The Revlon RVDR5105N1 Laser Brilliance Infrared Heat dryer helps maintain hair's natural moisture balance to prevent over drying for faster styling, maximum shine, softness, and control. Infrared heat penetrates directly into the cortex of hair, heating it from the inside-out. Ionic technology eliminates static electricity caused by the styling of hair and quickly helps to eliminate frizz. Ceramic infrared heat penetrates hair quickly and evenly to avoid hot spots and helps straighten hair in a fraction of the time with superior results. Cold shot button releases cool air to lock-in the style.