Nioxin® System 4   Nioxin® System 4 is a 3-Step system for fine, chemically enhanced, noticeably thinning hair that consists of the Cleanser, the Scalp Therapy and the Scalp Treatment.   A 3-step system to cleanse, moisturize and nourish the scalp and hair. BioAMP adds thickness from inside the cuticle and strengthens the hair shaft.   Glyco-Fused Complex helps safeguard the scalp from drying effects caused by chemical services and extends the longevity and vibrancy of color Unique Scalp Access delivery system helps protect nutrients as they nourish the scalp and hair. NIOXN Scalp Treatment System 4 contains SPF 15 to protect scalp skin from harmful UVA/UVB rays.   NIOXIN® Thinning Hair System 4 For Fine, Chemically Enhanced, Noticeably Thinning Hair Starter Kit Includes:   ·          NIOXIN Cleanser System 4 - 4.2 oz ·          NIOXIN Scalp Therapy System 4 – 3.4 oz ·          NIOXIN Scalp Treatment System 4 -3.4 oz