JPH07206647A - Hair tonic - Google Patents

Abstract

PURPOSE:To obtain a hair tonic, containing an extract of peppermint (Mentha piperita L.) and having excellent alopecia preventing and hair growing effects. CONSTITUTION:This hair tonic contains an extract prepared by extracting a leaf or the whole herb of peppermint with a solvent (e.g. hot water-ethanol) as an active ingredient in an amount of 0.005-20-wt.% expressed in terms of a dried substance in the total amount of the hair tonic. Combinations of the extract of the peppermint further with an anionic surfactant and a surfactant having nitrogen in the molecule other than the anionic surfactant; the extract of the peppermint with an amphoteric surfactant, a semipolar surfactant and a nonionic surfactant having nitrogen in the molecule and the extract of the Shiraia bumbusicola with an amine oxide provide an excellent hair tonic. The hair tonic is prepared into a form applicable to the exodermis such as a liquid, an emulsion or an ointment, directly applied to or sprayed on the skin and percutaneously administered. The daily dose thereof is 0.01-100mg/kg.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair nourishing agent having excellent hair loss-preventing and hair-growing effects. The present invention is particularly used in the fields of medicines, quasi drugs, and cosmetics.

[0002]

2. Description of the Related Art Conventionally, the causes of baldness and hair loss are activation of male hormones in organs such as hair roots and sebaceous glands, decrease in blood flow to hair follicles, excessive secretion of sebum, and generation of peroxides. Abnormalities of the scalp are considered. For this reason, conventional hair nourishing agents are generally blended with compounds having the action of removing or reducing the above causes. For example, vitamins such as vitamin B and vitamin E, serine,
Prevents alopecia by blending amino acids such as methionine, vasodilators such as assembly extract and acetylcholine derivatives, purple root extract, anti-inflammatory agents such as hinokitiol, female hormone agents such as estradiol, and skin function enhancers such as cepharanthin. And used in therapy.

[0003]

However, in spite of various attempts as described above, conventional hair nourishing agents do not always have sufficient hair nourishing effects such as hair loss prevention and hair growth effects. It was This is probably because there are various causes of hair loss and the mechanism of hair growth is very complicated.

In view of the insufficient hair-feeding effect as described above, the present inventor searched for a substance which is effective for hair loss and has excellent hair-preventing and hair-growing effects. As a result, they have found that the extract of peppermint or the extract of peppermint and a specific surfactant have strong hair loss prevention, hair growth and hair-growth effects, and completed the present invention.

[0005]

[Means for Solving the Problems] That is, claim 1 of the present invention is a hair nourishing agent characterized by containing an extract of peppermint. Claim 2 contains an extract of peppermint, one or more anionic surfactants, and one or more surfactants other than anionic surfactants having a nitrogen atom in the molecule. A hair nourishing agent characterized by Claim 3 contains an extract of peppermint, one or more of an amphoteric surfactant and a semipolar surfactant, and one or more of a nonionic surfactant having a nitrogen atom in the molecule. A hair nourishing agent characterized by A fourth aspect of the present invention is a hair nourishing agent containing an extract of peppermint and an amine oxide.

The structure of the present invention will be described in detail below. The following plant extracts are used as the plant extract used in the present invention. That is, peppermint (Mentha pi)
perti L. Other names are leaves and whole plants.

The peppermint extract used in the present invention may be prepared by using peppermint leaves or whole grass as a solvent, for example, hot water, a lower alcohol such as methanol or ethanol or a hydrous lower alcohol, or propylene glycol, 1,3. -It is obtained by extraction with a polyhydric alcohol such as butylene glycol or a hydrous alcohol such as a hydrous polyhydric alcohol.

The amount of the peppermint extract used in the present invention is 0.005 as a dry matter in the total amount of the hair nourishing agent.
It is 20% by weight, preferably 0.01 to 5% by weight.
If it is less than 0.005% by weight, the effect of the present invention is not sufficiently exhibited, and if it exceeds 20% by weight, it is not preferable in terms of formulation.

The anionic surfactant according to claim 2 is a carboxylic acid group, a sulfonic acid group, a sulfate ester group,
Anionic surfactants having one or more kinds of phosphate ester groups in the molecule are mentioned. As those having a carboxylic acid group, fatty acid soap, ether carboxylic acid and salts thereof, carboxylic acid salts such as condensates of amino acids and fatty acids, and as those having a sulfonate,
Alkyl sulfonates, sulfosuccinic acids, ester sulfonates, alkylallyl and alkylnaphthalene sulfonates, N-acyl sulfonates, formalin condensed sulfonates, and the like are sulfated oils having a sulfate ester group. , Ester sulfates, alkyl sulfates, ether sulfates, alkylallyl ether sulfates, amide sulfates and the like, those having a phosphate ester group include alkyl phosphates, amide phosphates, ether phosphates,
An alkyl allyl ether phosphate etc. can be mentioned. One kind or two kinds or more are arbitrarily selected from these.

As the surface active agent having a nitrogen atom in the molecule other than the anionic surface active agent according to claim 2, an amphoteric surface active agent having a nitrogen atom in the molecule, a semipolar surface active agent, a nonionic surface active agent. An activator, a cationic surfactant, etc. can be mentioned. As the amphoteric surfactant, N, N
-Dimethyl-N-lauryl-N-carboxymethylammonium betaine, N, N-dimethyl-N-oleyl-
Carboxybetaine such as N-carboxymethylammonium betaine, 2-lauryl-N-carboxyethyl-
N-hydroxyethyl imidazolinium betaine, 2-
An imidazoline derivative such as lauryl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine,
N-coconut alkyl-β-aminopropionic acid sodium salt,
Examples thereof include aminocarboxylic acid salts such as N-coconut alkyl-β-iminodipropionic acid-di-soda salt, sulfobetaine and aminobetaine. Examples of the semipolar surfactant include dimethyllaurylamine oxide and bis- (2-hydroxyethyl) laurylamine oxide. Examples of the nonionic surfactant include fatty acid alkanolamides, polyoxyethylene fatty acid amides, alkanolamine esters, and polyoxyethylene alkylamines. As the cationic surfactant,
Examples thereof include fatty acid amine salt, alkyl quaternary ammonium salt, aromatic quaternary ammonium salt, pyridinium salt and imidazolium salt. One kind or two kinds or more are arbitrarily selected from these.

As the amphoteric surfactant according to claim 3,
Carboxybetaines such as N, N-dimethyl-N-lauryl-N-carboxymethylammonium betaine and N, N-dimethyl-N-oleyl-N-carboxymethylammonium betaine, 2-lauryl-N-carboxyethyl-N-hydroxy. Imidazoline derivatives such as ethylimidazolinium betaine and 2-lauryl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, N-coconut alkyl-β-aminopropionic acid sodium salt, N-coconutalkyl-β-iminodipropionic acid An aminocarboxylic acid salt such as soda salt, sulfobetaine,
Amino betaine and the like can be mentioned.

Examples of the semipolar surfactant according to claim 3 include dimethyllaurylamine oxide and bis- (2-hydroxyethyl) laurylamine oxide.

Examples of the nonionic surfactant according to claim 3 include fatty acid alkanolamides, polyoxyethylene fatty acid amides, esters of alkanolamines, polyoxyethylene alkylamines and the like.

As the amine oxide according to claim 4,
The thing of the following general formula (A)-(C) is mentioned. General formula (A):

[Chemical 1] (In the formula, R1, R2 and R3 represent a linear or branched saturated or unsaturated hydrocarbon group having 1 to 24 carbon atoms,
At least one of 1, R2 and R3 represents a linear or branched saturated or unsaturated hydrocarbon group having 8 or more carbon atoms. ) Specific examples of the amine oxide represented by the general formula (A) include dimethyllaurylamine oxide, dimethylmyristylamine oxide, dimethylcetylamine oxide,
Examples thereof include dimethylstearylamine oxide, dimethyloleylamine oxide, dimethylbehenylamine oxide, and methyldilaurylamine oxide. General formula (B):

[Chemical 2] (In the formula, R4 represents a linear or branched saturated or unsaturated hydrocarbon group having 8 to 24 carbon atoms.) General formula (C):

[Chemical 3] (In the formula, R5 represents a linear or branched saturated or unsaturated hydrocarbon group having 8 to 24 carbon atoms, and n represents an integer of 1 to 5.) In the present invention, one of these amine oxides Alternatively, two or more kinds are arbitrarily selected and used.

An anionic surfactant according to claim 2,
The total compounding amount of surfactants having a nitrogen atom in the molecule other than the anionic surfactant is 0.001 to 1 in the total amount of the hair nourishing agent.
10% by weight is preferable, and more preferably 0.01 to 5
% By weight. The ratio of the anionic surfactant to the surfactant having a nitrogen atom in the molecule other than the anionic surfactant is preferably 20: 1 to 1:20 in terms of molecular ratio, more preferably 10: 1. ~ 1:10. The total compounding amount of one or more of the amphoteric surfactant and the semipolar surfactant according to claim 3 and one or more of the nonionic surfactant having a nitrogen atom in the molecule is a 0.001 to 10% by weight is preferable in the total amount of hair,
More preferably, it is 0.01 to 5% by weight. The ratio of one or more amphoteric surfactants and semipolar surfactants to one or more nonionic surfactants having a nitrogen atom in the molecule is 20: 1 in terms of molecular ratio.
To 1:20 are preferable, and more preferably 10: 1 to
It is 1:10. The blending amount of the amine oxide according to claim 4 is preferably 0.0001 to 20% by weight based on the total amount of the hair nourishing agent. If it is less than 0.0001% by weight, a sufficient hair nourishing effect cannot be obtained, and if it exceeds 20% by weight, it is not preferable in terms of preparation or skin irritation.

In the present invention, the hair nourishing agent containing the extract of peppermint exerts a sufficient hair nourishing effect, but the extract of peppermint further has an anionic surfactant and an intramolecular substance other than the anionic surfactant. The hair nourishing agent formulated by combining the above with a surfactant having a nitrogen atom exhibits a superior hair nourishing effect. Similarly with an extract of peppermint,
A combination of one or more amphoteric surfactants and semipolar surfactants with one or more nonionic surfactants having a nitrogen atom in the molecule, peppermint extract and amine oxide A combination of and also exhibits an excellent hair nourishing effect.

In the hair nourishing agent according to the present invention, in addition to the peppermint extract described above, various components generally used in cosmetics, quasi drugs, pharmaceuticals, etc., such as oil, for example, higher fatty acid, solid paraffin, liquid paraffin, silicone oil. ,
Squalane, etc .; moisturizers, such as hyaluronic acid, propylene glycol, maltitol, atelocollagen, sodium lactate, etc .; thickeners, quince gums, carboxyvinyl polymers, xanthan gum, etc .; oils such as glyceryl monooleate, nicotinamide, nicotine. Benzyl acid, vitamin E acetate, cembly extract, vasodilator such as carpronium chloride, cembly extract, acetylcholine derivative, amino acids such as serine and methionine, vitamin B6, vitamin E and its derivatives, vitamins such as biotin, pantothenic acid And derivatives thereof glycyrrhetinic acid and derivatives thereof, nicotinic acid esters such as benzyl nicotinate, skin function enhancers such as cepharanthin,
Female hormone agents such as estradiol may also be mixed at the same time. In addition, additives usually used in hair nourishing agents,
For example, hinokitiol, hexachlorophene, benzalkonium chloride, cetylpyridinium chloride, undecylenic acid, antibacterial agents such as trichlorocarbanilide and bithionol, cooling agents such as menthol, salicylic acid,
Zinc and its derivatives, drugs such as lactic acid and its alkyl esters, organic acids such as citric acid, amino acids such as arginine, olive oil, squalane, liquid paraffin, isopropyl myristate, oils such as higher fatty acids and higher alcohols, glycerin, propylene Polyhydric alcohol such as glycol, fragrance, antioxidant, UV absorber,
Dyes, ethanol, water, humectants, thickeners and the like can be appropriately added within a range that does not impair the effects of the present invention. Further, for decolorization of the extracted extract, a treatment with an adsorbent such as activated clay, silica gel or activated carbon alumina may be performed.

The hair nourishing agent of the present invention may be in any form as long as it has properties applicable to the outer skin such as liquid, emulsion and ointment. The hair nourishing agent of the present invention is administered by percutaneous administration by directly applying or spraying on the skin. Further, the dose of the hair nourishing agent of the present invention cannot be clearly determined because it varies depending on age, individual differences, medical conditions, etc., but generally when administered to humans, the dose is 1 kg of body weight and 0.01 to 100 mg per day, It is preferably 0.1 to 10 mg, and this amount can be administered once a day or divided into 2 to 4 times.

[0019]

EXAMPLES Next, the production method and the hair-retaining action of the hair nourishing agent of the present invention will be described in more detail with reference to examples. The present invention is not limited to this. The blending amount is% by weight.

Example 1 To 90% of 70% ethanol was added 1.0% of a dried product of peppermint methanol extract, ion-exchanged water (residual) and 1.0% of hydrogenated castor oil ethylene oxide (40 mol) adduct, and dissolved by stirring. Then, ion-exchanged water was added and mixed to obtain a liquid hair nourishing agent of Example 1.

Example 2 70% ethanol 90%, peppermint 70% ethanol extract dry matter 0.1%, deionized water (residual), sodium oleate 0.01%, dodecylbenzenesulfonic acid 0.49% and curing Castor oil ethylene oxide
(40 mol) 0.5% of an adduct was added and dissolved by stirring, and then ion-exchanged water was added and mixed to obtain a liquid hair nourishing agent of Example 2.

Example 3 To 90% of 70% ethanol, 0.05% of dried ethyl acetate extract of peppermint, ion-exchanged water (residual), 0.1% of lauryldimethylamine oxide and hydrogenated castor oil ethylene oxide (60 mol) were added. Thing 0.9
%, And dissolved by stirring, and then ion-exchanged water was added and mixed to obtain a liquid hair nourishing agent of Example 3.

Example 4 To 70% ethanol 90%, 1.0% dried product of acetone extract of peppermint, ion-exchanged water (residual), sorbitan sesquioleate 0.4% and hydrogenated castor oil ethylene oxide (40 mol) were added. 0.6% of the product was added and dissolved by stirring, and then ion-exchanged water was added and mixed to obtain a liquid hair nourishing agent of Example 4.

Example 5 0.3% of 40% ethanol extract dry product of peppermint in 90% of 70% ethanol, deionized water (residual), lauroyl taurine 0.1%, cetylpyridinium chloride 0.01% and hardening Castor oil ethylene oxide (40 mol) adduct 0.89% was added and dissolved by stirring, and then ion-exchanged water was added and mixed to obtain a liquid hair nourishing agent of Example 5.

Hair growth test The hair growth tests of Examples 1 to 5 and Comparative Example 1 were carried out using C3H / HeNCrJ mice in the resting phase of the hair cycle, by the method of Ogawa et al. (Normal and Abnormal Epidermal Difference [Normal and Abnormal Epi
dermal Differentiation], M. Seiji and IABernst
edited by ein, pp. 159-170, 1982, University of Tokyo). That is, one group of 10 mice was divided into 6 groups of Examples 1 to 5 and Comparative Example 1 (70% ethanol), the back of each mouse was shaved with a clipper and a shaver, and each sample was taken for 1 day. 0.1 ml each was applied once. The results of the hair regrowth area (after 25 days) of the samples of Examples 1 to 5 and Comparative Example 1 were as follows.

Sample Hair Regeneration Area Comparative Example 1 5.0% Example 1 95.0% Example 2 88.5% Example 3 75.5% Example 4 90.0% Example 5 83.0% As is clear from the above results, a significant effect on hair regrowth was observed in each Example (the present invention).

Hair nourishing test Next, in order to examine the hair nourishing effects such as hair loss prevention and hair growth effect of the hair nourishing agent of the present invention, a trichogram test was conducted on humans. The hair nourishing agents of Examples 1 to 5 and Comparative Example 1 were used. The trichogram test is described below. The hair roots of the removed hair before and after the use of the hair nourishment were observed under a microscope, and the number of resting hair roots was counted from the form of the hair root, and the hair nourishing action of the hair nourishing agent was compared by increasing or decreasing the ratio. Resting hair roots are hair roots that have stopped growing, and it has been recognized that people who complain of hair loss have a higher proportion of resting hair roots than normal people. Each hair nourishment of Examples 1 to 5 and Comparative Example 1 was applied to the scalp of 10 male subjects twice a day, once for 2 m.
Each subject was continuously applied for 6 months, and 100 hairs were removed from each subject immediately before the application and immediately after the application for 6 months, and each hair root was examined and an actual use test was conducted.
The results are shown in Table 1.

[0028]

[Table 1]

As is clear from the results in Table 1, the hair-feeding effect is excellent in each of the examples.

Example 6 (Phase A) Dried Ethanol Extract of Peppermint 1.0 Polyoxyethylene (60 mol) Addition-hardened castor oil 2.0 Glycerin 10.0 Dipropylene glycol 10.0 1,3-Butylene glycol 5.0 Polyethylene glycol 1500 5.0 (Phase B) Cetyl isooctanoate 10.0 Squalane 5.0 Vaseline 2.0 Propylparaben 2.0 (C phase) Carboxyvinyl polymer 1% aqueous solution 30.0 Sodium hexametaphosphate 0.03 Ion exchanged water 8.35 (D phase) Ion exchanged water 4.5 (E phase) Causticari 0.12 Ion exchanged water 5.0 ( Manufacturing method) Phases A and B are each melted by heating at 60 ° C, mixed and treated with a homomixer to form a gel. D to this
Add the phases slowly and disperse with a homomixer. Next, dissolved C phase was added thereto, and finally dissolved E phase was added and emulsified with a homomixer to obtain an O / W emulsion type hair nourishing agent. When this hair nourishing agent was subjected to a practical use test to humans as in Example 1, it was confirmed that the hair nourishing action was excellent.

Example 7 (Phase A) Liquid paraffin 5.0 Cetostearyl alcohol 5.5 Glyceryl monostearate 3.0 EO (20 mol) -2-Octyldodecyl ether 3.0 Propylparaben 0.3 Perfume 0.1 (Phase B) Peppermint ethanol extract dry matter 3.0 Glycerin 8.0 Dipropylene glycol 20.0 Polyethylene glycol 4000 5.0 Sodium hexametaphosphate 0.005 Ion-exchanged water 45.095 (Production method) Phases A and B are dissolved by heating and mixed, respectively,
The mixture was emulsified with a homomixer to obtain a creamy hair nourishing agent. When this hair nourishing agent was subjected to a practical use test on humans as in Example 1, it was confirmed that the hair nourishing effect was excellent.

Example 8 (Phase A) Liquid paraffin 10.5 Glyceryl monostearate 3.0 EO (20 mol) -2-Octyldodecyl ether 3.0 Propylparaben 0.3 Perfume 0.1 (Phase B) Peppermint ethanol extract dry product 1.0 Glycerin 10.0 Dipropylene Glycol 18.0 Polyethylene glycol 4000 5.0 Sodium hexametaphosphate 0.005 Ion-exchanged water 54.595 (Production method) Phases A and B are dissolved by heating and mixed, respectively.
The mixture was emulsified with a homomixer to obtain a creamy hair nourishing agent. When this hair nourishing agent was subjected to a practical use test on humans as in Example 1, it was confirmed that the hair nourishing effect was excellent.

Example 9 Peppermint Dry Ethanol Extract 2.0 Dried Sengoku 70% Ethanol Extract Dried 0.03 Dried scallop Propanol Extract Dried 0.1 Lauryl Dimethyl Aminoxide 2.0 Hardened Castor Oil Ethylene Oxide (40 mol) Adduct 2.0 95% Ethanol 54.0 Ions Exchanged water The remainder (production method) Ion exchanged water is added to 95% ethanol, hydrogenated castor oil ethylene oxide (40 mol) adduct and lauryl dimethylaminoxide are added, and then each plant extract is added and dissolved by stirring. When this hair nourishing agent was subjected to a practical use test on humans as in Example 1, it was confirmed that the hair nourishing effect was excellent.

Example 10 N-coconut lauryl-β-aminopropionate sodium 0.2 peppermint methanol extract dried product 1.0 sodium dodecylbenzenesulfonate 0.5 hydrogenated castor oil ethylene oxide (40 mol) adduct 1.0 95% ethanol 54.0 ion-exchanged water balance ( Production method) Ion-exchanged water was added to 95% ethanol, and hydrogenated castor oil ethylene oxide (40 mol) adduct, sodium dodecylbenzenesulfonate and N-
After adding coconut lauryl-β-aminopropionate sodium, the plant extract is added and dissolved by stirring. When this hair nourishing agent was subjected to a practical use test on humans as in Example 1, it was confirmed that the hair nourishing effect was excellent.

Example 11 Sodium dodecylbenzenesulfonate 0.1 Methanol extract dried product of peppermint 1.0 Dimethyllaurylamine oxide 0.5 Hydrogenated castor oil Ethylene oxide (40 mol) adduct 1.0 95% ethanol 54.0 Ion-exchanged water balance (production method) 95% ethanol Ion-exchanged water is added to the mixture, hydrogenated castor oil ethylene oxide (40 mol) adduct, dimethyllaurylamine oxide and sodium dodecylbenzenesulfonate are added thereto, and then a plant extract is added and dissolved by stirring. When this hair nourishing agent was subjected to a practical use test on humans as in Example 1, it was confirmed that the hair nourishing effect was excellent.

Example 12 Sodium lauryl sulfate 0.1 Methanol extract dried product of peppermint 1.0 Polyoxyethylene laurylamide 0.5 Hardened castor oil Ethylene oxide (40 mol) adduct 1.0 95% ethanol 54.0 Ion-exchanged water balance (production method) To 95% ethanol Ion-exchanged water is added, and hydrogenated castor oil ethylene oxide (40 mol) adduct, polyoxyethylene lauryl amide and sodium lauryl sulfate are added thereto, and then a plant extract is added and dissolved by stirring. When this hair nourishing agent was subjected to a practical use test on humans as in Example 1, it was confirmed that the hair nourishing effect was excellent.

Example 13 Sodium dodecylbenzenesulfonate 0.1 Methanol extract dried product of peppermint 1.0 N, N-dimethyl-N-lauryl-N-carboxymethylammonium betaine 0.5 Hydrogenated castor oil ethylene oxide (40 mol) adduct 1.0 95% ethanol 54.0 Ion-exchanged water balance (production method) Ion-exchanged water was added to 95% ethanol, and hydrogenated castor oil ethylene oxide (40 mol) adduct, N, N-dimethyl-N-lauryl-N-carboxymethylammonium betaine and dodecyl were added. After adding sodium benzenesulfonate, the plant extract is added and dissolved by stirring. As with Example 1, this hair nourishing agent was applied to a person,
As a result of a practical use test, it was confirmed that the hair nourishing effect was excellent.

Example 14 Bis- (2-hydroxyethyl) laurylamine oxide 0.1 Dry product of peppermint in methanol extract 1.0 Stearyl dimethylamine oxide 0.5 Hardened castor oil Ethylene oxide (40 mol) adduct 1.0 95% Ethanol 54.0 Ion-exchanged water balance ( Production method) Ion-exchanged water was added to 95% ethanol, and hydrogenated castor oil ethylene oxide (40 mol) adduct, stearyl dimethylamine oxide and bis-
After adding (2-hydroxyethyl) laurylamine oxide, the plant extract is added and dissolved by stirring. When this hair nourishing agent was subjected to a practical use test on humans as in Example 1, it was confirmed that the hair nourishing effect was excellent.

Example 15 Polyoxyethylene laurylamide 0.1 Methanol extract dried product of peppermint 1.0 Dimethyllaurylamine oxide 0.5 Hydrogenated castor oil Ethylene oxide (40 mol) adduct 1.0 95% ethanol 54.0 Ion-exchanged water balance (production method) 95% ethanol Ion-exchanged water was added to the mixture, hydrogenated castor oil ethylene oxide (40 mol) adduct, dimethyllaurylamine oxide and polyoxyethylenelaurylamide were added thereto, and then a plant extract was added,
Stir to dissolve. When this hair nourishing agent was subjected to a practical use test on humans as in Example 1, it was confirmed that the hair nourishing effect was excellent.

Example 16 Peppermint methanol extract dried product 1.0 dimethyllaurylamine oxide 0.5 hydrogenated castor oil ethylene oxide (40 mol) adduct 1.0 95% ethanol 54.0 ion-exchanged water balance (manufacturing method) ion-exchanged water was added to 95% ethanol After adding hydrogenated castor oil ethylene oxide (40 mol) adduct and dimethyllaurylamine oxide thereto, a plant extract is added and dissolved by stirring. When this hair nourishing agent was subjected to a practical use test on humans as in Example 1, it was confirmed that the hair nourishing effect was excellent.

Example 17 Dried Methanol Extract of Peppermint 1.0 Sodium Dodecylbenzene Sulfonate 0.2 Dimethyllaurylamine Oxide 0.5 Hardened Castor Oil Ethylene Oxide (40 mol) Adduct 1.0 95% Ethanol 54.0 Ion-exchanged Water Balance (Production Method) 95% Ethanol Ion-exchanged water is added to the mixture, hydrogenated castor oil ethylene oxide (40 mol) adduct, dimethyllaurylamine oxide and sodium dodecylbenzenesulfonate are added thereto, and then a plant extract is added and dissolved by stirring. When this hair nourishing agent was subjected to a practical use test on humans as in Example 1, it was confirmed that the hair nourishing effect was excellent.

[0042]

The hair nourishing agent of the present invention is excellent in hair loss prevention effect, hair growth effect and the like.

Claims (4)

[Claims] 1. A hair nourishing agent containing an extract of peppermint. 2. An extract of peppermint, one or more anionic surfactants, and one or more surfactants other than anionic surfactants having a nitrogen atom in the molecule. A hair nourishing agent characterized by: 3. A peppermint extract, one or more amphoteric surfactants and semipolar surfactants, and one or more nonionic surfactants having a nitrogen atom in the molecule. A hair nourishing agent characterized by: 4. A hair nourishing agent containing an extract of peppermint and an amine oxide.