What are live cultures?

Live, or active cultures, refer to the microorganisms found in foods such as yoghurt, which may be beneficial for human health. The term 'live cultures' is increasingly used instead of the term 'probiotics' and a common example is the species acidophilus.

What is acidophilus?

Acidophilus is a particular species of natural bacteria from the Lactobacillus family. It has been well researched in areas such as traveller’s health, taking natural bacteria alongside antibiotics, and Candida overgrowth.

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We’re experts in live cultures, and the OptiBac Probiotics range offers you some of the most researched strains in the world.

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A natural option

All the OptiBac Probiotics supplements are free from added flavourings, unlike many sources of live cultures.

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From our family to yours

We're a family run business, which means we understand the importance of looking after your whole family.

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Customer Reviews

Below you'll see a selection of reviews recently collected on the independent external review website TrustPilot.
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Average TrustPilot Rating

From 385 reviews

Specialists in Probiotics, helpful staff, quick,efficient service.Well done.

After extremely reluctantly having to take a course of antibiotics, I luckily read a Sunday mag article on probiotics.Optibac was one of the few companies recommended. I read about the family run busi ... Read More


Trekked around nepal, took optibac daily and got through it unscathed! I'd recommend these tablets to everyone, and no refrigeration required. Perfect.

Optibac probably have the best researched probiotcs available

Don't send me this kind of rating reuest again !

Simply Amazing

I ordered my second pack of 80 saccharomyces Boulardi. I first started taking it in Sept 2014 during a bad bout of I.B.S. This week I had to undergo a Colonoscopy & I feel this probiotic protected my ... Read More

Travel without worry no need to go!! In a hurry.

Opticac travel capsules are the best thing I have ever invested in.My traveling is now worry free since I discovered Optibac.I have lived in Egypt drank the water and have had no problems,plus going ... Read More

excellent service as always

I purchase probiotics regularly and the service is always good from this company. Very quick delivery, effective product so entirely satisfied.

Success - happy tummies in Egypt, thank you!

I was slightly apprehensive travelling to Egypt again due to upset tummies on our first visit. I followed the instructions and voila, settled tums for the whole trip. Will recommend to everyone and us ... Read More

brilliant service

I cannot fault the service you get,packaging is brilliant,and I got mine within 2 days of ordering,just got my second order.What can I say its rare these days to get such a great service

Does the trick!

Didn't want to visit Egypt and get a bad stomach so we were recommended by a friend to take the pills. The children took them too. No stomach upsets and had a fantastic holiday as a result!