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Head-to-head evidence comparison — which supplement is right for you?
Rhodiola Rosea wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
5 of 7 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mostly mechanism / observational
Top outcomes
Shared outcomes (2)
Outcomes where both Rhodiola Rosea and Tyrosine have evidence — compare verdict strength side-by-side.
200-600mg daily
Morning on empty stomach, Before stressful events
Standardized to 3% rosavins and 1% salidroside
500-2000mg
30-60 minutes before stressful activity, On empty stomach for best absorption
L-Tyrosine powder or capsules
1 week
1-2 weeks
1 week
First dose
30-60 minutes
30-60 minutes
30-60 minutes
Efficacy of Pharmacological Interventions in Milder Depression: A Systematic Review and Meta-Analysis
Neuropsychopharmacology reports (2025) · Meta analysis · n=1049
A meta-analysis found no significant difference in response rates between the two treatments (risk ratio [RR] = 0.96, 95% CI: 0.78-1.18) or dropout rates (RR = 1.08, 95% CI: 0.62-1.88).
Rhodiola rosea supplementation on sports performance: A systematic review of randomized controlled trials
Phytotherapy research : PTR (2023) · Systematic review · n=263
Acute supplementation with RR has a positive effect on endurance performance and rating of perceived exertion (RPE).
Modulation of the hypothalamic-pituitary-adrenal (HPA) axis by plants and phytonutrients: a systematic review of human trials
Nutritional neuroscience (2022) · Systematic review
For most phytonutrients, the effects of supplementation on HPA-axis activity in humans is unclear.
Tyrosine promotes cognitive flexibility: evidence from proactive vs. reactive control during task switching performance
Neuropsychologia (2015) · Rct · n=22
Tyrosine supplementation improved task switching performance under demanding conditions
Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands: A review
Journal of Psychiatric Research (2015) · Review
Converging evidence for cognitive enhancement under demanding conditions
Based on systematic reviews showing anti-fatigue effects. Most studies used standardized extracts (3% rosavins/1% salidroside). Effects observed for both mental and physical fatigue.
Based on single meta-analysis of 56 participants showing significantly higher blood tyrosine concentrations with supplementation. Clinical significance of elevated blood tyrosine levels for cognitive outcomes remains unclear. Most claimed cognitive effects lack direct study support in the provided evidence.
AI-estimated from published studies. Interpret as directional guidance.
Rhodiola Rosea has a higher evidence score (5.5/10 vs 6/10) and wins in 2 of 3 categories.
For build stress resilience, Rhodiola Rosea has a higher relevance score (92 vs 75).
No known interactions between Rhodiola Rosea and Tyrosine have been documented in our database. However, always consult a healthcare provider before combining supplements.