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 474 reviews

First class company

Found staff very helpful, certainly helped me out after a bad case of pneumonia, resulting in my body being bombarded with antibiotics. My order came very quickly.

Good product, good service!

Friendly and efficient service on the phone. Good delivery service and a good product. Could I suggest a smaller container where possible, in order to use less plastic?

Quick and easy

Great product arrived within 3 days and I live very North..

Super, efficient service.

I read about optibacs on the Internet and was very interested in their products. I emailed for further information and got a quick and knowledgable response. The products have been life changing for m ... Read More

Very Happy

Good speedy service from OptiBac. We have just returned from a holiday to Thailand and the whole family took the probiotics for travelling abroad. None of us were ill. Of course we have no control ... Read More

Rosacea & Bloated Stomach.

I've been suffering with rosacea and bloating for the last 5 years. Ever since I quit smoking, my skin and stomach decided they didn't like me any more. I'm a 39 year old male who never had acne as a ... Read More

Excellent product and service

Delighted with the probiotics, instructions and service. Thank you.

Great product for my acid reflux

These tablets have really helped with my acid reflux, it seems to have calmed right down. I was recommended by my pharmists to take probiotics and can safely say have felt much better. I take one ever ... Read More


Helpful customer service team , great price, fast delivery, recommended - thankyou