Nioxin System 3 Cleanser Shampoo & Scalp Therapy Conditioner Set. This expertly designed duo is your answer to preserving your hair s color and promoting a healthier scalp. Each set includes generous 33.8 oz bottles of both the cleanser shampoo and scalp therapy conditioner ensuring a long-lasting supply of the best in hair care. Nioxin is renowned for its groundbreaking approach to addressing thinning hair and promoting overall scalp health. This System 3 set is tailored to meet the unique needs of colored hair providing you with an effective solution for extending the life of your color treatment.