Step 3 of a 3-step system, The Mask is a microbiome friendly and benzoyl-peroxide free, super-soothing mask that works overnight to calm irritation, reduce redness and help skin strengthen its moisture barrier. It targets and combats the 5 major causes of imbalanced skin, reduces the number of blackheads and sebum levels, and helps to maintain and support the skin’s barrier against pollution. The Mask is a super soothing and hydrating mask that works overnight to calm the skin and helps the skin strengthen its moisture barrier.