Anti-Aging Bio-Cellulose Mask - Cleanse and dry face. Open the package and remove the translucent unwoven fabric to reveal bio-cellulose mask. Gently place the mask over the face and peel off the outer film. Leave it on for 20-30 minutes (or up to 1 hour depending on the skin condition). Remove the mask and gently pat the remaining formula for better absorption. Algae Fiber Sheet Mask - Wash face and apply toner. Open pouch and remove mesh film. Gently place over face starting from the nose. Leave on for 15-20 minutes. Remove the mask and allow excess essence to absorb into the skin.