Yes Medical stone is a kind of mottled bean gravel produced in valley streams. China was called Maifanshi in ancient times. It's true. It's named after its appearance is quite similar to that of barley and rice balls. Adding medical stone powder to traditional Chinese medicine, soaking in water for drinking or bathing, has the effect of fitness and longevity. After all, this thing belongs to health care products. Whether it is beneficial to health preservation will only be effective if it is used for a long time.