Wella Professionals Ultimate Smooth Shampoo is a professional-quality product that deeply purifies hair while nourishing it, giving it softness and shine. | To combat frizz. It is formulated with metal purifier, a metal purifier that helps detoxify hair from metal residue and other substances that remain on the scalp. Benefits: | Formulated with metal purifier technology to detoxify hair from metals. Enriched with Squlenne and Omega-9 to deeply nourish hair from within and strengthen and replenish the outer hair barrier. Dermatologically tested and suitable for color-treated hair. For best results, use with conditioner, mask (weekly), or Ultimate Smooth Miracle Oil Serum.