System 4 Kit Includes: Shampoo 10. 1 oz, Scalp Therapy Conditioner 10. 1 oz and Scalp & Hair Treatment 3. 38 oz. Achieve thicker, fuller-looking hair and restore moisture balance with Nioxin's 3-part System 4 for Colored Hair with Progressed Thinning. This unique set of 3 thinning hair products helps strengthen hair resilience against cuticle damage, reduces hair fall due to breakage and delivers denser-looking hair. This professional thickening Nioxin treatment cleanses, optimizes and treats colored hair, leaving it moisturized and vibrant. Nioxin Cleanser Shampoo 4: removes sebum and environmental residues from the scalp and hair. Nioxin Scalp Therapy Conditioner 4: a lightweight conditioner that helps provide hair resilience and control moisture balance. Nioxin Scalp & Hair Treatment 4: helps prevent hair loss due to breakage, providing a refreshed scalp environment. | Nioxin System Kit 4 | Dermstore