Amazon Prime Day deals, the summer savings have reached the highly-coveted Dyson Supersonic hair dryer. Right now, the Dyson Supersonic Hair Dryer is $100 off at both Dyson and Sephora. This Dyson deal brings the luxe hair dryer down to its lowest price ever.Save $100 on the new, special-edition Dyson Supersonic hair dryer in Vinca blue and rosé, with matching Dyson-designed presentation case and exclusive brush and comb.Since its release, the Dyson Supersonic has been a favorite hair tool among celebs and beauty enthusiasts alike. Like other Dyson hair tools, the Supersonic hair dryer helps protect hair from extreme heat damage.