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Optibac Daily Wellbeing Probiotic and Prebiotic - 60 Capsules

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Optibac is our most highly recommended daily probiotic. Rather than only having one or two strains of bacteria, Optibac contains 6 strains. Having a variety of strains in this way ensures that your gut flora - or microbiome - is more naturally balanced, with each strain playing its own role.

The strains are as follows:

  • Lactobacillus rhamnosus Rosell-11.
  • Lactobacillus acidophilus Rosell-52.
  • Bifidobacterium longum Rosell-175.
  • Bifidobacterium breve Rosell-70.
  • Bifidobacterium bifidum Rosell-71.
  • Lactococcus lactis Rosell-1058.
In addition to these strains, Optibac also acts as a prebiotic, containing fructooligosaccharides. These act as a food source for bifidobacteria.

These capsules are suitable for vegetarians.


Potato starch, fructooligosaccharides, Probiotic culture (Lactobacillus rhamnosus Rosell-11, Lactobacillus acidophilus Rosell-52, Bifidobacterium longum Rosell-175, Lactococcus lactis Rosell-1058,Bifidobacterium breve Rosell-70, Bifidobacterium bifidum Rosell-71), hydroxypropyl methylcellulose, magnesium stearate, ascorbic acid.

Each capsule is guaranteed to contain 2.5 billion live micro-organisms until the best-before date (generally at least 1 year away). Hence, the recommended daily dose of 2 capsules will give you 5 billion micro-organisms.


  • Adults: Take 2 capsules daily with food.
  • Children under 8: Take up to 2 capsules daily. You can break the capsule and mix the contents with a drink, for children who are unable to swallow capsules.
  • Not suitable for children under 3 years of age.
There is no need to refrigerate. Store in a cool, dark place.

Further information about the ingredients


Optibac contains Lactobacillus rhamnosus Rosell-11 and Lactobacillus acidophilus Rosell-52. These strains are well-known to be beneficial (i.e. "friendly bacteria"). They usually reside naturally in the human gut and produce lactic acid that helps to fend off harmful bacteria such as Streptococus aureus, Enterobacter cloacae and Listeria monocytogenes. These lactobaccili work well as a supplement, because they can survive the stomach acids in order to reach the intestine, where they are required.


Bifidobacterium longum Rosell-175, Bifidobacterium breve Rosell-70 and Bifidobacterium bifidum Rosell-71 live mainly in the large intestine where they play a role in helping us to digest our food. Studies have also shown them to be beneficial to our immune system, and may play a role in fighting disease and preventing tumour growth. A healthy balance of bifidobacteria will promote good digestion and regular bowel movements. Bifidobacteria will compete with harmful strains of bacteria for attachment to the intestine.

Lactococcus lactis Rosell-1058

Lactococcus lactis Rosell-1058 is a lactic-acid bacteria obtained from the kefir culture. It fights other microbes including harmful bacteria and fungi.


Fructooligosaccharides (FOS) are sugar-based compounds that are not digested by the body. Instead, they pass through the stomach and the small intestine straight into the large intestine (colon), where they act as a food source to stimulate growth of the bifidobacteria.

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