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.
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. OptiBac Probiotics was the first UK company to make a pure Saccharomyces boulardii supplement. 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.
In terms of cost per billion microorganisms, our Saccharomyces boulardii supplement is the best value supplement containing S. boulardii currently available in the UK.
Saccharomyces boulardii can also be found in our supplement For travelling abroad (which contains 1 billion micro organisms per capsule, combined with other live cultures).
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.
Please note that as of mid October 2017 a new batch of Saccharomyces boulardii is being dispatched. This new batch contains fewer non-active ingredients, and no longer contains added ingredients such as titanium dioxide. This means the capsule size is now smaller than before – so repeat customers should note that their packaging may appear less full.
Customers should also note that due to the lack of titanium dioxide, the capsules now appear clear whereas they originally appeared white; meaning you will now be able to see the ingredients – S. boulardii naturally has a slightly beige colour (unlike other live cultures) and the appearance may vary slightly from capsule to capsule.
Each capsule still contains 5 billion live cultures of Saccharomyces boulardii guaranteed.
NB: Since November 2013, this product has changed name to Saccharomyces boulardii within the EU.
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.
Like the rest of the OptiBac range, Saccharomyces boulardii does not require refrigeration.
Store out of direct sunlight.
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'.
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.
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.
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 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.
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.
International Standard: From £9.54 - Please allow 3-7 days for delivery within Europe and 5-12 days to all other destinations. Does not include order tracking.
International Signed: From £10.44 - please allow 3-7 days for delivery within Europe and 5-12 days to all other destinations. Includes delivery confirmation. Requires signature upon delivery.
International Tracked & Signed: From £10.44 - please allow 3-7 days for delivery within Europe and 5-12 days to all other destinations. Includes full tracking and delivery confirmation. Requires signature upon delivery.
International Express Courier: From £11.06 - delivers to USA and most other countries in 2-7 days. Includes full tracking and delivery confirmation. Requires signature. See our International Delivery Coverage for the delivery time to your country. Orders must be placed by 11am for same-day dispatch.