JP2007291016A - Hair cosmetics - Google Patents

Abstract

The present invention provides a foamy two-component hair bleaching agent that does not cause color unevenness in the finish, is particularly useful for eliminating the color difference between the newly-developed part and the already-dyed part, is easy to apply to hair, and has a high conditioning effect. Or provision of a two-component hair dye.
SOLUTION: A two-component hair makeup comprising a first agent containing an alkaline agent, a second agent containing hydrogen peroxide, and a former container for discharging a mixture of the first and second agents in the form of foam. In the mixture, the following components (A) and (B):
(A) Nonionic surfactant 0.1 to 10% by weight
(B) Cationic surfactant 0.1 to 5% by weight
A two-component hair cosmetic composition comprising 1 to 100 in a weight ratio of component (A) to component (B) (content of component (A) / content of component (B)).
[Selection figure] None

Description

  The present invention relates to a two-component hair cosmetic that can be easily applied without unevenness on the hair by discharging a mixture of a two-component hair bleaching agent or a two-component hair dye in the form of foam.

  Conventionally, liquid or cream-like hair cosmetics such as hair bleaching agents and hair dyes have been widely used, but it is difficult to apply them uniformly to hair. In particular, skills such as blocking and a matching mirror are required for applying the root portion and the back of the hair, and a lot of time is required.

  Thus, it has been proposed to simplify the hair dyeing operation by discharging the agent in the form of a foam. For example, a two-agent aerosol type or a one-agent non-aerosol type is known. However, the two-component aerosol type is prone to decolorization and dyeing unevenness, metal pressure-resistant containers are oxidized and corroded by hydrogen peroxide, and the internal pressure of the pressure-resistant container rises excessively due to the decomposition of hydrogen peroxide. In addition, the one-agent non-aerosol type has a problem that it is difficult to leave for a long time after application or to repeat the treatment because the effect obtained by one treatment is poor. .

  On the other hand, there has been proposed one in which a two-component hair bleaching agent or a two-component hair dye is discharged in a foam form from a non-aerosol type former container (see Patent Document 1). This is because the liquid mixture of the first agent and the second agent is discharged from the former container in the form of foam, so that it can be applied to the hair without any unevenness and color unevenness does not occur in the finish. It is useful for eliminating the level difference.

JP 2004-339216 A

  An object of the present invention is to provide a foamy two-component hair bleaching agent or two-component hair dye that is more easily applied to hair and has a high conditioning effect while taking advantage of the features of Patent Document 1. .

  The inventors of the present invention include the nonionic surfactant and the cationic surfactant in a certain ratio in the mixed solution of the first agent and the second agent in the two-component non-aerosol type hair cosmetic, and thereby I found that I could achieve my objective.

That is, the present invention is a two-agent type comprising a first agent containing an alkali agent, a second agent containing hydrogen peroxide, and a former container for discharging a mixture of the first agent and the second agent in the form of foam. A hair cosmetic comprising the following components (A) and (B) in the mixture:
(A) Nonionic surfactant 0.1 to 10% by weight
(B) Cationic surfactant 0.1 to 5% by weight
And a two-component hair cosmetic composition having a weight ratio of component (A) to component (B) (content of component (A) / content of component (B)) of 1 to 100 is there.

  According to the present invention, a mixture of a two-component hair bleaching agent or a two-component hair dye is discharged in the form of a foam, can be applied evenly and easily to the hair, and exhibits a high conditioning effect. Further, the foam of the discharged mixed liquid does not cause dripping after being applied to the hair. Furthermore, it does not cause irritation to the scalp or scattering of the agent, and has sufficient decoloring power or dyeing power. Therefore, the hair cosmetic composition of the present invention can easily and comfortably achieve a uniform decolorization finish or hair dye finish with little unevenness.

  Moreover, the liquid mixture discharged in the form of foam by gas-liquid mixing using the former container easily reaches the base of the hair, but there is no accumulation of liquid and the like, and it spreads to the whole hair moderately thinly. Therefore, the root portion does not become extremely bright as in the case of conventional liquid or cream, and decoloring unevenness or staining unevenness due to uneven adhesion of the mixed liquid does not occur. Therefore, by applying the hair cosmetic composition of the present invention to the hair in the vicinity of the newly formed part such as the dividing line and the face line, the color difference between the newly formed part and the already dyed part can be eliminated, and a natural finish can be obtained. . Moreover, since a liquid mixture can be apply | coated to hair moderately thinly, the damage with respect to hair can be reduced.

(Alkaline agent)
As the alkaline agent contained in the first agent, for example, ammonia, alkanolamines such as monoethanolamine, sodium hydroxide, potassium hydroxide and the like can be used. Further, as a buffering agent, ammonium salts such as ammonium hydrogen carbonate and ammonium chloride, carbonates such as potassium carbonate and sodium hydrogen carbonate, and the like can be added as appropriate.

  The pH of the mixed solution of the first agent and the second agent in the two-component hair cosmetic of the present invention is preferably 8 to 11, particularly 9 to 11, and the amount of the alkaline agent used is the above-mentioned pH of the mixed solution. Is adjusted as appropriate.

〔hydrogen peroxide〕
The content of hydrogen peroxide in the second agent is preferably 1 to 9% by weight, particularly preferably 3 to 6% by weight. The content of hydrogen peroxide in the mixed solution of the first agent and the second agent is 1 to 6% by weight, in particular 2-5% by weight, is preferred. The pH of the second agent is preferably 2 to 6, particularly 2.5 to 4 in order to suppress decomposition of hydrogen peroxide.

[(A): Nonionic surfactant]
Examples of the nonionic surfactant of component (A) include alkyl polyglucoside, polyoxyalkylene alkyl ether, alkyl glyceryl ether and the like. As the alkyl polyglucoside, those having 8 to 18, more preferably 8 to 14, particularly 9 to 11 carbon atoms of the alkyl group are preferable, and those in which the alkyl group is linear are preferable. The average degree of polymerization of glucoside is 1 to 5, particularly preferably 1 to 2. As the polyoxyalkylene alkyl ether, those in which the alkyl group has 10 to 22 carbon atoms, particularly 12 to 18 carbon atoms, are preferred, and those in which the alkyl group is linear are preferred. Further, polyoxyethylene alkyl ether is more preferable, and those having an average addition mole number of oxyethylene group of 1 to 40, particularly 4 to 30 are preferable. As the alkyl glyceryl ether, those in which the alkyl group has 8 to 18 carbon atoms, particularly 8 to 12 carbon atoms are preferable, and those in which the alkyl group is branched are preferable.

  Two or more kinds of component (A) can be used in combination, and the content of the first agent and the second agent in the mixed solution is 0.1 to 10% by weight, preferably 0.5 to 7% by weight, particularly 1 to 2%. 5% by weight.

[(B): Cationic surfactant]
As the cationic surfactant of component (B), those used in hair rinses and softeners can be used, and for example, those represented by the following general formula (1) can be used.

[Wherein R ¹ , R ² , R ³ and R ⁴ independently represent a hydrocarbon group which may have a substituent, and at least one of R ¹ and R ² has 8 to 36 carbon atoms. And the remainder has 1 to 7 carbon atoms, or R ³ and R ⁴ together with the adjacent nitrogen atom may be substituted by an alkyl group having 1 to 4 carbon atoms. You may form the 5-7 membered ring which may contain a nitrogen atom, an oxygen atom, and a sulfur atom as a hetero atom other than an atom. A ⁻ represents an anion. ]

Examples of the hydrocarbon group include a linear or branched alkyl group, a linear or branched alkenyl group, an aryl group, an aralkyl group, and the like. Examples of the substituent include a hydroxy group, an alkoxy group, and an aryloxy group. , Epoxy group, amino group, mono- or dialkylamino group, trialkylammonium group, fatty acid amide group, fatty acid ester group and the like. Examples of the ring formed by R ³ and R ⁴ together with the adjacent nitrogen atom include a morpholine ring, an imidazoline ring, a piperazine ring, a piperidine ring, and a pyrrolidine ring.

  Examples of the anion include chloride ion, bromide ion, iodide ion, methyl sulfate ion, ethyl sulfate ion, acetate ion, phosphate ion, sulfate ion, lactate ion, and saccharin ion.

  Specific examples of component (B) include cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, isostearyltrimethylammonium chloride, lauryltrimethylammonium chloride, behenyltrimethylammonium chloride, octadecyltrimethylammonium chloride, cocoyltrimethylammonium chloride, cetyltrimethyl bromide. Ammonium, stearyltrimethylammonium bromide, lauryltrimethylammonium bromide, isostearyllauryldimethylammonium chloride, dicetyldimethylammonium chloride, distearyldimethylammonium chloride, dicocoyldimethylammonium chloride, γ-gluconamidopropyldimethylhydroxyethylammonium chloride, Di (polyoxyethylene (2)) oleylmethylammo chloride , Dodecyldimethylethylammonium chloride, octyldihydroxyethylmethylammonium chloride, tri (polyoxyethylene (5)) stearylammonium chloride, polyoxypropylenemethyldiethylammonium chloride, lauryldimethyl (ethylbenzyl) ammonium chloride, amidopropyl behenate chloride -N, N-dimethyl-N- (2,3-dihydroxypropyl) ammonium, tallowdimethylammoniopropyltrimethylammonium dichloride, benzalkonium chloride and the like.

As the component (B), monoalkyltrimethylammonium salt and dialkyldimethylammonium salt, that is, R ¹ , or R ¹ and R ² are linear or branched C 8-30, further 10-24, In particular, those having 12 to 18 alkyl groups and the remainder being methyl groups are preferred, and among them, monoalkyltrimethylammonium salts are preferred.

  Two or more types of component (B) can be used in combination, and the content of the first agent and the second agent in the mixed solution is 0.1 to 5% by weight, preferably 0.2 to 3% by weight, particularly 0.3 to 1% by weight.

  In addition, in order to obtain fine foaming properties and a high conditioning effect, the weight ratio of component (A) to component (B) in the mixture (content of component (A) / content of component (B)) is 1 to 100 Yes, preferably 2 to 75, more preferably 3 to 50, especially 5 to 25.

  When the two-component hair cosmetic of the present invention is a hair dye, the first agent contains an oxidation dye or a direct dye. The surfactant contained in the first agent for solubilization of these dyes is mainly a nonionic surfactant of component (A) in view of its high ionic strength due to ammonia and carbonate contained in the first agent. Is preferably used.

[(C): higher alcohol]
In the two-part hair cosmetic composition of the present invention, a higher alcohol is further added as a component (C) in order to improve the effect of suppressing liquid dripping while improving foaminess and applying to hair. It can be included. As the higher alcohol, those having an alkyl group or alkenyl group having 10 to 30 carbon atoms, more preferably 12 to 24 carbon atoms, particularly 14 to 22 carbon atoms are preferable, and those having an alkyl group, particularly a linear alkyl group are preferable. Examples of the higher alcohol of component (C) include myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, isostearyl alcohol, oleyl alcohol and the like. Two or more of these can be used in combination.

  Two or more components (C) can be used in combination, and can be contained in either one or both of the first agent and the second agent. The content of component (C) in the mixed liquid of the first agent and the second agent does not inhibit the foaming property when the liquid temperature is low, and enhances the effect of suppressing dripping during standing Therefore, 0.01 to 0.8% by weight is preferable, further 0.1 to 0.7% by weight, particularly 0.2 to 0.6% by weight is preferable.

[(D): Dimethyldiallylammonium chloride / acrylamide copolymer]
The two-part hair cosmetic composition of the present invention may further contain a dimethyldiallylammonium chloride / acrylamide copolymer (INCI name polyquaternium-7) as a component (D) in order to improve the dripping prevention effect. . As the component (D), for example, commercially available products such as Marquat 550 (ONDEO Nalco) can be used.

  The content of component (D) in the mixture of the first agent and the second agent realizes good foaming that is easy to apply to hair even when the liquid temperature is low or close to normal temperature, and the mixed liquid is added to the hair. In order to obtain an effect of preventing dripping between application and washing, 0.01 to 3% by weight, more preferably 0.1 to 1% by weight, and particularly preferably 0.2 to 0.5% by weight.

[(E): Dimethyldiallylammonium chloride / acrylic acid copolymer]
In the two-component hair cosmetic composition of the present invention, in order to control the defoaming property after application to the hair, to maintain an appropriate foam residue, and to make it easier to confirm the location where the application has been made, chlorination is further added as a component (E). Dimethyl diallylammonium / acrylic acid copolymer (INCI name: Polyquaternium-22) can be contained. As the component (E), for example, commercially available products such as Marquat 280 and Marquat 295 (above, ONDEO Nalco) can be used.

  The content of the component (E) in the mixed solution of the first agent and the second agent does not inhibit the foaming property when the liquid temperature is low, and in order to obtain the above effect, 0.01 to 0.5% by weight, particularly 0.1 to 0.2% by weight is preferred.

[(F): Nonvolatile hydrophilic solvent]
Furthermore, it is preferable to contain a non-volatile hydrophilic solvent in the first agent or the second agent. Thereby, after applying the two-component hair cosmetic composition of the present invention to the hair and leaving it to stand, moisture evaporates from the hair cosmetic composition and irritating components such as hydrogen peroxide are concentrated. Can reduce irritation to the scalp. As the non-volatile hydrophilic solvent, those having no defoaming action such as polyols and lower (1 to 4 carbon atoms) alkyl ethers thereof are preferable. As the polyols, those having 2 to 6 carbon atoms are preferable, and examples thereof include glycerin, propylene glycol, dipropylene glycol, 1,3-butanediol, ethylene glycol, diethylene glycol, isoprene glycol, sorbitol and the like. Examples of the lower alkyl ethers of the polyol include mono-lower alkyl ethers and poly-lower alkyl ethers (for example, di-lower alkyl ethers) of the above-described polyols. Of these, monomethyl ether or monoethyl ether of polyol is preferable, and specific examples include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, and diethylene glycol monoethyl ether. Two or more of these can be used in combination.

  The content of the non-volatile hydrophilic solvent in the mixed solution of the first agent and the second agent is 0.01 to 5% by weight because the effect of reducing scalp irritation and good foam quality even when the liquid temperature is low. %, More preferably 0.1 to 4% by weight, particularly preferably 0.2 to 3% by weight.

〔dye〕
The two-component hair cosmetic composition of the present invention can be used for decoloring hair when a mixture of the first agent and the second agent does not contain a dye, and can be dyed by containing an oxidative dye or a direct dye. Can be used. When used for hair dyeing, the first agent contains an oxidation dye or a direct dye. As this oxidation dye, paraphenylenediamine, paraaminophenol, toluene-2,5-diamine, N, N-bis (2-hydroxyethyl) paraphenylenediamine, 2- (2-hydroxyethyl) paraphenylenediamine, 4- Dye precursors such as amino-3-methylphenol, 6-amino-3-methylphenol, orthoaminophenol, 1-hydroxyethyl-4,5-diaminopyrazole, resorcin, 2-methylresorcin, metaaminophenol, paraamino ortho Examples include couplers such as cresol, 5- (2-hydroxyethylamino) -2-methylphenol, metaphenylenediamine, 2,4-diaminophenoxyethanol, and 1-naphthol. Examples of the direct dye include paranitroorthophenylenediamine, paranitrometaphenylenediamine, basic yellow 87, basic orange 31, basic red 12, basic red 51, basic blue 99, and acid orange 7.

[Silicones]
The two-component hair cosmetic composition of the present invention can further contain silicones. Examples of silicones include dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicone, amino-modified silicone, oxazoline-modified silicone elastomer, and the like, and emulsions in which these are dispersed in water using a surfactant. Of these, polyether-modified silicones, amino-modified silicones, and emulsions thereof are preferable because they can be stably dispersed in water without using a thickener.

  The polyether-modified silicone includes terminal-modified and side-chain-modified types such as a pendant type (comb type), a both-end modified type, and a one-end modified type. Examples of such modified silicones include dimethylsiloxane / methyl (polyoxyethylene) siloxane copolymer, dimethylsiloxane / methyl (polyoxypropylene) siloxane copolymer, dimethylsiloxane / methyl (polyoxyethylene / polyoxypropylene) siloxane. A copolymer etc. are mentioned. As the polyether-modified silicone, those having HLB of 10 or more, and particularly those of HLB of 10 to 18 are preferable from the viewpoint of compatibility with water. Here, HLB is based on the value obtained from the cloud number (cloud number: an index correlated with HLB and applied to ether type nonionic surfactants).

  Any amino-modified silicone may be used as long as it has an amino group or an ammonium group, but amodimethicone is preferable.

  The content of the silicones in the mixed solution of the first agent and the second agent is preferably 0.01 to 10% by weight in order to make the foam smoothly fit into the hair and to give a high conditioning effect to the hair. 0.1 to 5% by weight, particularly 0.5 to 3% by weight is preferred.

[Other ingredients]
In addition, the first agent and the second agent are fragrances, ultraviolet absorbers, sequestering agents such as edetic acid, bactericides, preservatives such as methyl parahydroxybenzoate, phenacetin, 1-hydroxyethane-1 , 1-diphosphonic acid, a stabilizer such as oxyquinoline sulfate, an organic solvent such as ethanol, benzyl alcohol and benzyloxyethanol, a water-soluble polymer compound such as hydroxyethyl cellulose, a humectant, and the like. The mixed liquid of the first agent and the second agent is preferably water as a main medium.

  In order to further enhance the decoloring effect, a persulfate such as ammonium persulfate can be contained in the mixed solution as the third agent.

〔viscosity〕
The viscosity of the mixed solution of the first agent and the second agent is preferably 0.1 to 30 mPa · s, more preferably 0.5 to 20 mPa · s, and particularly preferably 1 to 10 mPa · s. Here, the viscosity is a value after rotating for 1 minute at 30 rpm using a rotor No. 1 with a B-type rotational viscometer at 25 ° C.

  By adjusting the viscosity of the mixed solution of the first agent and the second agent to be in the above range, it is possible to realize a foam volume that is easy to apply, and to prevent dripping after the mixed solution is applied to the hair. In addition to being able to suppress, it becomes easy to squeeze when discharging bubbles with a squeeze foamer or the like. In order to adjust the viscosity of the mixed solution to the above-described range, a water-soluble solvent such as ethanol may be added, or the content and type of surfactants, polyols, higher alcohols, and the like may be appropriately adjusted.

  The first agent and the second agent are preferably liquid, but if the viscosity of the mixed solution of the first agent and the second agent is within the above range, one of the first agent and the second agent May be in the form of powder, granule, paste or the like.

[Gas-liquid mixture ratio]
The gas / liquid mixing ratio of the air and the mixed liquid by the foam discharge means of the former container is preferably 7 to 40 mL / g, more preferably 15 to 30 mL / g from the viewpoint of ease of application of the agent to the hair and ease of application. preferable. In addition, the gas-liquid mixing ratio here is a value measured as follows.

  First, the gas-liquid mixing ratio is determined by measuring the weight and volume of the foam discharged at 25 ° C. Put 100g of the mixture into a squeeze foamer container (Daiwa Seisakusha, volume 150mL, mesh roughness (mesh) is 200 mesh per mixing chamber (200 mesh per 1 inch (25.4mm)), 255 mesh tip) From the time when the remaining amount is 80 g, 20 g of foam is discharged into a 1000 mL measuring cylinder and the volume of the foam is measured 1 minute after the start of discharge. The gas-liquid mixing ratio (mL / g) is obtained by dividing the volume (mL) of the discharged foam by the weight of 20 g.

[Former container]
In the present invention, the former container is a non-aerosol type container, and is used for mixing the liquid mixture of the first agent and the second agent with air without using a propellant and discharging it in the form of foam. . By using the former container, an effect of preventing scattering of the discharged agent can be obtained. In particular, a non-aerosol type container can manufacture a product at a lower cost than an aerosol type container and does not require a high-pressure gas propellant. Therefore, the product can be handled more safely in distribution.

  As the former container, a known pump former container having a foam discharge means, a squeeze foamer container, an electric frother, a pressure accumulating pump former container or the like can be used. More specifically, for example, food and containers (vol. 35, No. 10, p588 to 593 (1994); vol. 35, No. 11, p624 to 627 (1994); vol. 36, No. 3, p154 ~ 158 (1995)) Pump former E3 type, F2 type (above, Daiwa Steel Co., Ltd.), squeeze foamer (Daiwa Steel Co., Ltd.), electric whisk (Matsushita Electric Works), air spray for Mar (Air Spray International). As the former container used in the two-component hair cosmetic composition of the present invention, a pump former container and a squeeze foamer container are preferable because they are inexpensive and easy to use.

  A pump former container or a squeeze foamer container has a foam-generating part such as a net, and when the liquid mixture of one agent and two agents is dried and solidified to cause clogging, bubbles are generated at the next discharge. It is preferable to have a thin-walled net because the solidified material can be immediately dissolved by this flow to eliminate clogging. In this case, the net mesh is preferably 50 to 500 mesh, particularly 150 to 400 mesh. By using a mesh net in this range, creamy foam can be generated. Moreover, as a material of such a mesh, nylon, polyester, etc. can be illustrated preferably.

  The former container used in the two-component hair cosmetic composition of the present invention is provided with at least one, preferably a plurality of such nets, particularly two in view of economy, foam stability and the like. It is preferable to do.

  In the former container, the parts that come into contact with the contents (the inner wall of the container, the inner wall of the foam discharge means, etc.) are made of a material that does not corrode with alkali and hydrogen peroxide and is permeable to oxygen generated by the decomposition of hydrogen peroxide. It is preferable.

  As the product form of the two-component hair cosmetic composition of the present invention comprising the first agent, the second agent and the former container, the first agent or the second agent is filled in a container separate from the former container, and both are used at the time of use. The agent may be transferred to the former container and mixed, but one agent is filled into the former container, the other agent is filled into a separate container, and the other agent is transferred into the former container at the time of use. You may make it enter. In this case, the second agent is a gas permeable container, particularly an oxygen permeable material (for example, polyethylene) in order to prevent the pressure in the container from rising due to oxygen generated by the decomposition of hydrogen peroxide. It is preferable to fill a former container consisting of On the other hand, in order to prevent the oxidation of the oxidation dye, the first agent needs to use a container that does not easily transmit oxygen.

〔how to use〕
In order to dye or decolorize hair using the two-component hair cosmetic of the present invention, the first agent and the second agent are mixed in the former container, and the foamy agent discharged from the container is directly used. You may apply to hair and you may apply to hair using tools, such as a hand or a brush. After application, leave for about 3 to 60 minutes, preferably about 5 to 45 minutes, and wash away. Then, after shampooing and rinsing as appropriate, the hair is washed and dried.

Examples 1 to 5 and Comparative Example 1: Two-component hair cosmetic for hair dyeing The first agent and the second agent having the blending compositions (% by weight) shown in Tables 1 and 2 were prepared. The second agent was mixed in a squeeze foamer (Daiwa Seisakusha, volume 150 mL, mesh roughness 200 mesh mesh, tip 255 mesh) at a mixing ratio (weight ratio) of 1: 1.5. It was discharged. 80 g of the discharged foam was applied to the entire subject's hair, allowed to stand for 30 minutes, then lightly washed with water and shampooed to dye the hair.
For “feel of hair”, “easy to apply”, and “foam mochi”, comparative evaluation between Examples 1 to 5 and Comparative Example 1 was performed by sensory evaluation by five specialist panelists. The score was determined as follows, and the total score of evaluation was shown in the lower column of the composition of Tables 1 and 2.

Example is better than comparative example: +2 point Example is slightly better than comparative example: +1 point Example and comparative example are equivalent: 0 point Comparative example is slightly better than example: -1 point Comparative example Is better than the example: -2 points

Claims (4)

A two-component hair cosmetic comprising a first agent containing an alkaline agent, a second agent containing hydrogen peroxide, and a former container for discharging a mixture of the first and second agents in the form of foam. In the mixture, the following components (A) and (B):
(A) Nonionic surfactant 0.1 to 10% by weight
(B) Cationic surfactant 0.1 to 5% by weight
A two-component hair cosmetic composition comprising 1 to 100 in a weight ratio of component (A) to component (B) (content of component (A) / content of component (B)).   The two-component hair cosmetic according to claim 1, further comprising 0.01 to 0.8% by weight of higher alcohol as component (C) in the mixed solution of the first and second agents.   The two-part hair cosmetic composition according to claim 1 or 2, further comprising 0.01 to 3% by weight of a dimethyldiallylammonium chloride / acrylamide copolymer as a component (D) in a mixed solution of the first and second agents.   The two-component hair according to any one of claims 1 to 3, wherein the component (F) further comprises a non-volatile hydrophilic solvent in an amount of 0.01 to 5% by weight in the mixed solution of the first agent and the second agent. Cosmetics.