For daily immunity

30 capsules



(inc. VAT)

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Gluten free

Gluten free

Dairy free

Dairy free

During pregnancy

During pregnancy


A high quality live cultures supplement with vitamin C to help support your resistance to infection. 5 billion CFU of Lactobacillus paracasei CASEI 431®.

OptiBac 'For daily immunity' featured in the press

Strains & active ingredients

  • Lactobacillus paracasei CASEI 431®
  • Vitamin C
  • Product description

  • How to use

  • Ingredients

  • Help & advice

  • Reviews

  • Product description

    Friendly bacteria expert Farah (Natural Sciences BSc Hons) explains OptiBac 'For daily immunity'

    Who is it for?
    For anyone looking for a daily friendly bacteria supplement with vitamin C to support the normal function of the immune system.

    Good to know:

    • Each capsule provides 5 billion live cultures and 80mg of vitamin C. The billions count is guaranteed until end of expiry.
    • 70% of the immune system lives in the gut - vitamin C is a water-soluble vitamin and is absorbed in the small intestine
    • Contains the well-researched strain Lactobacillus paracasei CASEI 431® which has been clinically trialled in thousands of people.
    • Suitable from 1 year onwards.
    • Scientifically proven to pass through stomach acidity and survive to reach the gut.
    • Vitamin C helps to support a healthy immune system and your body's resistance to infection.
    • Easy to take on the go – no refrigeration required.
    • Suitable for: women during pregnancy and for breastfeeding mothers, vegans, vegetarians and gluten free for those with coeliac disease or an intolerance.
    • Dairy free
    • Sugar free
    • Free from artificial flavourings or colourings that may be found in other food & drinks containing live cultures.
    • Recommended for daily use.
    • Available in one pack size of 30 capsules.

    Please note: This is a food supplement and is not intended to prevent, treat or diagnose any medical conditions.

  • How to use

    Instructions for use

    'For daily immunity' can be given to adults and children, from 1 year onwards, with the following recommendations:

    • Take 1 capsule daily, preferably with breakfast, or as professionally directed.
    • Drink plenty of water with your course of live cultures.
    • For anyone unable to swallow capsules, the content of the capsule may be mixed with a cold meal or beverage.

    Food supplements should not be used as a substitute for a healthy diet and lifestyle. Those with serious medical conditions should consult their doctor before use. OptiBac will not cause dependency, and may be used on an ongoing basis.


    Like the rest of the OptiBac range, 'For daily immunity' does not require refrigeration. Store in a cool, dry place below 25°C and out of direct sunlight.


    Live cultures 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, infants with short bowel syndrome, or patients with open wounds following major surgery; unless under a doctor's care.

  • Ingredients


    • Vitamin C (80mg, 100% ECNRV*)
    • Stabiliser: maltodextrin (natural source); anti-caking agent: vegetable magnesium stearate
    • Vegetarian capsule: hydroxypropyl methylcellulose
    • Live cultures: Lactobacillus paracasei CASEI 431®

    Each capsule guarantees 5 billion micro-organisms.

    Suitable for vegetarian and vegan diets.

    * EC Nutrient Reference Value.

  • Help & advice

    Talk to our experts

    If you have a specific question or need some advice on which product to choose please contact our Nutrition Team on +44 (0) 1264 318 881 or click on the link below for our contact form.

    Need help choosing a product?
  • Reviews

    Customer reviews

    • Couldn't manage without them.


    • I already took Extra Every day and S. Boulardii and decided to try Immunity. This was a life changer for sure. I could hardly believe it, there was nothing else I was doing differently so it had to be the addition of the Immunity pills. In a nutshell I just feel so much healthier nowadays and this allows me to do so much more. I take these every day and will definitely continue. Amazed a little pill can make such a world of difference.


    • Got these instead of my usual everyday Optibac probiotics... I am so happy with these and going to continue with them for the winter.


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