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#3 in Probiotics Third-Party Tested

Jarrow Formulas Saccharomyces Boulardii + MOS (90 Capsules)

by Jarrow Formulas

"5 billion CFU S. boulardii + MOS in a 90-count value size — the antibiotic-resistant probiotic yeast with 18,000+ reviews"

Amazon Rating
4.6/5
Reviews
18,000+
Price Range
$22-28
Servings
90 capsules
GMP CertifiedNon-GMO
Our Editorial Rating
8.4
Very Good
FormCapsule
CategoryProbiotics
SubcategoryProbiotic Yeast (Travel & Antibiotic Support, Value)
View on Amazon

Overview

Jarrow Formulas S. boulardii + MOS (90ct) provides 5 billion CFU of Saccharomyces boulardii per capsule with mannan-oligosaccharides (MOS) from yeast cell wall. S. boulardii is a probiotic yeast — not a bacteria — which means it is naturally resistant to all antibiotics and can be taken alongside antibiotic therapy without being killed. MOS acts as a prebiotic decoy that binds to pathogenic bacteria (E. coli, Salmonella) and prevents them from adhering to the intestinal wall. This 90-capsule value size provides a 3-month supply. The product is shelf-stable and does not require refrigeration.

Key Ingredients

IngredientAmount
S. boulardii5 billion CFU
MOS (Mannan-oligosaccharides)Included

Pros & Cons

What We Like

  • 18,000+ reviews
  • Antibiotic-resistant
  • 90 capsules (3-month supply)
  • Shelf-stable
  • MOS prebiotic included

What Could Be Better

  • Single strain only
  • 5B CFU (moderate count)
  • Not for immunocompromised
  • Yeast-based (avoid if yeast allergy)

Who Is This For?

Best For

  • Antibiotic support
  • Travel diarrhea prevention
  • C. difficile prevention
  • Those wanting shelf-stable probiotic

Not Ideal For

  • Those wanting multi-strain probiotic
  • Immunocompromised patients
  • Yeast allergy
  • Those wanting high CFU count

Our Verdict

8.4/10 — Very Good

Jarrow S. boulardii + MOS 90ct is the antibiotic companion — the only probiotic type that survives antibiotic therapy. The 90-capsule value size provides 3 months of gut protection.

Alternatives to Consider

No direct alternatives listed for this product yet.