SaccB Support is a special freeze-dried strain of non-GMO Saccharomyces boulardii isolated from Litchi fruits. Unlike other products containing this organism, ProbioticPro is dairy and lactose free and does not require refrigeration. Benefits of this source may include broader bioactivity and increased protection of the digestive mucosa. Also, it is this strain that has been most studied for its efficiency in the prevention of antibiotic-associated diarrheas, and as a general supplement for optimum gastrointestinal health.* Made with non-GMO ingredients. Directions: Two capsules per day.