Nature's Way Fortify Optima Women delivers 50 billion live probiotic cultures specifically formulated for women's digestive wellness. This advanced formula combines 21.1 billion bifidobacteria with 28.8 billion lactobacillus across 7 clinically-researched strains, all derived from human digestive sources rather than plants, soil, animals, or dairy. The potency is guaranteed until expiration when properly stored, ensuring consistent microbial viability. Vegetarian-friendly and scientifically designed to support optimal gastrointestinal balance and digestive function.