Dyson Supersonic™ hair dryer in black/nickel The Dyson Supersonic™ hair dryer is engineered to protect hair from extreme heat damage, with fastest drying⁺ and controlled styling to help increase smoothness by 75%, increase shine by up to 132% and decrease frizz and flyaways by up to 61%.* Fastest drying.⁺ No extreme heat. Engineered for different hair types.