Nioxin scalp therapy is a lightweight conditioner that helps to provide hair resilience and control moisture balance for normal to thin-looking hair. It is a part of system 1 that contains 3 specialised technologies. Bioamp, Transactive delivery system and activ-renewal. Directions: Apply from the scalp to ends. Leave on for 1-3 minutes. Rinse. Follow with Nioxin scalp treatment.