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Medical review by Keira Barr, M.D. Board-certified dermatologist. Keira Barr is a dual board-certified dermatologist and founder of the Resilient Health Institute. When it comes to skin care, most of us have a favorite acid we reach for to tackle our greatest complexion concerns. But if you have sensitive skin, you likely know that slathering any ol' acid over your complexion just isn't a good idea. So if your skin is easily irritated, the best sensitive-skin-friendly acid out there is lactic acid. It can help improve fine lines, reduce breakouts, and exfoliate dead skin. Here, our deep dive. WHAT IS LACTIC ACID? Lactic acid is an alpha-hydroxyl acid (AHA), better known as an exfoliating a... Full story

1 April