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Niacinamide vs. Retinol: The Honest Breakdown Your Skin Has Been Waiting For
Both niacinamide and retinol have earned their spots in the skincare hall of fame—but they're not interchangeable, and using the wrong one (or the wrong combo) can do more harm than good. Here's the no-fluff, science-backed breakdown of what each ingredient actually does, who it's right for, and whether you need one, the other, or both.