Treating acne (and the discoloration it leaves behind) is no easy task, but the best azelaic acid serums can speed up the process. If you're a skin-care enthusiast, you've likely ...

Despite not being as common as some ingredients, azelaic acid is definitely worth swotting up on. This is what you need to know. It’s one that’s becoming increasingly popular after years of ...

5. Azelaic Acid How to use it: Azelaic acid can be found in prescription-strength creams as well as a prescription gel. There are also lower-grade options available in over-the-counter serums and ...