Niacinamide is EVERYWHERE in the skincare world, and in some ways for good reasons. It’s a little jack-of-all-trades type of molecule that has actual clinical evidence that ranges from improving skin barrier function, reduce sebum production, and brighten hyperpigmentation. But the chemists have noticed in recent years that products now have more and more niacinamide. 10%, 15%, or even 30% niacinamde serums seem fairly easy to obtain. So in this episode, we review some of niacinamide’s most famous clinical tests and answer the question “is there such thing as too much niacinamide?”