Puur Cranberry is a food supplement that helps to maintain a healthy bladder and urinary tract. Cranberries are very sour berries with a red colour created by proanthocyanidins. When your pet eats these berries, the acidification that occurs in the bladder creates an environment in which unwanted bacteria can't grow. For an optimal effect, it's important to feed your pet the right dosage of cranberries. There is about 1kg extract from 25kg cranberries in PUUR Cranberry. This means that there's a very high concentration in the product that will have a beneficial effect on your pet's urinary health. Thanks to a high level of vitamin C in the product, the urine is made even more acidic which makes it less appealing to bacteria.