12 Best Glycolic Acid Skin-Care Products For Brighter, Smoother-Looking Skin

Glycolic acid can and should be used in conjunction with other AHAs, including lactic and citric acids, which is what the REN Skincare Glycol Lactic Radiance Renewal Mask ($58) does. This one contains four different AHAs: glycolic acid from pineapple, lactic acid from passion fruit, citric acid from lemon, and tartaric acid from grape create multi-action exfoliation. The result is refreshed, rebalanced, resurfaced skin and a reduction in congestion, fine lines, and acne.