Digestive Supplement* *This supplement contains strains proven to survive to reach the digestive system and is designed to complement your body's natural gut bacteria. A premium, high strength daily supplement, containing 3 extensively researched strains of friendly bacteria, including Lactobacillus acidophilus NCFM® - the most researched strain of acidophilus in the world. - This supplement was previously OptiBac 'For every day Max' - Per Capsule - 75 Billion Live Cultures (75 x 10^9)