Dietary Supplement. Your Second Line of Defense Immuno-Viva™ Core is the first line of defense against the problems of modern living. But sometimes you need an added Boost. Loaded with polyphenols and phyto-nutrients, Immuno-Viva Boost works synergistically with Core to provide even better heart, brain and immune support and a balanced inflammatory response. Physician formulated.* *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.