Sultra's After Hours Collection Thermalite Dryer Brush is guaranteed to dry your hair lightning fast while creating the most pumped-up volume and attractive style. Combines Far Infrared technology and ion emissions for healing hair and scalp. Exclusive THERMALITE Technology combines FAR INFRARED RAYS with a dedicated ION EMITTER that actually promotes healing of the hair and scalp while you style. The Far Infrared Rays rejuvenate the scalp, help remove excess build-up and promote healthy hair growth. Simultaneously, the Ion Emitter produces a continuous flow of 100% electrically charged molecules, ensuring completely frizz-free, healthy-looking hair. Use on wet or damp hair. Brush through hair to create the style you desire.