Treating acne (and the discoloration it leaves behind) is no easy task, but the best azelaic acid serums can speed up the ...
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 ...
Skinoren is a 20% azelaic acid cream which works to kill spot-causing bacteria and it can help reduce redness, too. Duac gel is a benzyl peroxide-based product that I was told to apply directly to ...