Nioxin System 3 Cleanser -- for fine, chemically enhanced, normal to thin looking hair -- gently cleanses and removes environmental residue and DHT (Dihydrotestosterone). BioAmp adds thickness from inside the cuticle and strengthens the hair shaft. Active-Renewal helps provide a more youthful-looking scalp complexion. TransActivee Delivery System is a time-release delivery system formulated with vitamins that provides moisturizing nourishment for the scalp and hair. System 3 is a 3-Step system for FINE, CHEMICALLY ENHANCED HAIR EARLY STAGES OF THINNING that consists of the Cleanser, the Scalp Therapy and the Scalp Treatment.