Nioxin - Diamax Advanced Hair Thickening Treatment 100mlNioxin Diamax Advanced Xtrafusion Treatment increases the hair thickness of each strand, leaving the hair instantly fuller looking*. With just one use, the hair becomes more manageable, fuller and noticeably thicker. Using HTX technology that contains ingredients like caffeine and niacinamide, Diamax Advanced contains 25% more active ingredients than Diamax to thicken the hair at the roots, whilst also protecting against breakage. Try this treatment,