PureDerm Self Heating Moisture Mask by Amirose. The Self Heating Moisture Mask is the revolutionary way to unclog your pores and to relieve stress. The Self Heating Moisture Facial Mask heats up instantly after being applied to face, cleansing your face and giving you an instant feeling of calm. The Self Heating Moisture Facial Mask deep cleanses, unclogs pores and moisturises the skin in just 60 seconds. Leaving your skin feeling clean, smooth, and refreshed, allowing you to show off your healthy looking skin to your friends. Each pack contains 3 masks.