Natures Way - Fortiy Optima Women's 50 Billion - 30 Veggie Capsules - NPN: 80050734 -- Probiotics are good bacteria that help support gastrointestinal health. Nature's Way Fortify Optima Women is formulated with high ratio of lactoabacilli including: 21.1 billion bifidobacteria and 28.8 billion lactobacillus. It contains 100% HDS (Human Digestive Stain) probiotics - not from plant, soil, animal or dairy sources. Fortify Optima's 50 billion potency of live probiotic cultures is guaranteed until product expiration date when stored under recommended conditions. Nature's Way Fortify Optima Women's Probiotic is vegetarian and contains 7 probiotic strains.