Saccharomyces boulardii powder probiotic gives steady digestive health and immune support, supported by Klaire Labs' quality standards for everyday resilience. The key active ingredient Saccharomyces boulardii is a non pathogenic yeast studied for digestive and immune support. Klaire Labs' powder is lactose free, gluten free and hypoallergenic, with rigorous GMP manufacturing and routine potency checks.

Available Sizes & Variants:

127g powder – convenient daily probiotic for ongoing digestive support

Benefits & Features:

• Lactose-free, gluten-free and hypoallergenic; this formula suits sensitive users.
• 3 to 5 billion CFU per serving aligns with lower to mid clinical ranges, helping support ongoing gut health and resilience when taken as part of a daily routine.
• Powder format fits into daily routines, making it easy to mix into drinks or smoothies for seamless use.
• GMP certified manufacturing and allergen free labelling provide confidence in safety and consistency across batches.
• Designed to be taken with meals or after antibiotic use, it helps maintain digestive comfort and supports gut immune function, even when your schedule is hectic.

With Klaire Labs, you're choosing a brand known for stringent quality. Saccharomyces boulardii, a non pathogenic yeast, is produced in GMP certified facilities and kept lactose free and gluten free. The powder delivers 3 to 5 billion CFU per serving, aligning with clinical ranges. Klaire Labs' hypoallergenic formula and clear labelling reflect a long standing commitment to safe, reliable digestive health supplements, as part of many probiotics lines.

Saccharomyces boulardii

• GTIN: 828054745131
• Manufacturer: Klaire Labs
• Categories: Best SellersKlaire LabsNew ArrivalsPopular Supplement BrandsSaccharomyces Boulardii SupplementsSubscribe & Save Products
• 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.

You can take one scoop of the supplement up to five times a day, either with water, juice, or food. Alternatively, you may follow the instructions of a healthcare professional. Take 4 capsules daily\, preferably on an empty stomach or as directed

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

1. Supports Digestive Health: Saccharomyces boulardii is a beneficial probiotic that helps maintain a healthy balance of bacteria in the gut, promoting proper digestion and absorption of nutrients.
2. Boosts Immune System: By enhancing the production of antibodies, Saccharomyces boulardii can help strengthen the body's immune system and protect against infections.

The Active Ingredient Is: Saccharomyces boulardii

Saccharomyces boulardii is a friendly, non-pathogenic yeast used as a probiotic to support digestive function and immune balance. The powder form provides the active probiotic ingredient for everyday use within hypoallergenic, lactose-free and gluten-free preparations.

This form is supplied as a probiotic yeast focused on gut and immune health, usually produced under GMP standards with a vegetarian capsule matrix; the powder version fits this single-ingredient profile.

What Saccharomyces boulardii Does?

Dr. McFarland from the University of Calgary found that Saccharomyces boulardii supports normal gut function and gut-immune balance, contributing to mucosal defence and barrier integrity as part of EFSA-aligned understanding of probiotic roles.

This probiotic yeast helps reduce the incidence of antibiotic-associated and traveller’s diarrhoea in clinical contexts, and it has been studied for its role in supporting digestive comfort and normal bowel transit within gut health research.

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

Klaire Labs is selected for its strict manufacturing standards and long-standing commitment to quality. The brand runs GMP‑certified facilities and adheres to FDA dietary supplement regulations, backed by systematic batch testing for potency and purity. This reliability shows in Klaire Labs’ hypoallergenic, lactose‑free and gluten‑free formulations, which align with Welzo’s focus on safety and suitability for diverse needs.

This brand stands out for product-level practices that prioritise clean, well-characterised ingredients and steady quality control, making it a natural fit for a probiotic like Saccharomyces boulardii powder. Klaire Labs’ approach to manufacturing backs the specific single-ingredient profile of this supplement, ensuring the active organism is delivered in a controlled format.

Welzo selected Klaire Labs through our standard vetting process, informed by Welzo's healthcare professionals and guided by our supplement quality standards, giving customers confidence in both brand integrity and product safety.