Four Leaf Rover's Saccharomyces boulardii is a probiotic yeast that supports a healthy gut flora and lining. Because it's a yeast and not bacteria, S. boulardii is much more resistant to gut-stressing drugs and chemicals. 

Yeast-based probiotics are unique because they're not harmed by the drugs and chemicals that can damage other probiotics and bacteria. This makes Saccharomyces boulardii the perfect choice for dogs with guts stressed by gut-harming drugs and chemicals. 

This friendly yeast delivers other gut benefits too. It helps maintain a healthy gut lining and studies show S. boulardii can influence parts of the immune system that maintain proper gut permeability.

Recommended to maintain a healthy intestinal tract and proper gut flora.

Give Saccharomyces boulardii orally daily, or as directed by your veterinarian. 

Refrigerate after opening. 

Net Contents: 1.65oz (46.7 g)