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Rated 4.8 in 57 reviews
(Website and brand rated 4.6 from 882 reviews)

'For every day EXTRA Strength' from OptiBac contains 20 billion live microorganisms per capsule, with 5 strains including the well-researched L. acidophilus NCFM®. This is suitable for vegans.

Vegetarian Vegetarian
No Dairy No Dairy
No Gluten No Gluten
Suitable during Pregnancy Suitable during Pregnancy

What's it for?

A premium option from OptiBac containing L. acidophilus NCFM®, for every day use.

Who's it for?

For anyone who feels the need for extra strength live cultures support.

Each capsule:

Provides 20 billion live microorganisms, guaranteed until end of expiry.

OptiBac 'For every day EXTRA Strength'

This advanced, dairy-free supplement from OptiBac contains 5 extensively researched strains, such as L. acidophilus NCFM® and B. bifidum Bb-02, in an extra strength dose of 20 billion live microorganisms per capsule.

This supplement contains 5 billion live cultures of Lactobacillus acidophilus NCFM®, thought to be the most researched strain of acidophilus in the world. (For further reading see the acidophilus FAQ.)

The OptiBac strains in 'For every day EXTRA Strength' (formerly known as 'For daily wellbeing EXTRA Strength') are some of the world's most researched and documented strains. All of the friendly bacteria in this supplement are scientifically proven to pass through stomach acidity to reach the gut alive.

What's more, this natural supplement is free from sugars, fats and flavourings that may be found in other food & drinks containing live cultures.

Background Information

The human body is naturally home to both good and bad (pathogenic) bacteria, and keeping a healthy balance is thought to be an important factor in supporting healthy digestion and immunity. However, the body's intestinal balance of good and bad bacteria is delicate, and can easily be upset by factors such as antibiotics, stress, ageing, and diet.

People with a severe imbalance of good and bad bacteria in intestines may include:

  • Those on long term antibiotics
  • Those who suffer from conditions such as IBS, or IBD (eg. Crohn's Disease)
  • People with skin conditions such as eczema or acne

More about OptiBac

As a company we value quality over strength. Whilst this product contains an impressive 20 billion microorganisms per capsule, it's the premium research behind the strains that we like to shout about! See some of the Scientific Research on For every day EXTRA Strength.

Please note: As of November 2013, 'For daily wellbeing EXTRA Strength' has changed name to 'For every day EXTRA Strength' in the EU. The ingredients remain the same.


As a food supplement 'For every day EXTRA Strength' (formerly called 'For daily wellbeing EXTRA Strength') can be given to adults and children (from 1 year upwards) with the following recommendations:

  • Take one to two capsules daily with food, preferably breakfast, or as professionally directed.

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

  • For anyone unable to swallow capsules, the contents of the capsule can be mixed with a cold meal or beverage.
  • OptiBac will not cause dependency, and may be used on an ongoing basis.


Like the rest of the OptiBac range, this 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, 'For travelling abroad', or natural plant extracts as in 'For daily immunity'.

Nutritional Information

Filler: micro-crystalline cellulose; Live cultures: (Lactobacillus acidophilus NCFM®, Lactobacillus paracasei Lpc-37, Bifidobacterium lactis Bi-07, Bifidobacterium lactis Bl-04, Bifidobacterium bifidum Bb-02); vegetarian capsule: hydroxypropyl methylcellulose; titanium dioxide; anticaking agents: vegetable magnesium stearate, silicon dioxide.

Each capsule guarantees 20 billion micro-organisms.

Frequently Asked Questions

Healthcare professionals can follow the links below to read FAQs relevant to 'For every day EXTRA Strength'.

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.

  • I take these Extra Strength Probiotics every day and the first thing I noticed is that they sorted out my ulcerative colitis. Then summer arrived and my usual hay-fever was all but gone! I normally sneeze and suffer badly with allergic rhinitis but this year has been amazing. I really recommend trying them if you suffer from hay-fever - they really work! They work so well that I'm scared to stop taking them!!

  • I was very worried about my almost 92 year old mum, who has Alzhiemer's and has since developed auto immune disease, she has been gluten intolerant for a long time and I have a suspicion that it is all linked. She was feeling terribly ill recently, and this was due to steroids prescribed for the auto immune disease, a really nasty affair where she is itching like crazy and then get really large blisters. The steroids got rid of that, but of course, like most prescription medicine, only tackles the symtoms not the cause. After some research online I came across Optibac and wrote and asked about its suitablity for an old lady on steroids. I had some very good detailed advice, also saying to ask the Doctor who agreed the probiotics were likely to help. Well, she is taking the extra strong ones and half the dose of steroids (I am hoping to cut the steroids down even further). She is so much better and it does seem to be the Optibac as well as the cut down steroid dose. I was surprised at how quickly she started to feel better and has stayed that way for about a month now!

  • I sampled every day extra strength. I was amazed after trying it. I suffer from IBS and thanks to Optibac Probiotics I got rid of bloating. I wish I got it ages ago.I totally recommend Optibac for ... Read more

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