Four Leaf Rover Saccharomyces Boulardii

Four Leaf Rover's Saccharomyces Boulardii is a single-organism powder sold in a 1.8 oz (49.5 g) jar, dosed by fractional teaspoon according to your dog's weight. The label names one strain, Saccharomyces boulardii, with no companion bacteria. The manufacturer's own product-facts label states 40 billion CFU and 1,000 mg of organic inulin per full teaspoon (3.4 g) -- a higher count than older third-party listings show, because Four Leaf Rover's own product photos confirm this is a relabeled, higher-potency version of the same jar. Store it in the fridge; the brand says a cool, dark spot works if fridge space is tight, but refrigeration is the primary instruction, not an alternative.

Label claims include helping maintain a healthy gut during antibiotic use, supporting a healthy gut lining, and having no fillers or dextrins, all the manufacturer's own wording. The label doesn't say whether the 40 billion CFU figure holds through the printed expiry or only at manufacture. We found no ASIN, so there's no confirmed Amazon listing for this exact product, and it shouldn't be confused with Four Leaf Rover's separate multi-strain product, Protect, which uses different organisms and is shelf-stable rather than refrigerated. Dosing runs in four weight brackets from 1 lb up to 91+ lbs, each a different fraction of a teaspoon, built around a single yeast strain rather than a broad bacterial blend.