Nioxin System 1 Scalp Therapy - for fine, non-chemically enhanced hair in the early stages of thinning - is a conditioner that moisturizes and energizes the scalp. 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 1 is a 3-Step system for FINE, NATURAL HAIR EARLY STAGES OF THINNING that consists of the Cleanser, the Scalp Therapy and the Scalp Treatment. 9 out of 10 people perceive a thickening effect!