If you hate blow-drying your hair using a hairdryer but love the salon-worthy finish, you might want to look into a barrel brush blow dryer, which just so happens to be an Amazon bestseller. Traditionally they're the same size as a normal barrel hair brush, but not this one. If you find that most are too small for your desired result, we recommend trying the Revlon Pro Collection Salon One Step Hair Dryer (£44). This huge brush combines heat and smoothing bristles for a just-stepped-out-of-the-salon hairstyle.