Deva™ is proud to offer its new high-quality product that contains 500 mg of quercetin + 25 mg of zinc along with elderberry, echinacea and oregano herbal extracts. Quercetin is a flavonoid pigment that is present in many fruits and vegetables. Quercetin appears to have the ability to chelate zinc ions and act as a zinc ionophore in the body* zinc is an essential mineral that is involved in various aspects of cellular metabolism. It is also required for the catalytic activity of approximately 100 enzymes. A daily intake of zinc is required to maintain adequate levels because the body does not have a specialized zinc storage system* deva vegan quercetin 500 mg is available for those who seek a quality quercetin product that is combined with 25 mg of zinc and, various botanical extracts such as elderberry and echinacea for their perceived benefits.