NIOXIN Starter Kit- System 4 includes NIOXIN Cleanser, a daily volumising cleanser. NIXION Scalp Therapy, a daily volumising hair and scalp conditioner and NIOXIN Scalp Treatment, a daily leave in scalp treatment. NIOXIN Starter Kit- System 4 together with its technology adds thickness and strength to your hair, whilst energizing the scalp giving it a youthful appearance and fuller healthier hair.