The gastrointestinal tract contains about 300 different bacteria fight for territory and nutrition. If there is an over-abundance of harmful organisms, negative side effects can occur.Imbalance of the natural flora can be due to eating too many processed foods or taking antibiotics. Pure Probiotic is a unique formula that will deliver active organisms to promote healthy gut flora, boost immunity and protect intestinal integrity. Every capsule contains probiotic strains that can endure the harsh gastrointestinal environment. Thanks to BioShield Technology, the probiotic organisms will be preserved and released in accurate amounts inside the intestines for optimal benefit.