RENEW treats damaged and over-processed hair by naturally sealing the cuticle with a powerful amino acid complex.   RENEW promotes the appearance of thicker, fuller, and longer hair. Actiiv Renew Repairing Treatment Shampoo helps restore and repair dry, damaged, and brittle hair. This repairing treatment shampoo uses natural ingredients to strengthen and promote healthier hair that is less prone to split ends and breakage. It also uses willowherb to help keep hair healthy, thicker, fuller, and longer.