I read the ingredients of two manufacturers, which may be related to the production process, but there is also the biggest reason. Personally, I think it is the ingredient of medicine. Tongrentang's qi is ginseng, and Foci's qi is codonopsis pilosula. There is a big difference between the two. Ginseng has a strong effect of invigorating qi, so you may be more suitable for ginseng. But not everyone is suitable for ginseng. Some people get angry easily after eating it. For example, I get angry easily.