Biolage Color Last Shampoo is essential for maintaining colored-treated hair health and repairing damage. This nourishing shampoo protects hair from environmental damage and strengthens hair while hydrating. Benefits Low pH shampoo for color treated hair helps prolong color vibrancy Gently cleanses to prevent unnecessary stripping of color Paraben-free Suitable for color-treated hair and non color-treated Research Results Helps preserve salon-vibrant color for up to 9 weeks* *When using the professional products system of ColorLast shampoo and conditioner vs. a non-conditioning shampoo Apply to wet hair and lather with a massaging motion. Rinse thoroughly. In case of contact with eyes, rinse them immediately. Biolage recommends that you pair the Color Last Shampoo with Color Last Conditioner to help maintain your color-treated hair. Conditioner available in seperate listing. bundle the 2 and get the set for $55