The two core products of Guangyuyuan, Guilingji and Dingkundan, are known as the treasures of Chinese medicine culture. These two products are national secret prescriptions, which not only show the profoundness of Chinese medicine, but also were rated as national intangible cultural heritage in 2008 and 20 1 1 respectively. Guilingji and Dingkundan both originated from the secret recipe of the court. After hundreds of years of practice, their remarkable curative effects have been widely recognized. Relevant royal approvals and detailed historical records of many emperors further highlight the quality of these two products. Guangyuyuan and its products also enjoy a high reputation in the field of international traditional medicine, and have won many international awards and national honors.