Comparison
Ashwagandha vs Panax Ginseng (Korean)
Ashwagandha
Withania somnifera, the most clinically validated herbal adaptogen for stress and anxiety. Reduces serum cortisol by roughly 28% at 600 mg/day over 8 weeks. Modest evidence for sleep quality and testosterone in men. Choose the KSM-66 extract for the best-studied form.
Panax Ginseng (Korean)
Traditional Chinese/Korean adaptogen. Supports energy, cognition, and immunity. Ginsenosides are the active compounds.
| Field | Ashwagandha | Panax Ginseng (Korean) |
|---|---|---|
| Category | adaptogen | adaptogen |
| Dose range | 300–600mg | 200–400mg |
| Half-life | 6h | — |
| Onset | — | — |
| Evidence | EVIDENCEA | EVIDENCEB |
| Safety | ●●●●● | ●●●●● |
| Legal (US) | USOTC | USOTC |
| PubMed refs | 650 | 1100 |
The comparison in plain English
Auto-generated from dataAshwagandha and Panax Ginseng (Korean) are both in the adaptogen category respectively. Ashwagandha Withania somnifera, the most clinically validated herbal adaptogen for stress and anxiety. Panax Ginseng (Korean) Traditional Chinese/Korean adaptogen.
Bottom line
Ashwagandha (evidence A, safety 5/5) has a weaker evidence base than Panax Ginseng (Korean) (evidence B, safety 5/5). Ashwagandha has the slightly cleaner safety profile. For users new to either, the higher-evidence option is the safer first try.
Choose Ashwagandha if
Ashwagandha is the better fit when your goal aligns with its mechanism (Withanolides modulate GABA-A receptors and blunt the HPA-axis cortisol response) and the dose range (300–600mg) suits your protocol. Half-life is 6h.
Choose Panax Ginseng (Korean) if
Panax Ginseng (Korean) is the better fit when your goal aligns with its mechanism (Ginsenosides (the Panax-specific saponins) modulate HPA-axis cortisol response, support nitric oxide signalling in cerebral and peripheral vasculature, and have direct neuroprotective effects on hippocampal neurons) and the dose range (200–400mg) suits your protocol. Half-life is —h.