Patent ID: 6013249
Filing Date: 2000-01-11
Classification: A61K,A61Q

Abstract:
A method of improving the body of human hair comprising:(a) contacting the hair with an aqueous solution containing an ionic complex formed from a cationic compound, in solution, and an anionic compound, in solution, in a molar ratio of cationic compound to anionic compound in the range of 1:1.2 to 1.2:1, wherein said compounds being different, wherein the cation is in solution in a concentration of about 0.2 molar to about 4.0 molar and the anion is in solution in the concentration of about 0.2 molar to about 4.0 molar, said aqueous solution having a pH of about 4.5 to about 8.5 and having no acid that interferes with anionic complexing between said cationic and anionic compounds at the pH of the aqueous solution, thereby reducing the waving efficiency;wherein the cationic compound, in solution, forms a cation having a formulaHS--CH.sub.2 --CH.sub.2 --NR.sub.1 --R.sub.2 --R.sub.3,wherein R.sub.1, R.sub.2, and R.sub.3 are the same or different, are H or an alkyl group having 1 to 5 carbon atoms;wherein the anionic compound, in solution, forms a thioglycolate anion or an anion of N-acetylcysteine; and(b) then rinsing the hair.