TRESemmé keratin smooth shampoo is a salon shampoo designed with lamellar-discipline technology formulated to transform your frizzy, unruly hair into a smooth, sleek look for up to 72 hours. Formulated with keratin for smooth, shiny manageable hair, this keratin hair treatment is infused with marula oil to seal down the cuticle and prevent humidity from penetrating the hair for ultimate frizz control. To use, apply a generous amount of shampoo to wet hair. Massage gently from roots to end to work into a lather. Rinse thoroughly. Follow with TRESemmé keratin smooth conditioner. From our origins in salons, we have always been driven by a simple truth: Every woman deserves to look fabulous, like they've just stepped out of the salon, without spending a fortune.