Innate Immune SupportPromotes a healthy cellular immune response to support natural immunity Innate Immune Support is designed to promote a cell mediated immune response, including NK cell and macrophage activity, and may be indicated for the enhancement of natural defenses and mucosal health. Astragalus contains a variety of active components, including saponins and flavonoids, and therefore has long been used in herbal medicine to maintain immune and cytokine balance.