Nioxin System 2 Duo is a dynamic duo designed to cleanse and nourish your scalp and hair. The Cleanser Shampoo gently removes impurities, excess oil, and debris to promote a healthy scalp environment. The Scalp Therapy Conditioner then moisturizes and strengthens the hair, leaving it looking fuller and thicker. Together, these products work to improve the overall health and appearance of your hair, making it a must-have for anyone looking to achieve a fuller, thicker head of hair.