Nioxin Scalp Revitaliser System 1 is a lightweight conditioner that helps provide hair resilience & moisture balance control for normal to thin looking hair. Reduces breakage & associated hairloss. Leaves scalp feeling refreshed. How it works: Bio Amp: Helps provide thicker-looking hair by increasing the fullness of each hair str&. Activ-Renewal: Helps cleanse & provide a refreshed scalp environment & healthy shine to natural hair. Transactive Delivery System: Helps clean away follicle-clogging sebum & environmental residues from the scalp skin.