Dry hair can cause frizz, static & flyaways. Inspired by the aloe plant that never seems to dry, Biolage Hydrasource moisturizing Daily Leave-In Tonic for dry hair helps optimize moisture balance for healthy looking hair. Give her up to 15X more moisturized hair after one application. To use: Mist lightly on damp hair & comb through from root to tips. Do not rinse.