This advanced, dairy-free supplement from OptiBac contains 5 extensively researched strains, such as Lactobacillus acidophilus NCFM;, in an extra strength dose of 20 billion live microorganisms per capsule. This includes5 billion live cultures of L. acidophilus NCFM; alone, which is thought to be the most researched strain of acidophilus in the world.All of the friendly bacteria in OptiBac 'For every day EXTRA Strength' (formerly known as 'For daily wellbeing EXTRA Strength') are scientifically proven to pass through stomach acidity to reach the gut alive. What's more, this natural supplement is free from sugars, fats and flavourings that may be found in other food & drinks containing live cultures. As a company we value quality over strength. Whilst this product contains an impressive 20 billion microorganisms per capsule, it's the premium research behind the strains that we like to shout about It is important to note that this supplement, unlike many other live cultures products, does not require refrigeration due to improvements in freeze drying techniques and the strains within the product that are naturally robust to survive harsher conditions.Available in two pack sizes of 30 or 90 capsules of live cultures. Each capsule provides a count of over 20 billion natural bacteria.This is a food supplement and it is not intended to prevent, treat, nor diagnose any medical conditions.Product updatesPlease note: Titanium dioxide was removed from this product in January 2019. As a result of removing this ingredient, you can now see the product within the vegetarian capsule which is subject to natural variations in colour, from off white to pale yellow.The overall stability and viability of the product has not been affected in any way and we hope you like the more natural looking capsule.The small amount of the bacterial strain Bifidobacterim bifidumBb-02 in the original blend has also been removed, bringing the supplement in line with the exact formulation that has undergone more significant clinical research**, and which will be studied in further clinical trials