Gross weight: 15 g. Heating eye mask gently cares for the area under the eyes, as if you are doing a SPA procedure for the eyes at home. The mask gives relaxing warmth, nourishes and brightens the skin, restoring its radiance. Has a relaxing sakura aroma that will calm your mind and help you fall asleep if you use the mask at night. Ingredients : IRON HYDROXIDE OXIDE, CHARCOAL POWDER, VERMICULITE EXTRACT, WATER, MINERAL SALTS, FRAGRANCE, PRUNUS LANNESIANA FLOWER EXTRACT, ADENOSINE, CAFFEINE, NIACINAMIDE. Directions for use: tear open the package, place the mask over the eyes and fix the loops behind each ear. The eye mask will begin to heat up and eventually reach a temperature of 40 degrees Celsius. Leave it on for about 10-15 minutes before removing.