Oregacillin is the most powerful oregano and spice extract available for maximum immune support. Oregacillin is made from natural herbs and spices, including proprietary P73 wild oregano blend. Georgetown University and independent laboratory research prove that Oregacillin kills a wide range of germs, including bacteria, viruses, and fungi. It is also a powerful antioxidant which helps protect all cells from toxic damage. The antioxidant properties or Oregacillin are far more potent than vitamin E.