From the databaseWhat the row says.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
Scope
Supplement × Supplement
Last verified
June 4, 2026
CautionInsufficient evidence
What is happening. Panax ginseng and Rhodiola rosea are both stimulating adaptogens often combined for fatigue and stress, but stacking them may overstimulate and disturb sleep.
Mechanism. Overlapping CNS-activating and HPA-axis-modulating effects can be additive, increasing arousal beyond what either produces alone.
Recommendation. If combined, use modest doses of each and take both earlier in the day. Watch for overstimulation, irritability, or insomnia and reduce one if it occurs.
Stack Score
How it moves the number.
Effect on the composite score
If both Panax Ginseng and Rhodiola Rosea are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).
The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.
SourcesSources, by evidence tier.
Every claim on this page is cited. PMIDs link straight to PubMed.
Reference material
1- 1Panossian A, Wikman G. Effects of adaptogens on the central nervous system and the molecular mechanisms associated with their stress-protective activity. Pharmaceuticals. 2010.Needs sourceNo link