L'oreal

Gdf Suez

Frederic Legrand

Michael Degeorge

Sylvain Kravtchenko

Jeremy Puco

Jean Marie Millequant

Stephanie Brodin

Disclosed are methods and compositions for altering the color of hair, comprising treating the hair with a pre-alkalizing composition and then treating the hair with a color-altering composition comprising at least one lift-enhancing agent, at least one oxidative dye precursor, at least one oxidizing agent chosen from peroxides, persulfates, perborates, percarbonates, peracids, bromates, their salts and mixtures thereof, and optionally, at least one direct dye.

Compositions and methods for altering the appearance of hair

Disclosed are methods and compositions for altering the color of hair, comprising treating the hair with a pre-alkalizing composition and then treating the hair with a color-altering composition comprising at least one first oxidizing agent chosen from peroxides, persulfates, perborates, percarbonates, peracids, bromates, their salts and mixtures thereof, and further optionally comprising at least one fatty substance and/or thickening agent, and/or at least one second oxidizing agent. The methods may further optionally comprise applying onto the hair a coloring composition comprising, in a cosmetically acceptable carrier, at least one dye compound chosen from oxidative dye precursors, and direct dye compounds.

Disclosed are methods and compositions for altering the color of hair, comprising treating the hair with a pre-alkalizing composition and then treating the hair with a color-altering composition comprising at least one direct dye and at least one oxidizing agent chosen from peroxides, persulfates, perborates, percarbonates, peracids, bromates, their salts and mixtures thereof.

Disclosed are methods and compositions for altering the color of hair, comprising treating the hair with a pre-alkalizing composition and then treating the hair with a color-altering composition comprising at least one direct dye and optionally at least one oxidative dye precursor.

Methods for altering the color and appearance of hair

The invention relates to an oxidizing composition for keratin fibers, in particular for human keratin fibers and more particularly the hair, comprising, in a cosmetically acceptable medium: The invention also relates to the dyeing, permanent-waving, bleaching and stripping processes and devices using the said composition.

Oxidizing compositions containing a mixture of polymers including at least one copolymer based on acrylamide and 2-acrylamido-2-methylpropanesulphonic acid

Growing community of inventors

Sevres, France

Frederic Legrand