Without compromising your barrier, this formula tackles breakout-prone skin, large pores and uneven tone with a high dose of BHA to refine skin’s surface and unclog deep buildup. Glycerin, adenosine and antioxidants hydrate and help soften fine lines while the optimal pH supports visible results. | Paula's Choice Skin Perfecting 4% BHA Advanced Exfoliating Serum Toner, 30 ml | Dermstore