Airborne Elderberry Immune Support Effervescent Each Tablet contains the 1000 mg of Vitamin C with additional antioxidants (Vitamin A, Vitamin E, Manganese, Selenium, and Zinc) and a herbal combination that includes ginger and echinacea. It's simple and practical for your hectic lifestyle and that of your family, making it ideal for travel and carrying about. Your immune system puts forth a lot of effort for you.