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 440 reviews

Very happy with this product

I would buy from this company again

Great service

I would recommend this company for purchasing high quality probiotics with excellent customer service

Very effective product!

I never doubted the effect of this product as I have used Optibac everyday extra strength probiotics in the past and they worked great, helping to relieve my IBS symptoms. I decided to buy two packs o ... Read More

Best on the market! And friendly service

This product is fantastic! My back acne is clearing up very quickly for the first time in years. First class service too.

Easy to take and have good results

Would recommend to any one

Excellent product & customer care

I have been an Optibac customer for about a year and taken the Every Day Product and the one recommended for travelling abroad during that time. I have been delighted with the improvement in my IB sym ... Read More


I have been diagnosed with 'Histamine Intolerance' also Achalasia and slow muscle process through the Gastric tract including the upper GI and irritable bowel syndrome. The contents of eaten food lay ... Read More

Success and Relief and Last!

I was suffering from recurrent or chronic vaginal thrush for over a year. I had completed several courses of clotrimazole and had even used regular probiotics without success. I came across this par ... Read More

Excellent service

I love optibac products. I looked for ages for a feminine pro biotic that agreed with me. This product has been wonderful with no recurring health problems. Would highly recommend.