American Ginseng (Panax quinquefolius)
Characterized as yin, which is cooling, soothing and restoring. Thus, it is traditionally believed to be ideal for the yang-excessive – those who are constitutionally hot: the active, agitated, and stressed – and for physical and emotional stress. High-grade four-year-old whole roots are used.
Warning: Concurrent use with stimulants is not advised, as overstimulation may occur in susceptible persons.