Natural Factors Acidophilus & Bifidus 10 Billion Active Cells Double Strength 180 CapsulesIngredients Medicinal Ingredients Each capsule contains: 10 billion active cells* of the following specially cultured strains of probiotics: Total bacterial culture 10 billion cfu Lactobacillus rhamnosus (HA 111) (whole cell) 80% 8 billion cfu Lactobacillus acidophilus (HA 122) (whole cell) 10% 1 billion cfu Bifidobacterium bifidum (HA 132) (whole cell) 10% 1 billion cfu cfu: colony forming units Non Medicinal Ingredients Lactose, whey powder, goat