Brand from Japan: Tabibijin. This sheet-type serum mask is made from 100% high-quality cotton and is packed with hot spring water from Okuizumo Yumura, which has highly effective skin-beautifying properties, and rich serum.Using it for 10-15 minutes once or twice a week will give you dramatically firmer, more radiant skin.For best results, use with the Bisuisen series (all-in-one gel, beauty soap).How to use:Wash your face and clean your skin.Remove the mask from the bag and slowly unfold it.Place the mask over your eyes and mouth, adjusting it to prevent air from getting in and gently press it into your face to ensure it fits snugly.Leave it on for 10 to 15 minutes, then slowly peel it off.Rub any serum remaining on your skin into the palms of your hands and spread it around your neck, etc.