Timeless Harmony's aromatic mask sticker made in Japan. I wear a mask every day, I wear it all day, but is it okay in terms of hygiene? If you wear it after a meal or for a long time, you will gradually become concerned about the smell of the mask and bad breath. Each sticker produced in a factory in Japan is always clean. Medical seals used in hospitals and other facilities that do not easily become rough when they come into contact with the skin contain 100% natural essential oils that do not contain any artificial substances. A faint scent of lemongrass. Since it is a plain type, it does not stand out too much.