Patent ID: 7390478
Filing Date: 2008-06-24
Classification: A61K,A61Q

Abstract:
1. A method of treating hair to increase its thickness, comprising: pre-treating the hair by applying a high pH composition to the hair whereby to lift cuticle layers of the hair; and thereafter, applying a low pH composition containing a thickening agent to said pre-treated hair whereby to make the thickening agent substantive to the hair and closing the cuticles to seal the thickening agent to the hair; wherein the high pH composition comprises, based on the weight of the high pH composition: 0.50-5.00% conditioning agent; 0.50-5.00% solubilizer for the conditioning agent; 0.01-1.00% rheology control agent; one or more preservatives; a fragrance; and water and sufficient basic pH adjuster to bring the pH of the composition to a range of 9.00-9.50; and wherein the conditioning agent is PEG-12 dimethicone; the solubilizer for the conditioning agent is polysorbate 20; the rheology control agent is PEG-90M; the pH adjuster is aminomethyl propanol; and the preservatives are a combination of phenoxyethanol, methylparaben, ethylparaben, butylparaben, isobutylparaben, and propylparaben.