Matrix Biolage Strengthening Shampoo for Damaged & Chemically Treated Hair is an everyday use anti damage formula. Improves your hairs natural elasticity and inner strength. Made with Hydrolyzed Corn Protein, Hydrolyzed Soy Protein, Salicylic Acid, Citric Acid. This is a unisex product. Comes in liquids form. This is a set of two shampoos. Each shampoo is 13.5 oz. To use apply shampoo onto wet hair. Lather well and rinse. Repeat of needed.