SB FlorActiv contains Saccharomyces boulardii (SB), a subspecies of S. cerevisiae, is a non-pathogenic biotherapeutic probiotic agent that supports the establishment of friendly bacteria in the gastrointestinal tract. It helps inhibit the proliferation of unhealthy micro-organisms, while supporting the health of the intestinal environment and strengthening the structure of the epithelial cells in the gut mucosa. SB FlorActiv is one of the only probiotic natural medications not requiring refrigeration, so travelling with the product is no problem. BioCeuticals SB FlorActiv may help maintain normal healthy flora during antibiotic use. The product can also be taken in conjunction with other probiotics.