KR102405047B1 - Composition for hair permanent wave and hair-straight perming comprising specific compounds - Google Patents

Abstract

The present specification relates to a composition for permanent wave and straightening containing a specific compound. When the composition in the present specification is used, it is possible to form stable and elastic hair waves and permanent straights within a short time, as well as to damage hair and scalp. It can also relieve irritation significantly compared to existing products.

Description

Composition for permanent wave and straightening comprising a specific compound {COMPOSITION FOR HAIR PERMANENT WAVE AND HAIR-STRAIGHT PERMING COMPRISING SPECIFIC COMPOUNDS}

The present specification relates to a composition for permanent wave and straightening comprising a specific compound.

The principle of permanent wave and straightening on the hair is closely related to the structure and properties of the hair. Hair is composed of the epidermis, cortex, and medulla from the outermost layer. The keratin of hair is linked by a polypeptide composed of various amino acids, and between the polypeptide and the polypeptide, it is made of a high molecular material with side chains such as cystine bonds, salt bonds, and hydrogen bonds, and has a higher content of sulfur than other proteins. .

Because hair is composed of keratin with this structure, it has elasticity and thus has the property of returning to its original state even when bent. The principle of permanent wave and permanent straightening is to form a desired wave or straighten the wave by recombining it to a new position after temporarily losing the elasticity of the hair by cutting the side chain.

According to this principle, the products of the permanent wavy and straightening agents composed of the first agent and the second agent are most widely used. In general, the cystine bond in hair is reduced with a reducing agent comprising thioglycolic acid, a salt thereof, an ester thereof, cysteine, a salt thereof, or an acetyl derivative thereof. Here, by the reducing action of the first agent with an oxidizing second agent containing hydrogen peroxide or sodium bromate, the once-cleaved side chain bonds are recombined to a new site to form wavy and straight hair. Alkaline agents, penetrants, stabilizers, wetting agents, wool agents, colorants, emulsifiers, fragrances, etc. are used to increase their effectiveness and usability.

These permanent waving and straightener formulations are performed in harsh environments such as reducing cleavage of the hair keratin bonds by reducing agents and oxidizing agents, oxidizing agent binding, high-temperature heating under strong alkali, and double exposure to reducing agents and oxidizing agents. will entail damage.

In addition, there is a problem such as irritation of the scalp due to pH and chemical action, and a bad odor due to residual substances after the procedure.

Republic of Korea Patent Registration No. 10-1368829 (2014.02.24)

An object of the present specification is to provide a composition for a permanent wave and straightener in which hair damage and irritation to the scalp are alleviated, which forms a stable and elastic hair wave and permanent straightener within a short time.

In order to solve the above problems, the present specification provides a composition for permanent waves and straighteners comprising a reducing first agent and an oxidizing second agent, wherein the reducing first agent is tyrosol, hydroxytyrosol, N-acetyl It provides a composition for permanent waves and straighteners comprising at least one selected from the group consisting of -5-methoxytryptamine and propyl gallate in a predetermined weight part.

The composition in the present specification contains any one or more selected from the group consisting of tyrosol, hydroxytyrosol, N-acetyl-5-methoxytryptamine and propyl gallate in a certain weight part, and it is more significant than existing products on the market It forms a stable and elastic hair wave and perm straight in a very short time, and it can be of great help in hair care as it also significantly alleviates hair damage and irritation to the scalp.

1 shows the protein outflow of hair when the compositions of Examples and Comparative Examples are treated on the hair.

This specification provides excellent permanent waves and straighteners that not only form stable and elastic waves and straight perms in a remarkably quick time compared to existing products, but also improve wave and straight durability and minimize skin and hair damage after treatment. It is about the composition for you.

In general, permanent wave formulations consist of a first reducing agent containing a reducing agent, an alkali agent, a thickener, a sequestering agent, etc., and an oxidizing second agent containing an oxidizing agent, a thickener, a pH adjusting agent, and a metal sequestering agent.

In one aspect, the present invention comprises at least one selected from the group consisting of tyrosol, hydroxytyrosol, N-acetyl-5-methoxytryptamine and propyl gallate in a certain weight part, a certain weight ratio, or a certain weight% is a composition for permanent waves and straighteners.

As an embodiment, the composition may be a composition for permanent waves and straighteners containing 3 to 6 parts by weight of tyrosol. In addition, the composition may be a composition for permanent waves and straighteners containing 3 to 6 parts by weight of hydroxytyrosol. In another aspect, the composition may be a composition for permanent waves and straighteners comprising 2 to 4 parts by weight of N-acetyl-5-methoxytryptamine. In another aspect, the composition may be a composition for permanent waves and straighteners comprising 2 to 5 parts by weight of propyl gallate.

As another embodiment, the composition may be a composition for permanent waves and straighteners comprising a reducing first agent and a second oxidizing agent, and a composition for permanent waves and straighteners comprising 3 to 6 parts by weight of tyrosol in the reducing first agent. . In addition, the composition may be a composition for permanent waves and straighteners comprising a first reducing agent and a second oxidizing agent, and a composition for permanent waves and straighteners comprising 3 to 6 parts by weight of hydroxytyrosol in the first reducing agent. . In another aspect, the composition is a composition for a permanent wave and straightener comprising a reducing first agent and a second oxidizing agent, and a permanent wave comprising 2 to 4 parts by weight of N-acetyl-5-methoxytryptamine in the reducing first agent. And it may be a composition for a straightener. In another aspect, the composition is a composition for permanent waves and straighteners comprising a reducing first agent and a second oxidizing agent, and may be a composition for permanent waves and straighteners comprising 2 to 5 parts by weight of propyl gallate in the reducing first agent. .

In another embodiment, the composition is a composition for permanent waves and straighteners comprising a first reducing agent and a second oxidizing agent, and 3 to 6 parts by weight of tyrosol and 3 to 6 parts by weight of hydroxytyrosol in the first reducing agent It may be a composition for permanent waves and straighteners comprising at least one selected from the group consisting of parts, 2 to 4 parts by weight of N-acetyl-5-methoxytryptamine, and 2 to 5 parts by weight of propyl gallate.

In another embodiment, the composition is a composition for permanent waves and straighteners comprising a reducing first agent and a second oxidizing agent, and 3 to 6 wt% of tyrosol and 3 to 6 wt% of hydroxytyrosol in the reducing first agent %, 2 to 4 wt% of N-acetyl-5-methoxytryptamine and 2 to 5 wt% of propyl gallate may be a composition for permanent waves and straighteners comprising at least one selected from the group consisting of.

In one aspect, the tyrosol is 3 parts by weight or more, 3.2 parts by weight or more, 3.4 parts by weight or more, 3.6 parts by weight or more, 3.8 parts by weight or more, 4 parts by weight or more, 4.2 parts by weight or more, 4.4 parts by weight or more, 4.6 parts by weight or more. parts by weight or more, 4.8 parts by weight or more, 5 parts by weight or more, 5.2 parts by weight or more, 5.4 parts by weight or more, 5.6 parts by weight or more, or 5.8 parts by weight or more. In another aspect, the tyrosol is 6 parts by weight or less, 5.8 parts by weight or less, 5.6 parts by weight or less, 5.4 parts by weight or less, 5.2 parts by weight or less, 5 parts by weight or less, 4.8 parts by weight or less, 4.6 parts by weight or less, 4.4 parts by weight or less. or less, 4.2 parts by weight or less, 4 parts by weight or less, 3.8 parts by weight or less, 3.6 parts by weight or less, 3.4 parts by weight or less, or 3.2 parts by weight or less.

In one aspect, the hydroxytyrosol is 3 parts by weight or more, 3.2 parts by weight or more, 3.4 parts by weight or more, 3.6 parts by weight or more, 3.8 parts by weight or more, 4 parts by weight or more, 4.2 parts by weight or more, 4.4 parts by weight or more. , 4.6 parts by weight or more, 4.8 parts by weight or more, 5 parts by weight or more, 5.2 parts by weight or more, 5.4 parts by weight or more, 5.6 parts by weight or more, or 5.8 parts by weight or more. In another aspect, the hydroxytyrosol is 6 parts by weight or less, 5.8 parts by weight or less, 5.6 parts by weight or less, 5.4 parts by weight or less, 5.2 parts by weight or less, 5 parts by weight or less, 4.8 parts by weight or less, 4.6 parts by weight or less; 4.4 parts by weight or less, 4.2 parts by weight or less, 4 parts by weight or less, 3.8 parts by weight or less, 3.6 parts by weight or less, 3.4 parts by weight or less, or 3.2 parts by weight or less.

In one aspect, the N-acetyl-5-methoxytryptamine is 2 parts by weight or more, 2.2 parts by weight or more, 2.4 parts by weight or more, 2.6 parts by weight or more, 2.8 parts by weight or more, 3 parts by weight or more, 3.2 parts by weight or more. , 3.4 parts by weight or more, 3.6 parts by weight or more, or 3.8 parts by weight or more. In another aspect, the N-acetyl-5-methoxytryptamine is 4 parts by weight or less, 3.8 parts by weight or less, 3.6 parts by weight or less, 3.4 parts by weight or less, 3.2 parts by weight or less, 3 parts by weight or less, 2.8 parts by weight or less, It may be 2.6 parts by weight or less, 2.4 parts by weight or less, or 2.2 parts by weight or less.

In one aspect, the propyl gallate 2 parts by weight or more, 2.2 parts by weight or more, 2.4 parts by weight or more, 2.6 parts by weight or more, 2.8 parts by weight or more, 3 parts by weight or more, 3.2 parts by weight or more, 3.4 parts by weight or more, 3.6 parts by weight or more or more, 3.8 parts by weight or more, 4 parts by weight or more, 4.2 parts by weight or more, 4.4 parts by weight or more, 4.6 parts by weight or more, or 4.8 parts by weight or more. In another aspect, the propyl gallate is 5 parts by weight or less, 4.8 parts by weight or less, 4.6 parts by weight or less, 4.4 parts by weight or less, 4.2 parts by weight or less, 4 parts by weight or less, 3.8 parts by weight or less, 3.6 parts by weight or less, 3.4 parts by weight or less or less, 3.2 parts by weight or less, 3 parts by weight or less, 2.8 parts by weight or less, 2.6 parts by weight or less, 2.4 parts by weight or less, or 2.2 parts by weight or less.

In one aspect, the present invention provides a composition for permanent waves and straighteners comprising a first reducing agent and a second oxidizing agent, wherein the first reducing agent is 3 to 6 parts by weight of tyrosol and 3 to 6 parts by weight of hydroxytyrosol may include.

In another aspect, the first reducing agent may include 2 to 4 parts by weight of N-acetyl-5-methoxytryptamine.

In another aspect, the first reducing agent may include 2 to 5 parts by weight of propyl gallate.

There is no particular limitation on the additional ingredients that may be contained in the composition other than the active ingredients disclosed herein, and typically a reducing agent, an alkali agent, a thickener, a fragrance, a surfactant, a hair protectant, a stabilizer, a moisturizing agent, a metal sequestrant, a colorant, an emulsifier , purified water, etc. In particular, the reducing agent may contain one or a mixture of two or more selected from among thioglycolic acid, thioglycolic acid salts, thioglycolic acid esters, cysteine, cysteine salts, and cysteine acetyl derivatives. Preferably, based on the total weight of the first agent composition, thioglycolic acids are 0.1 to 18.0% by weight, cysteines are 0.1 to 11.0% by weight, more preferably thioglycolic acids are 1.0 to 9.0% by weight, and cysteines are It is preferable to contain in the range of 3.0 to 9% by weight.

At this time, if the reducing agent contains less than 0.1 wt% of thioglycolic acids and less than 0.1 wt% of cysteines as a reducing agent in the first reducing agent for permanent waves and straighteners, there is a problem with curl and straightening due to low reducing power, and thioglycolic acids are 18.0 wt% , when it exceeds 11.0 wt% of cysteines, there is a problem of hair damage, which is not preferable.

And, as the alkali agent, at least one selected from aqueous ammonia, amino alcohols, basic amino acids, and carbonates is contained in an amount of 0.001 to 10.0% by weight based on the total weight of the first agent composition, so that the pH of the first agent is 6.5 to 9.5, preferably pH to be 7.0 to 8.0. If the pH of the first agent containing this alkali agent is less than 6.5, the hair does not swell and there is a problem with curl and straightening, and if the pH exceeds 9.5, the effect can be increased, but there is a problem in hair damage and scalp irritation.

In addition, the surfactant may be selected from polysorbate, sodium lauryl sulfate, ceteareth, steareth, and the like, and is preferably used in an amount of 0.1 to 5% by weight based on the total weight of the composition.

As the hair protectant, quaternary ammonium salts, polyquaterniums, etc. can be selected and used, and it is preferable to use 0.05 to 1 wt% based on the total weight of the composition.

The stabilizer may be selected from carbomers, celluloses, citric acid and salts thereof, phosphoric acid and salts thereof, and is preferably used in an amount of 0.1 to 3% by weight based on the total weight of the composition.

The moisturizing agent may be selected from glycerin, propylene glycol, urea, glycerin, butylene glycol, and the like, and is preferably used in an amount of 3 to 15% by weight based on the total weight of the composition.

Etidronic acid, sodium ethidronate, disodium EDI, tetrasodium EDI, etc. may be selected and used as the metal sequestering agent, and it is preferable to use 0.1 to 3% by weight based on the total weight of the composition. .

The first reducing agent for permanent waving and straightening can be used together with the oxidizing second agent commonly used in the art.

The oxidizing agent included in the present specification and used together with the reducing first agent may contain 0.1 to 20.0 wt% of at least one selected from hydrogen peroxide, sodium bromate, potassium bromate, and sodium perborate as an oxidizing agent. . Preferably, it may contain 0.1 to 9.0 wt% of hydrogen peroxide (35%), preferably 1.5 to 8.5 wt%. The oxidizing agent selected from sodium bromate, potassium bromate and sodium perborate may be contained in an amount of 2.0 to 20.0 wt%, preferably 5.0 to 10.0 wt%. When the oxidizing agent contains less than 0.1% by weight of hydrogen peroxide (35%) in the second agent and less than 2.0% by weight of an oxidizing agent selected from sodium bromate, potassium bromate, and sodium perborate, the oxidizing power is low, so there is a problem in fixing curls and straights If the hydrogen peroxide solution (35%) is 9.0 wt%, and the oxidizing agent selected from sodium bromate, potassium bromate, and sodium perborate exceeds 20.0 jungrang%, there is a problem of hair damage, which is not preferable. The pH adjuster may contain a pH adjuster selected from at least one selected from organic acids such as phosphoric acid, citric acid, ascorbic acid, and sodium phosphate.

The oxidizing agent described above may contain other components commonly contained in addition to the above-described compositional components, for example, fragrances, surfactants, hair protectants, penetrants, stabilizers, wetting agents, colorants, emulsifiers, and the like.

In addition, if necessary, components that can be used in the composition for permanent wave and straightener at a level that does not impair the purpose of the present specification may be appropriately selected and used by those skilled in the art.

In one aspect, the present invention provides a composition for a wave and straightener that significantly relieves or restores hair damage and scalp irritation as a cosmetic used in daily life, and exhibits a stable and high hair waving and straightening effect within a short period of time. There is this. As a result of preparing and using the composition for permanent wave and straightener with the composition as described above, it was confirmed that hair damage and scalp irritation were remarkably alleviated, and the effect of waving and straightening was remarkably superior to that of existing products.

Hereinafter, an aspect of the present invention will be described in detail with reference to Examples, Comparative Examples, Experimental Examples and Reference Examples. However, the following examples are only for illustrating one aspect of the present invention, and the scope of the present invention is not limited only to these examples.

[Examples 1 to 9 and Comparative Examples 1 to 5]

According to the components and contents shown in Table 1 below, reducing first agent compositions for permanent waves and straighteners were prepared. Comparative Example 1 has a composition almost similar to that of the general commercially available reducing agent for permanent wave and straightener.

division Composition of reducing first agent (wt%) Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 tyrosol 0 3-6 0 0 3-6 3-6 0 3-6 3-6 0 2.9 or less; or
6.1 or higher 0 0 0 hydroxytyrosol 0 0 3-6 0 0 3-6 3-6 3-6 3-6 0 0 2.9 or less or 6.1 or more 0 0 N-Acetyl-5-Methoxytriptamine 2-4 0 0 0 2-4 0 2-4 2-4 2-4 0 0 0 less than 2 or greater than 4 0 molten asset profile 0 0 0 2-5 0 0 0 0 2-5 0 0 0 0 less than 2 or more than 5 Hydroxyethyl Cellulose 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Polyquaternium-10 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Carbomer 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 glycerin 10 10 10 10 10 10 10 10 10 10 10 10 10 10 etidronic acid 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 propylene glycol 2 2 2 2 2 2 2 2 2 2 2 2 2 2 L-cysteine hydrochloride 7 7 7 7 7 7 7 7 7 7 7 7 7 7 Thioglycolic Acid (50%) 2 2 2 2 2 2 2 2 2 2 2 2 2 2 Element One One One One One One One One One One One One One One monoethanolamine 4.5 4.2 4.2 4.2 4.2 4.2 4.2 4.2 4.2 4.5 4.5 4.5 4.5 4.5 Polysorbate 20 One One One One One One One One One One One One One One flavoring 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Purified water To 100 To 100 To 100 To 100 To 100 To 100 To 100 To 100 To 100 To 100 To 100 To 100 To 100 To 100

[Reference Example] Preparation of second agent composition for oxidation for permanent wave and straightener

After using the first reducing agent for permanent wave and straightener according to an aspect of the present invention prepared in the above example and the reducing first agent of Comparative Example, the permanent wave and straightening effect must be fixed by using the second oxidizing agent, An oxidizing second agent composition was prepared with the composition shown in Table 2 below with reference to the second oxidizing agent for permanent wave and straightener commercially available in online open markets, etc.

division Oxidizing second agent composition (wt%) Reference Example 1 Reference Example 2 glycerin One One propylene glycol 2 2 etidronic acid 0.1 0.1 phosphoric acid 0.05 0.01 sodium phosphate 0.2 0.1 Polysorbate 80 One One flavoring agent 0.1 0.1 Hydrogen peroxide (35%) 6 0 sodium bromate 0 7 Purified water To 100 To 100

[Experimental Example 1] Comparison of Wave Forming Efficiency

Wave forming efficiency measurement was performed as follows by using a wave forming test apparatus by Kirby method for wave completeness (%).

The hair fixed on the pin rod was placed in a sheet containing the reducing agent solution of Examples and Comparative Examples and left in a constant temperature bath at 25° C. for 20 minutes. After leaving the device, take out the device from the sharet, wash the reducing agent 1 solution with running water, put the device into the sorbet containing the oxidizing agent 2 solution of Reference Example, and let it stand for 20 minutes in a thermostat at 25°C. After leaving the plastic appliance, take out the plastic device, wash it with running water, loosen the fixed hair, dry it, and naturally fix the hair with waves on a graduated glass plate to calculate the wave forming efficiency according to the following Equation 1 (decimal points are rounded off).

[Equation 1]

In Equation 1, a is the distance between the rods of both sides of the test device to which the hair bundle is fixed, b is the distance of 5 peaks of the hair on which the wave is formed, and c is the distance between the 5 peaks of the hair on which the wave is formed. is the distance of

[Experimental Example 2]: Wave retention (sustainability) test

The sweat solution prepared by adjusting the pH of the solution to 1 L with sodium hydroxide and purified water to 0.5 g of L-cysteine hydrochloride (monohydrate), 0.5 g of sodium chloride, and 5.0 g of dibasic sodium phosphate (12 hydrate) so that the volume becomes 1 L. Each of the hair bundle pieces in which the wave was formed in Experimental Example 1 was immersed in a test tube contained therein, and then left at a constant temperature of 45° C. for 1 hour. After taking it out of the test tube, washing with water, drying, and naturally fixing it on a graduated glass plate, calculating the wave efficiency using the wave forming efficiency equation of Equation 1, and calculating the wave continuity retention rate of Equation 2 below.

The results are shown in Table 3 (decimal points are rounded off).

[Equation 2]

[Experimental Example 3] Straight Formation Test

After the curly hair was wound and roughly dried, the first composition for permanent wave and straightener of Examples and Comparative Examples was applied, fixed to a straightening rod, and then left naturally for 20 minutes. After the rod was removed, the hair was sufficiently washed with water, the second composition of the reference example was applied, and then left naturally for about 20 minutes. After washing with water sufficiently, the hair condition before and after treatment with the composition was shown to 25 hair beauty experts to sensory evaluation of straightening ability. The evaluation criteria were evaluated by classifying the highest score from 10 (good) to the lowest score of 1 (bad).

The results are shown in Table 3 (decimal points are rounded off).

[Experimental Example 4] Hair damage test

Hair pieces 15-20 cm long were shampooed and dried with a towel. After uniformly applying the first composition for permanent wave and straightener of Examples and Comparative Examples to dry hair, wind it with a constant force on a rod and leave it for 20 minutes, then apply the composition of Reference Example uniformly and leave it for another 20 minutes did After leaving for 20 minutes, the rod was released, washed with running water, dried, and after treatment, hair pieces were combed by 15 hairdressing experts to sensory evaluation of the degree of hair damage. The evaluation criteria were evaluated by classifying the highest score from 10 (good, that is, less hair damage) to 1 (bad, severe hair damage).

The results are shown in Table 3 (decimal points are rounded off).

[Experimental Example 5] Protein leakage test

Hair pieces 15-20 cm long were shampooed and dried with a towel. After uniformly applying the first composition for permanent wave and straightener of Examples and Comparative Examples to dry hair, wind it with a constant force on a rod and leave it for 20 minutes, then apply the composition of Reference Example uniformly and leave it for another 20 minutes did After leaving the rod for 20 minutes, loosen the rod, wash it with running water, dry it, and after treatment, immerse 0.25 g of hair pieces in 50 mL of 2.5% NaOH solution for 90 minutes, filter it, and use the UV-Vis spectrophotometer to measure the filtrate. The amount of protein leaked from the calibration curve (Y=3.1X, where Y is optical density and X is the concentration of hydrolyzed hair) was evaluated by measuring at a wavelength of 340 nm.

The results are shown in Table 3.

[Experimental Example 6] Scalp irritation test

Wash the skin around the back of the ear with soap, etc., apply 20 g of the solvent composition for permanent wave and straightener of Examples and Comparative Examples in the size of a coin, and after 30 minutes, 20 g of the second agent composition of Reference Example is applied in the size of a coin After 30 minutes, the skin was washed with water, and the skin spots, red spots, black spots, swelling, and itching were compared. The test subjects were randomly sampled 10 men and women in their 20s and 60s, respectively, and the results of sensory evaluation by a dermatologist were averaged. The evaluation criteria were evaluated by classifying the highest point from 10 (good, that is, no scalp irritation) to 1 (bad, that is, very severe scalp irritation).

The results are shown in Table 3 (decimal points are rounded off).

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Wave Forming Efficiency (%) 76 76 77 60 85 84 85 85 91 56 54 53 56 55 Wave retention (%) 68 68 69 40 75 77 76 77 89 42 44 41 41 45 Straight Forming Ability Assessment 5 6 5 2 7 8 8 8 9 2 3 2 One 2 Hair Damage Assessment 6 5 6 2 8 7 7 8 9 One One One 2 2 Protein Leakage (%) 1.2 1.1 1.3 2.2 0.8 0.8 0.6 0.5 0.3 2.4 2.3 2.2 2.4 2.3 Scalp Irritation Assessment 5 4 5 One 7 8 7 8 9 One One 2 One One

As shown in the table above, the effects of wave forming efficiency, lasting maintenance rate, and straightening maintenance of the permanent solvent of the embodiment according to an aspect of the present invention are significantly higher than those of the comparative example, as well as hair damage prevention, protein leakage inhibitory effect, It was confirmed that the effect of preventing scalp irritation and the like was also significantly superior to that of the conventional product.

Claims (2)

A composition for permanent waves and straighteners comprising a first reducing agent and a second oxidizing agent, the composition comprising:
The reducing first agent is 3 to 6 parts by weight of tyrosol, 3 to 6 parts by weight of hydroxytyrosol, 2 to 4 parts by weight of N-acetyl-5-methoxytryptamine, 2 to 5 parts by weight of propyl gallate, L -Permanent wave and straightener composition comprising 7 wt% of cysteine hydrochloride and 4.2 to 4.5 wt% of ethanolamine. delete

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