Nine Steams and Nine Sun Dried

Historical records indicate that the cultivation of Rehmannia has a history of nearly three thousand years. In the Compendium of Materia Medica, Rehmannia is described as follows: “The Rehmannia from Jiangsu and Zhejiang receives the Yang energy of the south; although its quality is smooth and shiny, its potency is weak; while that from Huaiqing … Read more