Lactic Acid 10% Exfoliating Serum With Hyaluronic Acid for Dry Skin

The stronger of the two lactic options, meant for skin already used to weekly acid nights. Lactic acid at 10% loosens the dull, flaky layer sitting on the surface, while hyaluronic acid rides along to keep the finish from feeling stripped — a combination that suits drier complexions in particular. Smooth a few drops over clean, dry skin in the evening, avoiding the eye contour, then follow with something rich. Once or twice weekly is plenty at first, and sunscreen the next morning matters.