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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
Mostly mechanism / observational
Top outcomes
Verdict
Mostly mechanism / observational
1 of 1 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (2)
Outcomes where both Noopept and Phosphatidylserine have evidence — compare verdict strength side-by-side.
10-30mg daily in divided doses
Morning and early afternoon, Divided into 2-3 doses, Sublingual for faster onset
Noopept powder (sublingual) or capsules
100-300mg daily
With meals, Evening or post-workout for cortisol
Soy or sunflower-derived phosphatidylserine
1-2 weeks
Acute to 1 week
Ongoing
With higher doses
4-12 weeks
2 weeks
4-8 weeks
Novel Technologies for Dipeptide Drugs Design and their Implantation
Current pharmaceutical design (2018) · Systematic review
The latter usually corresponds to a beta-turn of some regulatory peptide.
Neuroprotective effect of novel cognitive enhancer noopept on AD-related cellular model involves the attenuation of apoptosis and tau hyperphosphorylation
Journal of biomedical science (2014) · Observational
Taken together, these data provide evidence that novel cognitive enhancer noopept protects PC12 cell against deleterious actions of Aβ through inhibiting the oxidative damage and calcium overload as well as suppressing the mitochondrial apoptotic pathway.
Comparative studies of Noopept and piracetam in the treatment of patients with mild cognitive disorders in organic brain diseases of vascular and traumatic origin
Neuroscience and behavioral physiology (2009) · Observational
Clinical trial examining Noopept efficacy
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).
Phosphatidylserine containing omega-3 fatty acids may improve memory abilities in non-demented elderly with memory complaints: a double-blind placebo-controlled trial
Dementia and geriatric cognitive disorders (2010) · Rct · n=157
157 participants were randomized to receive either PS-DHA or placebo for 15 weeks.
Phosphatidylserine for the Treatment of Pediatric Attention-Deficit/Hyperactivity Disorder: A Systematic Review and Meta-Analysis
Journal of alternative and complementary medicine (2021) · Meta analysis · n=216
Four studies met the inclusion criteria for the narrative review (n = 344) and three for the meta-analysis (n = 216).
Based on RCT with n=60 showing MMSE improvements after 2 months. Most studies lack placebo controls and have small sample sizes. Effectiveness may be overestimated due to study limitations.
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 (6/10 vs 4/10) and wins in 2 of 3 categories.
For improve memory & learning, Phosphatidylserine has a higher relevance score (80 vs 68).
No known interactions between Noopept and Phosphatidylserine have been documented in our database. However, always consult a healthcare provider before combining supplements.