Azelaic acid treats active breakouts and fades post-acne marks at the same time, with a side-effect profile mild enough that it's often recommended when stronger actives aren't tolerated. It's also one of the few actives considered safe in pregnancy, which matters given how many others on this list aren't.
It's a second active more than a first move: real evidence, real results, just not as strong on its own as a retinoid or benzoyl peroxide. Good as a pairing, or as an alternative when those are off the table.
Ranked honestly against the other things people reach for. Same concern, different pathways.
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Take the quizSource: Acne vulgaris: management (NG198), Treatment of Acne Vulgaris During Pregnancy and Lactation: A Narrative Review · 0 affirmed claims