For travelling abroad Probiotics

60 capsules |2 months' supply

4.7/5 (31 reviews) Read verified product reviews
4.7/5 (31 reviews) Read verified product reviews
Camilla Gray DipCNM Nutritional Therapist
Holidays and travelling can be a really worrying time for some, so, for peace of mind, I recommend popping these in your case before jetting off.
Camilla Gray
Camilla Gray DipCNM Nutritional Therapist

Who is it for?

Unfortunately, we do not expect this product to be back in stock until Spring. As an alternative, we recommend taking Every Day alongside Saccharomyces Boulardi, both are great travel companions.

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See our Delivery & Returns for more information.

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  • Vegetarian


  • Gluten free

    Gluten free

  • GMO free

    GMO free

Key benefits

Probiotics to take when travelling abroad

Unfortunately, we do not expect this product to be back in stock until Spring. As an alternative, we recommend taking Every Day alongside our Saccharomyces Boulardii product; Saccharomyces boulardii is found in ‘For travelling abroad’. If you would like further information, do get in touch with our helpful Nutrition Team via live chat or send them your enquiry.

For anyone looking to buy a supplement to take prior to and during travel to hotter and more humid climates.

  • Each capsule provides 5 billion CFU live cultures and the billions count is guaranteed until end of expiry
  • The Lactobacillus, Saccharomyces and Bifidobacterium genera contained in this supplement are all extensively researched for the support of digestive health, including occasional diarrhea*
  • Shown to survive at higher temperatures and humidity, making this a suitable travel companion for destinations with hotter climates, such as Mexico, Egypt, India and the Caribbean
  • The high-quality nature of this supplement gives travelers increased confidence to enjoy their holidays worry-free
  • Does not interfere with antimalarials or other travel medication
  • Scientifically proven to pass through stomach acidity and survive to reach the gut alive
  • Easy to take on the go – no refrigeration required
  • Suitable for vegetarians, and gluten free for those with coeliac disease or an intolerance
  • Suitable from 1 year onwards
  • Recommended for daily use preferably starting 3 - 5 days before departure, continuing during time abroad and for a couple of days upon return
  • Free from artificial flavorings or colorings that may be found in other food & drinks containing live cultures
  • Available in two pack sizes of 20 or 60 capsules
  • From the UK’s most trusted & recommended brand of probiotic supplements.

Please note: This is a food supplement and is not intended to prevent, treat or diagnose any medical conditions.

Probiotic strains

  • Bifidobacterium longum Rosell-175
  • Lactobacillus rhamnosus Rosell-11
  • Saccharomyces boulardii
  • Lactobacillus acidophilus Rosell-52
See full ingredients list

Complements gut bacteria


General digestive

Customer reviews

4.7/5 (31 reviews)
  • Started these before my holiday . I then kept taking them everyday during my holiday to Thailand and then through Cambodia to Vietnam. So lots of different foods. I had no problems and took them when I returned. Would definitely take them again .

    Candi Davies- 5th June 2020

  • Took several days before and after as well as all the time I was travelling around Cambodia and Vietnam. Only had one day I was off colour which was really good for me! So pleased I took them and would use again.

    Wendy Gray- 4th June 2020

  • Purchased these probiotics before my holiday to Thailand as l had a bad bowel infection a few months ago after a course of antibiotics. Unfortunately l had two recurrences of this and was worried this would happen again while l was on holiday. I am so glad l took these as my stomach was fine even though l was eating spicy Thai food a lot of the time. I will now take these on future holidays.

    Mary Taylor- 31st December 2019

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Help & advice

Speak to our team of experts (nutritionists, microbiologists and nutritional therapists) any time for free advice, with absolutely no obligation to buy.

Camilla Gray
Camilla Gray DipCNM Nutritional Therapist

Why choose us?

We are the UK's most trusted & recommended brand of friendly bacteria supplements.

† As determined in an independent survey of 1000 British women.

  • How to use

  • Ingredients

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  • Delivery & returns

  • How to use

    Instructions for use

    Food supplement suitable for adults and children (from 1 year onwards) with the following recommendations:

    • Take 1 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.
    • Drink plenty of water with your course of live cultures.
    • For anyone unable to swallow capsules, the content of the capsules may be mixed with a cold meal or beverage.

    Food supplements should not be used as a substitute for a healthy diet and lifestyle. Those with serious medical conditions should consult their doctor before use. Optibac will not cause dependency, and may be used on an ongoing basis.


    • For best results, do not remove desiccant sachet from the glass jar and close lid firmly after each use.
    • Store in a cool, dry place below 25°C (77 °F) and out of direct sunlight.


    Live cultures 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, infants with 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 'For travelling abroad'

  • Ingredients


    • Stabilizer: potato starch
    • Live cultures: Bifidobacterium longum Rosell-175, Lactobacillus rhamnosus Rosell-11, Saccharomyces boulardii and Lactobacillus acidophilus Rosell-52
    • Vegetarian capsule: hydroxypropyl methylcellulose
    • Anti-caking agent: vegetable magnesium stearate; antioxidant: ascorbic acid.

    Each capsule guarantees 5 billion live cultures.

    for travelling abroad supplement fact panel

    Suitable for vegetarian diets.

    Following the taxonomic updates by a global team of scientists and published in April 2020, a reclassification has been advised for the L. rhamnosus species. The rhamnosus strain in 'For travelling abroad' may therefore now also be known as Lacticaseibacillus rhamnosus Rosell-11.



    Customer feedback collected via independent review platform Trustpilot. See 'Reviews' tab for more customer opinions collected via our own website.

    Format Capsule
    CFU 5 billion
    Recommended Use 1 capsule daily
    Age Range Adult
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  • Delivery & returns

    USA standard shipping: $4.99

    International postal order - typically deatched and delivered within 5-10 working days.
    Free standard shipping on orders over $100.

    USA express shipping: $6.99

    We use DHL and orders are typically dispatched and delivered within 2-5 working days.

    Good to know

    • We'll send you an email to confirm once your parcel has been dispatched.
    • For delivery queries, please email
    • We are unable to ship orders to PO boxes.
    • Product prices on this website are always shown in US dollars (USD $) and exclude tax - tax is not applicable as orders are fulfilled from the UK.

    Worldwide Delivery

    • We deliver to more than 50 countries.
    • Shipping is charged at cost - please note that duties may apply.
    • Please allow 3-7 working days for delivery within Europe and 5-12 days to all other destinations. Includes order tracking.  
    • If you are located within the United Kingdom or Europe, we recommended switching to our UK website.
    • International deliveries might currently take a little longer due to the global coronavirus situation. Please refer to the webpage of our international delivery provider DHL to confirm the number of days it takes to receive your order and whether they currently ship 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.
    • Long distance shipping and short-term exposure to high temperatures will not compromise the viability of our products. Customers living in very hot countries should store the products out of direct sunlight and refrigerate if the option is available.

    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.

Customer Questions

All questions answered by probiotic experts Dr Kate Stephens PhD (Food and Microbial Sciences) BSc(Hons) Medical Biology and Kerry Beeson BSc (Nut. Med.) Nutritional Therapist

None of the supplements in the Optibac range need to be refrigerated either at home or when travelling, if stored at room temperature (25°C or 77°F). But the strains contained in ‘For travelling abroad’ are very hardy and can survive at higher temperatures and humidity levels (keep them out of direct sunlight if possible). This makes the supplement an ideal travel companion for destinations with hotter, more humid climates such as India, Egypt, or Mexico.

When choosing any supplement, it is always a good idea to follow the research. A friendly bacteria supplement designed especially for travelling will contain strains which have been extensively researched and are suitable for that specific purpose(1). All of the strains in ‘For travelling abroad’ are of the highest quality; they have been extensively researched in numerous clinical trials and proven to reach the gut alive.

(1). Kollaritsch, H. et al. (1993). 'Prevention of traveller's diarrhea with Saccharomyces boulardii. Results of a placebo controlled double-blind study'. Fortschr Med, 111(9): 152-6
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We recommend that ‘For travelling abroad’ is taken for at least 3-5 days before departing on your foreign travels. This allows time for the friendly bacteria to reach the gut and start to complement the natural gut bacteria(1). There are lots of different types of friendly bacteria but the strains in this supplement are especially suitable for use when travelling and for 'traveller's tummy'(2). It is fine to use 'For travelling abroad' in combination with your favourite daily live cultures supplement, taken regularly in between your foreign trips.

(1). Hemarajata, P. and Versalovic, J. (2013 Jan) Effects of probiotics on gut microbiota: mechanisms of intestinal immunomodulation and neuromodulation. J. Therap Adv Gastroenterol. 6(1): 39–51. (2). (2018). Probiotics 'Ease Upset Stomachs'. [online] Available at: <> [Accessed 7 October 2018].
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‘For travelling abroad’ is designed to be easy to take when travelling. The ‘fridge-free’ formulation means you can take it with you wherever you roam! It is suitable for all the family over the age of 1 year (pregnant women should consult with a doctor before use), and if desired, the easy-to-swallow capsules can be opened, and contents popped into cool, non-acidic drinks. The four carefully selected strains combine to make this supplement a perfect all-rounder - a good gut feeling means a great holiday!

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