Nioxin, the #1 Professional brand for thicker, fuller hair. Enhance your hair care routine with the Nioxin System 2 Shampoo, specifically formulated for noticeably thinning hair. This 1000ml shampoo gently cleanses the scalp and hair, helping to remove excess sebum, environmental residues, and product buildup. Its nourishing formula promotes a healthy scalp environment, making it perfect for daily use.