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 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!