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 523 reviews

Very good helped while taking antibiotics

Very good service and a good product

Effective from day two.

I bought optibac probiotic for my 1 and a half month old baby as she had been on antibiotics at birth and used to pass stool 10-15 times a day. The probiotic started to show its effect on day two itse ... Read More

Very helpful when I have phoned.

I've called twice for advice and both times the advice proved very helpful.

Optibac Women really works

I am Asthmatic with Type2 Diabetes which is a problematic combination for gynae health and comfort. Last summer after having had both steroid tablets and antibiotics for an asthma exacerbation, I deve ... Read More

Fab Product and Company

I feel better so much better taking these. I just seem to have more energy and feel better in myself generally a- would definitely recommend

Great Detvice

Very efficient And pleased with the product

Fantastic company, service and probiotics

I cannot recommend optibac enough. Their service is fantastic and their probiotics actually work! Ive tried several from their range to find the right one for me and I am more than impressed. I've ha ... Read More


I have no words to describe what this product has done for my son I am indebted to optibac probitics just try it once and u will never regret it. I for sure will never ....I'm sure to recommend th ... Read More