This is a high-end beauty serum mask from リアボーテ (Re Beau Beaute) purchased at an esthetic salon. ・Unopened ・Authentic product ・Exclusive to esthetic salons ・Contents: 15mL ・MADE IN JAPAN Purchased around July 2024. As it is unopened, I believe it is usable without any problems, but please purchase only if you understand that it has been stored at home. Instant purchase is OK.