Biore 1 Minute Deep Cleansing Facial Contents: 8 Single use Masks * Dermatologically Tested * Hypo-allergenic. * Non-pore Clogging. Directions Wet Face. Leave face wet as the Biore self-heating mask is activated by water. Dry hands, open packet and apply mask to face. Massage. for about one minute. As you massage the mask, it will begin turning blue to show you its working. Once the mask reaches a uniform blue colour, thoroughly rinse with water. Recommended Usage: Twice per week