TravelBiotic BB536 is a high-potency probiotic, with 10 billion (colony forming units) ofBifidobacterium longum BB536 per capsule. BB536 is among the most researched and effectiveprobiotics in the world. As TravelBiotic does not require refrigeration, it is ideal for supportingdigestive health while travelling, taking antibiotics, or to replenish healthy gut flora daily.Guaranteed minimum 10 billion active cells per capsule at expiry date.Guaranteed minimum 12 billion active cells per capsule at manufacture date.