The perfect combination: Quercetin itself is an antioxidant and has immune-boosting properties. The synergistic combination of Quercetin and Zinc makes for a powerful, active formula ready to provide occasional seasonal support and a unique antioxidant profile Scientifically Customized Dosing: One small veggie cap contains 1000 mg of Quercetin and 40 mg Zinc --A scientifically tailored dose that provides immune, antioxidant and cardiovascular benefits.