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.

Find a stockist

Type your postcode or town in the box below to find your nearest OptiBac Probiotics stockist:


We’re experts in live cultures, and the OptiBac Probiotics range offers you some of the most researched strains in the world.

Read more about our research...

A natural option

All the OptiBac Probiotics supplements are free from added flavourings, unlike many sources of live cultures.

See how we're different...

From our family to yours

We're a family run business, which means we understand the importance of looking after your whole family.

Find out more about us...

Customer Reviews

Below you'll see a selection of reviews recently collected on the independent external review website TrustPilot.
Read all our reviews

Average TrustPilot Rating

From 788 reviews

Optical have a great range of products that really do work,delivery is fast as well

I have used various products from the optimal range ,and they all do what they claim to do.The travela for using abroad is excellent it really does stop you from getting the runs,also I have used it i ... Read More

excellent product

I have been taking Optibac four weeks now it has certainly helped with my energy levels I can't claim to have a flat tummy but it does feel a lot calmer, one downside is the excessive wind.

Best probiotics on the market.

Excellent probiotics, I have bought the children's ones for my grandchildren too

Worked for me, will be back for more

Fantastic service, great company! One week flat worked for me. Will be making a repurchase next month and spreading the word!

Excellent product

I have been taking this for a few years but recently had a months 'rest' to see if I still really need it. Was troubled by belching and intestinal gas but on restarting have found that this is very mu ... Read More

Good quality and very effective probiotics

I came across this product at the free from exhibition. It seemed just perfect for me as I have been plagued by candida for years. I am on my second batch and take them every day. They make me feel so ... Read More

Optibac probiotics by road to croatia and back

I don't go abroad very often and the planed motorbike ride was taking me through six countries and I was staying over night and dinning out in all of them. I had read an article about Optibac probioti ... Read More

I feel good

Im no scientist. Ive tried many probiotics over the years. All i can say is i feel really good on these. Better mood and less anxiety symptoms. Maybe coincidence but with so much new research on how t ... Read More