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 739 reviews

OptiBac probiotics

The capsules eased my wife's stomach whilst she was taking antibiotics but her chest did tighten a little, having said that she has three chronic conditions two of them relating to her breathing, bron ... Read More

Excellent product

I came across Optibac through an internet search for probiotics. I've been taking other brands for a while now re a fatty liver. I liked the whole concept of this company and felt I could trust the pr ... Read More

Very professional service

First time I have placed an order with this can't and I would like to tell you all how professional they are.Product arrived the next day and I didn't even pay extra.Thanks

Great results treating acne.

I bought the extra strength every day Optibac for my son who has had acne since he was 15. He is now 21 and has struggled to control it despite excellent hygiene. Within 2 days his skin was clearing, ... Read More

Very Happy So far

I was suggested the Pro-biotic for my two sone by a cousin here in India. I was told that I will have to buy it from a shop in London. Casually I checked online and saw that the medicines were availab ... Read More

Excellent Service

Excellent Service


good service. Arrived on time and as ordered.

Easy ordering quick delivery

The product information is very clear and helped me to find the product I felt suited me best

Great products

I have ordered probiotics for my baby boy - he is 13 months old and had a cough for a such a long time. I have been told by my friends to try a probiotics.So he is taking them 4th week now and seems t ... Read More