Can be used on all hair types. The Allure 4300 Ionic Tourmaline Ceramic 1875W Hair Dryer has long lasting turbo power and ultra-light ergonomic design, uses natural crystal power with superior ion production for simply superior results. Ions diffuse free water molecules into micro fine particles. Smaller drops are easier to dry which means less time the hair is subject to heat. Micro drops of water are easily absorbed into the hair, locking in moisture and keeping hair hydrated. Negative ions cancel out harmful positive static charges and remove unwanted frizz. Also includes a professional narrow air-flow concentrator, styling pick attachments, and many more convenient features.