What’s the Difference Between a Serum, Essence, and Toner?
All Your Questions About Serums, Essences, and Toners — Answered
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The Ordinary Glycolic Acid 7% Toning Solution ($9) offers mild exfoliation, but because of the powerful hero ingredient in the toner, it's best to only use it at night. Swipe it on your skin after you wash your face to address uneven texture and clogged pores.