Compositions used in permanent alteration of hair color

Details Compositions used in permanent alteration of hair color Compositions used in permanent alteration of hair color

C - Chemistry, Metallurgy

11

D

167/302

C11D 3/32 (2006.01) A01N 25/04 (2006.01) A01N 25/14 (2006.01) C07D 499/00 (2006.01) C11D 1/58 (2006.01)

Patent

CA 1312288

67369-470 ABSTRACT A permanent hair color altering composition comprising an aqueous preparation on the basis of melanin dissolution and/or oxidation of a hair colorant dye intermediate, which contains as a swelling and penetration agent, an N-alkyl pyrrolidone wherein the alkyl group contains between 8 and 22 carbon atoms.

540513

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