Loading…
We use essential cookies (authentication, your saved goals/stack) by default. With your permission we'll also enable privacy-respecting analytics (Vercel Web Analytics, anonymous load-time metrics) and error-replay diagnostics (Sentry — DOM snapshots only when an error fires) so we can fix bugs faster. Learn more
Head-to-head evidence comparison — which supplement is right for you?
Phosphatidylserine wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
3 of 3 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 Agmatine and Phosphatidylserine have evidence — compare verdict strength side-by-side.
500-2500mg daily
Empty stomach for mood/nootropic effects, Pre-workout for pumps, Before bed for neuroprotection
Agmatine Sulfate
100-300mg daily
With meals, Evening or post-workout for cortisol
Soy or sunflower-derived phosphatidylserine
2-4 weeks
1-2 weeks
Ongoing
Acute
4-12 weeks
2 weeks
4-8 weeks
Exploring the Cardiovascular Impacts of Agmatine: A Systematic Review
Medical sciences (Basel, Switzerland) (2025) · Systematic review
The effects exerted by AG depend on the dose and route of administration, as well as on the receptors involved and the pathophysiological pathway used.
Role of Inflammatory Mechanisms in Major Depressive Disorder: From Etiology to Potential Pharmacological Targets
Cells (2024) · Systematic review
Together, neuroinflammation and gut dysbiosis induce alterations in tryptophan metabolism, culminating in decreased serotonin synthesis, impairments in neuroplasticity-related mechanisms, and glutamate-mediated excitotoxicity.
Role of agmatine in neurodegenerative diseases and epilepsy
Frontiers in bioscience (Elite edition) (2014) · Systematic review
Agmatine, a cationic polyamine synthesized after decarboxylation of L-arginine by the enzyme arginine decarboxylase, is an endogenous neuromodulator that emerges as a potential agent to manage diverse central nervous system (CNS) disorders.
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 single pilot study (n=11) showing 46% pain reduction. Very limited evidence with small sample size. GI discomfort may occur at higher doses. Individual variation noted in study.
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 7/10) and wins in 2 of 3 categories.
For reduce anxiety & stress, Phosphatidylserine has a higher relevance score (65 vs 55).
No known interactions between Agmatine and Phosphatidylserine have been documented in our database. However, always consult a healthcare provider before combining supplements.