METHOD AND COMPOSITION FOR PERMANENTLY SHAPING HAIR

摘要

A composition for permanent hair shaping comprising (i) 0.5 to 35 % by weight of a N-alkyl-2-mercaptoacetamide of formula (I), wherein R₁ is a straight chain alkyl residue with 3 to 6 carbon atoms or a straight chain hydroxyalkyl with 3 to 6 carbon atoms, R₂ and R₃ are, independently from each other, hydrogen or straight chain alkyl residues with 1 to 3 carbon atoms, or the salt thereof, (ii) 0.1 to 15 % by weight of at least one cationic polymer and (iii) 5 to 95 % by weight of water; and a method of permanently shaping hair using said composition.