This is our strongest probiotic. It is designed specifically to survive digestion so that it makes its way into your intestines to help promote healthy gut bacteria. We need diverse and healthy bacteria in our gut to help strengthen our immune system to fight off many different ailments. Think of it as a militant operation. If you were planning to attack or defend from an enemy you would want to attack or defend them in every way that you could such as air, land and sea because that leaves little room for the enemy to get away or get in. Similarly, this probiotic serves as a "supply drop" for your gut by making sure your body has enough versatility in its arsenal to defend and attack any intruders.