Sunday RileySunday Riley Saturn Sulfur Acne Treatment Mask

BUY at Birchbox

When you think of blemish-fighting ingredients, sulfur is probably not the first one that comes to mind. But the under-the-radar zit zapper is actually this mask's secret weapon. Boasting a potent 10% dose of the mineral, it not only heals breakouts and prevents them from forming thanks to its antibacterial properties, but it does so without drying out your skin (no flaking). It's effective at treating multiple types of acne including clogged pores, inflamed acne, hormonal acne, and acne rosacea