Nioxin Diaboost Thickening Xtrafusion Treatment increases the thickness of the hair for a fuller appearance. Focusing on the decreasing diameter on thinning hair strands, Diaboost Thickening Xtrafusion Treatment is formulated using breakthrough HTX Technology which increases the thickness of each individual hair strand. A blend of Niacinamide, Caffeine and Panthenol brings skincare science to the hair and is clinically proven to penetrate deep into the hair shaft to strengthen resilience and reduce hair loss due to breakage. Diaboost Thickening Xtrafusion Treatment has a silky, lightweight texture and an amazingly fresh fragrance that is a dream to apply. The targeted spray application is easy to use and the non-sticky formula is suitable for all hair types.