A Saccharomyces boulardii yeast probiotic – 5 billion organisms per capsule:

Unlike most other probiotics, which are bacteria based, this is a Saccharomyces boulardii yeast probiotic.

Despite being a yeast, Saccharomyces boulardii is classified as a probiotic supplement because its beneficial organisms are able to survive stomach acid and colonise the intestinal tract. There, they may support digestive health and a strong immune system by supporting a healthy balance of gut microflora.