We are Nioxin, the #1 Professional brand for thicker, fuller hair. We are pioneers of a hair movement that's never going to stop. We believe everyone should experience the uplift that comes from having hair that looks and feels the way they actually want it to: Thicker. Fuller. Healthier. Built on a legacy of clinically proven solutions, we turn scalp science into true scalp care and hair thickening products. The kind of products with proven results. Because everyone, yes everyone, deserves to grow thicker, fuller hair they can see and feel. Nioxin Grows Results(TM). TEST RESULTS Long-Lasting Hairstyles: Nioxin Density Defend Strong Hold Spray helps keep your hairstyles in place all day long. Provides Firm Hold: This hairspray provides a firm hold, keeping your hair styled and secure without stiffness or flaking. Adds Shine and Definition: The formula adds shine and definition to your hair, enhancing the overall look of your hairstyles. Resists Humidity: Strong Hold Spray is humidity-r