Heightens Immune Response at Onset Ideal for First Day Challenges Use this product to: Bolster your immune and respiratory systems on the first day of a challenge Bring more white blood cells to area of need and increases their aggressiveness against challengers How it benefits you: Complete quick onset formula delivers powerful herbal constituents that activates the immune system Contains Andrographis, Echinacea, Elder berry, and other powerful herbs that support a quick immune system response against seasonal challengers