Tiannan City also had several Chinese medicine shops, and Song Xiaodong went directly to the most famous one, Tong Ren Tang.
The herbal medicine selection here was the most comprehensive. Song Xiaodong managed to obtain everything he needed, although the age of the ginseng and such was much inferior, with the oldest being only twenty years.
Song Xiaodong didn't just purchase the highest quality twenty-year-old ginseng, he also bought some of other ages. He needed to verify something: to see if the difference in age would bring any variation in effects.
As for things like Thousand-Year Ginseng, they seemed to exist only in legends. There was no specific record in the herbal compendium about any medicinal properties changes between it and regular ginseng.
