£5.66 £21.66
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Product rated 4.7 in 67 reviews

Saccharomyces boulardii is a unique yeast and microorganism. This strain from OptiBac is scientifically proven to reach the gut alive.


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No Dairy No Dairy
No Gluten No Gluten
Vegan Vegan

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What's it for?

An extensively researched microorganism, proven to reach the gut alive.

Who's it for?

For anyone, 1 year and over, seeking a pure Saccharomyces boulardii supplement.

Each capsule:

Provides 5 billion live cultures of pure, shelf stable Saccharomyces boulardii.

OptiBac Saccharomyces boulardii

Saccharomyces boulardii is a natural and safe microorganism with vast scientific research and documentation.

This strain has been internationally acclaimed as a well-researched and unique microorganism, and has been safely used for the last 50 years. Saccharomyces boulardii is a natural food supplement, and not a medicine.

Saccharomyces boulardii is a unique microorganism which is sold widely in the US, Scandinavia, Germany & France. This friendly yeast is more robust to environmental stressors than more common bacterial live cultures, and shows strong resistance to heat, humidity and stomach acidity levels. These live cultures of S. boulardii have been tested and shown to be especially stable and resistant.

Healthcare professionals can read scientific research on S. boulardii on the Probiotics Database or our FAQ, 'What is Saccharomyces boulardii?'.


Saccharomyces boulardii under the microscope

More about OptiBac

All we do is live cultures; looking at different species and strains in detail. We are partnered with some of the world's leading institutes of microbiology; so when you're stressed with too much on your mind, you can rest easy - confident that you're choosing the experts.


Directions

Saccharomyces boulardii can be given to adults and children (from 1 year and over) with the following recommendations, or as professionally directed.

  • Take one to four capsules depending on severity of symptoms and up to six capsules daily, or as professionally directed
  • If taking anti-fungals, take separately (at least 2 hours apart).
  • For infants and children the dose should be lowered

  • Drink plenty of water with your course of live cultures.

  • For anyone unable to swallow capsules, capsule can be opened and contents mixed with a cold meal or beverage.

    See also Can I take 2 OptiBac supplements at the same time?

Storage

Like the rest of the OptiBac range, Saccharomyces boulardii does not require refrigeration.

Store out of direct sunlight.

Safety

Live cultures are not recommended for those with serious medical conditions eg. those who are severely immunosuppressed, have pancreatitis, are in the ICU, have melaena, have a central venous catheter, infants with short bowel syndrome, or to patients with open wounds following major surgery; unless under a doctor's care. Furthermore, pregnant or breastfeeding women should consult their doctor before taking Saccharomyces boulardii or 'For travelling abroad'.

Nutritional Information

Frequently Asked Questions

Healthcare professionals can follow the links below to read FAQs.

You can find more of our frequently asked questions on our FAQ page.

 

Delivery Options

Currency 

As we are an UK-based company, the product prices on our website will always be shown in pounds sterling (GBP £). As currency exchange rates fluctuate on a daily basis, the conversion to local currency will be made by your bank on the day of purchase. Check out today's currency conversion rates using a search engine and an appropriate currency conversion tool, though do bear in mind that the rates displayed may be subject to change before your bank processes your transaction.


Next Day UK Delivery 

Order before 3pm from Monday – Friday and select option ‘next day delivery’ at the checkout for your order to arrive the next day.

Next Day: £6 - guaranteed next-working-day delivery to most of the UK* if you order by 3pm Monday to Friday (requires signature)

*excludes: Channel Islands, Herm Island, Isle of Man, Isle of Wight, Northern Irish postcodes BT18 & upwards, Sark, Scottish borders and offshore, and a small number of remote mainland destinations as determined by our delivery courier


UK Delivery 

UK delivery is free when you spend £100. The delivery discount is automatically applied at the checkout.

Once your parcel has been collected from our warehouse, we will send you a confirmation email to let you know that the parcel has been dispatched. For any further delivery queries, please call us on 01264 363 193 or email [email protected].

Orders placed before 3pm will be dispatched on the same working day.
Orders placed after this time will be dispatched the following working day.

Standard: £1.75 - please allow 4-7 days for delivery
First Class: £2.50 - please allow 1-3 days for delivery

Delivery within the United Kingdom and Northern Ireland has a fixed price, regardless of the size and weight of your order. Delivery times are estimates and not guaranteed unless otherwise stated.


International 

We deliver to more than 50 countries and offer free delivery on orders over £100. The delivery discount is automatically applied at the checkout. Please see International Delivery Coverage below to find out if we deliver to your country.

Most international delivery prices are dependent on the size and weight of your order and where it is being sent. You'll be shown the final price of shipping in the checkout, before payment, once we have your address and order details. The main exception to this is delivery to EU countries using our International Express Courier service. This has a fixed delivery cost for each country, regardless of the size of your order.

  • I wanted to thank you for your help. My grandmothers upset stomach issues have resolved immediately after taking your probiotics. I can't stress how much this helps her quality of life at 92.
    She will be taking OptiBac on a permanent basis.

    London
  • Saccharomyces boulardii has made a huge difference to me. Following a hospital stay for diverticulitis and many courses of antibiotics, I was still having a lot of stomach pain and having several bowel movements during each morning. I took SB (five a day) for the first pot of 80. By the end of this pot, my bowel movements were normal and stomach pain almost gone.

    I now take 2 a day and rarely have any symptoms.

    Doreen

    Stroud
  • This product has made such a difference to my IBS symptoms. I ran out recently and was unable to get more for a whole week. All the old symptoms came back. All the proof I needed that they were an ... Read more

    Cumbria
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