Natures Aid PRO-30 Max is a super strength daily probiotic containing 8 strains of bacteria. Each daily capsule contains a guaranteed 30 billion live organisms, using 8 extensively researched strains of bacteria, including 4 strains of Lactobacillus. STABILITY Natures Aid PRO-30 Max bacteria have been micro-encapsulated to enhance stability and guarantee 30 billion live bacteria per capsule at the end of the shelf-life. Refrigeration is optional. Directions:Take 1 capsule per day. Do not exceed the recommended intake Ingredients:Microcrystalline Cellulose, Probiotic prep (Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus casei, Lactobacillus reuteri, Bifidobacterium bifidum, Bifidobacterium lactis, Bifidobacterium longum, Streptococcus thermophilus, Maltodextrin), Cellulose, Anticaking Agents (Silicon Dioxide, Vegetable Source Magnesium Stearate).