Bio-Kult® Pro-Cyan® is a scientifically proven triple-action formula with cranberry extract , which works by preventing E.coli from adhering to the walls of the urinary tract, two Protexin probiotic strains (1.2 billion per gram) specifically selected for their antimicrobial activity against E.coli and Enterococcus Faecalis, and vitamin A (320 IU) to strengthen and protect the urinary tract mucosal epithelium, maintain Lactobacillus balance, and stimulate the immune system. * Three independent clinical studies have found that proanthocyanidins (type A PACs) are much more active than plain cranberry juice and as effective as some antibiotics in preventing recurrent urinary tract infections. Suitable for children and pregnant women (consult your doctor or pharmacist before taking any dietary supplement). Contains traces of soy and milk, at a level that will not affect people with lactose intolerance. Gluten free.