JPS61238714A - Hair cosmetic - Google Patents

Abstract

PURPOSE:A hair cosmetic, obtained by incorporating sesamol, lecithin, phytic acid, phosphatidyl choline, phosphatidyl ethanolamine or/and phosphatidyl serine with a hair cosmetic, very effective for preventing dandruff and having high safety. CONSTITUTION:A hair cosmetic obtained by incorporating 0.05-10wt% preferably 0.1-5wt% sesamol, lecithin, phytic acid,salt thereof, (Na salt or K salt, etc.). Phosphatidyl chlorine, phosphatidyl ethanolamine or/and phosphatidyl serine as essential components with a hair cosmetic, e.g. hair tonic, hair liquid, milky lotion for the scalp, hair cream, hair shampoo, hair rinse or hair spray, capable of preventing significantly occurrence of dandruff by adjusting moderately the metabolic reaction in the scalp tissues, having better if not less antidandruff effect than that of pyrithione zinc and satisfiable from the viewpoint of the skin safety.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a hair cosmetic, and more particularly to an anti-dandruff hair cosmetic containing a specific substance.

[Prior art] Generally, dandruff consists of secretions from sebaceous glands, secretions from sweat glands, and detached substances from the epidermal layer, etc., and is usually caused by increased secretion of sebaceous glands, etc., but when the skin is infected with bacteria or yeast, dandruff The outbreak is said to be facilitated pathologically. For this reason, hair cosmetics containing antibacterial agents have traditionally been used to prevent dandruff. For example, zinc pyrithione has traditionally been used as the most effective anti-dandruff drug, but it is well known that this substance also falls under the category of antibacterial agents.

However, some of these antibacterial agents have safety problems, and it is considered preferable to avoid using large quantities as much as possible.

[Problems to be Solved by the Invention] In view of the above circumstances, the present inventors have worked diligently to obtain an anti-dandruff substance that is satisfactory in terms of skin safety and is comparable in effectiveness to zinc pyrithione. As a result of repeated research, we have found that, in particular, sezamol, lecithin, phytic acid,
Phytic acid salts, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine,
The present invention was completed based on the discovery that it is extremely useful for preventing dandruff and that safety can also be improved.

[Means for Solving the Problems 1] That is, the present invention is a hair cosmetic containing one or more selected from the following compounds.

The configuration of the present invention will be described below.

The compounds used in the present invention include sezamol, lecithin, phytic acid, salts of phytic acid, phosphatidylcholine,
These are phosphatidylethanolamine and phosphatidylserine, and examples of the salts of phytic acid include sodium salts and potassium salts. These compounds can be incorporated into hair cosmetics by following the method of incorporating general fat-soluble substances.

The blending amount is 0.05 to 10% by weight, preferably 0.
．． It is 1 to 5% by weight. If it is less than 0.05% by weight, the dandruff prevention effect tends to be poor, and 10! Even if it is blended in an amount exceeding i%, no significant increase in effect can be expected.

In addition to the above-mentioned essential ingredients, the hair cosmetic of the present invention includes conventional ingredients such as alcohol, oil, ultraviolet absorbers, surfactants, preservatives, humectants, fragrances, water, thickeners,
Coloring agents and the like can be added as appropriate.

The hair cosmetics of the present invention broadly refer to those used for the scalp or hair, and include, for example, hair tonics, hair liquids (liquid hair washes), scalp emulsions, hair creams, hair shampoos, hair rinses, hair sprays, etc. It will be done.

[Effect] When the hair cosmetic of the present invention is used, the metabolic reaction within the scalp tissue is moderately adjusted, and it is thought that the occurrence of dandruff can be significantly prevented, but the effect is almost equal to or greater than that of zinc pyrithione. was recognized as being excellent.

[Example] Next, the present invention will be explained in more detail by referring to Examples and Experimental Examples. The present invention is not limited thereby.

The blending amount is in weight%.

EXPERIMENTAL EXAMPLE A hair tonic was manufactured by a conventional method based on the formulation shown in Table 1, and its anti-dandruff effect was measured.

(Method for measuring dandruff prevention effect) A test was conducted on 18 men aged 22 to 50 who had a relatively large amount of dandruff.

Before the start of the test, the subjects' hair was washed with a chemical-free shampoo, and the hair was styled with a chemical-free hair tonic.The dandruff accumulated in the two days after washing was collected twice a week for one month, and the collected dandruff was collected. The protein amount was measured (control period). The panel was then divided into 6 groups of 3 participants and asked to use an antioxidant-containing hair tonic and a drug-free shampoo for one month.

As in the control period, accumulated dandruff was collected twice a week for two days after hair washing, and the amount of protein was measured (sample period).

Hair tonic is to be used once a day, and the average dandruff protein amount in the control period is compared with the average dandruff protein amount in the sample period, and if the reduction rate of dandruff is 50% or more...
・・・・・・・・・・・・・・・A40% or more, 50
If less than %・・・・・・B20% or more, 40%
If it is less than...C If it is less than 20%, it is ranked as D.

The results are shown in Table 1.

As a result, it was confirmed that all the products of the present invention significantly prevented dandruff.

(Margin below) Examples of the present invention are shown below.

Example 1 55 g of ethyl alcohol, polyoxyethylene (8 mol), 2 g of oleyl alcohol ether, 0.5 sezamol
An appropriate amount of g and fragrance were added and dissolved at room temperature to obtain an alcohol phase. Separately, 37.5 g of purified water and 5 g of glycerin.
was added and heated to dissolve.

After cooling, an appropriate amount of dye was added, and an alcohol phase was added to the aqueous phase to solubilize it to obtain a hair tonic with anti-dandruff effect.

Example 2 52.5 g of ethyl alcohol, 20 g of polyoxypropylene butyl ether, 2 g of squalane, and Ig of lecithin.
24.5 g of purified water was added to an alcohol phase in which an appropriate amount of perfume was dissolved at room temperature, and dissolved by heating. After cooling, a portion to which an appropriate amount of pigment was added was mixed to obtain a hair liquid having an anti-dandruff effect.

Example 3 Stearic acid 2g, cetyl alcohol 1.5g>Vaseline 3g1 Liquid paraffin 12g1 Polyoxyethylene (
10 mol) monooleic acid ester 2g1 phytin MO
, 5g and an appropriate amount of fragrance were mixed and heated to 80°C to obtain an oil phase. Separately, 5 g of propylene glycol, 1 g of triethanolamine, and 73.0 g of purified water were heated to 80°C, and the above oil phase was gradually added to the water phase while stirring,
After emulsification, it was cooled to obtain a scalp emulsion with anti-dandruff effect.

Example 4 2g stearic acid, 7g stearyl alcohol.

Add 2 g of lanolin, 5 g of squalane, 6 g of octyldodecanol, 3 g of polyoxyethylene (10 mol) cetyl ether, 2 g of glyceryl monostearate, 1.5 g of phosphatidylcholine, and an appropriate amount of fragrance, and heat to 8oC to prepare the oil phase. Obtained. Separately, 5g of propylene glycol,
66.5 g of purified water was gradually added to the water phase heated to 80°C while stirring the oil phase, emulsified, and cooled to obtain a hair cream with anti-dandruff effect.

Example S To 78.0 g of purified water, 15 g of lauryl sulfate triethanolamine 1 5 g of coconut oil fatty acid monoethanolamide
1 phosphatidylethanolamine Igs 1 g of phosphatidylserine, pigment and fragrance were added in appropriate amounts, heated and mixed, and then cooled to obtain a hair shampoo with anti-dandruff effect.

Example 6 3.5 g of polyethylene glycol 1500, 1 g of triethanolamine, 1.5 g of phosphatidylethanolamine, and 83.0 g of purified water were dissolved by heating and maintained at 70°C. 2.5g stearic acid, 1. cetyl alcohol.
581 Vaseline 5.0g, squalane 10.0g,
2.0 g of polyoxyethylene (10 mol) monooleic acid ester was dissolved by heating, maintained at 70° C., and added to the aqueous phase.

After preliminary emulsification, the mixture was uniformly emulsified using a homomixer and slowly cooled to prepare a hair emulsion with anti-dandruff effect.

Claims (1)

[Claims] Sezamol, lecithin, phytic acid, salts of phytic acid,
A hair cosmetic comprising one or more of phosphatidylcholine, phosphatidylethanolamine, and phosphatidylserine.