KERATIN THERAPY It has gentle formulation unlike other keratin treatments. Seratin Keratin Therapy shampoo is developped at our R&D department with carrefully selected ingredients and is free from any of the harsh chemicals or fillers which can othervise harm your hairs. The light weight formulation cleanses without leaving any greasy residue or weighing your hair down. It's one of the universal shampoo in the market that works equaly great on all hair types.