L'Oréal Professionnel Serie Expert Liss Unlimited Shampoo cleanses hair while replenishing and smoothing unruly hair for a manageable, frizz-free finish. The nourishing formula is enriched with Keratinoil complex technology, a Pro-Keratin complex of amino acids and wheat protein that mimic the hair’s natural keratin structure to help strengthen and protect hair. The addition of Kukui Oil and Evening Primrose oil helps to control frizz, smoothe hair, and protect against humidity.