Panax Ginseng (Korean Ginseng)
Panax Ginseng is an adaptogenic root known for enhancing cognitive performance, reducing fatigue, and supporting immune function. It is particularly effective for improving erectile function and has moderate evidence for boosting cognition and endurance.
Evidence last reviewed: 20 Apr 2026
The evidence for Panax Ginseng is moderate, particularly for cognitive function and erectile improvement. However, the immune support claims are less robust, indicating a need for further research in that area.
Cognitive functionAdults with cognitive impairment · Systematic reviewModerate
Ginseng was found to have a positive effect on cognitive function, particularly in improving memory and attention.
Immune functionGeneral population · Systematic reviewLow
Ginseng has been used historically to support immune function and recovery from illness.
Fatigue reductionPatients with rheumatic diseases · RCTModerate
Korean Red Ginseng significantly reduced fatigue in patients with rheumatic diseases.
Erectile functionMen with erectile dysfunction · Systematic reviewModerate
Ginseng was found to improve erectile function in men with erectile dysfunction.
Forms & usage▾
Take 200-400 mg daily, preferably in the morning.