HealthyBuzz offers OptiBac - Saccharomyces Boulardii: What's it for? Extensively researched, unique friendly yeast proven to reach the gut alive. Who's it for? For anyone, from 1 year onwards, seeking a pure Saccharomyces boulardiisupplement. Each capsule: Provides 5 billion live cultures of pure, shelf stable Saccharomyces boulardii. OptiBac Saccharomyces boulardii Saccharomyces boulardii is a well-researched, internationally acclaimed strain, proven to survive through stomach acidity to reach the gut alive 5 billion live cultures per capsule, guaranteed until end of expiry Friendly yeast, more robust to environmental stressors than common bacterial live cultures, and especially stable and resistant to heat and humidity No refrigeration required, contrary to some other live cultures supplements Used safely for over 50 years, suitable for vegans and vegetarians, and gluten free for those with coeliac disease or an intolerance All OptiBac strains are thoroughly researched and documented, so you can be confident you are getting the best Ingredients Probiotic cultures: Saccharomyces boulardii (275mg) Hydroxypropyl methylcellulose Each capsule guarantees 5 billion CFU.