Nioxin Scalp & Hair Leave-In Treatment

New in box, never used. System 2 - fine/progressed thinning,natural hair (3.4 oz bottle) How to use: apply directly to entire scalp. Gently massage into scalp. Do not rinse. Use daily. May cause temporary redness to scalp after application. This leave-in hair and scalp treatment is particularly formulated for natural thinning hair. With Scalp Access 2.0, Nioxin's treatment helps prevent hair loss due to breakage, providing a refreshed scalp environment and thicker, fuller-looking hair.