JP2811481B2 - Hair restoration - Google Patents

Description

The present invention relates to a ginkgo biloba extract and a specific fungicide,
The present invention relates to a hair nourishing material that enhances and normalizes hair and scalp functions and has excellent hair-growing and hair-growing effects.

[Related Art] Conventionally, various hair nourishes have been used to prevent or treat various physiological symptoms such as baldness, thinning hair, dandruff and seborrhea.

These hair restorations include scalp blood circulation, lipid secretion suppression,
Although various drugs having various effects such as activation of hair mother cells have been blended, these drugs have not been able to be said to have a sufficient effect so far.

Recently, plant extracts such as crude drugs have attracted attention as hair restorers from the viewpoint of efficacy and safety. And among these crude drug extracts, ginkgo extract has been proposed as an excellent hair restorer.

However, although this ginkgo extract has a superior hair-growing effect as compared with the conventional one, it has not yet achieved a satisfactory and satisfactory hair-growing effect.

[Problems to be Solved by the Invention] Therefore, there has been a demand for the development of a hair restorer that is highly safe and has more excellent hair growth and hair growth effects.

[Means for Solving the Problems] In view of such circumstances, the present inventors have conducted intensive studies and as a result, the hair growth and hair growth effects of the Ginkgo biloba extract have been synergistically increased by combination with a specific fungicide. Being
Therefore, it has been found that a hair nourishing agent containing these two components is extremely effective and excellent, and has completed the present invention.

That is, the present invention contains 0.0001 to 10% by weight of a ginkgo extract and 0.0001 to 5% by weight of a fungicide selected from triclosan, alkyldiaminoethylglycine hydrochloride, trichlorocarbanilide and isopropylmethylphenol as essential components. The present invention provides a hair tonic characterized by the following.

Ginkgo biloba extract used as an essential component in the present invention includes ginkgo (Ginkgo biloba L.) leaves, flowers, branches,
It is obtained by extracting from fruits and the like. The extraction method is not particularly limited. For example, water, primary alcohols such as methyl alcohol and ethyl alcohol, liquid polyhydric alcohols such as propylene glycol and 1,3-butylene glycol, and lower alkyl esters such as ethyl acetate are used as extraction solvents. A method using a known solvent such as hydrocarbons such as benzene, hexane and the like, ethyl ether, acetone and the like is adopted, and these solvents can be used alone or in combination of two or more kinds. Particularly, preferred extraction solvents include:
An aqueous solution of an organic solvent miscible with water, in particular, an aqueous solution of ethyl alcohol, methyl alcohol, acetone or the like can be given.

As a ginkgo extract, ginkgo biloba leaves, flowers, branches, fruits and other raw materials are immersed in the above-mentioned extraction solvent, and this is extracted at room temperature or with heating, and the extract obtained by filtration is used as it is. Good, but if necessary, a more concentrated one may be used. Further, these extracts can be purified and used.

The content of the ginkgo extract in the hair restorer of the present invention,
The dry solid content is 0.0001 to 10% by weight (hereinafter simply referred to as "%"), and more preferably 0.01 to 5%. When an extract is used, the extract concentration and the like are not particularly limited as long as the content of the dry solid content as a solute is within the above range.

If the content of Ginkgo biloba extract is less than 0.0001%, a sufficient hair-growing effect may not be obtained, and even if it exceeds 10%, no further increase in the effect will be seen, In some cases, there may be problems in the product, such as generation of odor and precipitation depending on the dosage form.

On the other hand, as a disinfectant which is another essential component of the present invention,
Triclosan, alkyldiaminoethylglycine hydrochloride,
One or more selected from trichlorocarbanilide and isopropylmethylphenol.

The content of the above-mentioned bactericide in the hair restoration of the present invention is 0.0001-5.
%, Preferably 0.01 to 1%.

When the content of the fungicide is less than 0.0001%, a sufficient effect may not be obtained, and when the content exceeds 5%, the effect is almost constant, and no increase is observed.

The hair restorer of the present invention can be prepared by blending ginkgo biloba extract and fungicide, which are essential components, with various types of bases generally known as hair products according to a conventional method.

Examples of the form of the hair restorer include, for example, an emulsion, a cream, a lotion, and the like, and as a dosage form, a hair tonic, a hair liquid, a hair lotion, a hair cream,
Hair rinse, shampoo, hair set lotion, hair spray, hair pack and the like.

Further, the components constituting the hair restoration base include purified water,
Lower alcohols, polyhydric alcohols, fats and oils, surfactants, cosmetic ingredients, ultraviolet absorbers, thickeners, pigments, preservatives, those used in ordinary cosmetics such as fragrances can be exemplified, These can be appropriately selected and used.

Particularly preferred dosage forms of the hair restorer of the present invention are hair tonics and hair lotions using a 50-70% aqueous ethanol solution as a base, due to their use and suitability of the drug.

It is more preferable to add 0.0001 to 5% of vitamin E and its derivatives as vitamins to the hair restorer of these dosage forms, since a higher hair restore effect can be obtained.

[Examples] Next, the present invention will be further described with reference to Production Examples and Examples. However, the present invention is not limited by these Examples and the like.

Production Example 1 1.0 kg of a dried pulverized green ginkgo leaf was treated with ethyl acetate.
After degreasing using 8 liters of a benzene mixture (1: 1), the mixture was air-dried to remove the solvent. Next, extraction was performed by heating with 8 liters of 70 V / V% ethanol for 5 hours. Thereafter, the residue was again extracted by heating with 8 liters of 70 V / V% ethanol for 3 hours, and the obtained extract was combined with the above extract and concentrated to dryness at 50 ° C. or lower to obtain 196 g of crude crystals. 95 V /
After adding 2 liters of V% ethanol and performing stirring extraction, insolubles were separated by filtration, 25% aqueous ammonia was added to the extract to adjust the pH to 9.0, and the precipitated precipitate was removed.
20 g of activated carbon was added, and the mixture was stirred at 50 ° C. for 30 minutes, and then the activated carbon was separated by filtration. The treated liquid is concentrated to dryness at 50 ° C or less, and powder 12
g was obtained.

Production Example 2 1.0 kg of dried green leaves of Ginkgo biloba was extracted with 5 liters of a water-acetone mixture (1: 1) at 60 ° C. for 6 hours. Hexane was added to the obtained extract (2 liters, 1 liter, and 1 liter, three times in total), and the hexane-soluble portion was removed.
200 g was added, followed by extraction with 1.0 liter of methyl ethyl ketone. Further, the obtained extract was concentrated and diluted with 2 liters of 70 V / V% ethanol to obtain a ginkgo extract.

Example 1 Samples having the formulations shown in Table 1 were prepared, and the hair growth effect was evaluated by the following test method. In addition, the compounding quantity in a table | surface is a weight%.

How: Hair-growth effect test method: A group of 10 test subjects (panels) was subjected to a use test of applying the samples to the hair.

The use period is 8 weeks, during which the subjects are allowed to wash their hair every day,
Thereafter, an appropriate amount of each sample was applied to the scalp. Hair was washed every day two weeks before the start of the use experiment, the number of hair loss during hair washing was counted every other day, and the average value of a total of five measurements was taken as the number of hair loss before application. From the 8th week after the application was started, the number of hair loss during hair washing was counted, and the average value of a total of five measurements was taken as the number of hair loss after application. The number of hair loss before application and the number of hair loss after application were compared to determine the hair growth effect. Table 2 shows the results.

The result: As can be seen in Table 2, the hair restoration (,) combining the ginkgo biloba extract and the fungicide has a clear decrease in the number of hair loss compared with the hair restoration (,,) containing the ginkgo biloba extract or the fungicide alone. There was a large and remarkable hair growth effect.

Example 2 A hair lotion type hair restorer was prepared according to the following formulation, and its hair restorer effect was examined by the same hair restorer test as in Example 1.

As a result, it was recognized that the hair restoration of Example 2 exhibited a very excellent hair restoration effect.

In addition, the hair lotion type hair nourishing agent was manufactured by adding a mixed solution of and a mixed solution of the components in the formulation and thoroughly mixing and stirring.

Example 3 Hair Cream Type Hair Restoration: (Ingredient) (% by weight) (1) Beeswax 1.0 (2) Liquid paraffin 50.0 (3) Stearic acid 3.0 (4) Sorbitan sesquioleate 2.0 (5) Polyoxyethylene monolaurate Rubitan (20E.O) 1.5 (6) Ginkgo biloba extract (50% aqueous solution of the product obtained in Production Example 1) 1.0 (7) Alkyl diaminoethyl glycine hydrochloride solution 1.0 (8) Fragrance 0.2 (9) Methyl paraoxybenzoate 0.1 (10) Remaining amount of purified water (Production method) A. Mix (6), (7), (9) and (10) with stirring.

B. Mix and heat-dissolve (1) to (5).

B was added to CA to emulsify it, and after cooling, (8) was added to obtain a hair cream type hair restorer.

Example 4 Hair Liquid Type Hair Restoration: (Component) (% by weight) (1) Polyoxypropylene butyl ether phosphoric acid (35PO) 9.0 (2) Polyoxypropylene monobutyl ether (6.0PO) 10.0 (3) Tri Ethanolamine 1.0 (4) Sodium hyaluronate 0.05 (5) Ginkgo biloba extract (70% ethyl alcohol solution of that obtained in Production Example 1) 0.1 (6) Isopropyl methyl phenol 0.5 (7) Ethyl alcohol 30.0 (8) Fragrance 0.2 (9) Methyl paraoxybenzoate 0.1 (10) Remaining purified water (Preparation method) A. Mix and dissolve (3), (4) and (6) in (10).

B, (1), (2), (5) and (7) to (9) are mixed and dissolved.

B was added to CA and mixed and stirred to obtain a hair kid type hair nourishing material.

[Effects of the Invention] As described above, the hair restorer of the present invention has an effective hair loss preventing effect. That is, the functions of the hair and scalp were enhanced and normalized, and excellent hair-growth and hair-growth effects were obtained.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-117816 (JP, A) JP-A-63-166823 (JP, A) JP-A-63-141917 (JP, A) 208512 (JP, A) JP-A-64-68310 (JP, A) "Encyclopedia of Pharmaceutical Sciences <Compact Edition>" (June 20, 1982) 75 (58) Field surveyed (Int. Cl. ⁶ , DB name) A61K 7/06, 7/00

Claims (1)

(57) [Claims] 1. An essential component comprising 0.0001 to 10% by weight of a ginkgo biloba extract and 0.0001 to 5% by weight of a fungicide selected from triclosan, alkyldiaminoethylglycine hydrochloride, trichlorocarbanilide and isopropylmethylphenol. Characteristic hair restoration.