JP4959944B2 - Hair nourishing composition - Google Patents

Description

  The present invention relates to a hair nurturing composition, and more specifically, it has a cell activation and intracellular energy metabolism enhancing effect by being externally applied to the scalp, and in particular, a nurturing that is excellent in hair touch improving effect. The present invention relates to a hair composition.

  Conventionally, functions expected of a hair-restoring agent include hair quality improvement such as improvement of thinning hair, reduction of hair loss, and improvement of hair tension.

  For example, 6-benzylaminopurine (6-benzyladenine) and its derivatives are known as a medicinal component of a hair nurturing agent effective in preventing and treating hair loss by activating cells (for example, Patent Document 1). 2).

However, since the hair nurturing agents described in the above-mentioned documents require a certain long period of time for the effects to be manifested, a hair nurturing agent that is excellent in hair quality improvement feeling as well as immediate effect is desired. The current situation is.
JP 05-320028 A (Claims, Examples, etc.) JP 07-233037 A (Claims, Examples, etc.)

  The present invention is to solve this in view of the current state of the prior art described above, and exhibits excellent hair growth promoting effects when applied externally to the scalp. An object is to provide a hair nurturing composition that is excellent in an improvement effect and has a good feeling of use while maintaining the improvement effect.

  As a result of intensive studies to solve the above-described conventional problems and the like, the present inventors contain a specific component and at least one selected from 6-benzylaminopurine and / or a derivative thereof. In this case, the inventors have found that the hair nurturing composition for the above purpose can be obtained which is excellent in immediate effect of improving hair quality and has an excellent hair growth effect, and has completed the present invention.

That is, the present invention resides in the following (1) to (3).
(1) It contains (A) an amphiphilic polymer and (B) at least one selected from 6-benzylaminopurine and its derivatives represented by the following general formula (I). Nourishing hair composition.
(2) A nourishing hair composition wherein the amphiphilic polymer as described in (1) above is a vinylpyrrolidone / vinyl acetate copolymer.
(3) The hair-growing composition according to (1) or (2), further comprising (C) vitamins.

  According to the present invention, it exhibits an excellent hair growth promoting effect when applied externally to the scalp, and in particular, it is excellent in hair quality improving effects such as improving the harshness of the hair, and further, the improving effect continues and is sticky. There is provided a hair nurturing composition with a good feeling of use.

Hereinafter, embodiments of the present invention will be described in detail.
The hair nurturing composition of the present invention comprises (A) an amphiphilic polymer, (B) at least one selected from 6-benzylaminopurine and derivatives thereof represented by the following general formula (I): It is characterized by containing.

The amphiphilic polymer of the component (A) used in the present invention means a polymer having a hydrophilic part and a hydrophobic part in the molecule, and is not particularly limited as long as it can be used for the human body. , Semi-synthetic and natural can be used.
More specifically, as such a polymer, vinyl pyrrolidone, vinyl caprolactam, crotonic acid, polyoxyethylene, polyoxypropylene, polyoxyethylene (meth) acrylate, polyoxyethylenepropyl (meth) acrylate, polyoxyethylene Butyl (meth) acrylate, N, N-dimethylaminoethyl (meth) acrylate, N, N-diethylaminoethyl (meth) acrylate, N, N-dimethylaminopropyl (meth) acrylate, N, N-diethylaminopropyl (meth) Acrylate, N, N-dibutylaminoethyl (meth) acrylate, N, N-dimethylaminopropyl (meth) acrylate, N, N-dimethylaminoethyl (meth) acrylamide, N, N-diethylaminopropyl (meth) acrylate Rilamide, vinyl acetate, acrylic ester, methacrylic ester, styrene, dimethylaminoethyl methacrylate, dimethylaminopropyl methacrylamide, vinyl alcohol, vinyl propionate, polypropylene, vinyl butyral, vinyl methyl ether, ethyl maleate, butyl maleate And two or more types of copolymers selected from structural units such as vinyl neodecanoate, alkyl acrylate, octylamide acrylate, amide acrylate, hydroxyalkyl acrylate, and methoxyalkyl acrylate.

Among these, from the viewpoint of adsorptivity to hair, it is preferable to use vinyl pyrrolidone as the hydrophilic part, specifically, a copolymer of vinyl pyrrolidone and vinyl acetate, a copolymer of vinyl pyrrolidone and dimethylaminoethyl methacrylate. ), At least one copolymer of vinylpyrrolidone and aminopropylmethacrylamide acrylate (each alone or a combination of two or more, the same shall apply hereinafter) is preferred, and particularly preferred is an even more excellent adsorptivity to hair. From this point, a vinylpyrrolidone / vinyl acetate copolymer is desirable.
The copolymerization molar ratio of these copolymers is not particularly limited, but preferably 1/100 to 100/1, particularly preferably 20/80 to 80/20.

The content of the amphiphilic polymer as the component (A) is usually preferably 0.0001 to 10% by mass (hereinafter simply referred to as “%”) with respect to the total amount of the hair-growing composition, and further, Preferably, it is desirable to contain 0.01 to 5%.
If the content of the component (A) is less than 0.0001%, the hair nurturing effect may not be sufficiently exhibited. On the other hand, if it exceeds 10%, the effect is not usually exhibited.

The substance represented by the general formula (I), which is the component (B) used in the present invention, can be any of those purified from natural products according to conventional methods or those obtained by synthesis.
In the general formula (I) represented by the component (B), examples of the substituent represented by R ₁ include benzyl group, 2-methylbenzyl group, 3-methylbenzyl group, 4-methylbenzyl group, 4 -Ethylbenzyl group, 3-chlorobenzyl group, 4-chlorobenzyl group, 2,4-dichlorobenzyl group, 2-hydroxybenzyl group, 3-fluorobenzyl group, 4-nitrobenzyl group, 4-bromobenzyl group, 4 -Fluorobenzyl group, 3-nitrobenzyl group, 4-propylbenzyl group, 3,5-difluorobenzyl group, 2-cyanobenzyl group, 2-acetaminobenzyl group, 4-acetaminobenzyl group, 4-methoxycarbonylbenzyl Group, 4-dimethylaminobenzyl group, 4-methoxybenzyl group, 3-trimethylsilyloxybenzyl group, 3-trimethyl A fluoromethylbenzyl group, 4-butyldimethylsilyloxybenzyl group, 2-methyloxybenzyl group, 4-trimethylsilyloxybenzyl group, 4-methylthiobenzyl group and the like can be mentioned.
In addition, examples of the substituent represented by R ₂ include a hydrogen atom, a pentasaccharide (for example, a 1-ribofuranosyl group, a 1-lyxofuranosyl group, a 1-xylofuranosyl group, a 1-arafurofanosyl group, and the like), and a hexanose. Examples include sugars (for example, 1-glucosyl group, 1-galactosyl group, 1-gulose group, 1-mannosyl group, 1-allose group, etc.), and specific examples include the following compounds. Can be mentioned.

As the component (B), 6-benzylaminopurine, 6- (4-methylbenzylamino) purine and the like are preferable.
The content of these components (B) is usually 0.0001 to 10%, preferably 0.01 to 5%, based on the total amount of the various hair nurturing composition.
When the content of the component (B) is less than 0.0001%, the hair nurturing effect may not be sufficiently exhibited. On the other hand, when the content exceeds 10%, the effect is not usually exhibited.
In the present invention, the amphiphilic polymer of the above component (A) and the 6-benzylamino represented by the above general formula (I) as the component (B) from the standpoint of further effects of the present invention. The content ratio [(A) / (B)] to at least one selected from purines and / or derivatives thereof is preferably 1/500 to 20/1, particularly preferably 1/50 to mass ratio. 10/1 is desirable.

In the present invention, it is preferable to further contain vitamins as the component (C) from the viewpoint of further improving the effects of the present invention, activating cells, and enhancing intracellular energy metabolism.
Examples of vitamins that can be used include retinol, retinal, vitamin A1 acid, vitamin A1 acid ester, acetate retinol, retinol palmitate, thiamine nitrate, thiamine hydrochloride, thiamine disulfide compound, riboflavin, flavin nucleotide, flavin tetrabutyrate. Rate, riboflavin tetranicotinate, pyridoxine dicaprylate, pyridoxine hydrochloride, pyridoxal hydrochloride, pyridoxamine hydrochloride, cyanocobalamin, nicotinic acid, nicotinic acid amide, benzyl nicotinate, pantothenic acid, pantothenate, pantothenyl alcohol, pantothenyl ethyl ether, biotin , Biocytin, ascorbic acid, ascorbate, ascorbate, vitamin Ds, tocopherol, tocopherol acetate , Ubiquinone, plastoquinone, vitamin Ks and the like.
Among these vitamins, those having blood circulation promoting action are particularly preferable, and specifically, use of tocopherol acetate, nicotinic acid amide, benzyl nicotinate, pantothenyl alcohol, and pantothenyl ethyl ether is desirable.

The content of the component (C) can be appropriately adjusted according to the content of the component (A), the component (B), and the like. It is desirable that the content be 001 to 5%, particularly preferably 0.01% to 1%.
When the content of this component (C) is less than 0.001%, the target vitamins-containing effect may not be sufficiently exerted. On the other hand, if it exceeds 5%, the effect is usually higher than that. It is not demonstrated.

In addition to the above essential components, the hair nurturing composition of the present invention can contain optional components in addition to the above components, as long as the effects of the present invention are not impaired. Examples of such components include purified water, ethanol, nonionic surfactants, saccharide surfactants and other surfactants, fats and oils, polymer resins, colorants, fragrances, ultraviolet absorbers, There may be mentioned at least one of medicinal ingredients such as hormones, vasodilators, amino acids, anti-inflammatory agents, skin function enhancers and keratolytic agents.
Examples of the surfactant include polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil mono- or isostearate, and glycerin fatty acid ester. Examples of the fats and oils include polyhydric alcohol fatty acid ester (tri-2 ethyl ester). Glyceryl hexanoate, trimethylolpropanoic acid triisostearate), safflower oil, evening primrose oil, jojoba oil, etc., as amino acids, for example, methionine, serine, glycine, cystine, etc., and further as a keratolytic agent, Salicylic acid, resorcin, etc., as the polymer resin, for example, amphoteric, cationic, anionic and nonionic polymers, and as the UV absorber, at least one kind of octyl methoxycinnamate, oxybenzone, urocanic acid, etc. It is done.

  When the hair nurturing composition of the present invention contains a fragrance, the fragrance used is similar to the fragrance and fragrance composition described in JP-A-2003-95895. The fragrance composition is preferably contained in an amount of 0.00001 to 50% with respect to the total amount of the agent composition, and more preferably 0.0001 to 30%.

The hair nurturing composition of the present invention can be used as an external preparation in the form of a uniform solution, lotion, gel or the like according to a conventional method.
Further, the hair nurturing composition of the present invention can take the form of an aerosol composition, in which case, in addition to the above components, lower alcohols such as n-propyl alcohol or isopropyl alcohol; butane, propane, Combustible gases such as isobutane, liquefied petroleum gas, and dimethyl ether; compressed gases such as nitrogen gas, oxygen gas, carbon dioxide gas, and nitrous oxide gas can be contained.

  In the hair nurturing composition of the present invention configured as described above, the amphiphilic polymer of the component (A) as an essential component and the general formula (I) as a component of (B) 6 -A hair nurturing composition containing at least one selected from benzylaminopurine and / or a derivative thereof in an arbitrary concentration, preferably in the range of the above contents and content ratios, exhibits an excellent hair nurturing effect. In addition, a hair nurturing composition with high immediate effect that improves the bending hardness of the hair can be obtained, and furthermore, by incorporating vitamins (C), a particularly excellent hair nurturing effect is exhibited. In addition, a hair nurturing agent composition with high immediate effect and improved bending hardness of hair can be obtained.

  EXAMPLES Next, although an Example and a comparative example demonstrate this invention further in detail, it is not limited to the following Example etc.

[Examples 1-7 and Comparative Examples 1-5]
About the test sample of Examples 1-7 used as the scope of the present invention and the test sample of Comparative Examples 1-5 outside the scope of the present invention, the nourishing hair composition of each composition shown in Tables 1 and 2 below (total amount 100) Mass%) was prepared by a conventional method and used as a sample.
About each obtained hair-growing composition, the hair-growth effect (acceleration days, hair quality improvement feeling) and hair physical property (bending rigidity change rate) were evaluated by the following evaluation method.
These results are shown in Tables 1 and 2 below. Details of the raw material names used in Examples and the like (including Examples 8 to 15 described later) are shown in Tables 3 and 4 below.

[Test method for hair growth effect]
I-1. Hair-growth effect by mice Hair removal was performed on the back of C3H / Heslc mice in the rest period of the hair cycle, and 10 mice per group were used for the experiment. The test sample was applied to the back part from which hair had been removed in an amount of 0.1 mL each once a day. The hair growth effect of each test sample was measured by measuring the hair growth area on the back of the mouse hair removal and comparing it with the ratio to the hair removal area.
The number of days required for 50% hair growth rate for each test sample was examined, and the number of days that reached 50% hair growth rate was shortened as compared with the case where ethanol alone was applied as “acceleration days” in the table.

I-2. Effect of improving hair quality The test sample within the scope of the present invention and the test sample outside the scope of the present invention were tested for the therapeutic effect of those components on diffuse alopecia by the following method.
The subjects were 64 female (34-65 years old) female diffuse alopecia volunteers who were randomly assigned to a total of 8 groups of 8 as a test drug group and a control group.
In the test, an appropriate amount was applied from the forehead to the top of the head twice a day in the morning and at night. The administration period was 2 weeks.
At the end of the test (after 2 weeks), the degree of improvement of the hair condition compared to before the start of the test was evaluated by the subject himself by the following four criteria (improvement, mild improvement, unchanged, worsening).
Judgment criteria:
Improvement of hair condition Improvement: The volume of the entire hair is increased, and each hair has a natural elasticity equivalent to normal hair.
Minor improvement: A slight volume appears in the whole hair, and a firmness is felt. Unchanged: No change in hair quality is observed. Deterioration: No volume, soft hair. In Tables 1 and 2 below, the percentage of people who actually felt the improvement effect was described as the hair quality improvement actualization rate.

[Evaluation method of hair properties]
An individual hair bundle having an average hair diameter of 65 μm and a length of about 30 cm was subjected to the experiment.
2 g of the test sample was uniformly applied to a hair bundle of 10 g, and then washed with a 30% aqueous solution of sodium polyoxyethylene alkyl ether sulfate. After the above coating and washing treatments were repeated 15 times, the bending stiffness of the hair before and after the test was measured using KES-SH (manufactured by Kato Tech Co., Ltd.), and the bending stiffness change rate before and after the treatment was determined. Calculated by the following formula. The higher the numerical value of the bending stiffness change rate, the better the physical properties of the hair (the bending hardness of the hair).
Bending stiffness change rate (%) = [(Bending stiffness after treatment) / Bending stiffness before test] × 100

  As is clear from the results of Table 1 and Table 2 above, the test samples (Examples 1 to 7 in Table 1) within the scope of the present invention all exhibit excellent hair growth effects and bending rigidity change rates. On the other hand, it was found that none of the test samples outside of the scope of the present invention (Comparative Examples 1 to 5 in Table 2) exhibited excellent characteristics.

[Examples 8 to 15]
Next, examples in which the scalp hair composition of the present invention is applied to an actual product (hair growth agent, hair growth spray, essence for scalp, hair growth hair spray, hair growth tonic, hair growth jet spray, hair removal prevention tonic) are shown. In addition, the hair-care agent composition of each following Example was prepared according to the usual method of each dosage form according to each composition. In addition, the unit of the following compounding quantity is "mass%", and the whole quantity is 100 mass%.

Example 8 (hair restorer)
Ingredients
6-Benzylaminopurine 0.5
Monopentadecanoic acid glyceride 3.0
DL-α-tocopherol acetate 0.1
Vinylpyrrolidone / vinyl acetate copolymer (molar ratio 7/3) 0.5
Coleus-Forskori root extract 0.5
Glycerin 0.5
Palm oil fatty acid sorbitan 1.0
Sucrose myristic acid ester 0.5
Monomyristic acid decaglycerin 1.0
Lauryldimethylaminoacetic acid betaine 0.3
Amphoteric polymer * 0.2
Succinic acid 0.1
Fragrance * 0.5
Purified water 0.3
99% ethanol balance *: N-methacryloyloxyethyl-N, N-dimethylammonium / α-N-methylcarboxybetaine / alkyl methacrylate copolymer *: Use composition A in Table 2 described in JP-A-2003-113019

Example 9 (hair growth spray)
Ingredients
6-Benzylaminopurine 0.1
Monopentadecanoic acid glyceride 2.0
β-glycyrrhetinic acid 0.1
Vinylpyrrolidone / dimethylaminoethyl methacrylate copolymer 0.7
Amphoteric polymer * 0.2
Succinic acid 0.3
Sucrose laurate 0.5
Sorbitan monolaurate 0.5
Glycerin 0.8
Decaglycerin monomyristic acid 0.5
L-Menthol 0.1
DL-α-tocopherol acetate 0.1
Pantothenyl alcohol 1.0
Purified water 0.3
Fragrance * 0.5
99% ethanol remaining (dilution filling solution)
80% of the above stock solution
LPG 20%
*: N-methacryloyloxyethyl-N, N-dimethylammonium / α-N-methylcarboxybetaine / alkyl methacrylate copolymer *: B composition shown in Table 2 of JP2003-1113019 is used.

Example 10 (Scalp Essence)
Ingredients
6-Benzylaminopurine 0.7
Isopropylmethylphenol 0.5
Nicotinamide 0.3
β-glycyrrhetinic acid 0.2
Polyethylene glycol 400 2.5
POE (8) oleyl ether 1.5
Sorbitan monopalmitate 0.9
Tetraoleic acid POE (30) Sorbit 0.5
Coleus Forskori Root Extract 0.5
Rosemary extract 0.3
Pentaglycerin monolaurate 0.3
Vinylpyrrolidone / vinyl acetate copolymer (molar ratio 6/4) 0.2
L-Menthol 0.1
Citric acid 0.3
Fragrance * 0.3
99% ethanol 70.0
Purified water balance *: Uses the C composition shown in Table 2 of JP2003-1113019

Example 11 (hair growth hair spray)
Ingredients
6-Benzylaminopurine 1.0
6- (4-Methylbenzylamino) purine 0.5
Natural vitamin E 0.5
Nicotinamide 0.5
Isopropylmethylphenol 0.3
Piroctone olamine 0.1
Sucrose myristic acid ester 0.5
Polyethylene glycol 400 5.0
Coleus Forskori Root Extract 2.0
Ethyl oleate 1.0
Vinylpyrrolidone / vinyl acetate copolymer (molar ratio 5/5) 0.5
POE (40) hydrogenated castor oil 1.0
Tetraoleic acid POE (30) Sorbit 0.8
Citric acid 0.1
Lily extract 0.01
L-Menthol 0.3
Fragrance * 0.5
99% ethanol 75.0
Purified water balance *: Use composition D in Table 2 described in JP-A-2003-113019 (dilution liquid)
70% of the above stock solution
Dimethyl ether 30%

Example 12 (hair growth tonic)
Ingredients
Monopentadecanoic acid glyceride 3.0
6-Benzylaminopurine 0.4
D-pantothenyl alcohol 0.4
β-glycyrrhetinic acid 0.1
Assembly extract 1.0
Piroctone olamine 0.1
Vinylpyrrolidone / vinyl acetate copolymer (molar ratio 7/3) 0.1
3,5- (Di-D-glucopyranosyl) gallic acid 0.1
Pentaglycerin monooleate 0.8
Coleus forskori root extract 1.2
Stearyltrimethylammonium chloride 0.8
Sorbitan monolaurate 0.5
Lauryldimethylaminoacetic acid betaine 0.3
Amphoteric polymer * 0.2
Succinic acid 0.1
Fragrance * 0.5
Purified water 0.3
99% ethanol balance *: N-methacryloyloxyethyl-N, N-dimethylammonium / α-N-methylcarboxybetaine / alkyl methacrylate copolymer *: E composition in Table 2 described in JP2003-1113019

Example 13 (hair growth jet spray)
Ingredients
Monopentadecanoic acid glyceride 3.0
6-Benzylaminopurine 0.4
Nicotinamide 0.4
Tocopherol acetate 0.1
Piroctone olamine 0.1
Polyvinylpyrrolidone / dimethylaminopropyl methacrylamide copolymer 1.0
Diglucosyl gallic acid 0.05
Propylene glycol 6.0
Stearyltrimethylammonium chloride 0.6
Decaglycerin monomyristic acid 0.5
Sorbitan monolaurate 5.0
Polyoxyethylene oleyl ether 0.5
Yukinoshita Extract 1.0
L-Menthol 0.2
Nylon powder 1) 1.5
Fragrance * 0.2
99% ethanol remainder 1): Nylon 12, average particle size of about 10 μm
*: Uses the B composition in Table 2 of JP2003-1113019
(Filling liquid for dilution)
80% of the above stock solution
Dimethyl ether 20%

Example 14 (hair removal prevention tonic)
Ingredients
6-Benzylaminopurine 0.01
Monopentadecanoic acid glyceride 0.05
Pantothenyl ethyl ether 0.3
β-glycyrrhetinic acid 0.2
Tocopherol acetate 0.1
Benzyl nicotinate 0.1
Piroctone olamine 0.1
Sorbitan monolaurate 2.0
Sucrose fatty acid ester 0.3
Decaglycerin monomyristic acid 0.6
Vinylpyrrolidone / vinyl acetate copolymer (molar ratio 5/5) 0.3
Amphoteric polymer * 0.5
Ethyl oleate 1.5
Coleus forskori root extract 1.5
Glycerin 1.0
Monomyristic acid glyceride 0.05
Pentadecanoic acid 0.01
Myristic acid 0.01
Dipentadecanoic acid glyceride 0.05
Succinic acid 0.1
L-Menthol 0.1
Fragrance * 0.2
Purified water 0.01
99% ethanol remainder *: N-methacryloyloxyethyl-N, N-dimethylammonium-α-N-methylcarboxybetaine / alkyl methacrylate copolymer *: Uses the C composition of Table 2 described in JP-A-2003-113019

Example 15 (hair restorer)
Ingredients 6-Benzylaminopurine 0.5
Isopropylmethylphenol 0.1
Nicotinamide 0.1
β-glycyrrhetinic acid 0.02
Coleus extract 1.0
l-Menthol 0.1
Vinylpyrrolidone / dimethylaminopropyl methacrylamide copolymer 0.5
Tetraoleic acid POE (40) Sorbit 0.2
POE (30) POP (6) decyl tetradecyl ether 0.8
Vinylpyrrolidone / vinyl acetate copolymer (molar ratio 6/4) 0.1
Citric acid 0.05
99% ethanol 55.0
Residual amount of water

  When the hair-growing effect and the bending physical properties of the hair were evaluated in the same manner as in Examples 1 to 7 for the hair-growing compositions of various dosage forms of Examples 8 to 15, it was found that all showed excellent effects.

Claims (5)

(A) Amphiphilic polymer 0.0001 to 10% by mass comprising a copolymer containing vinylpyrrolidone as a structural unit, (B) 6-benzylaminopurine and its derivatives represented by the following general formula (I) A hair nourishing composition comprising at least one selected from 0.0001 to 10% by mass.

(A) an amphiphilic polymer comprising a copolymer containing vinylpyrrolidone as a constituent unit, and (B) 6-benzylaminopurine and / or a derivative thereof represented by the general formula (I) as a component The hair-restoring hair-care composition according to claim 1, wherein the content ratio [(A) / (B)] with at least one selected from the group is 1/500 to 20/1 by mass ratio. . Amphiphilic polymer according to claim 1 or 2, and vinylpyrrolidone as a constituting unit, vinyl caprolactam, crotonic acid, polyoxyethylene, polyoxypropylene, polyoxyethylene (meth) acrylate, polyoxyethylene (meth ) Acrylate, polyoxyethylenebutyl (meth) acrylate, N, N-dimethylaminoethyl (meth) acrylate, N, N-diethylaminoethyl (meth) acrylate, N, N-dimethylaminopropyl (meth) acrylate, N, N -Diethylaminopropyl (meth) acrylate, N, N-dibutylaminoethyl (meth) acrylate, N, N-dimethylaminopropyl (meth) acrylate, N, N-dimethylaminoethyl (meth) acrylamide, N, N-diethylaminopropyl Pyr (meth) acrylamide, vinyl acetate, acrylic acid ester, methacrylic acid ester, styrene, dimethylaminoethyl methacrylate, dimethylaminopropyl methacrylamide, vinyl alcohol, vinyl propionate, polypropylene, vinyl butyral, vinyl methyl ether, ethyl maleate And a copolymer composed of one or more structural units selected from butyl maleate, vinyl neodecanoate, alkyl acrylate, octylamide acrylate, amide acrylate, hydroxyalkyl acrylate and methoxyalkyl acrylate. Nourishing hair composition. The amphiphilic polymer according to any one of claims 1 to 3 , wherein the vinyl pyrrolidone / vinyl acetate copolymer, vinyl pyrrolidone / dimethylaminoethyl methacrylate copolymer, vinyl pyrrolidone / aminopropyl methacrylic acid acrylate A hair nurturing composition that is a copolymer . Furthermore, (C) Hair nourishing agent composition as described in any one of Claims 1-4 containing vitamins.