Sacro-B Saccharomyces boulardii gives steady digestive support by helping keep gut balance healthy, and Thorne Research's trusted heritage keeps up the quality, science-backed probiotic relief you can count on. Trusted by health-conscious shoppers. For gut health supplements, this probiotic uses a hardy yeast that survives stomach acid and reaches the gut and support microbiome balance.

Available Sizes & Variants:

60 veggie caps - convenient daily digestive support for travel and everyday use.

Benefits & Features:

• Supports everyday digestive comfort with probiotics.
• Saccharomyces boulardii survives stomach acid to reach the gut and function.
• It uses several mechanisms to support gut health, including competing with harmful bacteria for nutrients, producing antimicrobial substances, and helping neutralise toxins for a calmer digestive tract.
• Great for travel or antibiotic use when everyday probiotic support matters.
• Vegetarian capsules make it easy to fit into a daily routine.

Thorne Research has built a reputation on practical science-driven supplements, and Sacro-B keeps that tradition. Saccharomyces boulardii is a hardy yeast that survives stomach acid and doesn't require refrigeration, making it travel friendly. The vegetarian capsules fit naturally into daily routines, helping you maintain a calmer gut and balanced microbiome. This multi condition digestive support aligns with what many customers look for in gut health supplements, delivering ease, reliability and long term wellbeing. Quite handy for on the go.

Saccharomyces boulardii

• GTIN: 693749757030
• Manufacturer: Thorne
• Categories: New ArrivalsPopular Supplement BrandsSaccharomyces BoulardiiThorne Supplements
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the 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 30 days in the same original and unopened packaging. Subject to T&C's.

Consume 1 capsule at any time, up to three times a day, without meals or following the advice of your healthcare provider. Take 1 tablet daily.

Please consult the product packaging for accurate instructions on how to use the product.

1. Sacro-B is a dietary supplement that contains Saccharomyces Boulardii, a probiotic yeast strain known for its ability to promote a healthy balance of bacteria in the gut.
2. This product may help improve digestion and support the immune system, as well as alleviate symptoms of diarrhea and other digestive issues.

The Active Ingredient Is: Saccharomyces boulardii

Saccharomyces boulardii is a probiotic yeast that supports gut health and stays viable through the digestive tract. This hardy strain is used to promote gut balance and is suitable for vegetarian capsule forms.

This form is used for gut support and is built to survive stomach acid and reach the gut where it can exert its effects. It acts as a probiotic organism in this formulation.

What Does Saccharomyces boulardii Do?

Saccharomyces boulardii participates in processes that help support gut microbial balance and immune function within normal limits. It is involved in multiple mechanisms that contribute to digestive system balance as described in relevant nutrition literature.

In addition, it may interact with the gut environment to help maintain barrier function and microbial balance, aligning with commonly recognised probiotic effects for supporting intestine health and immune activity.

This product is not intended to diagnose, treat, cure, or prevent any disease.

We chose Thorne Research as our supply partner for Sacro-B because this brand brings a trusted heritage and a science‑led approach to probiotics. Thorne Research is recognised in the sector for its trusted heritage in quality, science‑based probiotic solutions, offering a long‑standing commitment to evidence‑led products that healthcare professionals rely on. This brand stands out in our assessment for its focus on durable, gut‑friendly formulations and a reputation for consistency across its probiotic range.

When it comes to brand credibility and quality, Thorne Research is known for its high standards in formulation science and continuous emphasis on reliability and purity. Our team assessed the brand through Welzo’s vetting process, combining clinical relevance with manufacturing philosophy to ensure suitability for the UK market. You can learn more about how we verify ingredient quality via how we verify ingredient quality, and explore Welzo's medical team at Welzo's healthcare professionals for independent assessment.

The product alignment with Sacro‑B is a natural fit for this brand, aligning Thorne Research’s probiotic expertise with our commitment to quality and patient safety, reinforcing why this brand was chosen over alternatives and how our partnership supports transparent, evidence‑based supplementation.