Compare peptides
Compare two to four peptides side by side. Counts are exact.
In PepBank now:147 peptides, 6 blends and 13 other compounds97,577 study results from 17,383 studies8,473 clinical trialsUpdated
Comparing 2 peptides · Data version 308560
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| Peptide | Synthetic analog Dihexa | Undefined product Cortexin (cortical polypeptide complex) | |
|---|---|---|---|
| Identity | |||
| Kind | Synthetic analog | Undefined product | |
| Area | Brain and mood | Brain and mood | |
| Evidence | |||
| Amount of evidence | 15 | 252 | |
| Evidence level | Results from animal studies only | Has results from studies in people | |
| Safety | |||
| Safety results | No safety results | 18 (14 in people) | |
| Status | |||
| Approval | |||
| Sport (WADA) | |||
| Registered trials | None registered | None registered | |
Shared outcomes
From the regulatory data of each peptide.
The sources we use show no clinical development. They show no approval at the FDA, the EMA or elsewhere (as of 13 Oct 2026).
Outcome groups with study results for at least two of these peptides. Counts include only results from studies that gave the peptide. Bar length is the number of results, on one scale. The bars show how much was studied, not how large an effect was. A peptide with more studies can look stronger here without being stronger. For results, see the randomized results above.
| Outcome group | Dihexa | Cortexin (cortical polypeptide complex) |
|---|---|---|
| NeuroprotectionNervous system and cognition | 55 | 9233509 |
| Cognition and memory |
PepBank is a research reference. Talk to a doctor before you use any peptide.
22 |
48435 |
| Inflammation markersNervous system and cognition | 55 | 1165 |
|---|
| Receptor activity and mechanismNervous system and cognition | 33 | 14149 |
|---|
Registered trials, ranked by phase (late phases first), then posted results and enrollment. Status is the registry status. Study results come from published studies. Results posted at ClinicalTrials.gov are shown on each trial page.
No registered trial that tests Dihexa found in ClinicalTrials.gov.
No registered trial that tests Cortexin (cortical polypeptide complex) found in ClinicalTrials.gov.
For each outcome that two or more peptides have results for: the best result of a single randomized trial, on the same measure (the same kind of number, the same unit). When a trial has several dose arms, the cell shows the highest dose arm. The trials differ in people, length and dose, so a gap between two cells is not proof that one peptide works better.
No outcome has a randomized-trial result on the same measure for two or more of these peptides yet.
The other peptides have no randomized result on the same measure, so these results cannot be set side by side.
| Outcome | Dihexa | Cortexin (cortical polypeptide complex) |
|---|---|---|
| Cognition and memoryNervous system and cognitionCompared as: value in the arm that got the peptide, in points | No randomized trial result 2 results from other study designs. | 4.11 points MMSE change Dose studied: 10 mg twice dailytwo courses of 10 days eachn = 4902025 |
| NeuroprotectionNervous system and cognitionCompared as: value in the arm that got the peptide, in % | No randomized trial result 5 results from other study designs. | 71% Positive EEG changes Dose studied: 10 mgTwo courses, 10 injections per coursen = 602012 |
No randomized trial result
2 results from other study designs.
4.11 points
MMSE change
Dose studied: 10 mg twice dailytwo courses of 10 days eachn = 4902025
No randomized trial result
5 results from other study designs.
71%
Positive EEG changes
Dose studied: 10 mgTwo courses, 10 injections per coursen = 602012