Nioxin System 2 Natural Hair Progressed Thinning Cleanser Shampoo and Scalp Therapy Revitalizing Conditioner Set. This comprehensive set includes a 33.8 oz Cleanser Shampoo and a 33.8 oz Scalp Therapy Revitalizing Conditioner both expertly formulated to address the needs of those experiencing hair thinning or loss. The Cleanser Shampoo gently removes debris and nourishes the scalp with essential nutrients creating a clean and optimal environment for healthier hair growth. The Scalp Therapy Revitalizing Conditioner strengthens and adds volume to your hair leaving it looking thicker and fuller. These products are part of Nioxin s renowned 3-step system known for its efficacy in promoting thicker denser-looking hair.