128363-82-6Relevant articles and documents
Cosmetic composition for use in permanent deformation of hair contains as a reducing agent a derivative of N-(mercapto alkyl) succinamic acid or of N-(mercapto alkyl) succinimide
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, (2008/06/13)
A cosmetic composition for the first stage of an operation for the permanent deformation of hair contains, as a reducing agent, a compound having the formula STR1 wherein, n is 2 or 3; A represents a divalent radical selected from (i) --(CH2)m --, wherein m is 2 or 3, STR2 wherein R3 and R4, each independently, represent alkyl having 1-4 carbon atoms, or R3 and R4 together with the adjacent carbon atoms form a cyclohexane ring, and STR3 wherein R5 and R6, each independently, represent hydrogen, alkyl having 1-4 carbon atoms, or R5 and R6 together with the adjacent carbon atoms form a benzene ring; R1 represents hydrogen; R2 represents hydroxy, or R1 and R2 taken together form a simple bond, and the salts of an organic or mineral base of said compound in free acid form.