External preparation

a technology of preparation and composition, applied in the field of external preparation composition, can solve the problems of affecting the beauty of the skin, affecting the appearance of the skin, and changing the texture of the coarseness of the coarseness, so as to improve the effect of skin roughness, improve the coarseness, and improve the effect of dermatopathy

Inactive Publication Date: 2005-10-27
LION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013] Intensive researches repeated by the present inventors have resulted in finding that a specific acyl glucosamine derivative does not have side effects such as irritation and teratogenesis and that it has an excellent effect for dermatopathy and diseases such as wrinkles and sags of the skin, pigmentation of the skin, skin roughness and coarse texture, baldness, psoriasis, lichen, ichthyosis, keratosis, pustulosis, acne, eczema and atopic dermatitis. In particular, intensive researches repeated by the present inventors on action to the skin have resulted in finding a wrinkle-improving effect on the skin in a mouse irradiated with UV rays, a acne-treating effect on acne patients, a coarse texture-improving effect on the skin in a mouse irradiated with UV rays, an improving effect on skin roughness caused by sodium dodecylsulfate (SDS) and a pigmentation-improving effect in a guinea pig irradiated with UV rays, and thus the present invention has come to be completed.

Problems solved by technology

In general, phenomena such as wrinkles, sags, spots and skin roughness which are caused by aging, UV rays and dryness are well known as factors for damaging the beauty of the skin.
The texture is also given as an important factor taking part in the beauty of the skin, and disturbance and a coarseness change in the texture are a large factor for damaging the beauty of the skin.
Not only the texture is coarsened by dryness, but also the beauty of the skin, that is, the smoothness, the gloss, the flexibility and the whiteness of the skin are lost as the age passes, and the skin is notably coarsened and chapped.
Further, skin diseases such as pustulosis, acne, eczema, psoriasis, lichen, ichthyosis, keratosis and atopic dermatitis bring about a serious change in the appearance and the function of the skin.
However, medicines and cosmetic compositions blended with the conventional drug efficacy components described above do not still have satisfactory effects on a change in the skin, and the existing situation is that medicines having excellent effects are desired to be developed.
However, because of side effects such as strong irritation and teratogenicity and inferior solubility in water, retinoids have so far been extremely limited in application to cosmetics and medicines.

Method used

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  • External preparation
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Examples

Experimental program
Comparison scheme
Effect test

examples 1 to 28

[0110] Next, blend compositions are shown in the following Tables 8 to 15 with respect to various uses (lotion, cosmetic gel, cosmetic milky lotion, cosmetic cream, ointment and silicone oil and silicone derivative base-containing cream) and efficacy (wrinkle-improving, coarse texture-improving, skin roughness-improving, whitening and acne-improving) of the external preparation compositions containing the acyl glucosamine derivatives having the respective improving effects described above.

examples 1 to 5

[0111] The respective lotions (for antiwrinkle, texture-improving, skin roughness, acne and whitening) were prepared according to blend compositions shown in the following Table 8.

[0112] All lotions were highly effective for preventing or treating the targeted symptoms. Further, they were impregnated into publicly known unwoven fabrics to be used in the form of packs and they were highly effective as well.

TABLE 8Lotion(blend unit: % by mass, total amount: 100% by mass)Example231TextureSkin45AntiwrinkleimprovingroughnessAcneWhiteningN-retinoyl-D-glucosamine2.001.001.002.002.00(trans isomer)N-retinoyl-D-glucosamine 0.001 0.005 0.001 0.001(9-cis isomer)N-retinoyl-D-glucosamine 0.009 0.005 0.0010.01 0.009(13-cis isomer)N-oleoyl-D-glucosamine0.50N-linoleoyl-D-glucosamine0.050.05N-lauroyl-D-glucosamine1.000.500.50N-isostearoyl-D-glucosamine1.000.500.50N-POE(2)hexadecyletheroxy-0.100.05carbonyl-D-glucosamineN-POE(5)octadecyletheroxy-0.05carbonyl-D-glucosamineDecaglyceryl monolaurate0.20...

examples 6 to 10

[0113] The respective cosmetic gels (for antiwrinkle, texture-improving, skin roughness, acne and whitening) were prepared according to blend compositions shown in the following Table 9.

[0114] All cosmetic gels were highly effective for preventing or treating the targeted symptoms. Further, they were impregnated into publicly known unwoven fabrics to be used in the form of packs and they were highly effective as well.

TABLE 9Cosmetic gel(blend unit: % by mass, total amount: 100% by mass)Example786TextureSkin910AntiwrinkleimprovingroughnessAcneWhiteningN-retinoyl-D-glucosamine2.001.001.002.002.00(trans isomer)N-retinoyl-D-glucosamine 0.001 0.005 0.001 0.001(9-cis isomer)N-retinoyl-D-glucosamine 0.009 0.005 0.0010.01 0.009(13-cis isomer)N-oleoyl-D-glucosamine0.050.052.00N-linoleoyl-D-glucosamine0.05N-lauroyl-D-glucosamine1.000.500.50N-isostearoyl-D-glucosamine1.00N-POE(2)hexadecyletheroxy-0.05carbonyl-D-glucosamineN-POE(5)octadecyletheroxy-0.05carbonyl-D-glucosamineVegetative squala...

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Abstract

An external preparation composition used for preventing or treating symptoms or diseases related to dermatopathy caused by dryness, UV rays and aging such as wrinkles and sags of the skin, pigmentation of the skin, skin roughness and coarse texture and skin diseases such as psoriasis, lichen, ichthyosis, keratosis, Darier's disease, pustulosis, acne, eczema and atopic dermatitis. The external preparation composition comprises at least one of acyl glucosamine derivatives represented by the following Formula (I):
    • wherein R1, R2, R3, R4 and R5 are defined; and X is any one of groups represented by the following Formulas (A) to (C):
wherein Y, n and R6 are also defined.

Description

TECHNICAL FIELD [0001] The present invention relates to an external preparation composition for preventing or treating symptoms or diseases related to dermatopathy caused by dryness, UV rays and aging such as wrinkles and sags of the skin, pigmentation of the skin, skin roughness and coarse texture and skin diseases such as psoriasis, lichen, ichthyosis, keratosis, Darier's disease, pustulosis, acne, eczema and atopic dermatitis. BACKGROUND ART [0002] In general, phenomena such as wrinkles, sags, spots and skin roughness which are caused by aging, UV rays and dryness are well known as factors for damaging the beauty of the skin. [0003] A normal skin looks flat at a glance, but a skin surface has a pattern constituted of fine grooves (sulci cutis) and parts (cristae cutis) surrounded by them, that is, a “texture”. The texture is also given as an important factor taking part in the beauty of the skin, and disturbance and a coarseness change in the texture are a large factor for damagi...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K8/60A61K8/67A61K31/7008A61P17/00A61Q19/00A61Q19/02A61Q19/08
CPCA61K8/34A61Q19/08A61K8/368A61K8/37A61K8/42A61K8/49A61K8/608A61K8/671A61K8/738A61K8/86A61K8/891A61K31/7008A61Q19/00A61Q19/02A61K8/365A61P17/00
Inventor KAMBAYASHI, HIROAKIKONTA, HIROSHI
Owner LION CORP
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