Product Details + Physician Formulated: Highly absorbable Zinc and Vitamin C boost, defend, support, maintain, and enhance your immune system. Essential: B vitamins, Astragalus, and Echinacea assist in boosting immune defense and promote energy. Effective: Wellmune is absorbed by gut cells before it travels and attaches to immune cells to give them a performance boost. Values: Non-GMO, vegetarian, and gluten-free, we ensure our products purely promote overall health and wellness.