Healthy bacteria are required to support both the digestive tract and the urogenital tract in women. Proven Probiotics' Women's Lactobacillus and Bifidus with Cranberry, contains Lab4, the most comprehensively studied group of friendly bacteria along with Lactobacillus gasseri, a bacterial strain with forms a normal part of the vaginal flora. This product also contains cranberry extract and vitamin B6, which contributes to the regulation of hormonal activity.