Triple Action Formula for Powerful Digestive & Immune Support† If you’re a seasoned probiotic user looking for a powerhouse formula, you’ve hit the trifecta of digestive and immune system health† with Dr. Formulated Probiotics 100 Billion. Labeled “Extra Strength”, these probiotics are special since they not only contain 100 Billion CFU of diverse strains per serving, but they also provide a prebiotic blend to promote the growth of good bacteria—super important to support a healthy microbiome.† Dr. Formulated Probiotics 100 Billion also contains an exclusive postbiotic blend to support Bifidobacteria growth—also the good stuff. All of this means that you get powerful triple-action daily support for digestive and immune system health—all in one, easy-to-swallow capsule per day!†