Lactobacillus acidophilus, one of the most prominent types of resident bacteria in the intestinal tract, has been used as a probiotic for decades.* It is well established that the gut is one of the most important components of the immune system and that the development and function of normal immune system function is influenced by the composition of the intestinal microflora.* It has been shown that regular intake of probiotics can aid in maintaining a healthy intestinal flora.* The probiotic strain in this product has been identity-verified using DNA-fingerprinting technology. This product is formulated to deliver a potency of 2 billion CFU through the Best By date. Settling of powder may occur in the capsule, which is filled by weight not volume. Take 1 capsule 1 to 4 times daily between meals or on an empty stomach. Keep refrigerated to maintain potency.