14
items 
Most clinical trials of any adaptogen. Strong evidence for stress, anxiety, sleep, and cortisol. KSM-66 and Sensoril are the standardized extracts with research.













Strongest evidence for physical and mental fatigue, cognitive performance under stress. Less research for anxiety than ashwagandha.













Long traditional use in Ayurveda and TCM. Emerging research; quality varies significantly. Less clinical evidence than ashwagandha/rhodiola.










Schisandra, eleuthero, maca, and cordyceps have traditional use and preliminary research. Evidence quality varies; more research needed.










