JPH09249549A - Cosmetic composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic composition free from a smell and capable of stimulating the flow of blood and remarkably improving dropsy and myodynia at an application site by applying the cosmetic composition to the application site. SOLUTION: This cosmetic composition such as lotion, gel or spary contains one or more kinds of eugenol derivatives selected from acetyl eugenol, methyl eugenol, methyl isoeugenol, ethyl eugenol, ethyl isoeugenol and eugenol salicylate, and 1-menthol and/or isopentane.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a cosmetic composition which increases blood flow without irritating the skin, effectively improves swelling and myalgia, and has no odor.

[0002]

2. Description of the Related Art At present, vascular smooth muscle dilators, α-antagonists and β-antagonists are used as blood circulation promoters. In addition, in the field of Kampo, anti-congestive agents such as button pie, senkyu, touki, kouka, and tounin have been used. However, both drugs are used internally, and are rarely used externally from the viewpoints of percutaneous absorption and effects. Other than pharmaceuticals, drugs such as dl-α-tocopherol acetate, glycerin, and ethanol are used as peripheral blood flow improving agents in the fields of cosmetics and quasi-drugs, but their effects cannot be said to be sufficient. .

It has been known for a long time to give a warm feeling to the skin by applying a skin stimulant such as capsicum extract, capsicum powder, and capsaicin to the skin. These are used as external preparations for the purpose of anti-inflammatory and analgesia for stiff shoulders, low back pain, etc. However, the concentration generally applied at present has low thermal sensation and high skin irritation. For example, when applied as a poultice, pain rather than thermal sensation or redness of the skin is often observed. Attempts have also been made to give a warm feeling to the skin by using spicy crude drugs such as ginger and salamander, but the actual effects and feelings cannot be expected.

On the other hand, as a drug for improving swelling, an antihypertensive diuretic such as thiazide has been devised for internal use and a part for external use, such as a massage agent. In any case, the effect or usability is satisfactory. It can not be said. In addition, salicylic acid compounds such as methyl salicylate, indomethacin, ketoprofen, etc. are used as drugs for treating muscle pain, but they are highly irritating to delicate skin and are not particularly preferable for children and women. Among the eugenol derivatives contained in Clove extract, etc.,
Such substances as eugenol, isoeugenol, acetylisoeugenol, dihydroeugenol, benzyl eugenol and the like, which have high skin sensitization, are included and have been a problem.

Therefore, the applicant of the present invention has previously proposed a skin external preparation composition containing a specific eugenol derivative (JP-A-6-287135). This external preparation for skin has an effect of increasing peripheral blood flow and improving swelling, but is not completely satisfactory.
Moreover, a specific eugenol derivative which is a component of this external preparation for skin, such as acetyleugenol, can be obtained from clove extract, etc., but is usually produced by reacting eugenol as a raw material, and is commercially available. However, these commercially available eugenol derivatives also have a problem of having an odor.

[0006]

DISCLOSURE OF THE INVENTION The present invention promotes an increase in peripheral blood flow without feeling skin pain or skin redness, thereby further improving local swelling / muscle pain, and odor. The present invention provides a cosmetic composition free from the above.

[0007]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventors improved odor by adding 1-menthol and / or isopentane to the specific eugenol derivative. The present inventors have found that the effects can be exhibited, and that peripheral blood flow can be significantly increased without causing skin pain and redness, thereby further improving swelling / muscle pain, and completed the present invention.

That is, according to the present invention, one or more eugenol derivatives selected from acetyleugenol, methyleugenol, methylisoeugenol, ethyleugenol, ethylisoeugenol and eugenol salicylate are blended with 1-menthol and / or isopentane. A cosmetic composition characterized by the above is provided.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The main components of the cosmetic composition according to the present invention are acetyleugenol, methyleugenol,
One or more kinds of derivatives selected from methylisoeugenol, ethyleugenol, and eugenol salicylate. The eugenol derivative may be derived from a natural product such as clove extract or a synthetic product. Also,
Since the eugenol derivative is on the market, it is possible to use a commercially available product as it is. However, normally, the commercially available product has a purity of about 99%, and since it contains about 1% by weight of eugenol, it has a strong odor. Therefore, it is desirable to purify the eugenol content as low as possible. In the present invention, the eugenol content is preferably 0.7% by weight or less, more preferably 0.3% by weight or less.

The amount of the eugenol derivative used in the present invention is preferably 0.1 to 20.0% by weight, more preferably 1.0 to 8.0% by weight, based on the total amount of the composition.
If the amount used is less than 0.1% by weight, the effect of improving leg swelling will be insufficient, and if it exceeds 20.0% by weight, the feeling of use will deteriorate, which is not preferable.

Further, in the cosmetic composition of the present invention,
An appropriate amount of 1-menthol and / or isopentane is blended with the eugenol derivative. The cosmetic of the present invention containing 1-menthol and / or isopentane has no odor as compared with those containing no such ingredients,
Further, the swelling improving effect is remarkably improved and the feeling of use is excellent. The amount of 1-menthol and / or isopentane used is preferably 0.01 to 70% by weight, more preferably 10 to 28% by weight, based on the total amount of the composition. If the amount used is less than 0.01% by weight, the effect of improving swelling becomes insufficient, and if it exceeds 70% by weight, the odor is strong and stable spray properties cannot be obtained, which is not preferable.

Further, when a large amount of water is present in the cosmetic composition of the present invention, hydrolysis of the eugenol derivative occurs, eugenol causing odor is generated, and the content of eugenol increases, which is not preferable. . Therefore, in the present invention, it is preferable to reduce the amount of water present in the cosmetic composition as much as possible, specifically 5000 ppm or less, preferably 100 ppm, based on the total cosmetic composition.
It is desirable that the content be 0 ppm or less. Such a cosmetic composition having a low water content can be prepared, for example, by using high-purity ethanol as a solvent. Since such a cosmetic composition having a low water content suppresses the hydrolysis reaction of the eugenol derivative, which is the main component in the composition, it has no odor even after long-term use and has a long swelling improving effect. It has a long shelf life and excellent long-term storage stability.

Further, the cosmetic composition of the present invention may contain various components usually contained in cosmetics.
Examples of such components include surfactants, higher alcohols, fatty acids, oils such as silicones, crude drugs such as peony and ginger roots, and fragrances.

The composition of the present invention may be in any form such as lotion, gel and spray.

The present invention will be specifically described below based on examples. Examples 1 to 5 and Comparative Examples 1 to 2 Cosmetic compositions having the formulations shown in Table 1 were prepared, and the odor and swelling improving effects were evaluated by the following measuring methods and evaluation criteria, and the results are shown in Table 1. . 1) Odor evaluation method Sensory evaluation by 10 professional panelists (5-level evaluation) 5 No odor 4 Almost no odor 3 Slight offensive odor 2 Clear odor 1 Very offensive odor 2) Evaluation method of swelling improvement effect Sensory evaluation by 10 people who were standing all day (5-level evaluation) A certain amount of the product of the present invention (aerosol) was sprayed in the evening, and evaluated 30 minutes later. 5 Very improved 4 Slightly improved 3 Unchanged 2 Slightly puffed 1 Instead, puffed

[0016]

[Table 1]

Example 4 Aerosol (wt%) Methyleugenol 1.0 l-menthol 1.0 Glycol salicylate 1.0 Isopropyl myristate 0.7 Isopentane 15.0 Fragrance Trace ethanol balance (stock solution L / PG = 1 / 1) Using this aerosol, the odor and swelling improving effects were evaluated in the same manner as in Example 1, and all the items were ◎.

Example 5; Aerosol (wt%) Acetyl eugenol 1.0 l-menthol 0.5 glycol salicylate 0.5 nonionic activator 0.3 dimethylpolysiloxane 0.7 isopentane 20.0 fragrance trace ethanol balance (stock solution) L / PG = 6/4) When the odor and swelling improving effects were evaluated in the same manner as in Example 1 using this aerosol, all the items were ◎.

[0019]

The cosmetic composition of the present invention, when applied topically, does not cause redness, pain, etc., promotes blood flow at the application site, and significantly improves swelling / muscle pain. It has no odor and is odorless.

Claims (1)

[Claims] 1. Acetyl eugenol, methyl eugenol, methyl isoeugenol, ethyl eugenol,
A cosmetic composition comprising 1-menthol and / or isopentane mixed with at least one eugenol derivative selected from ethyl isoeugenol and eugenol salicylate.