L'oreal

Catherine Causse

Jean-Baptiste Galey

Laurent Marrot

Marcelle Regnier

Sabine Deprez

Rainer Schmidt

A cosmetic composition for depigmenting or bleaching mammalian skin or both, which contains:

Method of depigmenting or bleaching mammalian skin using

Human skin is depigmented or bleached by applying thereto a compound of formula (1): ##STR1## wherein X represents COOH or the ring: ##STR2## wherein Z.sub.1, Z.sub.2 and Z.sub.3, independently of each other, are H, OR or R, R representing an optionally substituted saturated or unsaturated, linear or branched C.sub.4 -C.sub.8 -alkyl radical, or a salt, a metal complex or an ester of the compound.

Use of N,N'-dibenzylethylenediamine-N,N'-diacetic acid derivatives as

Human skin is depigmented or bleached by applying thereto a compound of formula (1): ##STR1## wherein X represents COOH or the ring: ##STR2## wherein Z.sub.1, Z.sub.2 and Z.sub.3, independently of each other, are H, OR or R, R representing an optionally substituted saturated or unsaturated, linear or branched C.sub.1 -C.sub.8 -alkyl radical, or a salt, a metal complex or an ester of the compound.

Salicylic acid derivatives act as inhibitors of tyrosinase and are used in compositions for the purpose of lightening the skin or of treating pigmental blemishes.

Growing community of inventors

Bourg La Reine, France

Catherine Causse