Immune Enhancing Herbs: Ethnobotanical and Scientifically Studied Plant Medicines Unlike antibiotics, immune enhancing herbs work by nourishing white blood cells, protecting them from toxins, and thereby enabling them to be more active. They are sometimes regarded as potentiators, but they promote macrophage activity by giving the patient what is needed in order to create more efficient and dynamic white blood cells. Immuneformulas.com~Site InfoWhoisTrace RouteRBL Check