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Head-to-head evidence comparison — which supplement is right for you?
Phosphatidylserine and Rhodiola Rosea are closely matched across evidence, studies, and safety.
Verdict
Mostly mechanism / observational
1 of 1 studies with measurable effects showed benefit.
Top outcomes
Verdict
Probably helps
4 of 6 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Phosphatidylserine and Rhodiola Rosea have evidence — compare verdict strength side-by-side.
100-300mg daily
With meals, Evening or post-workout for cortisol
Soy or sunflower-derived phosphatidylserine
200-600mg daily
Morning on empty stomach, Before stressful events
Standardized to 3% rosavins and 1% salidroside
4-12 weeks
2 weeks
4-8 weeks
1 week
1-2 weeks
1 week
First dose
Effects of a food supplement containing phosphatidylserine on cognitive function in Chinese older adults with mild cognitive impairment: A randomized double-blind, placebo-controlled trial
Journal of affective disorders (2025) · Rct · n=190
A total of 190 participants (mean [SD] age, 67.95 [5.62] years; 70 (36.8 %) male and 120 (63.2 %) female) were randomized to the placebo group (n = 95) and intervention group (n = 95).
Dynamic release of extracellular particles after opening of the blood-brain barrier predicts glioblastoma susceptibility to paclitaxel
Nature communications (2025) · Rct
Thus, our study introduces an efficient microfluidic platform for the capture of circulating GBM EVPs and demonstrates that release upon BBB opening is predictive of outcomes following paclitaxel treatment.
Prognostic potential of lipid profiling in cancer patients: a systematic review of mass spectrometry-based studies
Lipids in health and disease (2024) · Systematic review · n=38
In conclusion, the potential for developing lipidomics in cancer prognostic prediction was demonstrated.
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.
Based on RCT in 190 Chinese older adults with mild cognitive impairment and systematic review of neuronutrients. Limited by small number of direct studies and population-specific findings.
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.
AI-estimated from published studies. Interpret as directional guidance.
Both Phosphatidylserine and Rhodiola Rosea are closely matched — the best choice depends on your specific health goals.
For build stress resilience, Rhodiola Rosea has a higher relevance score (92 vs 72).
No known interactions between Phosphatidylserine and Rhodiola Rosea have been documented in our database. However, always consult a healthcare provider before combining supplements.