Probiotics contain a blend of Lactobacillus Acidophilus, Bifidobacterium Animalis Lactis, Lactobacillus Rhamnosus, Bifidobacterium Bifidum, Bifidbacterium Longum, and Streptoccus Thermophiles. As well as FOS from inulin (a prebiotic) in Maltodextrin and Magnesium Stearate.
They take 20 minutes to melt insuring it has passed from the stomach to the instines so as not to be destroyed by stomach acid. Excellent for rebuilding the flora of the intestines.
5 Billion is recommend for children 1 a day away from food, Adults 2 2x a day away from food. The 20 Billion is for Adults and 1 a day away from food.