Not expensive. Dipsacus asperoides is a Chinese herbal medicine, also known as Dipsacus asperoides, also known as Chuandan. It is the root of perennial herb Dipsacus asperoides, so it is named because it can "continue to break bones". In JD.COM, the price of Dipsacus asperoides is between 33 yuan and 124 yuan, which is not high. The price of more precious medicinal materials such as ginseng can reach above 500 yuan.