Vitamin E Essential for the maintenance of a healthy immune system as it protects the thymus gland and circulating white blood cells from damage. Vitamin E is particularly important in protecting the immune system from damage during times of oxidative stress and chronic viral illness. Several studies have suggested that vitamin E supplements can help to boost immune function. Zinc Considered one of the most important nutrients for the immune system as it is crucial to proper white blood cell development and maintaining immune system integrity. Vitamin C Long credited with boosting immunity, vitamin C helps support the production and function of white blood cells and protects them from oxidation. Vitamin C requirements are raised when the immune system is under stress. Vitamin C may reduce the duration of the common cold and also the severity of symptoms such as sneezing, coughing, and sniffling. Astragalus One of the most extensively researched ancient Chinese herbs, astragalus has been used for centuries in traditional Chinese medicine usually to support and enhance the immune system. It is also used as a traditional remedy for colds. Astragalus helps strengthen the immune system and acts as an immunostimulant Aronia Melanocarpa A native to the U.S. Pacific coast, aronia melanocarpa is an extract of the black chokeberry. It has been used by Native Americans for a variety of traditional health applications, and has one of the highest concentrations of antioxidants compared to other berries and antioxidant fruits.Aronia melanocarpa is a powerful antioxidant that helps regulate the immune function of white blood cells. More vitamin-C than 12 oranges! Kick your immune system into high gear with the power of Activate-C Immune Complex. Each delicious glass contains 1200 mg of vitamin C. That’s more vitamin C than 12 large oranges for superior immune support. Based on the USDA National Nutrient Database for a large, raw orange. How do you use Activate? When you feel your defenses need a boost, supercharge your immune system by mixing one packet with 6–8 fl. oz. water or your favorite non-carbonated beverage. Stir or shake to dissolve. May be mixed with hot water if desired. Drink one packet daily for up to three weeks at a time.