Shenjin Dan was called Shenjin Powder in ancient times. It is a secret recipe handed down from ancestors of the Kang family who lived in Hua County, Anyang, Henan Province. After 300 years of clinical research, the ancestors of the Kang family practiced medicine to benefit the world in the Central Plains. According to the Huaxian County Chronicle records: During the Qianlong period, the founder and developer Kang Demin used Shenjin Powder to cure the prince's chronic rheumatism for many years. It is as famous as Tong Ren Tang in the north and Hu Qing Yu Tang in the south. After liberation, the 6th generation descendant of the Kang family dedicated the secret recipe of "Shenjin San" to the country in order to benefit more people. It was included in the National Pharmacopoeia and renamed Shenjin Huoluo Pills. Therefore, the government established the state-owned Mingshan Pharmacy in the local area. Tang Pharmaceutical Factory specializes in the production of Shenjin Huoluo Pills. The sixth generation of Kang's family was therefore appointed as a senior pharmacist by the company. During the large-scale production process, the secret recipe of Shenjin Huoluo Pills was leaked, causing chaos in the production of many companies. The efficacy also appeared to be uneven, so Mingshantang Pharmaceutical Factory improved the process, from the clumsy big honey pill process in the past to a water pill preparation that can be quickly absorbed by the human body, increasing the efficacy to several times that of the past, and changed its name to now "Shenjin Dan" was registered with the National Trademark Office to protect and distinguish its formula and efficacy.