Azelaic Acid Is Having a Moment—But What Does It Actually Do?

It seems like every other week, there's a new skincare ingredient everyone's obsessing over. And now, azelaic acid is that girl for fall and winter. With so many new products on the market...

It seems like every other week, there's a new skincare ingredient everyone's obsessing over. And now, azelaic acid is that girl for fall and winter. With so many new products on the market...