Dyson’s new straightener has liquid cooling pipes to reduce hair damage

Dyson’s $329 Corrale CoolShine straightener adds liquid-cooled copper plates that actively dissipate heat, aiming to lower residual temperature and leave hair smoother, softer and cooler after styling. The $249 Airsmooth dryer brush combines drying and styling with anti-snag bristles, expanding Dyson’s 2024 hair-care lineup.