Allies of Skin Azelaic and Kojic Advanced Clarifying Serum 30ml

Oof expensive but this stuff is some kind of magic. I usually get all kinds of breakouts in the summer from pollution/ sweat/ sunscreen/ etc, and using this every at night has been keeping my skin clear. Dare I say improved? Dermstore and the Allies website both have sales on this pretty frequently, so wait for the good 20% off ones to make it a little less nuts.