Bio-Kult Pro-Cyan Protexin is a triple-action formulation designed to support the health of your gut bacteria. Lifestyle changes, stress, and certain medications can sometimes deplete beneficial bacteria, allowing E.coli to become established and cause damage to the mucous membranes lining the urinary tract. This product combines cranberry extract, two specifically selected live bacteria strains, and vitamin A, which contributes to the normal function of the immune system and the maintenance of mucous membranes. The total bacteria count remains viable until the end of the shelf life. If you are taking any medications or have a medical condition, please consult your doctor before taking this supplement. It contains soya and milk, used in the fermentation process, but the content of milk is at a level that would not affect lactose intolerant sufferers. This product is gluten-free.