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 665 reviews

Actually WORKS!

I have been constipated for 15 years. I have been on a dairy free and gluten free diet for the past 3 years while taking Miralax every night. I was still bloated and extremely uncomfortable. One Week ... Read More

Excellent service! , great products! good quality!

Very happy with Optibac Probiotics, I use Saccharomyces Boulardii, there are many competitors but Optibac have an excellent quality, and very good customer service. Highly recommendable!

Optibac Probiotics Daily

I ordered the product and the girl I spoke to was very helpful. Told her my condition and she gave me the name of the product that best suited and the reasons why. Fantastic customer service.

Great company to purchase from.

I was recommended to optibac and was very impressed at how easy it was to order from them and how quickly the products were delivered. I will continue to order my probiotics from optibac. Very satisfi ... Read More

So far so good!!

Capsules arrived on time as promised. Have taken one per day as prescribed since four days prior to trip to India and each day of visit. Also since return two days ago to finish the pack. No Delhi Bel ... Read More


Very easy to use website with all the information you could possibly need. Easy to place an order and product gets despatched very quickly. Would highly recommend this company.

Excellent products, service & super helpful!

Probiotics are one of the most complex areas of nutrition so I would always buy from a specialist manufacturer. I've known of Optibac for some time and each and every contact with them has always been ... Read More

Helped made me fèel better

Order arrived promptly and was just what i needed after prolonged course of antibiotics. Would definitely use again if necessary as it did the job and helped my recovery.