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'For travelling abroad' from OptiBac is the ideal supplement for travel. With species such as L. acidophilus and S. boulardii this, like the rest of the range, does not require refrigeration.

Vegetarian Vegetarian
No Gluten No Gluten

What's it for?

OptiBac live cultures to take prior to and during your travels.

Who's it for?

Travellers seeking a supplement for foreign environments such as India, Egypt and Mexico.

Each capsule:

Provides 5 billion live cultures, guaranteed until end of expiry.

OptiBac 'For travelling abroad'

This supplement contains 4 high quality strains of live cultures, such as Lactobacillus acidophilus Rosell-52, all proven to survive to reach the gut alive, and to survive in warmer, more humid climates.

When eating and drinking different foods in unfamiliar environments it can be common to experience stomach upsets, and this is thought by some to be caused by an upset of one's natural gut flora. OptiBac 'For travelling abroad' contains high quality strains of natural bacteria, or live cultures.

What's more, the particular strains in this live cultures supplement have been shown to survive at higher temperatures, making this a suitable travel companion for destinations with hotter, more humid climates than that of the UK. The high quality nature of this supplement gives travellers the increased confidence to enjoy their holidays anxiety-free. Make this shelf-stable and cabin friendly product your travel essential for far flung locations such as Egypt, India and Thailand.

More about 'For travelling abroad'

Lactobacillus acidophilus Rosell-52 is a natural resident of the intestinal microflora; this strain of acidophilus has been well studied to survive your stomach acidity and biliary salts; and to travel to the intestines without damage. L. acidophilus Rosell-52 has also been through numerous in vitro tests.

Saccharomyces boulardii is a unique yeast sold widely across Europe, especially in France and Germany.S. boulardii has undergone extensive scientific research documenting its safety, and investigating its properties when in contact with pathogenic bacteria such as E. coli and Salmonella.

Lactobacillus rhamnosus Rosell-11 is a natural component of the intestinal friendly bacteria; the rhamnosus species is one of the most studied in the world of live cultures. L. rhamnosus Rosell-11 from OptiBac has been proven to resist bile and gastric acidity over pH 3 - therefore if taken at mealtimes (when pH is around 4), it will pass through the stomach without being damaged.

Bifidobacterium longum Rosell-175 colonises primarily in the large intestine or colon.

See Scientific Research on live cultures & travelling

NB: The packaging of 'For travelling abroad' has recently been changed to ensure the strains are better protected.

Bifidobacterium longum R-175


As a food supplement 'For travelling abroad' can be safely given to adults and children (from 1 year and over) with the following recommendations:

  • Take one capsule daily with food, preferably breakfast, starting 3-5 days before departure, continuing during travel abroad and for a few days upon return from travel, or as professionally directed.

  • For anyone unable to swallow capsules, the content of the capsules may be mixed with a cold meal or beverage.


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

Keep away from direct sunlight and intense heat.


Live bacteria 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, 'For travelling abroad', or natural plant extracts as in 'For daily immunity'.

Nutritional Information

Filler: potato starch; vegetarian capsule: hydroxypropyl methylcellulose, titanium dioxide; live cultures: (Bifidobacterium longum Rosell-175, Lactobacillus rhamnosus Rosell-11, Saccharomyces boulardii and Lactobacillus acidophilus Rosell-52); anticaking agent: magnesium stearate; antioxidant: ascorbic acid.

Each capsule guarantees 5 billion micro-organisms.

Frequently Asked Questions

Healthcare professionals can follow the links below to read FAQs relevant to 'For travelling abroad'.

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


Delivery Options


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.

Same day dispatch

For most delivery options, if you place your order by 3pm on a working day (i.e. Monday to Friday, excluding bank holidays), we'll dispatch it on the same day. Any orders after this time will be dispatched on the next working day.

If you choose our International Express Courier option, the cut-off time is 11am.

United Kingdom

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.

Method Price
Standard Shipping
Please allow 4-7 days for delivery.

First Class Postage
Please allow 1-3 days for delivery.

Next Day Courier
Guaranteed next-working-day delivery to most of the UK if you order by 3pm Monday to Friday (requires signature).



We ship to virtually all countries around the world, with the notable exception of Hong Kong.

Most international delivery prices are dependent on the size of your order and where it's 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.

Please note that not all services are available to all destinations. See our International Delivery Coverage table for the availability of each service for your country.

Method Price
International Standard
Please allow 3-7 days for delivery within Europe and 5-12 days to all other destinations. (Does not include tracking).
International Signed
International postage with delivery confirmation (requires signature).
Please allow 3-7 days for delivery within Europe and 5-12 days to all other destinations.
International Tracked & Signed
International delivery with full tracking and delivery confirmation (requires signature).
Please allow 3-7 days for delivery within Europe and 5-12 days to all other destinations.
International Express Courier
Fast international courier service with full tracking and delivery confirmation (requires signature). Delivers to USA and most other countries in 2-7 days. See our International Delivery Coverage for the delivery time to your country.

Remember: the price of international delivery depends on the size of the order and the country to which it's being sent. The final price of shipping will be shown in the checkout before you pay.

  • Tour of Northern India in January and expected Delhi Belly. Took Optibac for 3 days prior to trip, during and 5 days after. No symptoms whatsoever. Would recommend.

  • My 14 year old daughter and I travelled to Ecuador this summer. We started taking the Opti Bac a few days before we left and used it every day for the two weeks we were there. Having travelled a fair bit, we are generally cautious the first few days in a new country to allow our bodies to adjust. However, we both had a sense that we could be a bit more cavalier. We immediately started eating our meals out of the market stalls and drank the fresh juices made at the road side stands. We ate everything and anything we wanted and had absolutely no ill effects. My husband and I are traveling to Nicaragua this winter and we will always travel with Opti Bac now.

    Portland, OR
  • We have used these on two holidays to Egypt and have never had any kind of stomach upset whilst others around us have been suffering. I would recommend them highly. Read more

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