This is the mask to reach for if you’re battling serious cystic acne or deep, under-the-surface pimples. It contains tea-tree oil (an antibacterial and antifungal), willow bark (an exfoliator), plus chamomile and asiatica pennywort (both of which reduce redness). It’s beloved by Viera-Newton to calm her breakouts and R.O. Kwon, author of The Incendiaries, who describes it as having skin-nourishing magic. “It calms down my skin when nothing else will help,” Kwon says.