Biolage Hydra Source Daily Leave-In Tonic - 8.5oz is a lightweight, hydrating spray designed to replenish moisture and improve manageability for dry, stressed hair. Infused with aloe vera and other nourishing botanicals, this leave-in tonic helps detangle, smooth, and soften without buildup. Ideal for daily use, it boosts hydration between washes and leaves hair feeling refreshed, revitalized, and touchably soft with a healthy, natural-looking shine.