Vet’s Best Probiotic Soft Chews for dogs helps to support and maintain digestive health, which is a critical component of your dog’s daily comfort and happiness, with 1.5 Billion CFU (Colony Forming Units) and active cultures of 6 strains of bacteria in a once-a-day soft chew supplement. Vet’s Best Probiotic Soft Chews provide a stabilized source of bacteria to proactively maintain your dog’s wellness by supporting digestive system health through maintenance of proper gastrointestinal balance to help support a normal healthy appetite and proper digestion. Each daily soft chew contains Bacillus Subtilis and Bacillus Licheniformis, two highly beneficial bacteria strains, coated with a patented technology to keep them stable until they enter the digestive tract. 30 ct.