Probiotic plus contains 9 strains of friendly bacteria in an easy to take capsule form probiotic plus is designed to help balance the intestinal flora of both adults and children probiotic plus contains 9 different probiotic strains plus a small amount of the prebiotic fos there are many more environmental factors prevalent today which upset the eco balance in our intestines making it beneficial to have more strains of the needed probiotic bacteria available in supplemental forms