£22.99 £59.99
Includes 20% VAT
Product rated 4.8 in 79 reviews

A 20 billion live cultures supplement, with L. acidophilus NCFM®, the most researched strain of acidophilus in the world.

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

As featured in

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What's it for?

Premium live cultures supplement for every day use containing L. acidophilus NCFM®.

Who's it for?

For anyone, from 1 year onwards, seeking a premium, extra strong option.

Each capsule:

Provides 20 billion live cultures.

Which specific strains?

  • Lactobacillus acidophilus NCFM®
  • Lactobacillus paracasei Lpc-37
  • Bifidobacterium lactis Bi-07
  • Bifidobacterium lactis Bl-04
  • Bifidobacterium bifidum Bb-02

OptiBac 'For every day EXTRA Strength'

  • High quality & high strength good bacteria supplement for daily use, scientifically proven to reach the gut alive
  • Provides 20 billion live microorganisms per capsule, guaranteed until end of expiry
  • Contains 5 different strains, including Lactobacillus acidophilus NCFM®; thought to be the most researched strain of acidophilus in the world
  • Does not require refrigeration, contrary to some other live cultures supplements
  • Suitable for women during pregnancy, vegans and vegetarians, and certified gluten free for those with coeliac disease or an intolerance
  • Contains no added sugars, artificial flavourings or colourings

This advanced, dairy-free supplement from OptiBac contains 5 extensively researched strains, such as Lactobacillus acidophilus NCFM® and Bifidobacterium bifidum Bb-02, in an extra strength dose of 20 billion live microorganisms per capsule. This includes 5 billion live cultures of L. acidophilus NCFM® alone, which is thought to be the most researched strain of acidophilus in the world.

All of the friendly bacteria in OptiBac 'For every day EXTRA Strength' (formerly known as 'For daily wellbeing EXTRA Strength') 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. 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!

It is important to note that this supplement, unlike many other live cultures products, does not require refrigeration due to improvements in freeze drying techniques and the strains within the product that are naturally robust to survive harsher conditions.

Available in two pack sizes of 30 or 90 capsules of live cultures. Each capsule provides a count of over 20 billion natural bacteria.

Instructions For Use

Food supplement suitable for 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.
  • Do not exceed recommended daily dosage.

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.


Like the rest of the OptiBac range, 'For every day EXTRA Strength' does not require refrigeration. Store 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.


United Kingdom

Standard Delivery
Free over £100. Discount automatically applied at checkout when you spend £100.
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.

Next Day UK Delivery *
Order before 3pm from Monday – Friday and select option ‘next day delivery’ at the checkout. Signature required.
* Excludes: Channel Islands, Isle of Man, Isle of Wight, Northern Irish postcodes BT18 & upwards, Scottish borders and offshore, and a small number of remote mainland destinations as determined by our delivery courier.

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.


We deliver to more than 50 countries and offer free delivery on orders over £100.
For more details, please check out our shipping & delivery FAQ.


We are a UK-based company and product prices on our website are shown in pounds sterling (GBP £).
If you are purchasing from abroad, conversion to your local currency will be made by your bank on the day of purchase.
We recommend using an online currency conversion tool if you'd like an estimate, though do bear in mind that the rates displayed may be subject to change before your bank processes your transaction.

  • I have been using optibac everyday for 3 months now. I have to say I didn't think anything was happening or changing. After a while I realised that I wasn't having as many symptoms of diverticular disease as before. There was usually pain most days but now there's very little pain. My need for the loo has gone down from 4 times a day to perhaps 1 or 2 times. After 3 months using this product I realise that some issues within the bowel have changed for the better.

    I know there is no price on improved health but I will have to wait until next pay day before I can re-purchase my optibac again. It's worth every penny and I will budget better in the future in order to not be without them again.

    Thank you so much for bringing some peace to my body issues with this wonderful product.


  • I have taken my time writing a review as I wanted to be sure that I gave the probiotics enough time to prove themselves. I had read all the reviews on here and thought surely they couldn't act so quickly.

    After being on antibiotics for a horrendous abscess running along the whole of my right lower jaw, I started with diarrhoea. I expected some so it wasn't too bad to begin with. Within days I was rushing to the loo 16 - 20 times; when I had nothing left in me it was just water being drawn from my body and the lining of my colon. Then came fresh blood. (Sorry if this is too graphic but there will be people out there wondering what is happening to them).

    I called my GP whom asked for a sample and then had to wait four days for results. Thankfully it came back in two. It was C.Diff. Having been stripped of good bacteria from my gut, by antibiotics, I was open to everything. A small percentage of adults carry the C.diff bug without harm but I also work as a Dr's Receptionist having all things thrown at me so I guess I didn't stand a chance.

    I was prescribed Vancomycin for 14 days, thankfully this helped by the 2nd day of taking and I began to improve although I still felt raw inside. At the end of two weeks I went back to work, I just thought I would heal, being careful what I had to eat or drink.

    Within 10 days I was bloating, diarrhoea, I knew exactly what it was but had to do another sample, I didn't want to wait as this time my colon felt that it would rupture. Thank fully the gas did release propelling me towards the bathroom, good job my husband loves me. When I was ill initially I had been researching probiotics but hadn't come across anything that I felt would be really useful, this time I came across Optibac, after reading every review and paper on these probiotics I ordered Everyday Extra Strength for next day delivery. I took them the next morning. (Thank you for the speed of delivery Optibac).

    WELL! I took two with breakfast. Within an hour my bloating went and the inflammation in my colon decreased. Gob smacked! and thank goodness for these as my sample had been lost at the hospital, I had to do another sample which meant I would have probably been hospitalised or dead. Sounds dramatic but true. So I did not start taking my next lot of antibiotic, Vancomycin for a week from becoming really ill.

    I was supposed to be going on holiday a few days after finishing by anti b's, worried as I felt I may need something else, I had been reading up on all the other probiotics. I was told that Saccharomyces boulardii would be needed with my condition.

    Fantastic, having both I felt me again, I was still taking the antibiotics at this time. I went on holiday with my probiotics. By mid-week I felt the all too familiar inflammation building on the left side of my colon and one soft stool with blood. Had I overdone it, a little, but I didn't think to up my Saccharomyces as I was now off the anti b's. I was taking 3 a day of these and two in the morning of Everyday ES. I immediately upped my dose of the Saccharomyces and stayed on this for the rest of the week. I didn't want to be exploding on the plane. Done, inflammation retreated.

    So I'm back home ready to go back to work but at present I will be staying on both probiotics until I feel I can reduce them, but I think I will be buying them for the unforeseen future as I had an unexpected occurrence .

    For 20 years I have had little pustules appear on my hands, not full of anything, they turn brown and my skin peels. (I was told it was pustular Psoriasis by one professional but then told not by another.)It has been on the soles of my feet as well. It definitely happens when I eat something my body dislikes. GONE! I had something to eat or drink on holiday, I felt my palms heat up and thought here we go, not gone. It went to nothing, no peeling, Hooray!

    Sorry this was so long but these probiotics are amazing and I don't think we realise how important our gut is for all ailments and mental health. I can't thank them enough.

  • I suffer from Crohn's disease and by taking the optibac extra strength I am able to lead a normal life again. Thank you Read more

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