regeneralive
Sacro-B (Saccharomyces boulardii)

Thorne

Sacro-B (Saccharomyces boulardii)

A non-colonizing probiotic yeast for diarrhea, traveler's gut, and antibiotic recovery

4.7 · Editorial review
Third-Party TestedNon-GMO
$32.00via Thorne

Approximate price. Subject to merchant changes.

Get it on Thorne

Affiliate link — Regeneralive may earn a commission. We only recommend products we'd give to family.

Reader discount

10% off any Thorne order

Use code at checkout — applied automatically when you click through our affiliate link.

Serving size
See product label for full directions
Goal
gut · immunity

The review

Why we put this on the shelf.

Saccharomyces boulardii is the most studied probiotic yeast — and unlike bacterial probiotics, it survives antibiotics and works alongside them to prevent C. difficile and antibiotic-associated diarrhea.

We carry Sacro-B (Saccharomyces boulardii) because Thorne sets a bar most consumer-facing supplement brands don't clear: NSF-certified manufacturing, in-house clinical research with Mayo Clinic and the Mayo Clinic Sports Medicine team, and individual batch testing for purity and potency.

Use the link on this page to get 10% off through our Thorne affiliate partnership. The code applies automatically when you click through — same Thorne, same shipping, just a small kickback to us at no cost to you.

Sacro-B (Saccharomyces boulardii) by Thorne · Regeneralive