System 6For Medium/Coarse, Natural, Normal to Thin-Looking HairA three step program to aid hair loss. NIOXIN Scalp Treatment™Third step in the three step program. A daily leave-in scalp treatment that delivers essential botanicals,nutrients, antioxidants and vitamins onto the scalp skin and hair to help safeguard against environmental residue and DHT buildup on the scalp. May cause temporary redness after application.Features:SmoothPlex™ provides moisture, natural shine and smooth control to hair.Activ-Renewal™ delivers bio nutrients for a more youthful-looking scalp and fuller, healthier-looking hair.Transactive Delivery System™ delivers essential nutrients onto the scalp which improves the appearance of thinning hair and creates an environment for fuller, healthier-looking hair.