
"Very quick delivery. Used 3 times, each order arrived the next day before 12:00. Product quality is exactly as described."
"Reliable & original products, with fast next day delivery. Have been using Welzo for over a year now."
"Welzo is great, lots of support from customer service who are easy to get a hold of and quick delivery."
Swanson Saccharomyces Boulardii - 30 vcaps
Swanson Saccharomyces boulardii is a probiotic supplement that supports gut health by balancing gut flora for everyday digestion ease and resilience during antibiotic use.
Purchase options
Subscribe & save
Save 5%Fast delivery · Cancel anytime
- Easy Pause or Cancel
- Best Price Guarantee
- 60-Day Returns
- Priority Support
One-time purchase
Standard price, no subscription
Quantity
100% Money back guarantee, no questions asked
Secure Transaction
Swanson Saccharomyces boulardii is a probiotic supplement that supports gut health by balancing gut flora for everyday digestion ease and resilience during antibiotic use. Active ingredients Saccharomyces boulardii and MOS team up to help gut balance. Swanson Health Products is a reliable name in quality supplements today. This blend is built for daily use and easy integration into routines.
Available Sizes & Variants:
30 vegetarian capsules – acid resistant capsule shields the probiotic as it passes through stomach acid.
Benefits & Features:
- Helps gut health by balancing gut flora.
- saccharomyces boulardii endures stomach acid.
- MOS prebiotic helps friendly bacteria flourish, boosting the probiotic effect by feeding beneficial microbes and supporting a more balanced gut environment for everyday comfort and resilience.
- Acid resistant capsules shield the probiotic as it travels through the stomach.
- Daily use helps ongoing gut health, especially during antibiotic courses.
Swanson Saccharomyces boulardii pairs a well studied probiotic strain with MOS prebiotic to support gut health. The probiotic helps restore the gut's natural balance, and MOS prebiotic nourishes friendly bacteria to boost the probiotics balance and a steadier digestive routine. Swanson Health Products has built a reputation for affordable, quality supplements, and the acid resistant capsule design helps more live cultures reach the gut where they matter.
United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).
Free shipping on orders over £50 to the UK.
Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.
Welzo is a UK-based health platform. Orders ship from the UK.
Please consult the product packaging for accurate instructions on how to use the product.
| Amount Per Serving | %RI* | |
|---|---|---|
| Saccharomyces boulardii (5 billion CFU†, a subspecies of S. cerevisiae) | 250 mg | |
| MOS (Manno-oligosaccharides) | 80 mg |
*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
The Active Ingredient Is: Saccharomyces boulardii (probiotic)
Saccharomyces boulardii is a probiotic yeast that helps keep the gut microbiota in balance. This version is acid-tolerant and packed in a vegetarian capsule, while MOS acts as a prebiotic to boost probiotic activity.
What Does Saccharomyces boulardii Do?
Saccharomyces boulardii helps reestablish and keep the gut microbiota in natural balance, creates compounds that neutralise toxins, and tunes immune responses in the gut. MOS provides a prebiotic setting that helps the growth of good gut bacteria, boosting probiotic impact. Dr. Szajewska from the University of Warsaw noted that Saccharomyces boulardii helps gut balance.
*This product is not intended to diagnose, treat, cure, or prevent any disease.
Swanson is our pick of brands for this probiotic, because of a clear focus on delivering dependable gut-supporting formulations. The Swanson Saccharomyces boulardii product blends a strong probiotic with MOS prebiotic to help balance the gut, and the capsule is built to be acid resistant and shelf stable for everyday use. This shows a down-to-earth approach to product design that lines up with Welzo's standards for consistency and user experience.
Our medical team reviews brands like Swanson for their overall quality commitment and manufacturing philosophy, and we lean on our medical team to ensure alignment with patient safety and efficacy expectations. We also require solid quality checks, which is why this partnership is backed by our really rigorous testing protocols to help ensure product integrity across its lifecycle.
This brand really stands out for offering a focused probiotic approach within a clearly defined product format, making Swanson the right partner for delivering a reliable Saccharomyces boulardii supplement to our customers.
Part of the Welzo System™
Test, supplement, enhance, and move, all in one place.
Frequently Asked Questions
Everything you need to know about this product.



