NEW 4 piece set (2 shampoo's & 2 conditioner's) Nioxin Scalp Therapy System 1. From smoke-free home: Nioxin Scalp Therapy System 1 - a conditioner that moisturizes and energizes the scalp. BioAMP adds thickness from inside the cuticle and strengthens the hair shaft. Bionutrients and Activ-Renewal help provide a more youthful-looking scalp complexion. Nioxin Cleanser System 1 - a shampoo for fine hair in the early stages of thinning - gently cleanses and removes toxins, residue and DHT (Dihydrotestosterone). BioAMP adds thickness from inside the cuticle and strengthens the hair shaft. Bionutrients and Activ-Renewal help provide a more youthful-looking scalp complexion.