IN DEMAND! NEW SUPERSTAR VITAMIN! Alive Vitamins™ Super Quercetin 600mg (highest potency) Quercetin is a plant called flavonoid from the flower of the Japanese pagoda tree. It has antioxidant and anti-inflammatory effects which might help reduce inflammation, control blood sugar, help prevent heart disease, help fight allergies and inflammation, and regulate the histamine response, support healthy sinus, respiratory and immune system. Contains Vitamin C and Zinc. Quercetin Is the NEW STAR of all vitamins since 2020!