The natural ingredients in Flora Dog 20 Billion support digestive health. Probiotics help maintain your dog's immunity and a balanced intestinal flora. Includes prebiotics which help support healthy bacterial growth in the digestive tract. Daily use supports digestive health For occasional gas Helps maintain your dog's immunity Supports a balanced intestinal flora High Potency ProbioticsProbiotics are compared based on how many cultures are available in each capsule. Flora Dog High Potency probiotic provides 20 billion live cultures in each capsule from 10 different strains. Multi-Strain FormulaYour dog has many unique probiotic strains in their digestive tract. Flora Dog 20 Billion combines 10 specific probiotic strains to more closely match your dog's digestive system.