KR102290978B1 - Cosmetics compositions for hair strengthening - Google Patents

Abstract

The present invention relates to a cosmetic composition for strengthening hair.
The cosmetic composition for strengthening hair according to the present invention contains the rhododendron extract as an active ingredient, thereby increasing the thickness of the hair and making it into voluminous hair.

Description

Cosmetic compositions for hair strengthening}

The present invention relates to a cosmetic composition for strengthening hair.

Honggyeongcheon is a perennial herb that grows in the crevices of rocks near the tops of Mt. Baekdu, Mt. Potae, and Mt. Nangnim in the northern part of Korea. It is also called rhododendron flower, and the starting material for extraction is obtained by drying the rhizomes, roots and outposts sufficiently in the shade and then shredding them with a cutter or pulverizing them with a grinder. The pulverized product or the chopped product thus obtained is extracted using water or a mixture of at least one selected from organic solvents such as ethanol, water/ethanol mixture, propylene glycol, butylene glycol, ethyl acetate and diethyl ether as an extraction solvent, and then the solid is extracted. It is removed by filtration and concentrated under reduced pressure with a concentrator or nitrogen gas, or a freeze-drying method is used to obtain a dried extract. Rhodiola is known to have pharmacological effects such as acting as a nourishing tonic to increase mental vitality, increasing resistance to oxygen deficiency, anti-toxic action, anti-aging, diabetes, anemia, hepatitis, hypotension, headache, forgetfulness, insomnia, etc. Aspartic acid, Serine, Glutamic acid, Glysine, along with 4 main ingredients such as salidroside, Rosavin, Rosin, and Rosarin. It is reported that there are about 20 kinds of amino acids and 18 kinds of trace elements such as alanine, lysine, and arginine. In addition, a patent [Patent Document 1] relating to an astringent cosmetic composition containing a rhododendron extract has been applied, but the efficacy of the cosmetic for strengthening hair thickness has not been identified.

Recently, in modern people suffering from excessive stress, hair loss occurs frequently regardless of age and gender, and people's interest in it has increased. Hair thinning is often mentioned as an initial symptom of such hair loss, and in particular, not only genetic factors or aging due to age, but also when the protein inside the hair is eluted and porous during repeated chemical treatment such as perm or dyeing, the hair becomes porous. It is known that, along with problems such as roughness, loss of luster, and softness, hair breaks easily or split ends, hair thins easily, loses elasticity, becomes lifeless and sagging, loses volume, and eventually leads to hair loss. To solve this problem, various volume shampoos and treatments are being released, but most of them provide only temporary volume by attaching chemicals to the hair. Although products have been released, the actual increase in thickness obtained when caffeine is applied to the hair was at a very insignificant level, as can be seen from Table 1 below. At the same time, as consumers' awareness of chemicals is getting worse and worse, research using natural plant extracts that actually increase the thickness of hair physically/chemically and are safe for the human body is needed.

division Average hair count (100) Average hair cross-sectional area change rate (%) Standard Deviation Short axis (㎛) Long axis (㎛) Cross-sectional area (㎛ ² ) Caffeine before processing 61.48 80.34 3990.90 0.00 - after processing 61.73 80.75 4026.83 0.90 0.36 SLES 15%
after washing 61.56 80.63 4012.67 0.55 0.48

Domestic Patent Publication No. 1999-0051310

Therefore, the present inventors studied various plant extracts to search for a natural substance that is safe for skin that can increase the thickness of hair. Then, it was thought that binding to hair protein would also be possible, and the present invention was completed by confirming that the hair thickness strengthening effect of the rhododendron extract was excellent.

Therefore, in consideration of the problems of the prior art that provides a temporary volume feeling using chemicals, the present invention provides a cosmetic composition for hair strengthening, which contains an extract of a natural plant safe for the human body as an active ingredient while having an excellent hair thickness strengthening effect. aim to

As a means for solving the above problems, the present invention provides a cosmetic composition for strengthening hair comprising a rhododendron extract as an active ingredient.

The cosmetic composition for hair strengthening according to the present invention contains a rhododendron extract as an active ingredient, and thus provides a hair strengthening effect by restoring the thickness of thinned hair that has been physically and chemically damaged.

The present invention relates to a cosmetic composition for strengthening hair comprising a rhododendron extract as an active ingredient.

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

In the present invention, 'hair strengthening' is to give the property of strengthening the hair elastically by thickening damaged or thinning hair, and beautify the hair, increase the attractiveness, change the appearance, or the hair In order to keep it healthy, it can be applied to the hair, spread, or used in a similar way. As the hair strengthening effect, for example, an effect such as improvement of hair thickness may be exhibited.

The rhododendron extract used in the present invention may be extracted by a method known in the art, and the method is not particularly limited. In general, it is possible to use an extract obtained by extracting Red Gyeoncheon with at least one selected from the group consisting of water and an organic solvent, and the organic solvent is a lower alcohol having 1 to 4 carbon atoms, 1,3-butylene glycol, methylene chloride and It may be at least one selected from the group consisting of ethyl acetate.

The honggyeongcheon extract may be used in an amount of 0.0001 to 50% by weight, 0.001 to 30% by weight, or 0.01 to 15% by weight based on the total composition. If the content thereof is less than 0.0001% by weight, there is a problem that a continuous hair strengthening effect is difficult to appear, and if it exceeds 50% by weight, it is difficult to prepare the composition in an appropriate formulation or to secure long-term stability.

There is no particular limitation in formulating the hair cosmetic composition of the present invention, but it has formulations such as shampoo, conditioner, conditioner, tonic, essence, serum, treatment, lotion, wax, gel, spray, mousse, mist or cream. It may be a cosmetic composition.

In addition, in each formulation, other components other than the above essential components can be suitably selected and formulated by those skilled in the art without difficulty depending on the type or purpose of use of other external preparations.

For example, the shampoo composition for hair strengthening provided in the present invention may be used by adding an appropriate component according to the type. Specifically, in the shampoo composition consisting of a synthetic surfactant, which is a conventional cleaning component, a preservative, a thickener and a viscosity modifier, a pH adjuster, a fragrance, a dye, a hair conditioning agent, and water, the synthetic surfactant used in the present invention is anionic, Any of amphoteric and nonionic surfactants can be selected, and may be used alone or in combination in the hair cosmetic composition of the present invention. In addition, the synthetic surfactant may be contained in an amount of 10 to 50% by weight, preferably 10 to 30% by weight, based on the total weight of the composition.

The synthetic anionic surfactant may use alkyl and alkyl ether sulfates, and specific examples thereof include sodium lauryl sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, sodium polyoxyethylene lauryl sulfate, polyoxyethylene lauryl ammonium sulfate, etc. can be heard

The synthetic amphoteric surfactant may use alkyl betaine and alkyl amidopropyl betaine, and specific examples thereof include cocodimethyl carboxymethyl betaine, lauryldimethyl carboxymethyl betaine, lauryldimethyl alpha-carboxyethyl betaine, and cetyl. dimethyl carboxymethyl betaine, cocamido propyl betaine, and the like.

The synthetic nonionic surfactant can use alkanol amide and amine oxide, and specific examples include lauryl diethyl amine oxide, palm oil alkyldimethyl amine oxide, lauric acid diethanolamide, coconut oil fatty acid diethanolamide, coconut oil fatty acid mono Ethanolamide etc. are mentioned.

As the preservative, at least one selected from the group consisting of methyl paraoxybenzoate, propyl paraoxybenzoate, sodium benzoate, methylchloroisothiazolinone, methylisothiazolinone and sodium benzoate may be mixed and used together.

As the viscosity modifier, amide-based nonionic surfactants such as cocamide ME (CME), cocamide DA (CDE), sodium chloride and the like may be used.

As the pH adjusting agent, sodium phosphate, disodium phosphate, citric acid, sodium citrate, and the like may be used.

As a hair conditioning agent, it is recommended to use dimethicone base and cationic polymer alone or in a mixture of two or more.

In addition, the conditioner composition for hair strengthening provided in the present invention may be used by adding an appropriate component according to the type thereof. Specifically, as conventional conditioner components, tertiary amidoamine and quaternary ammonium compounds, high melting point compounds, silicone compounds as cationic surfactants and optional ingredients may contain preservatives, thickeners, viscosity regulators, pH regulators, fragrances, etc. have.

The quaternary ammonium compound as the cationic surfactant in the hair conditioner composition described above is alkyl (14-22) trimethyl ammonium chloride, dialkyl (14-22) dimethyl ammonium chloride, hydrogenated tallow alkyl trimethyl ammonium chloride, ditallow alkyl dimethyl ammonium chloride and the like, tertiary amidoamines include, for example, cocamidopropyl dimethylamine, stearamidopropyl dimethylamine, beheniramidopropyl dimethylamine, oleamidopropyl dimethylamine, isostearamidopropyl dimethyl amines and the like. In addition, the amines are preferably used after neutralizing with an acid such as L-glutamic acid, lactic acid, hydrochloric acid, malic acid, succinic acid, acetic acid, fumaric acid, citric acid, or EDTA. These cationic surfactants are used alone or in mixture of two or more, in an amount of 1 to 30% by weight, preferably 5 to 20% by weight, based on the total weight of the composition.

The high melting point compound is a compound consisting of fatty alcohol-based, fatty acid-based, fatty alcohol derivative, hydrocarbon-based, etc. and mixtures thereof, for example, cetyl alcohol, stearyl alcohol, cetostearyl alcohol, etc., and the total weight of the conditioner composition It is preferable to use 1 to 10% by weight with respect to

The silicone compound includes polyalkylsiloxane-based, polyarylsiloxane-based, polyalkylarylsiloxane-based, polyether siloxane copolymers and mixtures thereof, cyclopolysiloxanes and suitable alkylamino-substituted compounds, amodimethicone, etc. It is preferable to use 1 to 10% by weight based on the weight.

As the preservative, at least one selected from the group consisting of methyl paraoxybenzoate, propyl paraoxybenzoate, sodium benzoate, methylchloroisothiazolinone, methylisothiazolinone and sodium benzoate may be mixed and used together.

As the pH adjusting agent, sodium phosphate, disodium phosphate, citric acid, sodium citrate, and the like may be used.

Hereinafter, the present invention will be described in detail by the following examples. However, the following examples only illustrate the present invention, and the content of the present invention is not limited to the following examples.

manufacturing example One: Hong Kyung-cheon extract preparation

After drying the roots of rhododendron sufficiently in the shade, they were minced with a cutter and pulverized with a grinder to obtain a starting material for extraction. After extracting 100 g of the pulverized / minced material with a mixed solution of water / ethanol (3/7 v / v), using an evaporator at 70 ° C. for 5 hours (3 to 6 hours) under reduced pressure (80 to 100 mbar) and extracted A dried product (dry yield: 14.3%) was obtained.

manufacturing example 2: Hong Kyung-cheon extract preparation

The dried honggyeongcheon extract treated in Preparation Example 1 was used as a solute, and a solution obtained by mixing ethanol and distilled water in a weight ratio of 1:1 was used as a solvent and mixed, and sonication treatment was performed for more stable mixing for 1 hour. and the final concentration of the solute relative to the total solution was prepared at 5% (w/w).

Example One: Hong Kyung-cheon Extract hair thickness increase effect

It was confirmed that the Honggyeongcheon extract of Preparation Example 2 had an effect of increasing hair thickness. In the experiment, the rate of change in hair thickness was calculated using a Laser Scan Micrometer (Mitutoyo, LSM 3100, Japan) after the extract was applied to the damaged hair. After storing 10 strands of hair in a constant temperature and humidity room for at least 12 hours, using LSM, the long/short hair length before treatment was measured and converted into Equation 1 below to calculate the cross-sectional area.

[Equation 1]

Cross-sectional area (μm ² ) =

[Equation 2]

Average cross-sectional area change rate (%) =

After placing 10 strands of hair before treatment on an aluminum plate, 2 ml of the rhododendron extract of Preparation Example 2 was sprayed, waiting for 5 minutes, washing the hair under running water for 1 minute, and drying the hair for 30 seconds using a hair dryer. After the dry hair was sufficiently stored in a constant temperature and humidity room for 12 hours or more, the length of the long and short axis of the hair was measured after treatment using LSM, and the cross-sectional area was calculated by converting it to Equation 1 above.

In order to exclude the effect of the extract simply adsorbed to the hair, after washing with a 15% solution of sodium lauryl ether sulfate, the dry hair was measured for the length of the long and short axis using LSM and expressed by Equation 1 above. The converted cross-sectional area and the average increase/decrease rate of the cross-sectional area converted by Equation 2 are shown in Table 2 below.

division average hair count
(100 pieces - 10 sets of 10 pieces) Average hair cross-sectional area change rate (%) Standard Deviation Short axis (㎛) Long axis (㎛) Cross-sectional area (㎛ ² ) ethanol before processing 67.45 93.60 5039.99 0.00 - after processing 67.77 93.64 5066.94 0.53 0.66 Hong Kyung-cheon
extract before processing 53.63 77.61 3269.00 0.00 - after processing 56.21 79.76 3521.18 7.71 1.67 SLES 15%
after washing 55.67 78.83 3446.69 5.44 1.30

As can be seen from Table 2 above, it was confirmed that ethanol used as a solvent for extracting rhododendron had little effect on the thickness of the hair, on the other hand, when compared with before treatment in the hair treated with the rhododendron extract, 5 to 6 The effect of increasing the hair cross-sectional area at the % level was confirmed. It is possible to manufacture cosmetics for strengthening hair that have the effect of increasing the thickness of hair using the rhododendron extract.

Formulation example One

A hair shampoo was prepared in a conventional manner according to the prescription in Table 3 below.

Formulation example 2

A hair lotion was prepared in a conventional manner according to the prescription in Table 4 below.

Formulation example 3

A hair rinse was prepared in a conventional manner according to the prescription in Table 5 below.

Claims (6)

A cosmetic composition for strengthening hair thickness comprising Rhodiola rosea extract as an active ingredient.
The method of claim 1,
The honggyeongcheon extract is included in an amount of 0.0001 to 50% by weight based on the total composition, a cosmetic composition for strengthening hair thickness.
The method of claim 1,
The honggyeongcheon extract is an extract obtained by extracting honggyeongcheon with one or more selected from the group consisting of water and an organic solvent, a cosmetic composition for strengthening hair thickness.
The method of claim 1,
The organic solvent is _{at least one selected from the group consisting of C 1} to C ₄ alcohol, 1,3-butylene glycol, methylene chloride and ethyl acetate; a cosmetic composition for strengthening hair thickness.
The method of claim 1,
A cosmetic composition for strengthening hair thickness formulated in shampoo, conditioner, conditioner, tonic, essence, serum, treatment, lotion, wax, gel, spray, mousse, mist or cream. delete