12 Best Products, Tested By Editors

This consistently ranks as one of Cosmo’s top vitamin C serums (and tbh, serums in general), because it’s filled with all of the best ingredients to boost your skin’s glow. For example, it’s got l-ascorbic acid, the purest and most potent form of vitamin C, which your skin <3s for brightening, firming, and protecting. But it also combines hydrating hyaluronic acid and vitamin E, anti-aging ferulic acid, and smoothing peptides.

Editor review: “I’ve tested over a hundred vitamin C serums in the last few years, and I consistently go back to this simple yet efficacious pick from Paula’s Choice. It feels lightweight on my skin, immediately adding a radiance to my complexion. And unlike many others I’ve tested, it doesn’t irritate or break out my acne-prone face. It’s just as good as the $$$ one you see all over your IG feed, IMO.” —BG

  • Key ingredients: Vitamin C, vitamin E, ferulic acid, peptides, hyaluronic acid
  • How often to use: Daily
  • How to use: Pat onto clean skin in the morning, then follow with thicker serums and always SPF
  • Skin type: All

Glowing customer review: “This serum is lightweight and rapidly absorbs into my skin. It doesn’t leave behind a residue or greasy layer and you can pretty much immediately move on to the next step in your skincare. Whether it reduces my hyperpigmentation or promotes a more even complexion, I don’t know, but I can say it makes my skin look radiant, and that’s enough for me. I’m really enjoying the appearance and texture of my skin.”

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