Dietary SupplementNatural relief.Helps you maintain a healthy urinary tract. Urinary tract infections are caused by certain bacteria. Studies have shown that cranberry helps block the attachment of bacteria to the urinary bladder wall. Only AZO CRANBERRY provides vitamin C and a probiotic in addition to cranberry to maintain urinary tract health and stimulate your immune system.* AZO CRANBERRY contains no milk ingredients, artificial dyes, colors, preservatives, flavors, yeast, wheat or gluten.