Nioxin Diameter System 4 Scalp & Hair Treatment (Colored Hair, Progressed Thinning, Color Safe) 100ml/3.38oz

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