The ultimate anti-hair loss remedy has arrived! This 70ml Nioxin Pro Clinical's Anti Hair Loss Serum is a leave-on scalp treatment, clinically proven to reduce hair loss* in only 8 weeks! How? Via improved hair anchorage, while thickening hair from the first use. Key Ingredients: Formulated with innovative ingredients including SANDALORE™, caffeine, lauric acid, and niacinamide. Together they work to stimulate and nourish the hair follicles to prolong the growth cycle and improve hair resistance for fuller-looking hair. *By 20% on average