Lynside® S. boulardii
Saccharomyces cerevisiae var. boulardii (S.boulardii) is the most documented probiotic yeast available. Doctors and gastroenterologists know its high efficacy and prescribe it for decades to reduce occasional diarrhea and restore gastrointestinal flora.
S.boulardii is also used today worldwide to manage various types of occasional digestive discomfort, such as antibiotic-associated, traveler’s, acute, and viral diarrhea.
This probiotic yeast is currently marketed under the names Biootic® and Lynside® S. boulardii.
Market Segments
- Digestion & Gut
- Wellness & Immune
Health Benefits
- Microbiome Balance
- Diarrhea Management
- Immunity
Allergens and Certificates
- Gluten-free
- Halal
- Kosher
- Lactose-free
- Non GMO Verified Project
Lynside® Pro SCB: Enjoy The Benefits of Greater Stability
Lynside® PRO SCB is a Saccharomyces cerevisiae var. boulardii, a proprietary strain of Lesaffre registered as CNCM I-3799. Lynside® PRO SCB is used by the dietary supplement industry worldwide for its gut and immune health benefits.
S. boulardii is the most documented probiotic yeast with more than 50 years of clinical research and is known to prevent dysbiosis, restore microbiota and help to support immune health. Gnosis by Lesaffre’s strain of S.boulardii does not require refrigeration, with up to 5 years of stability at room temperature.
A Trusted Probiotic, Globally Recognized
With more than 70 clinical studies reporting its beneficial effects on health, S. boulardii is recommended by doctors to reduce diarrhea of children and adults, over 65 years and in more than 100 countries.

Food & Pharma Grades: High Quality
Because of our 100% in-house processes from fermentation to grinding in approved pharmaceutical plants, Gnosis by Lesaffre offers the guarantee of a high-quality standard probiotic in compliance with GMP requirements.

The Power of Yeast-based Probiotics
Probiotic yeast and bacteria have been successfully used for years to balance the microbiome and support digestive health. S.boulardii is a yeast-based probiotic with benefits from unique properties:
• Resistance to gastric acid and bile salts
• Better survivability at 37° C
• Shelf stable and does not need any refrigeration
• Not affected by antibiotics

A Unique Expertise in Yeast Production
Thanks to the Lesaffre Group’s 170 years expertise in yeast fermentation and production, our S. boulardii is obtained through fine-tuned production and drying processes. Thus, we can offer a powerful probiotic with the following benefits:
• A long shelf life (up to 5 years)
• A superior stability in various packaging formats

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The beneficial effect of our patented strain S.boulardii CNCM I-3799 on the recovery from acute diarrhea in children
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