Nioxin System 4 Cleanser + Scalp Therapy 33.8oz/Liter Duo

NIoxin System 4 Cleanser Shampoo and Scalp Therapy Duo for Noticeably Thinning Chemically Treated Hair gently, cleanses and removes environmental residue and DHT. Adds thickness from inside the cuticle and strengthens the hair shaft. Provides color protection for hair and helps safeguard the scalp from the drying effects of chemical services. Helps protect nutrients and provides moisturizing nourishment to the scalp and hair.