Emergen-C ImmunePlus features an enhanced immune support formula that’s packed with key nutrients to fortify your natural defenses. One serving provides 1,000 IU (25 mg) Vitamin D and 1,000 mg Vitamin C – more than 10 oranges. Emergen-C ImmunePlus also contains a proprietary complex with beta-glucans and arabinogalactans, plus B Vitamins and electrolytes. Emergen-C ImmunePlus powder drink mix is caffeine-free and made with natural, real fruit flavors with no artificial sweeteners. Mix with 4 to 6 ounces of water for a fizzy, fruity boost of goodness.