Y Theorem Bio Cellulose Facial Mask: Designed to soothe, support and strengthen stressed skin, our reformulated mask is infused with complexes inspired from wound-healing processes. Repair & Rejuvenate: The superior bio-cellulose body, initially used to treat burn victims, acts as a second skin that encourages superior penetration of ingredients. Reformulated to include NAC Y². How to Use: After cleansing and toning your skin, remove the mask from the protective film on both sides and leave on your face for 20 minutes. NAC Y²: A complex that includes a trio of actives with superior antioxidant capabilities, one of which stimulates the production of Glutathione – the body’s most powerful intracellular antioxidant. 111SKIN: Skincare formulated to deliver a no filter confidence. 111SKIN is the leading global skincare brand that is surgically inspired, science led and drives clinical results. The Y Theorem Bio Cellulose Facial Mask is designed to soothe, support and strengthen stressed skin. Our reformulated mask is infused with complexes that are inspired from wound-healing processes. 111SKIN is the leading global skincare brand that is surgically inspired, science led and drives clinical results.