Oh K 3 Step Bamboo Charcoal Sheet Mask is a cleansing and nourishing 3-step face mask, for a perfectly cleaned and refreshed skin: 1- Cleansing Wash: Sulphate-free formula that helps to clean and prepare the skin for the moisturizing step. 2- Bamboo Charcoal Sheet Mask: draws all the skin impurities by the action of the charcoal and purifies the skin. 3- Moisturizing Serum: provides intense nourishment and brightens the skin.