The Dyson Corrale Straightener is only straightener with flexing plates that shape around your hair, gathering it neatly together on each pass. This extra control means you can achieve the same style but with less heat, and therefore half the damage. It also means enhanced styling, for reduced frizz and fewer flyaways. The Dyson Corrale Straightener can be used corded, or cord-free to provide extra versatility and freedom while styling. Before using, charge your straightener to 100% to maximize performance.Thermal damage measured by hair strength when creating an equivalent hair style. Tested on Corrale with flexing plates vs. Corrale with solid plates.Direct image analysis vs. untreated hairExact run time may vary based on hair type and styling technique.