What are probiotics There are over 3.8 trillion bacteria in the body, mainly residing in the intestines, but the benefits of probiotics, or friendly bacteria, extend far beyond the gut (Sender R et al. PLoS Biol. 2016;14(8):e1002533). The gut plays an active role in immune health. Some people may think probiotics work by directly impacting the gut composition, but it's actually the interactions of the probiotics and the compounds they produce with immune cells, food and nutrients, and other microorganisms in the gut that impact health (ISAPP Infographic: Probiotics: Dispelling Myths, 2018). Unhealthy diets, stress, and other factors can disrupt the body's balance of good and bad microorganisms and affect digestive, urogenital, and immune health. A quality probiotic can help promote a healthy microbial balance to support multiple aspects of health. Metagenics UltraFlora Women's: Targeted probiotic support for feminine health UltraFlora Women's is a unique blend of probiotics taken orally to help maintain a healthy vaginal microflora and support urogenital health. The safety and efficacy of this probiotic combination for women's health is supported by laboratory research and clinical evaluation. It features a 50:50 probiotic blend of Lactobacillus rhamnosus GR-1 and Lactobacillus reuteri RC-14 with a vegetarian capsule form. RC-14 and GR-1 are trademarks of Dupont.