Cleanse and dry the skin before applying the mask. Remove one section of 3D Hydro Gel Face Mask at a time, peeling off the protective film on each side. Place one section of the mask around your mouth, the other around your eyes, and smooth down. Leave on for about 10-15 minutes, then remove the mask. Gently massage in any residue before applying your moisturizer. Tip: Cool the sachet for ten minutes before the treatment in order to increase the cooling effect.