The old Beijing wormwood foot patch is a product that can detoxify and improve the body's heavy moisture by accelerating the body's metabolism. This product mainly acts on the soles of our feet. Generally speaking, the old Beijing wormwood foot patch can't be attached to the navel, because there are many body reflex zones on the soles of the feet, which can play a better role, and the skin on the soles of the feet is thinner and better absorbed. If it is attached to the navel, it may not have the due effect, but it is also possible.