This allows the Mask to contour and adhere to your face more securely, bringing even more of its Hydrating serum in contact with your skin. This, you’ll find, is a very good thing, because the serum we’ve selected for Biocellulose Face Mask is something special, the Mask comes soaked in blend of Hydrating hyaluronic acid and aloe, skin-brightening vitamin C and turmeric root extract, calming cocoa and camelia leaf extracts.