Patent ID: 7303589
Filing Date: 2007-12-04
Classification: A61K,A61Q

Abstract:
1. A process for dyeing human keratin materials with a lightening effect, comprising applying to the materials, a composition comprising: a cosmetically acceptable medium, wherein said medium is water and optionally an organic solvent and at least one fluorescent dye present in an amount sufficient to dye keratin materials with a lightening effect, comprised in said medium and having the following formula: wherein: R R R R and linear and branched alkyl radicals comprising 1 to 4 carbon atoms, optionally substituted with at least one entity chosen from hetero atoms, groups comprising at least one hetero atom and halogen atoms, and interrupted with at least one entity chosen from hetero atoms and groups comprising at least one hetero atom; X is chosen from: a is equal to 0 or 1; Y n is an integer ranging from 2 to the number of cationic charges present in the fluorescent dye.