Kidney tonic herbs such as deer antler, deer antler gelatin, eucommia, balsam pear, Epimedium, Cistanchis, bone marrow, dog's spine, immortelle and other kidney tonic herbs have the effect of warming kidney yang and benefiting yang jing (yang jing in yin jing),

Cooked dihuang, made shouwu, Chinese wolfberry, tortoise shell gelatin, chasteberry and other herbs have the effect of nourishing kidney yin and benefiting yin jing (yin jing in yin jing).

They are used for the purpose of tonifying the kidneys when they are deficient in kidney jing. When the essence should be divided into yin and yang, choose the appropriate Chinese herbs to supplement.