Cystex Urinary Health Maintenance Cranberry Prebiotic is designed to be taken as needed when your body is more prone to UTIs. Cystex Urinary Health Maintenance is formulated with multiple powerhouse urinary health ingredients including prebiotics that help prevent bacteria from sticking to the urinary tract and bladder walls and stimulates the growth of good bacteria. Formulated with multiple powerhouse urinary health ingredients: Cranberries Vitamin C D-Mannose Bromelain FOS & (Fructooligosaccharides). Cystex Urinary Health Maintenance is lactose- and gluten-free and is just one calorie per tablespoon. Cystex: Urinary health made easy.