New, unopened! The photos show 4 bags, but this is a listing for 5 bags! Expiration dates: October 2026: 4 bags April 2027: 1 bag This product contains Plasma Lactic Acid Bacteria (L. lactis strain Plasma). Plasma lactic acid bacteria are reported to act on pDC (plasmacytoid dendritic cells) and help maintain the immune function of healthy people. [Recommended for:] Those who want to easily start taking health measures, those who want to maintain their immune function in the future, and those who want to take lactic acid bacteria for health management. [How to consume:] Take 4 tablets a day as a guide, with water or other beverages.