Shennong's Classic of Materia Medica divides traditional Chinese medicine into three categories: upper, middle and lower, namely, upper medicine, traditional Chinese medicine and folk prescription.

Nourish life with medicine, nourish nature with traditional Chinese medicine, and treat diseases with medicine. & ltbr & gt& ltbr & gt top-grade drugs contain a large number of nourishing, strong and anti-aging drugs. Among them, ginseng, astragalus, yam, ganoderma lucidum, atractylodes macrocephala, licorice, ginseng and so on. Warming tonics such as cistanche deserticola, Eucommia ulmoides Oliv., Radix Dipsaci, Radix Morindae Officinalis and Semen Cuscutae, nourishing yin drugs such as Polygonatum odoratum, Dendrobium nobile, Radix Asparagi, Radix Ophiopogonis, Fructus Lycii, Fructus Ligustri Lucidi, Radix Adenophorae, Carapax et Plastrum Testudinis, and nourishing blood drugs such as Rehmanniae Radix and Achyranthis Radix.