OptiBac Probiotics 'For travelling abroad' is especially for those travelling to foreign environments such as India, Egypt and Mexico. It contains four high quality and well-researched strains of live cultures, including Lactobacillus acidophilus Rosell-52 and Saccharomyces boulardii, which are proven to survive to reach the gut alive. Suggested for daily use during travels and a few days prior, each capsule provides 5 billion live microorganisms guaranteed until end of expiry. This supplement has been shown to survive at higher temperatures and in more humid climates than that of the UK, making it a suitable travel companion. OptiBac Probiotics 'For travelling abroad' is suitable for vegetarians, and is also gluten free. Each pack contains 20 capsules. Unlike many products containing live cultures, this supplement does not require refrigeration. All OptiBac Probiotics strains are thoroughly researched and documented, so you can be confident you're getting a high quality supplement that's right for you.