Patent ID: 6482808
Filing Date: 2002-11-19
Classification: A61K,A61Q

Abstract:
A method of hardening, strengthening, restructuring keratin-containing material and of increasing volume of keratin fibers when said keratin-containing material comprises said keratin fibers, in order to repair or prevent damage to said keratin-containing material, said method comprising the steps of:a) providing a composition having a pH of from 3.0 to 7.0 and consisting essentially of water, at least one reductone and, optionally, at least one optional ingredient, wherein said at least one reductone is selected from the group consisting of ascorbic acid, salts of ascorbic acid, esters of ascorbic acid, isoascorbic acid, salts of isoascorbic acid, esters of isoascorbic acid, 6-O-palmitoyl ascorbate, ascorbyl phosphate, 2,3-dihydroxy-2-propenal and hydroxypropanedial and wherein said at least one optional ingredient is selected from the group consisting of solvents, thickeners, pH adjusting agents, wetting agents, emulsifiers and perfumes; b) bringing the composition of step a) into contact with said keratin-containing materials; c) after step b), allowing said composition to remain on said keratin-containing materials for a predetermined time interval; and d) after step c), rinsing said composition out from said keratin-containing materials after said predetermined time interval with an aqueous rinsing agent; whereby said damage to said keratin-containing materials is effectively repaired or prevented.