Compositions and methods for altering the appearance of hair

US9565915B2 · kind B2 · utility

Assignee

• L'Oreal · FR

Inventors

• Michael DeGeorge · Old Bridge, US
• Jeremy Puco · Budd Lake, US
• Frédéric Legrand · Billancourt, FR

Key dates

• Filing date: May 9, 2014
• Grant date: Feb 14, 2017
• Expiry date: May 9, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/884
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

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.