Nioxin - Diameter System 4 Scalp & Hair Treatment (Colored Hair, Progressed Thinning, Color Safe) 200ml/6.76oz

Step 3 of 3D Care System Kit 4. Specially designed for colored hair with progressed thinning. Features Scalp Access Delivery 2.0 containing UV-protection ingredients. Provides hair resilience & controls moisture balance. Unveils thicker & fuller-looking hair. To use: Shake well before use. Apply evenly to the entire scalp. No need to rinse.