Nioxin Scalp Treatment 6 is the last step in the Nioxin System skin regimen for medium/coarse, non-chemically treated hair that is noticeably thinning. Nioxin Scalp Treatment 6 stimulates the scalp by breaking down sebum with residues and DHT. The topical, leave-in hairloss treatment is meant to be used daily. Nioxin Scalp Treatment 6 delivers nutrients, vitamins, botanicals, cytokines and antioxidants to the scalp and hair. It protects hair and scalp from UVA/UVB rays with SPF 15. The formula contains SmoothPlex, which moisturizes, smoothes and shines the hair. A Unique Scalp Access Delivery System protects nourishing nutrients while Active Renewal promotes a younger-looking scalp.