What’s the Difference Between a Serum, Essence, and Toner?
All Your Questions About Serums, Essences, and Toners — Answered
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The key to radiant, glowing skin: vitamin C. Not only does it help brighten dark spots but it also helps protect against environmental aggressors. The Tula Brightening Treatment Drops Triple Vitamin C Serum ($48) contains three types of vitamin C and doesn't feel sticky when applied.