Primadophilus Optima Digestive Balance is a shelf-stable probiotic formula designed to support digestive balance and immune health.* Provides 50 billion CFUs / active cultures per capsule Contains 100% HDS (Human Digestive Strains) Probiotics Multiple strains of Lactobacilli and Bifidobacteria including researched strains NCFM®, Bl-04® and Bi-07® to help fortify and balance intestinal microflora and support immune health* Delayed-release, vegetarian capsules Potency guaranteed through expiration date Shelf-stable / no refrigeration required Once daily100% HDS Probiotics™Primadophilus Optima Digestive Balance contains 100% HDS Probiotics (human digestive strains). HDS Probiotics are probiotic strains that were originally isolated from the natural human intestinal microbiota as opposed to being isolated from animals, plants, dairy or soil sources. Today these strains are grown and fermented in a controlled environment by some of the most respected probiotic producers in the world.Guaranteed Potency The probiotic potency (CFUs) claimed on the label is guaranteed until expiration, not at time of manufacture like some probiotic products.Targeted Release™Made with delayed-release capsules that resist stomach acid better than standard capsules to help probiotics survive stomach acid so they are delivered to the intestine where they are needed most. Directions Take 1 capsule daily. May be taken at any time, with or without food. If taking any medications, consult a healthcare professional before use. Notes Keep out of reach of children.Shelf Stable - No RefrigerationBl-04® and Bi-07® are trademarks of DuPont. In the USA, NCFM® is a trademark of the North Carolina Agricultural Foundation, Inc. NCFM®, Bl-04®, Bi-07® are used under license.