JPH06340523A - Hair cosmetic - Google Patents

Abstract

PURPOSE:To obtain a hair cosmetic effective for imparting hair with excellent softness as well as moist feeling and smoothness by combining a beta- hydroxymonosulfonic acid or its salt with an alpha-hydroxymonocarboxylic acid or its salt. CONSTITUTION:This hair cosmetic is produced by compounding a beta- hydroxymonosulfonic acid of formula I (R<1> is H or 1-3C alkyl; X is H, metal atom or onium; R<1> and X are not H at the same time) or its salt in combination with an alpha-hydroxymonocarboxylic acid of formula II (R<2> is H or 1-4C alkyl) or its salt. The hair cosmetic exhibits excellent frothing property in shampooing, gives hair having durable softness and keeps especially stiff hair to soft state. Furthermore, it has excellent hair-collecting property. The compound of formula I is e.g. sodium isethionate and the compound of formula II is e.g. lactic acid or its salt. The hair cosmetic is preferably further incorporated with a surfactant and/or oil and fat.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair cosmetic composition, and more specifically, it contains β-hydroxymonosulfonic acid or a salt thereof and α-hydroxymonocarboxylic acid or a salt thereof, and exhibits excellent foaming during hair washing. In addition, the present invention relates to hair cosmetics such as shampoo, hair rinse, hair conditioner, and hair treatment that have excellent long-lasting flexibility.

[0002]

2. Description of the Related Art Conventionally, for the purpose of improving the feel of hair, hair cosmetics have mono- or di-linear long-chain alkyl quaternary ammonium salts and mono- or di-branched long-chain alkyl quaternary ammonium salts. And other cationic surfactants are blended.

However, although these conventional hair cosmetics are excellent in the feel of the hair, that is, a moist feeling as a conditioning effect, smoothness, etc., they have a drawback that they are insufficient in flexibility. That is, although the softness can be felt in the wet state, the effect is almost lost in the dry state. Therefore, for the purpose of solving such drawbacks, higher alcohols, glycerides, liquid paraffin, oils and fats such as silicone oils, and the like have been used in combination. In these methods, hydrophobic molecules are left on the hair surface to lower the surface tension and impart a soft feeling to the touch, and substances that remain on the hair surface come into contact with daily life over time, Alternatively, since it falls off due to the action of washing hair, it is difficult to maintain its effect in terms of flexibility. In addition, hard hair often has poor cohesion due to the large elasticity of the hair, and it has been difficult to meet the demands of consumers by conventional superficial measures. In addition, recently as a method to improve the flexibility of hair,
Hair conditioning compositions using a 2-hydroxy fatty acid having 6 or more carbon atoms as a conditioning component have been proposed (for example, JP-A-3-48607 and JP-A-3-48609). However, even with this method, a sufficient effect has not been obtained yet in terms of sustaining the flexibility. Further, when a large amount of higher alcohols is used, there is a drawback that foaming is poor during hair washing.

[0004]

Accordingly, it exhibits excellent lathering upon washing hair, imparts a moisturizing feeling and smoothness to the hair, and is excellent in flexibility, especially long-lasting even for hard hair. It has been desired to develop a hair cosmetic composition that can impart excellent softness and good hair cohesion.

[0005]

[Means for Solving the Problems] Under the circumstances, the present inventors have conducted diligent studies to solve the above problems, and as a result,
If β-hydroxymonosulfonic acid or a salt thereof and α-hydroxymonocarboxylic acid or a salt thereof are combined and blended, excellent foaming is exhibited at the time of hair washing, the softness is continuously maintained, and particularly hard hair is also kept soft. The present invention has been completed by finding that a hair cosmetic composition capable of producing hair and having excellent hair cohesion can be obtained.

That is, the present invention comprises the following components (a) and (b): (a) General formula (1)

[0007]

[Chemical 3]

(In the formula, R ¹ is a hydrogen atom or has 1 to 3 carbon atoms.
And an X represents a hydrogen atom, a metal atom or an onium group. However, β-hydroxymonosulfonic acid represented by the formula (2) wherein R ¹ and X are simultaneously hydrogen atoms) or a salt thereof (b) the general formula (2)

[0009]

[Chemical 4]

(In the formula, R ² is a hydrogen atom or a carbon number of 1 to 4
The present invention provides a hair cosmetic containing an α-hydroxymonocarboxylic acid or a salt thereof represented by

The component (a) used in the present invention, β-hydroxymonosulfonic acid or a salt thereof, has the general formula (1) above.
Among the compounds represented by X in the formula (1), examples of the metal atom include alkali metals such as sodium and potassium, alkaline earth metals such as calcium, and the like; and onium, Ammonium,
Examples include triethanolamine. Compound (1)
Examples thereof include isethionate, 2-hydroxypropanesulfonate, 2-methyl-2-hydroxypropanesulfonate, 2-hydroxybutanesulfonate, and the like, and sodium isethionate is particularly preferable.

These β-hydroxymonosulfonic acids or salts thereof can be used alone or in combination of two or more, and 0.01 to 20% by weight (hereinafter,
It is preferable to add only 1% to 15%).

The α-hydroxymonocarboxylic acid as the component (b) used in the present invention is represented by the general formula (2). Specific examples thereof include glycolic acid, lactic acid, α
-Hydroxybutyric acid and the like can be mentioned, and as these salts, sodium salt, potassium salt, calcium salt, ammonium salt, triethanolamine salt, organic quaternary ammonium salt and the like can be mentioned. Of these, lactic acid or a salt thereof is particularly preferable.

The α-hydroxymonocarboxylic acid or salt thereof as the component (b) can be used alone or in combination of two or more kinds, and is 0.1 to 20%, particularly 1 to 10% in the total composition. It is preferable to mix them. The mixing ratio of the components (a) and (b) is (a) :( b) = 1: 10.
It is preferably 10: 1, particularly preferably 4: 6 to 6: 4.

Further, the hair cosmetic composition of the present invention further contains a surfactant as the component (c) to further improve the effects of the present invention and to impart a good feeling such as smoothness. You can

As the surfactant as the component (c), any of anionic surfactants, amphoteric surfactants, nonionic surfactants and cationic surfactants can be used. Can be mentioned.

[Anionic Surfactant] (1) A linear or branched alkylbenzene sulfonate having an alkyl group having an average carbon number of 10 to 16. (2) Having a linear or branched alkyl group or alkenyl group having an average carbon number of 10 to 20 and having an average of 0.5 to 10 in one molecule.
8 mol of ethylene oxide, propylene oxide,
Butylene oxide, ethylene oxide and propylene oxide in the ratio of 0.1 / 9.9 to 9.9 / 0.1,
Alternatively, an alkyl or alkenyl ether sulfate in which ethylene oxide and butylene oxide are added at a ratio of 0.1 / 9.9 to 9.9 / 0.1. (3) An alkyl or alkenyl sulfate having an alkyl group or an alkenyl group having an average carbon number of 10 to 20. (4) An olefin sulfonate having an average of 10 to 20 carbon atoms in one molecule. (5) An alkane sulfonate having an average of 10 to 20 carbon atoms in one molecule. (6) A saturated or unsaturated fatty acid salt having an average of 10 to 24 carbon atoms in one molecule. (7) It has an alkyl group or an alkenyl group having an average carbon number of 10 to 20, and an average of 0.5 to 8 moles of ethylene oxide, propylene oxide, butylene oxide, ethylene oxide and propylene oxide per molecule.
At a ratio of 1 / 9.9 to 9.9 / 0.1, or ethylene oxide and butylene oxide of 0.1 / 9.9 to
Alkyl or alkenyl ether carboxylates added at a ratio of 9.9 / 0.1. (8) An α-sulfone fatty acid salt or ester having an alkyl group or an alkenyl group having an average of 10 to 20 carbon atoms. (9) An N-acyl amino acid type surfactant having an acyl group having 8 to 24 carbon atoms and a free carboxylic acid residue or a sulfonic acid residue. (10) A phosphoric acid mono- or diester type surfactant having an alkyl group or an alkenyl group having 8 to 24 carbon atoms or an ethoxylate thereof. (11) A sulfosuccinic acid ester such as a higher alcohol having 8 to 22 carbon atoms or its ethoxylate, or a sulfosuccinic acid ester derived from a higher fatty acid amide. (12) Higher fatty acid monoethanolamide having 8 to 20 carbon atoms, diethanolamide, or a sulfonate thereof such as ethoxylate. (13) A monoglyceride sulfonate having 8 to 20 carbon atoms. (14) A salt of a condensate of a higher fatty acid having 8 to 20 carbon atoms and isethionic acid.

[Amphoteric Surfactant] (15) An α-position addition type secondary amide or tertiary amide type imidazoline type amphoteric surfactant having an alkyl group, an alkenyl group or an acyl group having 8 to 24 carbon atoms. (16) A carbobetaine-based, amidobetaine-based, sulfobetaine-based, hydroxysulfobetaine-based, or amidosulfobetaine-based amphoteric surfactant having an alkyl group, an alkenyl group, or an acyl group having 6 to 24 carbon atoms.

[Nonionic Surfactant] (17) Having a linear or branched alkyl group or alkenyl group having an average carbon number of 10 to 24, ethylene oxide,
Polyoxyalkylene alkyl ether or polyoxyalkylene alkenyl ether to which propylene oxide or butylene oxide is added. (18) Ethoxylate of monoglyceride having 8 to 20 carbon atoms. (19) Higher fatty acid sucrose ester having 8 to 20 carbon atoms. (20) A polyglycerin fatty acid ester having an acyl group having 8 to 20 carbon atoms. (21) Higher fatty acid monoethanolamide having 8 to 20 carbon atoms, diethanolamide or ethoxylate thereof. (22) Polyoxyethylene hydrogenated castor oil. (23) Polyoxyethylene sorbitan fatty acid ester having an acyl group having 8 to 20 carbon atoms. (24) Polyoxyethylene sorbit fatty acid ester having an acyl group having 8 to 20 carbon atoms. (25) An alkyl saccharide-based surfactant having a linear or branched alkyl group, alkenyl group or alkylphenyl group having 8 to 18 carbon atoms. (26) Alkylamine oxide having a linear or branched alkyl group having 8 to 20 carbon atoms or an alkenyl group,
Or an alkylamidoamine oxide. (27) An ether compound or ester compound of a polyhydric alcohol having a linear or branched alkyl group or alkenyl group having 8 to 20 carbon atoms.

[Cationic Surfactant] (28) An imidazoline ring-opening type quaternary ammonium salt having an alkyl group or an alkenyl group having 7 to 21 carbon atoms. (29) Mono long chain having a linear or branched alkyl group or alkenyl group having 8 to 24 carbon atoms, which is optionally interrupted by an oxygen atom or an acid amide group or may be substituted with a hydroxyl group. Alkyl quaternary ammonium salt. (30) A di-long chain having a linear or branched alkyl group or alkenyl group having 8 to 24 carbon atoms, which may be interrupted by an oxygen atom or an acid amide group or may be substituted with a hydroxyl group. Alkyl quaternary ammonium salt. (31) An alkyl group having a branched chain with a total carbon number of 8 to 28, which may be interrupted by an oxygen atom or an acid amide group or may be substituted with a hydroxyl group, and a linear carbon number of 8 to 22 Has an asymmetric di-long chain alkyl group or alkenyl group, which has an alkyl group or an alkenyl group which may be interrupted by an oxygen atom or an acid amide group or which may be substituted with a hydroxyl group in the same molecule. Quaternary ammonium salt.

As the counterion of the anionic residue of these surfactants, alkali metal ions such as sodium and potassium, alkaline earth metal ions such as calcium and magnesium, ammonium ion, and alkanol groups having 2 or 3 carbon atoms. 1 to 3 alkanolamines (eg monoethanolamine, diethanolamine, triethanolamine, triisopropanolamine, etc.)
Can be mentioned. Examples of the counter ion of the cationic residue include halogen ions such as chlorine, bromine and iodine, and methosulfate and saccharinate ions.

Among these surfactants, (2) alkyl ether sulfate, (3) alkyl sulfate, (6)
Saturated or unsaturated fatty acid salt, (9) N-acylated amino acid type surfactant, (10) phosphate monoester type surfactant, (11) sulfosuccinate ester, (12) amide ether sulfate, (15) 2 -Amide-type imidazoline-based amphoteric surfactants, especially amido-amino acid-type amphoteric surfactants improved in polymer solubility by desalting (JP-A-63-128100), (16) amidobetaine or hydroxysulfobetaine-based surfactants Amphoteric surfactant, (17)
Polyoxyethylene alkyl ether, (25) alkyl saccharide-based surfactant, (26) alkyl amine oxide, (27) adduct obtained by addition reaction of branched chain alkyl glycidyl ether and polyhydric alcohol, (2
8) Alkyl imidazoline ring-opening type quaternary ammonium salt,
(29) Monoalkyltrimethylammonium salt, (3
0) Dialkyldimethylammonium salt or (31) asymmetric dialkyldimethylammonium salt is preferred as the main activator.

Further, specific preferred examples of the component (c) include:
Sodium polyoxyethylene lauryl ether sulfate (average ethylene oxide addition of 2 to 3 mol), lauryl sulfate triethanolamine, sodium salt of coconut oil fatty acid, coconut oil fatty acid amide ether sulfate, lauroyl-N-methyltaurine, lauroyl-N-methyl -Β-alanine, polyoxyethylene sulfosuccinate disodium lauryl (3 to 7 EO), lauryl phosphate, N-lauroyl-N'-carboxymethyl-N'-
(2-Hydroxyethyl) ethylenediamine triethanolamine salt, N-lauroyl-N- (2-hydroxyethyl) -N ', N'-bis (carboxymethyl) ethylenediamine sodium salt, decyl polyglucoside, lauryl hydroxysulfobetaine, laurin Acid amidopropyl dimethylamino acetic acid betaine, polyoxyethylene (20) lauryl ether, lauryl amine oxide, 2-hydroxy-3-[(2-hydroxyethyl)
[2-[(1-oxotetradecyl) amino] ethyl]
Amino] propyl-N, N, N-trimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, dicetyldimethylammonium chloride, distearyldimethylammonium chloride, 2-dodecylhexadecyltrimethylammonium chloride, carbon number 12
~ 15 commercially available oxo synthetic alcohols (Dovanol 23
And an equivalent mixture of 45, a branched dialkyldimethylammonium chloride having a branching rate of 20% derived from Mitsubishi Yuka Co., Ltd., N-2- (3-methylhexyl) -7-methyldecyl-N-dodecyl-N, N-dimethylammonium chloride, N-2- (3-methylhexyl) -7-methyldecyl-N-octyl-N, N-dimethylammonium chloride, N-2-hexyldecyl-N-dodecyl-N, N-dimethylammonium Examples thereof include chloride and pentaerythritol glyceryl isostearyl ether monoethers.

These surfactants as the component (c) can be used alone or in combination of two or more, and it is preferable to add them in an amount of 0.1 to 50% in the total composition.

The hair cosmetic composition of the present invention may further contain oils and fats as the component (d) for the purpose of improving the feel. Such oils and fats are not particularly limited as long as they are generally used as hair cosmetics, and for example, higher alcohols having a linear or branched alkyl group or alkenyl group; liquid paraffin, petrolatum, solid type Hydrocarbons such as paraffin; liquid lanolin,
Lanolin derivatives such as lanolin fatty acid; higher fatty acid esters, higher fatty acids, fats and oils such as long-chain amidoamine having an alkyl group or an alkenyl group; animal and vegetable fats and oils such as mink oil and olive oil; water-insoluble silicone such as dimethylpolysiloxane Examples thereof include oils and silicone derivatives.

Among these fats and oils as the component (d), higher alcohols and higher fatty acids having a linear or branched alkyl group or alkenyl group having 12 to 26 carbon atoms, and monoglycerides of these fatty acids are particularly preferable. Preferably
Specifically, higher alcohols such as cetyl alcohol, stearyl alcohol, aralkyl alcohol, behenyl alcohol, caranavir alcohol and ceryl alcohol, stearic acid, myristic acid, behenic acid, isostearic acid, 18-methyleicosanoic acid, coconut oil. Examples thereof include higher fatty acids such as fatty acids, oleic acid monoglyceride, palmitic acid monoglyceride, behenic acid monoglyceride, isostearic acid monoglyceride and the like.

These oils and fats as the component (d) can be used alone or in combination of two or more, and it is preferable to add 0.01 to 30%, particularly 0.05 to 20% in the total composition. .

In the hair cosmetic composition of the present invention, if necessary, a thickening agent such as hydroxyethyl cellulose, a fragrance, a pearling agent, a dye, an ultraviolet absorber, and an oxidizing agent may be added as long as the effects of the present invention are not impaired. You may mix | blend an inhibitor and a preservative.
Further, in order to improve the feel of hair, cationic polymers such as cationized cellulose, silicone derivatives such as dimethylpolysiloxane, amino-modified silicone, polyether-modified silicone and the like can be blended.

The hair cosmetic composition of the present invention can be pH-adjusted if necessary with an inorganic acid such as phosphoric acid or hydrochloric acid; or an inorganic alkali such as sodium hydroxide; an organic alkali such as triethanolamine. For example, in the case of an aqueous solution of 1% sodium isethionate and 1% sodium lactate, it is preferable to adjust the pH to 3-11.

The hair cosmetic composition of the present invention can be prepared according to a conventional method. Further, its dosage form is not particularly limited, and various dosage forms such as emulsion, suspension, gel, transparent solution, aerosol, etc. can be used according to the application, and further, it is used as a general hair cosmetic, that is, a pre-shampoo agent. , Shampoo, hair rinse, hair treatment, hair conditioner, conditioning blow agent, etc.

[0031]

EFFECTS OF THE INVENTION The hair cosmetic composition of the present invention has a good feeling of use, imparts continuous softness to hair, especially hard hair, and is excellent in hair cohesion. In addition, when used as a shampoo, it shows excellent foaming.

[0032]

The present invention will be described below with reference to examples, but the present invention is not limited to these examples. In addition,
The test method used in this example is as follows.

(A) Sensory evaluation (1) In the case of shampoo: Japanese women are thicker (about 70 μm)
20 g (15 cm in length) of hair of m) is bundled, 1 g of shampoo is applied to this hair bundle, and foaming occurs when lathering for 1 minute, then flexibility when rinsed with running water for 30 seconds, and then dried with a dryer. Evaluate the flexibility after
Further, the hair bundle was allowed to stand in a constant temperature and constant humidity chamber (25 ° C., 50% RH) for 24 hours, and then the flexibility was evaluated. The evaluation was performed according to the following criteria. Foaming: Good; foaming is good. Δ: Insufficient foaming. X: Poor foaming. Flexibility during rinsing: ○; Soft. Δ: Insufficient softness. X: Softness is not felt. Flexibility immediately after drying: Good; soft. Δ: The softness is insufficient. ×: Not soft Flexibility after 24 hours: Good; soft. Δ: The softness is insufficient. ×: Not soft

(2) In case of after-shampoo agent such as hair rinse: 25 g (15 cm in length) of hair of a Japanese woman who has not been subjected to beauty treatment such as cold perm is bundled, rinsed with shampoo, and then rinse type hair As for the cosmetics, 2.5 g of the agent was uniformly applied to this hair bundle, which was then rinsed with running water for 30 seconds, towel-dried, and then dried with a dryer. Further, with respect to the hair cosmetics of the soot-free type, a predetermined amount of the agent was applied to this hair bundle and then dried. The hair bundle was evaluated for its flexibility, smoothness, and lack of oiliness according to the following criteria. Flexibility immediately after drying: Good; soft. Δ: The softness is insufficient. ×: Not soft Smoothness immediately after drying: Good; good slip. Δ: The feeling of slippage is insufficient. X: There is no. Little oily feeling immediately after drying: Good; little. △: somewhat large X: Many. Flexibility after 24 hours: Good; soft. Δ: The softness is insufficient. ×: Not soft

Example 1 A hair conditioner having the composition shown in Table 1 was produced by a conventional method, and its softness after 24 hours was evaluated. The results are shown in Table 1.
Shown in.

[0036]

[Table 1]

Example 2 Shampoos having the compositions shown in Tables 2 and 3 were produced and evaluated. The results are shown in Tables 2 and 3.

[0038]

[Table 2]

[0039]

[Table 3]

Example 3 A shampoo (invention product 7) having the following composition was produced. This foamed well when washing hair, had an excellent feel during rinsing and drying, and exhibited sufficient flexibility even after drying and after 24 hours of washing hair.

[Table 4] (Components) (%) (1) N-lauroyl-N'-carboxymethyl-N '-(2-hydroxyethyl) ethylenediaminetriethanolamine salt 15 (2) Polyoxyethylene (3) laurylsulfosuccinic acid Disodium 15 (3) Sodium isethionate 3.0 (4) Sodium glycolate 3.0 (5) Coconut oil fatty acid amide propyl betaine 1.0 (6) Monodecanoic acid glyceride 1.0 (7) Ethylene glycol distearate 7.5 (8) Methyl paraoxybenzoate 0.3 (9) Butyl paraoxybenzoate 0.3 (10) Citric acid 1.5 (11) Ethanol 1.0 (12) Perfume 0.5 (13) Dye Suitable amount (14) Purified water balance

Example 4 An anti-dandruff shampoo (invention product 8) having the following composition was produced. This foamed well when washing hair, had an excellent feel during rinsing and drying, and exhibited sufficient flexibility even after drying and after 24 hours of washing hair. The antidandruff effect was also good.

[Table 5] (Components) (%) (1) Lauryl sulfate triethanolamine salt 10 (2) Polyoxyethylene (2) Disodium lauryl sulfosuccinate 4.0 (3) Lactic acid 5.0 (4) Sodium lactate 5 0.0 (5) Ethanol 1.0 (6) Sodium isethionate 2.5 (7) Lauryl hydroxysulfobetaine 1.0 (8) Pentaerythritol glyceryl / isostearyl ether monoether 2.0 (9) Cationic Polymer (Gaff Coat 755N, manufactured by GAF) 0.2 (10) Lanolin fatty acid aminopropylethyldimethylammonium ethosulfate 0.2 (11) Octopirox 0.5 (12) Fragrance, pigment Appropriate amount (13) Purified water balance

Example 5 A hair rinse composition having the composition shown in Table 6 was prepared and its rinse performance was examined. The results are shown in Table 6.

[0043]

[Table 6]

Example 6 Hair treatment having the composition shown below (product 11 of the present invention)
Was manufactured. This gave a sufficient softness to the hair the day after washing the hair.

Table 7 (Components) (%) (1) N-2- (3-methylhexyl) -7-methyl-1-decyl-N-dodecyl-N, N-dimethylammonium chloride 1.0 (2) Stearyl Trimethylammonium chloride 0.5 (3) Dialkyldimethylammonium chloride ^{* 1} 0.5 (4) Glycolic acid 3.0 (5) Sodium hydroxide 1.5 (6) Phenethyl alcohol 3.0 (7) Cetyl alcohol 6. 0 (8) Propylene glycol 3.0 (9) Triethanolamine 5.0 (10) Hydroxyethyl cellulose 0.5 (11) Sodium isethionate 0.5 (12) Perfume 0.4 (13) Water balance (Note) * 1: Branched quaternary derived from an oxo-method commercially available alcohol having 12 to 15 carbon atoms (equal mixture of Dovanol 23 and 45 manufactured by Mitsubishi Petrochemical Co., Ltd.) The branch rate ammonium salt is 20%.

Example 7 A hair treatment having the composition shown in Table 8 was produced. These also imparted a sufficient soft feeling to the hair the day after washing the hair.

[0046]

[Table 8]

Example 8 A conditioning blow agent (Invention product 15) having the following composition was produced. This imparted lasting softness to the hair and also had good hair cohesion.

Table 9 (Components) (%) (1) Stearyl trimethyl ammonium chloride 0.5 (2) α-monostearyl glyceryl ether 0.1 (3) Methyl phenyl polysiloxane 0.5 (4) Glycolic acid 2.5 (5) Sodium isethionate 1.5 (6) Ethanol 1.5 (7) Polyoxyethylene stearate 0.2 (8) Ethanol 20.0 (9) Perfume 0.4 (10) Water balance

Claims (3)

[Claims] 1. The following components (a) and (b): (a) General formula (1) (In the formula, R ¹ represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and X represents a hydrogen atom, a metal atom or an onium group, provided that R ¹ and X simultaneously represent a hydrogen atom.) Β-hydroxymonosulfonic acid represented by: or a salt thereof (b) General formula (2) A hair cosmetic containing an α-hydroxymonocarboxylic acid represented by the formula (wherein R ² represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms) or a salt thereof. 2. The hair cosmetic composition according to claim 1, further comprising (c) a surfactant. 3. The hair cosmetic composition according to claim 1, further comprising (d) an oil or fat.