We get it: It’s difficult to avoid using heat on your hair (after all, frizz doesn’t tame itself!) So to prevent fried strands and split ends, using a heat protectant is imperative. With just a few spritzes or a dab of cream, your hair can stay healthy and damage-free. But how does heat protectant actually work? And is it really all that necessary to use a so-called heat protectant if you’re already using blow-dry creams and serums galore? To find out, we turned to celebrity hairstylist Jill Buck from Nine Zero One Salon. Do I Need a Heat Protectant? The answer? Yes,100%. You should be using heat protectant. “Whether you choose to air- dry or style with heat, your hair is just like your skin,” says Buck. “It needs moisture in order to keep it from becoming dry and brittle.” While your shampoo and conditioner can help nourish your hair, balance your scalp and restore the hair’s cuticle, applying a heat protectant is key to preventing further damage or dryness. “They’re designed to be the first line of defense against any heat before your natural oils and moisture,” says Buck. We love the Carol's Daughter Monoi Repair + Protect Multi-Styling Milk because it calms frizz, amps up shine and offers 450-degree heat protection.