High quality meets high strength with this daily supplement Provides 75 billion live microorganisms per capsule, guaranteed until end of expiry 3 extensively researched strains: B. lactis HN019, B. lactis Bl-04, and L. acidophilus NCFM® - the most researched strain of acidophilus in the world Does not require refrigeration, unlike many other high strength live cultures supplements Suitable for women during pregnancy, vegans and vegetarians, and gluten free for those with coeliac disease or an intolerance Contains no added sugars, artificial flavourings or colourings This premium quality, 75 billion live cultures supplement from OptiBac contains 3 extensively researched strains; L. acidophilus NCFM®, B. lactis HN019 & B. lactis Bl-04. Each capsule contains more than 16 billion live microorganisms of each strain, including Lactobacillus acidophilus NCFM®, thought to be the most researched strain of acidophilus in the world. All 3 strains in 'For every day MAX' have been studied in numerous clinical trials and are scientifically proven to reach the gut alive. This vegan supplement is a high quality option to those looking for a high strength natural bacteria product and offers a guaranteed 50 billion live cultures per capsule until the end of expiry. Billion Count Research shows that it's more important to look at the quality of the bacterial strains, before you look at the number of billions. The best live cultures supplements always list the strains of bacteria, and not just the species, because no strain is the same. Listing a strain shows transparency, and allows you to identify whether there is any research on it, what the quality of that research is and what potential benefits the strain may offer. It's best to take the product with the most researched, high quality strains, which are most suited to your needs. Whilst it's not always necessary to take very high-doses of friendly bacteria, as in some cases a strain can be sufficient at doses of just 1 billion CFU, if you're going to take a high strength live cultures supplement, then choose one containing some of the most researched strains in the world.