Contains the doctor preferred probiotic for regularity (based on a IQVIA ProVoice survey of primary care physicians, Howaru B. Lactis HN019 is the doctor preferred probiotic strain for regularity as compared to other strains in leading probiotic brands, 52-week sales mulo, ending 11/3/2019; December 2019). Probiotic + prebiotics. Extra strength (compared to Fortify age 50+ 30 billion probiotic formula). 50 billion live probiotic cultures per capsule. 10 probiotic strains. Digestive balance. Colon health. Immune health. 50 billion active cultures, guaranteed! Innovative new bottle technology helps ensure this product will deliver 50 billion live probiotic cultures until the date of expiration without refrigeration to help balance your intestinal tract and support immune health. Targeted Delivery: Each capsule is resistant to the harmful effects of stomach acid and and distributes live cultures to the proper area of the small intestine and colon, right where they're needed most! Certified authentic tru-id. DNA authenticated probiotic strains. Researched probiotic strains. No artificial colors. Powerful probiotics for daily digestive & immune health for adults age 50+. Specially formulated for adults age 50+ with a proprietary blend of bifidobacteria and lactobacili probiotics, Fortify is a powerful ally with NCFM, HN019, Bi-07, BL-04, researched probiotic strains to support colon, digestive, and immune health. Lactobacilli cultures to work in your small intestine. Bifidobacteria cultures to support your colon. Formulated with 10 probiotic strains + prebiotics. Fortify age 50+ 50 billion CFU formula contains 10 probiotic strains designed to support gut diversity + prebiotics, a food source for good bacteria. One capsule, multiple benefits. Taking Fortify every day helps: Support colon health. Promote digestive balance. Support a healthy immune response. Potency of live cultures measures in Colony forming units (CFU). Guaranteed. Potency.