In skin care, the acids category is technically quite broad (retinoic and oleic acids aren't necessarily the ones we think about right away). For the purposes of this letter, I'm focusing on the ones like glycolic and salicylic, which help to slough off dead skin cells. Especially in these fall and winter months, I like to exfoliate once or twice a week using an acid-based treatment; and when I get a pimple, a gel with salicylic acid is my go-to. For a deeper dive on acids in skin care, listen to the acids episode of our new podcast, The Science of Beauty, below.
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Executive beauty director Jenny Bailly and I sit down and chat with dermatologist Laurel Naversen Geraghty to learn more about powerhouse exfoliating ingredients alpha and beta hydroxy acids and their skin benefits.