Dr. Formulated Probiotics Once Daily Womens is a unique just one capsule a day shelf stable probiotic. Once Daily Women's is a specifically designed vegetarian supplement with a high probiotic count to support a healthy microbiome and womens specific health needs. Dr. Perlmutter created this unique formula with a high count of beneficial probiotics made from diverse strains, including Lactobacilli and Bifidobacteria, that are resistant to stomach acid and bile, exclusively for womens digestion, immune system health. David Perlmutter, M.D., is an expert in the human microbiome, a board-certified neurologist, Fellow of the American College of Nutrition, Americas brain-health expert and #1 New York Times best-selling author.