The Nioxin 3D Intensive Diaboost Xtrafusion Treatment is a professional-grade formula designed to increase the diameter of each individual hair strand. This lightweight treatment provides instant thickening effects, leaving hair looking fuller and more manageable from the very first application. Formulated with advanced technology, this treatment helps protect hair against breakage and provides a boost in volume and texture. It is suitable for daily use on various hair types to enhance overall hair density and health.