Treating acne (and the discoloration it leaves behind) is no easy task, but the best azelaic acid serums can speed up the ...
melatonin and azelaic acid) and niacinamide to help with hyperpigmentation, oil production and reducing the size of pores. This serum’s available in two sizes: a mini 15 mL version for $18 ...
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 ...