Nuun Immunity is immune system support hydration loaded with botanicals, minerals, electrolytes, Antioxidants, and Anti-inflammatories for a hydrating helping of ongoing immune support. Each Nuun Immunity tube comes with 10 individual tablet servings that can be taken up to 3 times per day. Helps support your immune system with essentials like Vitamins A, C, D, & E, plus Zinc and Selenium.