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 459 reviews


Really quick delivery easy to take supplements .... Try it !

Excellent Customer Service

I ordered a batch of Probiotics which unfortunately never arrived. I called Optibac who confirmed they had been posted out and to call back if they did not arrive in the next couple of days, they didn ... Read More

Great product, great customer services

My little one, 9 months, had great benefits from this product and I would recommend it strongly.

Good service

good service, good product!

Best Product I have found

I have taken probiotics for more than 15 years due to allergies causing frequent use of antibiotics and birth control pills. I had cadida numbers that were off the charts. I have become so much healt ... Read More

Excellent Customer Service

Optibac provide attentive, personalized service. You can trust this company.

Very impressed

The product is amazing, the shipping was faster than promised. Love OptiBac, recommend their products to everyone.

great product plus super fast delivery

Very pleased, ordered these to take with antibiotics (Im pregnant) felt so much better after started taking probiotics. Opted for next day delivery and got them next day before 9am! Great service