No. 5: Heat protectant spray If you're using hot tools, a heat protectant spray is a must. "With the power in modern blow dryers and the high heat of flat irons [450 degrees in some cases], we need to make sure our hair stays healthy to look its best," Potempa says. But if you're wary of putting yet another product on your hair, Babaii suggests a multi-tasking spray like IT&LY HAIRFASHION Pure Texture, $16.49. "[It] serves as a root booster and helps create those beach waves. You can also use it to protect against humidity and heat damage."