NWT OleHenriksen Glow2OH 7% AHA Exfoliating Dark Spot Toner (Full-Size). Why you’ll love it: Alpha hydroxy acids (AHAs) are some of the most recommended and reliable exfoliating ingredients in skin care, thanks to their brightening and line-smoothing abilities. In this toner, two AHAs—glycolic and lactic acids—are paired with brightening licorice extract and hydrating glycerine for a dark-spot-fading, glow-inducing formula. “I test all sorts of exfoliators for work, but return to this little blue bottle time and time again,” says Allure’s Nicola Dall’Asen, who uses the treatment once or twice a week. “It delivers clear, spotless, and blindingly dewy skin.” How you’ll use it: Pour a few drops onto a cotton ball, and smooth it over clean, dry skin before bed. (Test a small amount on your forearm first, and use sunscreen during the day, even though you’re applying the toner at night). What it is: A non-stripping gentle yet powerful daily toner, supercharged with high-potency AHAs (glycolic and lactic acids), to reduce the look of dark spots in as little as seven days. Skin Type: Normal, Dry, Combination, and Oily Skincare Concerns: Dark Spots, Fine Lines and Wrinkles, and Dullness and Uneven Texture Formulation: Lightweight Liquid