This health food product contains approximately 580 billion of the currently popular Fecalibacterium (EF-621K) bacteria per packet. Regular price: ¥24,840 (tax included). The media and experts are reporting that it is important to boost immunity. Intestinal environment = immunity. Type: Supplement Ingredients/Composition: Lactic acid bacteria Form: Powder [Please note] The contents are fine, but there may be some crushed boxes when shipping. *Because it is cheaper than the regular price.