* U Natural Hydration * All Natural Nutritional Beverage Supplement From The People at Nuun U Natural Hydration Goji-berry Green Tea is a lightly flavored hydration drink that delivers essential electrolytes and vitamins in a convenient effervescent tablet, without added sugars or artificial sweeteners. Vitamins to keep you going strong: Each tablet contains Vitamin A, Vitamin C, and a variety of B Vitamins as well as other essential elements to boost immunity and support healthy activity. Essential electrolytes for fluid balance: Each tube contains 16 tablets. Each tablet makes 16 ounces of U Hydration and delivers 180 mg Sodium / 77 mg Potassium / 20 mg Magnesium.