Have you heard of the benefits of tea tree oil? Not only is it known to fight acne, it also soothes dry, irritated skin. Briogeo B. Well Organic + Australian 100% Tea Tree Oil ($32) is an organic non-GMO oil that's sustainably farmed and steam-distilled for maximum strength. Plus, if you have scalp acne, or any itchiness up top, this can be used there, too. It's also earned 4.8 out of 5 stars, with 97 percent of those shoppers saying they'd recommend it at Sephora.