I was really ill with C.diff after taking strong antibiotics , off work 8weeks took this product ,with in 2 days I was feeling better and back at work,magic really recomend this product also helps with my IBS
Subscribe & Save
Choose your favourite friendly bacteria supplement(s) and tell us how often you want us to deliver. We'll take care of the rest.
You're away from FREE US delivery Free US delivery (applied at checkout) on orders over $60.00
You have qualified for Free US delivery
80 capsules |up to 80 days' supply
Recommended often, Saccharomyces boulardii is a friendly yeast and has been used safely around the world for over 50 years.
This highly researched supplement from Optibac Probiotics provides 5 billion CFU of pure Saccharomyces boulardii, clinically trialled and shown to support gut health especially in those with occasional diarrhea.
Pack size
To compare our supplements for daily use scroll down
For those with occasional diarrhea*.
Customer reviews have been collected on our website or independently through Trustpilot where no moderation is possible. Reviews are not endorsed by us and should not be regarded as medical or health advice. The top 3 reviews have been hand selected as our recent favourites, please click 'View all product reviews' below to explore more reasons why customers love this product.
I was really ill with C.diff after taking strong antibiotics , off work 8weeks took this product ,with in 2 days I was feeling better and back at work,magic really recomend this product also helps with my IBS
I use this with my children when Winter arrives and they go through reoccurring infections. My 8 year old swallows the capsules and my 5 year has his mixed in with either matcha tea or yoghurt. It really helps them to recover from any bugs more quickly.
I’m celiac and use this product every day. I have a very sensitive stomach and these help so much. I’m so glad I found this product. 100% recommend.
Natural dietary supplement suitable for adults and children (from 1 year onwards) with the following recommendations:
Probiotics are not recommended for those with serious medical conditions e.g. those who are severely immunosuppressed, have pancreatitis, are in the ICU, have melaena, have a central venous catheter, short bowel syndrome, or patients with open wounds following major surgery; unless under a doctor's care. Keep out of reach of children.
Gut health supplements are not intended to prevent, treat or diagnose any medical conditions. If taking probiotic supplements for gut health, note that these should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. If you are taking any medications or have a serious medical condition, consult a doctor before use. Optibac supplements will not cause dependency and may be used on an ongoing basis.
Pregnant or breastfeeding women should consult their doctor before taking Saccharomyces boulardii
Probiotic cultures: Saccharomyces boulardii (275mg); hydroxypropyl methylcellulose
Each capsule guarantees 5 billion CFU.
Format | Capsule |
CFU | 5 billion |
Recommended Use | 1 capsule daily |
Age Range | Adult |
International postal order - typically deatched and delivered within 5-10 working days.
Free standard shipping on orders over $60.
We use DHL and orders are typically dispatched and delivered within 2-5 working days.
For more details regarding international orders, currency conversion and applicable tax for orders outside the USA, please take a look at our delivery FAQ.
If you have changed your mind, you can return goods, at your cost, unopened within 14 days for refund or exchange, this does not affect your statutory rights.
All questions answered by probiotic experts Dr Kate Steed PhD (Food and Microbial Sciences) BSc(Hons) Medical Biology and Helen Morton BSc (Hons) DipION Nutritional Therapist
Yes, Saccharomyces boulardii is one of the most highly researched probiotics in the world! But it’s actually a friendly yeast, not a type of bacteria. This internationally acclaimed probiotic has been used safely1,2 for over 50 years worldwide but it was Optibac that first introduced Saccharomyces boulardii to the UK market. It is used to support occasional diarrhoea3 and overall gut health*4,5.
Reference
1. Czerucka D, Piche T, Rampal P. Review: yeast as probiotics: Saccharomyces boulardii. Alimentary Pharmacology & Therapeutics. 2007 Sep;26(6):767-778. DOI: 10.1111/j.1365-2036.2007.03442.x.
2. McFarland L.V., (2010), ‘Systematic review and meta-analysis of Saccharomyces boulardii in adult patients’.World Journal of Gastroenterology, 16(18):2202–2222.
3.Das S et al. (2016) Efficacy and Safety of Saccharomyces boulardii in Acute Rotavirus Diarrhea: Double Blind Randomized Controlled Trial from a Developing Country. J Trop Pediatr. Dec;62(6):464-470
4. Kelesidis T, Pothoulakis C.(2012) ‘Efficacy and safety of the probiotic Saccharomyces boulardii for the prevention and therapy of gastrointestinal disorders’ Therapeutic Advances in Gastroenterology. 2012;5(2):111-1255.
5. Qamar et al., (2001)‘Saccharomyces boulardii Stimulates Intestinal Immunoglobulin A Immune Response to Clostridium difficile Toxin A in Mice’. Infect. Immun., 69(4):2762–2765.
S. boulardii has a broad range of potential benefits. It has been extensively researched and used worldwide for occasional diarrhoea. It has also been shown to promote a healthy gut environment, which encourages the growth of other good bacteria and discourages the growth of undesirable micro-organisms.
Each gut microbiome is unique, so the response to Saccharomyces boulardii will vary. Optibac Probiotics S. Boulardii supplement contains 5 billion live cultures per capsule. Try 1-2 capsules initially (or 3-4 capsules together if a stronger dose is required) and increase up to a maximum of 6 capsules (30 billion live cultures) spread over the day. Within these guidelines, then take as much or as little as you need, on an ad hoc or ongoing basis to support gut health and occasional diarrhoea1,2.*
Reference
1. Das S et al. (2016) Efficacy and Safety of Saccharomyces boulardii in Acute Rotavirus Diarrhea: Double Blind Randomized Controlled Trial from a Developing Country J Trop Pediatr. Dec;62(6):464-470
2. Zengbin L et al., (2021) Which Probiotic Is the Most Effective for Treating Acute Diarrhea in Children? A Bayesian Network Meta-Analysis of Randomized Controlled Trials. Nutrients, 13: 4319.
It’s easy to take S. boulardii probiotic supplements – they can be taken at any time of day, with or without food! This friendly yeast is more robust than bacteria, and can resist high heat, humidity, and stomach acid levels1. So it doesn’t need refrigeration, so you can take it with you, wherever you go.
Reference
1. Hossain M et al., (2020) Identification and Growth Characterization of a Novel Strain of Saccharomyces boulardii Isolated From Soya Paste. Frontiers in Nutrition, 2020; 7: 27.
Yes! In fact, it’s highly recommended. S. boulardii probiotic yeasts do not colonize for long in the gut but they harmonise well with good bacteria. They displace bad bacteria and unfriendly yeasts1 and create a healthy gut environment in which good bacteria can flourish2.For this reason, most people take them in combination.
Reference
1. Murzyn et al., (2010), ‘Capric Acid Secreted by S. boulardii Inhibits C. Albicans’. Plos One, 5(8):
2. Qamar et al., (2001), ‘Saccharomyces boulardii Stimulates Intestinal Immunoglobulin A Immune Response to Clostridium difficile Toxin A in Mice’. Infect. Immun., 69(4):2762–2765.
As a probiotic yeast, Saccharomyces boulardii is hardier than most good bacteria. It survives well in very hot or humid conditions1, doesn’t require refrigeration and can be taken with or without food. It’s the perfect ‘friend’ to take on your worldwide travels!
Reference
1. Hossain M et al., (2020) Identification and Growth Characterization of a Novel Strain of Saccharomyces boulardii Isolated From Soya Paste. Frontiers in Nutrition, 2020; 7: 27.
As it’s very good at slowing down stool transit time, at higher doses S. boulardii may cause mild constipation in certain individuals. If you tend to suffer with slow regularity,peak to your doctor or health professional for advice.
Saccharomyces Boulardii (80 capsules) | Bifido & Fibre (30 sachets) | Every Day (90 capsules) | One Week Flat (28 sachets) | |
---|---|---|---|---|
Suitability | Specific Digestive | Regularity | General Digestive | Gas or Bloating |
Format | capsules | sachets | capsules | sachets |
Dosage | 1-6 daily | 1-4 daily | 1 daily | 1 daily |
Vegan | ||||
With FOS/Prebiotic | ||||
RRP | $36.49 | $26.49 | $39.99 | $34.99 |