Nioxin is the world's #1 professional brand exclusively dedicated to scalp care and hair thinning. Founded by Eva Graham — inspired by her own hair loss journey — Nioxin pioneered a skincare-first approach to the scalp, recognizing that healthy hair can only thrive on a healthy foundation. Backed by over 30 years of research and clinically tested formulas, Nioxin's personalized system kits, serums, and treatments deliver visibly thicker, fuller, and healthier-looking hair for men and women.