Quercetin is a plant pigment (flavonoid). It is found in many plants and foods, such as red wine, onions, green tea, apples, berries, Ginkgo biloba, St. John's wort, American elder, and others. Buckwheat tea has a large amount of quercetin.
Orders will be processed and shipped within 1-3 business days of receipt. Delivery time may vary depending on destination of the order. Because we use ground service for our deliveries, orders shipped to the west coast may take several days.