Dry hair often causes frizz, split ends and lack of shine. Inspired by the aloe plant that never seems to dry, Biolage HYDRASOURCE Shampoo helps optimize moisture balance for healthy looking hair. HYDRASOURCE shampoo gently cleanses hair leaving it moisturized and shiny. Moisture levels in the hair are balanced, increasing softness and manageability. Paraben-free formula is also suitable for color-treated hair.