Fortify™ Optima® Adult 50+ is a shelf-stable probiotic specially formulated to support colon health with a higher ratio of Bifidobacteria to help replenish Bifidobacteria levels that tend to decline with age.* Has a higher ratio of Bifidobacteria to support colon health* Provides 50 billion CFUs / active cultures per capsule Contains 100% HDS Probiotics™ (Human Digestive Strains) Multiple strains of Lactobacilli and Bifidobacteria including researched strains NCFM®, Bl-04® and Bi-07® Delayed-release, vegetarian capsules Potency guaranteed through expiration date Shelf-stable / no refrigeration required Once daily