Shampoo with amino acid complex. Cleanse + smooth for workable, smooth hair. Sulfate free. This sulfate free smooth performer shampoo gently cleanses, fights frizz and helps tame unruly hair while adding softness and shine for workable, smooth hair. Amino Acid Complex: Our shampoos and conditioners, with amino acid complex, work double time as a system to help strengthen the inside of your hair while protecting the outside from everyday breakage.