Ginseng is a legendary tonifier first written about during the Sui Dynasty of China (580-601 A.D.). In traditional Chinese herbalism it is rarely used alone, but rather is combined with herbs considered to assist and augment its tonifying actions. Planetary Herbals Ginseng Revitalizer™ is based on a classic formula that has been in continued use since 1078 A.D. This dynamic combination is designed to support energy levels without the use of stimulants.