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Head-to-head evidence comparison — which supplement is right for you?
Phosphatidylserine wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Mostly mechanism / observational
1 of 1 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mostly mechanism / observational
1 of 1 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Phenylpiracetam and Phosphatidylserine have evidence — compare verdict strength side-by-side.
100-200mg as needed
Morning (lasts 4-6 hours), Before demanding mental/physical tasks, On empty stomach for faster onset
Phenylpiracetam powder or capsules
100-300mg daily
With meals, Evening or post-workout for cortisol
Soy or sunflower-derived phosphatidylserine
30-60 minutes
30-60 minutes
30-60 minutes
After 1-2 weeks daily use
4-12 weeks
2 weeks
4-8 weeks
[Efficacy and safety of fonturacetam in asthenia: a systematic review and meta-analysis]
Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova (2025) · Meta analysis · n=549
The meta-analysis included 549 patients (mean age 45.9 years, 95% CI: 38.1-53.7).
[Pharmacological effects of fonturacetam (Actitropil) and prospects for its clinical use]
Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova (2024) · Systematic review
Phenylpiracetam (PP) is a nootropic drug with additional pharmacological effects, including anxiolytic, antiasthenic, antidepressant, anti-inflammatory and anticonvulsant effects.
[Asthenia, mental fatigue and cognitive dysfunction]
Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova (2023) · Observational
Fatigue can also be classified by neuromuscular and/or cognitive and mental fatigue.
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.
Based on meta-analysis (n=549) and systematic review (n=380) showing cognitive improvements in stroke/TBI patients and asthenia reduction. Effects include mental energy, focus, and psychostimulant properties. Rapid tolerance development limits daily use effectiveness.
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.
AI-estimated from published studies. Interpret as directional guidance.
Phosphatidylserine has a higher evidence score (8.5/10 vs 6/10) and wins in 3 of 3 categories.
For improve memory & learning, Phosphatidylserine has a higher relevance score (80 vs 58).
No known interactions between Phenylpiracetam and Phosphatidylserine have been documented in our database. However, always consult a healthcare provider before combining supplements.