System 3For Fine, Chemically Enhanced, Normal to Thin-Looking HairA 3 step program to aid hair loss. NIOXIN Scalp Activating Treatment™The third step in the 3 step program. A vitamin-enriched, daily leave-in scalp treatment – delivering 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:BioAmp™adds thickness and strength.Glyco-Color Shield™ Dual protection technology designed to safeguard the scalp skin and preserve hair color. Scalp Protection: Formulated with herbs and botanicals to moisturize and help guard the scalp skin from chemical service residues.Hair Color Protection: Custom-built molecular technology designed to provide CLINICALLY PROVEN* color protection and vibrancy.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.