Amazon Prime Big Deal Days includes a rare sale on Dyson's Supersonic hair dryer—its lowest price ever. Here's what you need to know about the deal.

As Mashable's shopping reporter on the beauty tech beat, I've made it no secret that I think the Dyson Airwrap — versatile multi-styler though it may be — is overpriced. While nine times out of ten I recommend opting for an Airwrap alternative, a good Airwrap deal does change things, and for Prime Day, Amazon has delivered exactly that.

Not only does it cut your drying time in half, but it also protects your hair from heat damage, leaving it smooth, shiny and full of life. Whether you’re prepping for a big event or just trying to breeze through your morning routine, this Dyson Supersonic Hairdryer deal will make sure every day is a great hair day.