Hello, the medicinal materials of Siwutang are not expensive. Generally, the best ones don't exceed a pack of 10 yuan, and the price is very cheap. I used to use Ejiao to replenish blood, but the chance of buying this thing is small, and I am worried about being fooled. I just learned that Siwutang is better than Ejiao, and the price is less than one-tenth of Ejiao's 10, so I have always insisted on using Siwutang.