A).

In one embodiment of the present invention, the purified water extract of Comparative Preparation Examples 1 to 5 showed an absorbance of 0.757 to 1.212 at 290 nm, which is a UV-B region, and confirmed that there was a blocking effect of UV-B. Absorbance of 0.130 to 0.465 at ㎚ and 357nm was confirmed that there is a blocking effect of UV-A.

In addition, the absorbance measurement results at 290 nm of the 70% ethanol extract of Preparation Examples 1 to 5 were confirmed to have a UV-B blocking effect superior to the purified water extract as 1.468 to 1.672, and an absorbance of 0.199 to 0.629 at 340 nm and 357 nm. It was confirmed that the blocking effect of UV-A is also superior to the purified water extract.

Therefore, barley or colored barley extract can be used as a cosmetic composition for sun protection, specifically, when using the ethanol extract of 65% to 75% of barley or colored barley, the UV protection effect is excellent, more specifically 70% ethanol extract UV protection effect is excellent when using.

The cosmetic composition for sunscreen may further comprise a chemical sunscreen or physical sunscreen.

 The chemical sunscreen agent includes oxybenzone (benzophenone-3), avobenzone (butylmethoxydibenzoylmethane), octinoxate (ethylhexylmethoxycinnamate), octocrylene, and the like, which absorb ultraviolet rays. The physical sunscreen agent includes titanium dioxide (titanium dioxide) and zinc oxide (zinc oxide), which are materials that scatter ultraviolet rays.

The sunscreen cosmetic composition of the present invention may include 0.001 to 100% by weight of barley or colored barley extract, and preferably 0.01 to 50% by weight of barley or colored barley extract based on the total weight of the composition. However, the present invention is not limited thereto.

In addition, the cosmetic composition of the present invention may include without limitation the conventionally acceptable ingredients in addition to the active ingredient, and includes conventional auxiliaries such as antioxidants, stabilizers, solubilizers, vitamins, pigments and flavors, and carriers. can do.

The cosmetic composition according to the present invention is a solution, external ointment, cream, foam, nourishing lotion, softening lotion, pack, softening water, latex (lotion), makeup base, essence, soap, liquid cleansing agent, bath agent, sunscreen cream, sun oil , Sun lotions, suspensions, emulsions, pastes, gels, powders, soaps, surfactant-containing cleansing, oils, powder foundations, emulsion foundations, wax foundations, patches and sprays. May be, but is not limited thereto.

In addition, the cosmetic composition of the present invention may further include one or more cosmetically acceptable carriers formulated in general skin cosmetics, and as conventional components, for example, oil, water, surfactants, moisturizers, lower alcohols, Thickeners, chelating agents, pigments, preservatives, flavoring agents, and the like may be appropriately blended, but are not limited thereto. The cosmetically acceptable carrier included in the cosmetic composition of the present invention varies depending on the dosage form.

When the formulation of the present invention is an ointment, paste, lotion, cream or gel, the carrier component is animal oil, vegetable oil, wax, paraffin, starch, tracant, cellulose derivative, polyethylene glycol, silicone, bentonite, silica, talc, oxidation Zinc or mixtures thereof can be used.

If the formulation of the invention is a powder or a spray, lactose, talc, silica, aluminum hydroxide, calcium silicate, polyamide powder or mixtures thereof may be used, in particular in the case of a spray additionally chloro Propellants, such as fluorohydrocarbons, propane / butane or dimethyl ether.

When the formulation of the present invention is a solution or emulsion, solvents, solubilizers or emulsions are used as carrier components, such as water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butylene glycol may be used, and in particular, cottonseed oil, peanut oil, corn seed oil, olive oil, castor oil and sesame oil, glycerol aliphatic ester, polyethylene glycol or fatty acid ester of sorbitan may be used. have.

When the formulation of the present invention is a suspension, liquid carrier diluents such as water, ethanol or propylene glycol, suspending agents such as ethoxylated isostearyl alcohol, polyoxyethylene sorbitol ester and polyoxyethylene sorbitan ester, micro Crystalline cellulose, aluminum metahydroxy, bentonite, agar or tracant and the like can be used.

When the formulation of the present invention is a soap, alkali metal salts of fatty acids, fatty acid hemiester salts, fatty acid protein hydrolyzates, isethionates, lanolin derivatives, aliphatic alcohols, vegetable oils, glycerol, sugars and the like may be used as carrier components. Can be.

When the formulation of the present invention is a surfactant-containing cleansing, the carrier component is an aliphatic alcohol sulfate, an aliphatic alcohol ether sulfate, a sulfosuccinic acid monoester, isethionate, an imidazolinium derivative, a methyltaurate, a sarcositate, a fatty acid amide ether. Sulfates, alkylamidobetaines, aliphatic alcohols, fatty acid glycerides, fatty acid diethanolamides, vegetable oils, lanolin derivatives or ethoxylated glycerol fatty acid esters and the like can be used.

As another aspect, the present invention provides a cosmetic composition for improving light stability comprising barley or colored barley extract.

In the present invention, the light stabilizer cosmetic composition for improving the barley or colored barley as an active ingredient, and improves the light stability of the sunscreen.

In the present invention, the barley or colored barley extract, a description of the cosmetic composition is as described above.

The light stability improvement of the present invention means that the existing sunscreen agent is alleviated or reduced the phenomenon that the absorption ability to the UV is exposed to ultraviolet light.

Therefore, the sunscreen means a chemical sunscreen that absorbs UV. The chemical sunscreens include oxybenzone (benzophenone-3), avobenzone (butylmethoxydibenzoylmethane), octinoxate (ethylhexylmethoxycinnamate), octocrylene and the like.

In one embodiment of the present invention by adding a barley or colored barley ethanol extract to the hexahexyl methoxycinnamate as a sunscreen to evaluate the photostability improvement effect of barley or colored barley extract by evaluating the rate of ultraviolet absorbance reduction before and after UV irradiation It was confirmed that the effect of improving light safety was 47.3 to 75.1%, and in particular, the ethanol extract of dark and blue malt was 72.6% and 75.1%, respectively.

Therefore, barley or colored barley extract can be used as a cosmetic composition for improving the light stability of the sunscreen, specifically, when the use of 65% to 75% ethanol extract of barley or colored barley is excellent in light stability.

In addition, in one embodiment of the present invention by measuring the SPF reduction rate of the formulation example containing the dark vein extract powder and the comparative formulation does not include the powder to measure the light stabilization effect. When the dark vein extract was contained as a sunscreen material, compared with the formulation Comparative Example 1 containing only ethylhexylmethoxycinnamate and butylmethoxydibenzoylmethane, the SPF reduction rate was reduced, and it was confirmed that it had an excellent photostabilization effect of 77.2%.

Therefore, the light stable cosmetic composition may further comprise ethylhexylmethoxycinnamate or butylmethoxydibenzoylmethane as a sunscreen.

The present invention relates to a cosmetic composition comprising a barley or colored barley extract, and absorbs ultraviolet rays in the ultraviolet A and ultraviolet B region and has a sunscreen effect, to mitigate the phenomenon that the conventional sunscreen is poor absorption by UV exposure or It can be used as a cosmetic composition for improving sun protection and / or light stability by reducing the light stabilization effect is excellent.

1 is a block diagram of the production of barley extract according to an embodiment of the present invention.
2 is a UV spectrum of butylmethoxydibenzoylmethane, a UV-A blocker.
3 is the UV spectrum of ethylhexylmethoxycinnamate, a UV-B blocker.
4 is a UV spectrum of barley extract of Preparation Example 1.
5 is a UV spectrum of the dark vein extract of Preparation Example 2. FIG.
6 is a UV spectrum of the green vein extract of Preparation Example 3.
7 is a UV spectrum of the vein extract of Preparation Example 4.
8 is a UV spectrum of the oat extract of Preparation Example 5.

Hereinafter, the Example of this invention is demonstrated in detail. However, the following examples are merely to illustrate the present invention, and the content of the present invention is not limited to the following examples.

Example 1 Preparation and Yield of Barley and Colored Barley Extract

Barley varieties were prepared and extracts were prepared as follows in order to confirm the UV-blocking effect of barley and colored barley extract and the effect of lowering the light stability of the sunscreen.

As the colored barley, black barley rice (black bark), Kang Hocheong (cheongmac), amethyst wax barley rice (jamac), white barley barley rice (yellow bark) were used.

Barley used domestic products produced in 2017 at Deokryong Farming Co., Ltd. Black barley rice (black wheat) was made from Jeju produced in 2016 at Yonghyeon Farm. Domestic production was used.

Preparation Example 1. Preparation of Barley Extract

Barley was prepared at a weight of about 200 g and ground to 1/10 the size of barley. The barley powder was dispersed in 70% aqueous ethanol and extracted for 48 hours. After extraction, the barley powder was filtered through Whatman Filter Paper Grade 2 to remove impurities.

Preparation Example 2. Preparation of Dark Wheat Extract

Black vein extract was prepared in the same manner as in Preparation Example 1.

Preparation Example 3. Preparation of Green Wheat Extract

Fresh vein extract was prepared in the same manner as in Preparation Example 1.

Preparation Example 4. Preparation of Wheat Extract

A vein extract was prepared in the same manner as in Preparation Example 1.

Preparation Example 5. Preparation of Rhubarb Extract

A rhubarb extract was prepared in the same manner as in Preparation Example 1.

After extracting the solvents of Preparation Examples 1 to 5 by evaporation, the weight of the powder remaining was measured to calculate the extraction yield for each barley variety.

Extraction Yield by Barley Varieties kind Raw material (g) Extract (g) yield(%) barley 202.4 6.30 3.11 Dark 201.3 5.97 2.97 Cheongmac 201.8 6.09 3.02 Jamack 201.8 6.31 3.13 Veins 200.5 5.60 3.02

Table 1 is a result of measuring the extraction yield by the weight of 70% ethanol aqueous extract powder compared to the raw material according to the varieties of barley. The extraction yield was 3.13 to 2.97%, and it was confirmed that there was no significant difference in the extraction yield according to the variety.

Example 2 Measurement of UV Absorbance by Sunscreen and Barley Extract

Example 2-1. UV absorbance measurement of existing sunscreen

Butyl Methoxydibenzoylmethane (BMDM), a typical UV-A blocker, and UV-B blocker, Ethylhexyl Methoxycinnamate (EHMC), were diluted in methanol at a concentration of 0.001%, followed by UV spectrophotometer ( Absorbance was measured in a wavelength range of 200 to 500 nm using a spectrophotometer.

2 is a result of measuring the UV absorbance of butylmethoxydibenzoylmethane, a UV-A blocker, Figure 3 is a result of measuring the UV absorbance of ethhexylmethoxycinnamate, a UV-B blocker.

Butylmethoxydibenzoylmethane has a maximum absorbance of 1.099 at 356.4 nm, which is a UV-A blocking region (320-400 nm), and an ethylhexylmethoxycinnamate at 309.4 nm, which is a UV-B blocking region (280-320 nm). It was confirmed that it had a maximum absorbance of 0.893.

Example 2-2. UV Absorbance Measurement of Purified Water Extract of Barley

Except for using purified water as the extraction solvent in Preparation Examples 1 to 5 to extract each barley (barley, dark wheat, green wheat, wheat, yellow wheat) in the same manner to prepare Comparative Preparation Examples 1 to 5, Comparative Preparation Examples 1 to Absorption spectrum was measured in a wavelength range of 250 to 500 nm.

Absorbance According to the Wavelength of Barley Extract Extracted with Purified Water Wavelength (nm) Comparative Production Example 1
Barley_H ₂ O Comparative Production Example 2
Dark _H ₂ O Comparative Production Example 3
Cheongmac_H ₂ O Comparative Production Example 4
Magnetism_H ₂ O Comparative Production Example 5
Yellow vein_H ₂ O 272 1.227 1.223 1.631 1.703 1.254 273 1.224 1.211 1.612 1.69 1.25 274 1.218 1.193 1.596 1.678 1.241 275 1.212 1.176 1.576 1.67 1.233 290 0.850 0.757 1.022 1.121 0.786 310 0.419 0.390 0.608 0.595 0.350 340 0.245 0.232 0.465 0.326 0.213 357 0.154 0.167 0.449 0.211 0.130

Table 2 shows the results obtained by measuring the absorbance according to the wavelength of the purified water extract of barley, dark wheat, blue wheat, wheat, and yellow wheat of Comparative Production Examples 1 to 5. UV-A (320-400nm) in the area of 340nm was measured from 0.213 to 0.465, 357nm from 0.130 to .0449 were all confirmed that there is a certain amount of absorbance of more than UV-A, UV-B ( 280 to 320nm) was measured at 0.757 to 1.121 at 290nm, confirming that there is a blocking effect of UV-B.

Example 2-3. UV Absorbance Measurement of 70% Ethanol Barley Extract

In order to evaluate the UV absorption ability of the extract according to the barley varieties, the absorption spectrum was measured in the wavelength range of 250 to 500nm of Preparation Examples 1-5.

Absorbance According to Wavelength of 70% Ethanol Barley Extract Wavelength (nm) Preparation Example 1
Barley Extract Preparation Example 2
Bleak Extract Preparation Example 3
Green Extract Preparation Example 4
Wheat Extract Preparation Example 5
Rhubarb Extract 272 2.087 2.348 2.276 2.138 2.244 273 2.095 2.335 2.294 2.156 2.255 (max) 274 2.104 2.347 (max) 2.286 2.165 (max) 2.244 275 2.105 (max) 2.328 2.307 (max) 2.159 2.254 276 2.096 2.329 2.294 2.143 2.249 290 1.468 1.672 1.620 1.487 1.521 310 0.624 0.697 0.765 0.848 0.640 340 0.384 0.483 0.594 0.629 0.442 357 0.379 0.290 0.422 0.234 0.199

Table 3 shows the results obtained by measuring the absorbance according to the wavelength of 70% ethanol aqueous solution extract of barley, dark wheat, blue wheat, wheat and yellow wheat in Preparation Examples 1 to 5.

It was confirmed that the ethanol barley extracts of Preparation Examples 1 to 5 had a maximum absorbance at 273 to 275 nm, and had absorbances of 1.468 to 1.672 at 290 nm in the UV-B region, and the purified water barley extract of Comparative Preparation Examples 1 to 5 It was confirmed that the blocking effect of UV-B is more excellent, it was measured as 0.384 to 0.629 in the UV-A region, 0.384 to 0.629, 0.199 to 0.422 in the 357 nm, all lower than the UV-B region, but all compared to the comparative production of each barley varieties The high absorbance showed that the blocking effect of UV-A was also superior to purified water extract.

<Example 3> Light stabilization effect of barley extract by UV absorbance measurement

In order to confirm the photostabilization effect on the sunscreen of the alcohol extract of barley or colored barley, the barley or colored barley extract of Preparation Examples 1 to 5 were mixed with the sunscreen to evaluate the change of UV absorbance before and after UV exposure. The sunscreen used ethhexylmethoxycinnamate which is the most widely used chemical sunscreen.

As a sample, 3 ml of the mixed solution of the sunscreen 0.0005% by weight of ethylhexyl methoxycinnamate and the barley or colored barley extracts of Preparation Examples 1 to 5 were placed in a sealable quench cell for measurement of initial UV absorbance. Thereafter, the quarts cell containing the sample solution was placed in a UV irradiation apparatus and irradiated with UV of 4 J / cm 2, the UV absorbance was measured again to obtain a reduced percentage of absorbance (%), which was determined as S1.

As a comparative group, 3 ml of a solution of sunscreen ethylhexyl methoxycinnamate dissolved in methanol at a concentration of 0.0005% by weight was placed in a sealable quench cell, and the initial UV absorbance was measured. The Tscell was placed in a UV irradiation apparatus and irradiated with UV of 4 J / cm 2, and the UV absorbance was measured again to obtain a reduced percentage of absorbance (%) to obtain a C1 value. The barley extracts obtained according to the above Preparation Examples 1 to 5 were measured for absorbance before and after UV irradiation under the same conditions as the above-mentioned hexahexylmethoxycinnamate, and the reduced percentage of absorbance (%) was obtained as the C2 value.

The light stabilization effect (%) of the barley extract on the sunscreen ethylhexylmethoxycinnamate is shown in Table 4 by numerical calculation using the following equation (1).

Photo stabilization effect of 70% ethanol barley extract (%) division Light stabilization effect (%) Barley Extract 47.3 Bleak Extract 72.6 Green Extract 75.1 Wheat Extract 68.4 Rhubarb Extract 54.5

The barley extract showed a good light stabilization effect of 47.3 to 75.1% as a whole, in particular, the dark and green malt extract was 72.6%, 75.1%, it was confirmed that the light stabilization effect is superior to the barley, barley and oat extract.

<Example 4> Light stabilization effect of barley extract by measuring the SPF

In Example 3, it was confirmed that the absorbance inhibition by UV exposure of the conventional sunscreen agents of Preparation Examples 1 to 5 was alleviated, and the highest absorbance was measured at 290 nm, which is the UV-B region, in Example 2 Using dark vein extract confirmed the excellent photo-stabilization effect of 72.6% in Example 3, the composition of the lotion formulation was prepared as shown in Table 5, and the reduction of SPF before and after UV irradiation was measured. At this time, the unit of component content is weight%.

Cosmetic composition of lotion formulation containing barley extract of the present invention number ingredient Formulation Example 1 Formulation Comparative Example 1 One Cetearyl Alcohol 1.2 1.2 2 Glyceryl Stearate 0.4 0.4 3 Polysorbate 60 0.9 0.9 4 Sorbitan sesquioleate 0.3 0.3 5 Liquid paraffin 5.0 5.0 6 Squalane 5.0 5.0 7 Macadamia Nut Oil 4.0 4.0 8 Ethylhexylmethoxycinnamate 2.5 2.5 9 Butylmethoxydibenzoylmethane 0.5 0.5 10 glycerin 4.0 4.0 11 Carbomer 0.12 0.12 12 Xanthan Gum 0.03 0.03 13 antiseptic a very small amount a very small amount 14 Purified water Remaining amount Remaining amount 15 Dark Wheat Extract Powder * 1.0 -

The dark vein extract powder of Table 5 is a powder type extract from which the solvent is removed from the dark vein extract according to Preparation Example 2.

Of the components identified by each component number in Table 5, components 1 to 9 were first dissolved by heating at a temperature of 70 ° C., and then components 10 to 13 were dissolved and dispersed in component 14 and emulsified in heating to 70 ° C. After cooling to 56 ° C., component 15 was added, stirred, and cooled to room temperature to prepare Formulation Example 1.

Formulation Comparative Example 1 was prepared by the same ingredients and methods as in Formulation Example 1, except for the dark wheat extract powder, which is component 15.

The lotion prepared in Formulation Example 1 and Formulation Comparative Example 1 was used to evaluate the effect of reducing SPF due to UV exposure.

UV exposure of Formulation Example 1 and Formulation Comparative Example 1 using an in vitro SFP measurement method using a SFP analyzer (SPF 290, the Optometrics Group, USA) as a method for evaluating the light stabilization of barley extract in the cosmetic composition according to the present invention SPF was evaluated before and after.

First, the cosmetic composition of Formulation Comparative Example 1 was evenly applied to the in vitro SPF measuring tape in an amount of 2 mg / cm 2, and the SPF analyzer was evaluated to evaluate the initial SPF value. Was exposed to UV at 4 J / cm 2 using a UV irradiator and SPF was evaluated again to obtain a SPF reduction rate CS value before and after UV irradiation of the cosmetic formulation of Comparative Formulation Example 1.

In addition, SPF reduction rate SS before and after UV irradiation of Formulation Comparative Example 1 cosmetics was evaluated by evaluating SPF before and after UV exposure of the cosmetic formulation of Formulation Example 1 containing the dark vein extract in the same manner as the test conditions of Formulation Comparative Example 1.

The light stabilizing effect of barley extract in the cosmetic composition according to the present invention is shown in Table 6 by calculating the numerical value using the following equation (2).

Light stabilization effect of SPF reduction of cosmetic composition containing dark vein extract (%) division SPF value before UV irradiation SPF value after UV irradiation % SPF Reduction Formulation Example 1 12.0 11.2 6.7 Formulation Comparative Example 1 11.9 8.4 29.4 Light stabilization effect (%) 77.2

Formulation Example 1 using only hexahexylmethoxycinnamate and butylmethoxydibenzoylmethane, which are commonly used sunscreens, decreased SPF value by 29.4% after UV irradiation. When the dark vein extract was contained as a sunscreen material, it was confirmed that the compound had excellent photostabilization effect of 77.2% compared to Formulation Comparative Example 1 containing only hexahexylmethoxycinnamate and butylmethoxydibenzoylmethane.

Claims (5)

Includes barley or colored barley extract,
The colored barley is one or more selected from the group consisting of black barley rice (black bark), Kang Hocheong (cheek bark), amethyst wax barley rice (jamac) and white barley barley rice (yellow barley), cosmetic composition for improving the light stability of the sunscreen. delete The method of claim 1,
The extract is water, an alcohol having 1 to 4 carbon atoms or a mixture thereof is extracted, cosmetic composition for improving the light stability of the sunscreen. The method of claim 1,
The composition is to use at the same time for sunscreen, cosmetic composition for improving the light stability of the sunscreen. The method of claim 1,
The cosmetic composition further comprises ethyl hexyl methoxycinnamate or butyl methoxydibenzoyl methane, cosmetic composition for improving the light stability of the sunscreen.

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