US 5,395,624 AGranted

Depigmenting cosmetic and/or dermatological composition containing a di- or tri-caffeoylquinic acid, or a mixture thereof

AssigneeL'oreal

InventorsMing Li, Thierry Sevenet, Hubert Schaller, Hamid Abdul Hadi, Daniel Guenard, Pierre Potier, Eric Pilleux

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Abstract

A depigmenting cosmetic or dermatological composition containing, as active ingredient, at least one di- or tri-caffeoylquinic acid corresponding to general formula (I): ##STR1## in which: R.sub.1, R.sub.2, R.sub.3, and R.sub.4 represent a hydrogen atom or the CAF radical corresponding to the formula: ##STR2## provided that at least two, and at most three, of the R.sub.1, R.sub.2, R.sub.3, and R.sub.4 radicals represent the CAF radical, but excluding R.sub.1 and R.sub.4 as representing the CAF radical and R.sub.2 and R.sub.3 as representing a hydrogen atom, or a mixture of said caffeoylquinic acids.

Claims5

Dependent claims

Depigmenting cosmetic or dermatological composition, consisting essentially of in a suitable cosmetic or dermatological carrier from 0.001 to 15% by weight of at least one di- or tri-caffeoylquinic acid corresponding to the general formula (I):

##STR8## in which:
R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent a hydrogen atom or the CAF radical corresponding to the formula:
##STR9## provided that at least two, and at most three, of the R.sub.1, R.sub.2, R.sub.3 and R.sub.4 radicals represent the CAF radical, with the proviso that:
(i) R.sub.1 and R.sub.4 do not represent CAF when R.sub.2 and R.sub.3 are hydrogen,
(ii) R.sub.2 and R.sub.4 do not represent CAF when R.sub.1 and R.sub.3 are hydrogen, and
(iii) R.sub.3 and R.sub.4 do not represent CAF when R.sub.1 and R.sub.2 are hydrogen;
or a mixture of said caffeoylquinic acids.

4 more elements

Dependencies are inferred from the claim text.