Quicksilver Scientific's Immune Charge Throat Spray is a highly bioavailable zinc-flavonoid ionophore designed to enhance cellular uptake of zinc to rapidly support first-line immune defenses in the throat. Our fast-acting spray combines zinc with quercetin, luteolin, and propolis to help increase intracellular zinc levels in the throat and upper respiratory tract. Perfect for travel, seasonal exposures, and year-round fortification of immune defenses.