What's the Perfect Night Treatment for Your Skin?
Photo: Marko Metzinger/Studio D
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If you have problems with acne, salicylic acid in Skinceuticals Blemish + Age Defense ($78; skinceuticals.com
dirt and oil to prevent breakouts; dioic acid lowers skin's oil production; glycolic acid softens and smooths texture.
Do you also need to treat specific pimples?