Lamberts® Acidophilus extra 4 contains 4 billion friendly bacteria. We use the beneficial lactobacillus acidophilus and bifidobacterium strains of bacteria. Lamberts® was one of the first companies to produce live bacteria capsules in the uk (over 30 years ago) and we have developed expertise in this area. To ensure proven targeted release for acid-sensitive ingredients such as live bacteria we have: specifically used delayed release capsules a special desiccant built into the tube wall of the pot refrigerated storage conditions until despatch vegetarian capsules made of plant-based cellulose with 3 times lower moisture content than typical gelatine-based ones. Lamberts quantity – 30 capsules acidophilus extra 4.