The Dyson Supersonic Hair Dryer, $399; DysonThe Dyson is lightweight and dries your hair faster without drying it out. Exacting air-flow settings and four heat levels give you more control while styling your hair, too. You can even get this one with 23.75-karat gold details. “They’re ridiculously expensive, but we absolutely love them,” says Depeyrot.T3 Single-Pass Luxe 1-inch Straightening and Styling Iron, $180; T3“A professional-quality flat iron is worth the investment to make hair have a bit of a bend or to give it gloss,” Depeyrot says. Some flat irons don’t spread heat evenly across the surface of its plates. We love the SinglePass for its luxurious design and ceramic plates.Ceramic + Ion Turbo Vent Combo Round Brush, $23.95; Olivia GardenOlivia Garden brushes come in flat and round styles in various sizes. When blow-drying with a flat brush, make sure to drag the brush to the very end of the hair, avoiding a “fish hook” gesture that might cause breakage.Ceramic + Ion Thermal Hairbrush, $19.95; Olivia Garden“Ceramic-covered metal hair brushes diffuse heat more evenly,” says Sim.