Dry hair often causes frizz and split ends and lacks shine. Inspired by the ever-hydrated, never dry aloe plant, Biolage Hydra source Shampoo helps optimize moisture balance and protect against future damage for healthy looking hair. This salon professional hair treatment gives you up to 15X more moisturized hair after just one application.* *When using the professional products system of Hydra source shampoo, conditioner and leave-in tonic vs. a non-conditioning shampoo.- Hydra source 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 and natural hair- Quench dry, thirsty hair with state-of-the-art formulas inspired by nature that mimic the moisture-retaining properties of the aloe plant. Hair's hydration levels are optimized through the absorption and retention of moisture.- Size: 33.8 fl. oz.- For directions and ingredients, see "Additional Info"- Made in USA