Ren-Aid is an all-in-one capsule with high-strength D-mannose and cranberry extract, plus zinc, cinnamon, oregano, and bamboo leaf. This unique formula supports urinary tract health and boosts the immune system. Traditional botanicals and probiotics promote a healthy gut and urinary tract environment. Elevate your wellness with Ren-Aid. Beneficial for: Urinary tract health UTIs and rUTIs Cystitis Women Post-menopause Gut health / digestion The immune system Inflammation Antioxidant levels Skin Collagen production Mobility What is D-mannose? D-mannose is a simple sugar (a monosaccharide) naturally found in certain plants and found in many fruits (such as cranberries and pineapples). It is related to glucose. It also occurs naturally in some cells in the human body. Other names for D-mannose are: Carubinose, D-manosa, Mannose and Seminose.