Enjoy thicker, fuller-looking hair with Nioxin Diaboost Xtrafusion Treatment. This concentrated formula helps increase the hair thickness of each strand, leaving the hair looking instantly fuller, noticeably thicker and more manageable. Using HTX technology and enhanced with stimulating ingredients such as caffeine, niacinamide and panthenol, Diaboost thickens the hair at the roots, whilst also protecting against breakage.