Kyo-Dophilus One Per Day (formerly Acidophilus Go!) is a high potency supplement containing 3 billion live cells of the friendly bacteria: Lactobacillus acidophilus, Bifidobacterium bifidum, and Bifidobacterium longum One Per Day One Month Supply (30 capsules) Strains carefully selected and adapted to grow and work in the human digestive tract. No refrigeration required. Guaranteed stability at room temperature. Friendly bacteria may nutritionally assist in the body's normal response to yeast. Because friendly bacteria can be destroyed by improper diet, stress, traveling, antibiotics, various medications, and the aging process, this supplement can assure a generous amount of beneficial bacteria for a healthy intestinal tract. These bacteria may Enhance suppress harmful bacteria and the substances they produce along the entire intestinal tract.