Advanced support for optimal digestive balance & healthy immune fuction. New, One-per-day formula: just take one probiotic per a day to contribute to digestive, immune, and upper respiratory health; No.1 Multi-Strain probiotic: Nature's Bounty Ultra Strength probiotic 10 contains 10x diversity of probiotic strains to supplement the natural diversity of your microbiome.; 20 billion live cultures: guaranteed upon date of expiration, Nature's Bounty Ultra probiotic 10 serves up good bacteria to your digestive system.; Advanced support: the diverse probiotic strains help your body and contribute to digestive, immune and upper respiratory health; Over 20 years of research: contains clinically studied strains that are supported by years and years of clinical research. Gluten Free and vegetarian friendly: Nature's Bounty Ultra probiotic 10 are made for everyone.;