Bio-Kult Pro-Cyan is scientifically developed to target your urinary tract, as well as your digestive system. Our advanced multi-strain formulation contains vitamin A which contributes to the normal function of the immune system and the maintenance of mucous membranes which can be found lining many areas of the body including the urinary tract. It also contains cranberry extract to give you a minimum of 36mg of important Proanthocyanidins (PACs).PACs are the important active compounds in cranberry thought to target pathogenic urinary tract microbes. Supporting you when it's time to go.