Brand from Japan: Skin Operation. Skin Operation Mask 22 Collagen is a non-greasy milk mask with collagen. The mask gives skin elasticity and firmness.Unscented.How to use:After washing your face carefully, condition your skin with a lotion.Take the mask out of the bag, spread it out, align the eyes with the bag, then align the mouth, and then attach it to the entire face.Leave it for 5 to 15 minutes before removing the mask. When peeling off, hold the protrusion on the temple and peel it off slowly.Use the palm of your hand to apply the liquid remaining on your face.