Lactobacilli are a variety of beneficial, probiotic bacteria which occur naturally in a healthy vagina. BiopHresh introduces more than 5 billion cells of beneficial lactobacilli, which support the vaginal environment as the active homeopathic ingredients trigger healing of vaginal tissues irritated by infection. The entire process is what allows BiopHresh to effectively relieve recurring symptoms of BV. BiopHresh supports the vaginal biome with bacteria most closely associated with good health. There is ample research connecting lactobacilli with positive outcomes related to vaginal health. Those include: The Role of Lactobacillius and probiotics in maintaining vaginal health and Lactobacillus for preventing recurrent UTIs. We also recommend this article about the effectiveness of vaginal tablets containing lactobacilli and the ability of lactobacillus crispatus to inhibit the growth of BV-related bacteria.