Acute Immune Boost has been designed specifically for rapid support of the immune system with high quality nutrients and botanical extracts to quickly support optimal functioning. This potent blend contains top nutrients involved in positive immune function including Vitamins A, C, D and zinc. Two top research-supported herbs for immune health, elderberry and Andrographis complete this synergistic formula.* • Provides potent immune support • Supplies Andrographis and Elderberry in research-backed amounts for acute immune support. • Aids protection by supplying needed nutrients for optimal immune response.