Hyperbiotics Bifidobacterium Probiotic (formerly Pro-Bifido 50+) is uniquely designed to support a healthy microbiome as you age. Ideal for adults aged 50+, this formula uses science-backed strains of Bifidobacterium to provide comprehensive support for your immune function and colon and digestive health.^*   BIO-tract® delivery technology for optimal survivability: Our proprietary time-release delivery technology offers advanced protection for the probiotic organisms to ensure they reach deep into your intestinal tract, where they are most effective. This formula offers up to 15X more probiotic survivability than standard vegetarian capsules,‡ allowing us to offer superior results at a lower CFU.*   Probiotic strain type: Lactobacillus plantarum, Lactobacillus acidophilus, Bifidobacterium bifidum, Bifidobacterium breve, Bifidobacterium infantis, Bifidobacterium lactis, Bifidobacterium longum   Packaging and label may vary.   ‡BIO-tract® vs. instant release formulations under in vitro test conditions. ^Provides weight management support as part of a healthy lifestyle with a reduced-calorie diet and regular exercise.Probi BIO-tract® is a registered trademark of Probi®