Methods of lightening hyperpigmented regions in mammalian skin

Details Methods of lightening hyperpigmented regions in mammalian skin Methods of lightening hyperpigmented regions in mammalian skin

A - Human Necessities

61

K

A61K 8/44 (2006.01) A61K 8/46 (2006.01) A61K 8/49 (2006.01) A61K 8/64 (2006.01) A61Q 19/02 (2006.01)

Patent

CA 2192665

The subject invention relates to methods of lightening hyperpigmented regions in mammalian skin by administering to the skin of a mammal in need of treatment a safe and effective amount of a sulfhydryl compound selected from the group consisting of thioglycolic acid, cysteine homocysteine, glutathione thioglycerol, thiomalic acid 2- mercaptopropionic acid, 3-mercaptopropionic acid, thiodiglycol, 2- mercaptoethanol, dithiothreitol, thioxanthene, thiosalicylic acid thiolactic acid thiopropionic acid, thiodiglycolic acid, N-acetyl-L-cysteine, lipoic acid, and cosmetically- and/or pharmaceutically- acceptable salts thereof.

Procédés permettant d'éclaircir des régions hyperpigmentées de la peau d'un mammifère, consistant à appliquer sur la peau une quantité sûre et efficace d'un composé sulfhydryle sélectionné dans le groupe composé d'acide thioglycolique, cystéine, homocystéine, glutathione, thioglycérol, acide thiomalique, acide 2-mercaptopropionique, acide 3-mercaptopropionique, thiodiglycol, 2-mercaptoéthanol, dithiothréitol, thioxanthène, acide thiosalicylique, acide thiolactique, acide thiopropionique, acide thiodiglycolique, N-acétyl-L-cystéine, acide lipoïque, ainsi que des sels dudit composé acceptables sur le plan cosmétique et/ou pharmaceutique.

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