Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1996-02-06
1997-12-30
Fay, Zohreh
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
A61K 3134
Patent
active
057031223
ABSTRACT:
The use of an effective amount of ascorbic acid (Vitamin C) or one or more of its derivatives, has been found to decrease skin irritation caused by the topical administration of an active ingredient for treating a skin condition. Examples of the active ingredient include .alpha.-hydroxy acids, .beta.-hydroxy acids, keto acids, benzoyl peroxide, retinol (Vitamin A), retinoic acid, retinal A.sub.2, Vitamin A epoxide, lactamides and quaternary ammonium lactates, C.sub.4-12 hydroxylated carboxylic acids, sulfur, resorcinol and salicylic acid, and various derivatives thereof. The ascorbic acid (or its derivatives) is present in effective amounts from about 0.5% to about 25% by weight. It is provided by topical application of a separate solution or by admixture with a cosmetically or pharmaceutically acceptable vehicle for the active ingredient.
REFERENCES:
patent: 4983382 (1991-01-01), Wilmott et al.
patent: 5140043 (1992-08-01), Darr et al.
The Merck Manual, 5th Edition, 1987, Merck & Co., Rahway, NJ, pp. 2255, 2347-2350.
Sauer, Manual of Skin Diseases, 3rd Edition, 1973, J.B. Lippincott Co., Philadelphia, PA.
Avon Products Inc.
Fay Zohreh
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