Dr. Formulated Probiotics Once Daily Ultra 90 Billion CFU About Dr. Perlmutter: David Perlmutter, M.D., is an expert in the human microbiome, a board-certified neurologist, Fellow of the American College of Nutrition, America’s brain-health expert and #1 New York Times best-selling author. Dr. Formulated Probiotics Once Daily Ultra is a unique refrigerated “just one capsule a day” potent probiotic designed specifically to support a healthy microbiome with added powerful colon support.† Dr. Perlmutter created this unique formula with a high potency count (90 billion) of beneficial probiotics made from diverse strains, including L. acidophilus NCFM®, that are resistant to stomach acid and bile, for daily colon and immune system support.† Dr. Formulated Probiotics Once Daily Ultra 90 Billion CFU Benefits Potent colon and immune system support† 90 billion CFU; 15 probiotic strains Has a diverse probiotic blend, including L. acidophilus NCFM® for colon support† Non-GMO Project Verified & NSF Certified Gluten Free Has Arrive Alive Potency Promise—90 billion live probiotic cultures, to ensure your probiotics Arrive Alive and Stay Alive! Once Daily Ultra—a unique formula with a high probiotic count—90 billion—that is doctor-formulated especially for powerful daily colon and immune system support.†