For blow-dry styling medium to long hair. Tourmaline, a gemstone that naturally releases ions, is crushed into a fine powder and infused into the nylon bristles and ceramic barrels. The ions tighten the cuticle layer and seal in natural oils, reducing static electricity, leaving hair shiny and silky. Ceramic coating, a nonbreakable powder layered over the metal base of the brush, evenly distributes and holds heat longer, so hair dries faster.