Experts Say These 10 Tips Will Keep Your Hair Sweat-Free at the Gym

It might sound counterintuitive to add oil at the same time you're trying to reduce it, but Rivera says applying a small amount can do wonders. "Milbon Luminous Bodifying Oil ($36) is great for fine and coarse hair. The oil blocks humidity and keeps hair smooth. Work a dab of the product into towel-dried hair and blow-dry the day of your workout to reduce frizz from sweat," he advises.