Optibac Travel Abroad 20s. OptiBac Travel Abroad is a supplement providing well-researched strains of live cultures, including Lactobacillus acidophilus Rosell-52 and Saccharomyces boulardii, which have been tested to ensure survival through the stomach acids and bile salts to reach the intestines alive.. Consuming unfamiliar food and drink in foreign environments may disrupt the fragile balance of good and bad bacteria in your gut, which may lead to symptoms such as diarrhoea.. The particular strains in this blend have been scientifically proven to survive at higher temperatures, and the packaging makes it a suitable travel companion for destinations with hotter, more humid climates than the UK.. OptiBac Tavel Abroad may be taken before, during and after travel abroad and is a travel essential for far-flung destinations such as Egypt, India and Thailand.. What's more, Travel Abroad is also free from sugars and artificial colourings which may be found in other foods or drinks containing live cultures.. Choose Travel Abroad, as this natural supplement provides a shelf-stable and cabin-friendly formula of live cultures ideal for your travels.