Vital Planet - Flora Dog Capsules - High Potency, Multi-Strain Probiotic Formula for Dogs - 30 Capsules Contains 20 Billion live probiotic cultures in each capsule to help maintain your dogs immunity. When comparing probiotic options for your companion be sure to look closely at the number of live cultures in each serving. 10 Probiotic Strains are included in this comprehensive formula for maximum strain diversity, including dog specific strains Guaranteed Delivery - Delayed release capsules ensure that the capsule makes it through the stomach's acidic environment and are delivered to the small intestine Your dog has many unique probiotic strains in their digestive tract. FLORA DOG 20 BILLION combines 10 specific probiotic strains to more closely match your dogs digestive system and to provide maximum diversity. Powered by Prebiotics Prebiotics boost natural gut bacteria and help support healthy bacterial growth in the digestive tract.