This is an immune-activating lactic acid bacteria developed at the University of Tokyo's Faculty of Medicine. - Product Name: 11-1 - Contents: 30g (2g per bag) x 34 bags - Calories: 7.44 kcal - - Expiration Date: February 4, 2027 Thank you for looking. The box has been opened, but there are 4 extra bags. Please consider purchasing.