* Enhanced Series * Refrigeration Optional * Since 1947 * 100% Dairy, Lactose and Milk Free * (Contains No Casein) * 5 Billion Microorganisms Per Use * Dietary Supplement * Suitable for Vegetarians Solgar"s Advanced Multi-Billion Dophilus Vegetable Capsules are a source of L. acidophilus, B. lactis, L. paracasei and L. rhamnosus GG, beneficial microorganisms that naturally reside in the lower digestive tract. This product is formulated to protect these organisms from stomach acidity, helping to maintain a healthy intestinal flora.