TCM has a 5,000 year history in China and one of the largest and most respected TCM companies in China is the Buchang Group from Xi 'an ( home of China 's famous Terra Cotta Warriors ) . Dr. Zhao Buchang , founder of the company , invented the VitaMind Cap ( TM ) and has fully tested and verified its effectiveness in more than 250 clinical trials and case studies . It was approved by China 's State FDA in 1993 .