Optibac Immune Support Probiotics


Formulated for optimum immune health support, Optibac Probiotics Immune Support is a high-quality, extensively researched probiotic supplement with Vitamin C to help maintain a healthy immune system and digestion*.

Probiotics with Vitamin C for the immune system

For anyone who tends to suffer from poor immune health, and who is looking for a daily probiotic supplement with vitamin C to help support immune function and digestive health*.

  • Probiotics for immune system support Optibac Probiotics Immune Support contains 5 billion live cultures of the strain L. paracasei CASEI 431®, which helps to support immune health
  • Extensively researched L. paracasei CASEI 431® has been studied in over 20 clinical trials where it was shown to stimulate immune responses and increase immune cell activity
  • With Vitamin C for immune function With 80mg of Vitamin C per capsule, to help maintain normal function of the immune system, contribute to our resistance to infection, and reduce tiredness and fatigue
  • Also aids digestion L. paracasei CASEI 431® has also been shown to support gut health and complement the natural gut bacteria
  • Scientifically proven Shown to survive stomach acidity and reach the gut alive, where over 70% of the body’s immune cells reside
  • For daily use High-quality, daily immune support in just one easy-to-swallow capsule
  • Natural and vegan Vegan, dairy free and gluten free, with absolutely no artificial flavorings or colourings
  • Highly recommended From the UK’s most trusted & recommended brand of probiotic supplements.

Immune Support can be given to adults and children, from 4 years upwards, with the following recommendations:

  • Take 1 capsule daily, preferably with breakfast, or as professionally directed.
  • For those  unable to swallow capsules, open and mix contents with cool drink/food .
  • May be used on an ongoing basis

Storage instructions

  • For best results, do not remove desiccant sachet from the glass jar and close lid firmly after each use.
  • Store in a cool, dry place below 25°C and out of direct sunlight. For maximum potency, can be refrigerated after opening.


Probiotics are not recommended for those with serious medical conditions e.g. those who are severely immunosuppressed, have pancreatitis, are in the ICU, have melaena, have a central venous catheter, short bowel syndrome, or patients with open wounds following major surgery; unless under a doctor’s care. Keep out of reach of children.

Gut health supplements are not intended to prevent, treat or diagnose any medical conditions. If taking probiotic supplements for gut health, note that these should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. If you are taking any medications or have a serious medical condition, consult a doctor before use. Optibac supplements will not cause dependency and may be used on an ongoing basis.

Vitamin C (80mg); Probiotic cultures: Lactobacillus paracasei CASEI 431®; maltodextrin, hydroxypropyl methylcellulose, vegetable magnesium stearate

Each capsule contains 5 billion CFU.

  • Vegan
  • Vegetarian
  • Dairy free
  • Gluten free
  • No added sugars
  • GMO free
  • Yeast free
  • Free from artificial flavorings, colorings and preservatives
  • No chemicals or parabens
  • Suitable during pregnancy
  • Suitable during breastfeeding

Following the taxonomic updates published in April 2020 which are intended to be adopted globally, this strain may now also be referred to as Lacticaseibacillus paracasei subsp. paracasei CASEI-431.

Format Capsule
CFU 5 billion
Added Ingredients Vitamin C
Recommended Use 1 capsule daily
Age Range Adult
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Optibac Immune Support Probiotics