OptiBac OptiBac Probiotics For Daily Immunity 30 Capsules


Code OPTIBAC-0093

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Product Info

OptiBac probiotic immunity supplement contains a unique strain of friendly bacteria called Lactobacillus paracaseil Casei 431 which is proven to survive to reach the gut alive. This probiotic also contains vitamin c that helps contribute to the normal function of the immune system and the reduction of tiredness and fatigue.

  • High-quality Probiotic
  • It helps maintain a healthy immune system and digestion
  • Vegan
  • Gluten-free
  • It can be taken during pregnancy 
  • Dairy-free
  • GMO-free 
How To Use

Immune Support 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.

For those unable to swallow capsules, open and mix contents with cool drink/food.

Can probiotics be taken every day?

The simple answer is yes! Probiotics have been researched for decades and the growing weight of evidence suggests that daily use is both safe and recommended. There’s no known risk of dependency or overdose: the human gut naturally contains trillions of micro-organisms, so the numbers found in supplements are modest by comparison. Probiotic bacteria are found naturally in our diets, but not all probiotic strains do the same thing, therefore, many people like to use a supplement containing probiotic strains which have been shown to support a specific area of health, such as immune function.

Who should not take probiotics for immune support?

Older people can be more vulnerable to colds and flu so may choose to take a supplement for extra support, but often have concerns about whether it’s safe to take probiotics. However, friendly bacteria supplements are safe to be taken by everyone from birth into old age 1-2. There are only a few circumstances when probiotics may not be appropriate, such as for adults or children who are immune-compromised. If you have a serious health condition, you should always speak to your doctor before taking any supplement.

Active Ingredients

Always check the pack for updates.

  • Vitamin C (80mg, 100% NRV*); stabiliser: maltodextrin (natural source);
  • vegetarian capsule: hydroxypropyl methylcellulose;
  • Live cultures: Lactobacillus paracasei CASEI 431;
  • Anti-caking agent: vegetable magnesium stearate.
  • Each capsule guarantees 5 billion micro-organisms. 


  • Vegan
  • Vegetarian
  • No dairy
  • Gluten-free
  • No added sugars
  • Yeast free
  • Free from artificial flavourings, colourings and preservatives
  • No chemicals or parabens
  • GMO-free
  • 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 No. Live Cultures 5 billion Added Ingredients Vitamin C 

Free Shipping & Delivery Options

Delivery Within Ireland 

  • Free Delivery Over €45
  • Orders will be dispatched within 1 working day
  • Shipping for orders under €45
    • €4.99 for An Post (order by 3pm for same day dispatch)
    • €4.90 for Fastway (order by 3pm for same day dispatch)
    • €5.99 for DPD (order by 1pm for same day dispatch)

European Courier Delivery (DPD) Deliveries to France, Germany, Netherlands, Spain, Italy, Denmark, Poland, Austria, Belgium, Sweden, Portugal & Finland will now use a courier service. This is a faster shipping service than current postal times with shipping now estimated within 5-7 working days.

Other International Deliveries
For more information on international delivery, please read our Delivery Information page.

La Roche Posay & Vichy products are only permitted to be sold within EEA/EFTA countries.

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