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Saccharomyces boulardii
OptiBac Probiotics Probiotics http://www.optibacprobiotics.hk

For bowel calm

Product rated 4.7 from 35 reviews

HK$ 149.00 - 599.00

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What's it for? 

This Saccharomyces boulardii probiotic is for bowel calm, comfort and control.

Who's it for?

For anyone, aged 1 year and over, seeking an effective and natural solution.

Each capsule provides

5 billion probiotic cultures of pure, shelf stable Saccharomyces boulardii.

For bowel calm Probiotic

OptiBac Probiotics For bowel calm contains pure Saccharomyces boulardii, a natural and safe probiotic yeast with vast scientific research and documentation on its benefits in supporting bowel health.

S. boulardii has been internationally acclaimed as the number one probiotic for diarrhoea - reducing discomfort & urgency, and helping to restore control & regular bowel movements. This unique probiotic also supports the digestive health of those with conditions such as Candida overgrowth, Irritable Bowel Syndrome (IBS), or Inflammatory Bowel Disease (IBD).

For bowel calm Saccharomyces boulardii is a natural probiotic food supplement, and not a medicine.

How does For bowel calm work? 

Saccharomyces boulardii has undergone extensive clinical research demonstrating its ability to flush out pathogenic bacteria such as E. coli and Salmonella, in order to work against conditions such as diarrhoea.  What's more Saccharomyces boulardii has been safely and effectively used for the last 50 years to help maintain digestive health and comfort in those with diarrhoea, IBS, IBD, and Candida overgrowth.

For more information see Scientific Research on Saccharomyces boulardii.

Saccharomyces boulardii
Saccharomyces boulardii


Please Note : Only the larger pack size is available at IMI Shops.


Saccharomyces boulardii can be given to adults and children (from 1 year and over) with the following recommendations, or as professionally directed.

  • Take one to four capsules depending on severity of symptoms and up to six capsules daily, or as professionally directed
  • If taking anti-fungals, take separately (at least 2 hours apart).
  • For infants and children the dose should be lowered
  • Drink plenty of water with your course of live cultures. 
  • For anyone unable to swallow capsules, capsule can be opened and contents mixed with a cold meal or beverage. 

See also Can I take 2 OptiBac Probiotics at once?


It is not recommended to give live cultures to patients who: are severely immunosuppressed, have pancreatitis, are in the Intensive Care Unit, have blood in the stool, have central venous catheters; or to post-surgical patients with open wounds or infants with short bowel syndrome; unless under a doctor's care.

Full Ingredients

Live cultures: Saccharomyces boulardii(250mg); vegetarian capsule: hydroxypropyl methylcellulose; filler: potato starch; lubricant: magnesium stearate; antiadherant: silicon dioxide.

Each capsule guarantees 5 billion live cultures.

Suitable for vegans & vegetarians.


Like the rest of the range, Saccharomyces boulardii does not require refrigeration. 

Store out of direct sunlight.

  • Vegetarian
  • Vegan
  • Sugar free
  • Gluten free
  • S. boulardii
  • High strength
  • Natural cultures

Customer Reviews — 35 Reviews

  • Saccharomyces boulardii 5 product Michele 2013-12-12

    Posted by Michele (Andover,Hampshire) 6 years ago

    5 stars

    "I work as a practice nurse and a patient of mine recommended this product as it had settled her IBS,I was very pleased with the results and recently used it daily as a prophylaxis whilts travelling in Eygpt.I have recommended this to many of my patients."

  • Saccharomyces boulardii 5 product Laura 2013-08-27

    Posted by Laura (Worcestershire ) 6 years ago

    5 stars

    "I have suffered with Ibs for many years. My symptoms included bloating, pain and very embarrassing diahorea. Shortly after taking these tablets my stomach has felt soooo much better ( better than any medication from my gp) thank you "

  • Saccharomyces boulardii 5 product Sandra 2013-08-20

    Posted by Sandra (Bristol) 6 years ago

    5 stars

    "I suffer from Diverticulitis and had a bad flare up for two weeks bad Diarrhoea, stomach cramps, then I came across your site and bought Bowel Calm, and a miracle after two days all symptoms went, I have just ordered more also ordered Wellbeing Extra so to anyone suffering from Diverticulitis give it a go."

  • Saccharomyces boulardii 5 product Linda 2013-08-18

    Posted by Linda (London) 6 years ago

    5 stars

    "Hello, My partner was recommended these by a health shop (for calm bowls) as he had a stomach bug, and he woke up feeling much better today."

  • Saccharomyces boulardii 5 product Roz Power 2013-07-03

    Posted by Roz Power (IE) 6 years ago

    5 stars

    "I have had nausea,acid reflux and really bad bloating on and off for years now,sometimes its worse then others.
    I have just had 2 capsules and my nausea has gone,bloating gone and acid reflux GONE. I will continue to take them for as long as I need them. It saves a lot of money and time when you find the right product.
    Thankyou so much."