Patent ID: 6017519
Filing Date: 2000-01-25
Classification: A61K,A61Q

Abstract:
A kit for preparing a ready-to-use composition for permanent waving of human hair, said kit comprising two separate packages,a first package containing a first composition comprising thioglycolic acid or a salt thereof, at least one amino acid hydrochloride, and at least one compound chosen from the group consisting of polyol, and a methyl or ethyl ether thereof in an aqueous solution, said first composition having a pH-value of about 4.5 to 6.5, anda second package containing a second composition comprising at least one compound chosen from the group consisting of ammonium carbonate, ammonium hydrogen carbonate and ammonium carbamate, said second composition having a pH-value of about between 8 and 9.5,whereby when said first and second compositions are mixed before application onto human hair, a ready-to-use composition produced thereby has a pH-value between 7 and 8.