PEPENDIUM LABS

Free research / Source-linked guides

Peptide study guides

Find a peptide, see who or what was studied, what was measured, and how the experiment was structured. Human studies and preclinical research are labeled separately.

Start typing to see peptide suggestions. Every name below has a research-search route; a checked source-method guide is available only where labeled.

← Browse all study guides

These guides report individual source methods and findings. They are not standardized or personal-use dosing protocols. A preclinical study does not establish a human regimen; original source records may change.

1 checked guide shown for Melanotan II. This is a bounded sample, not a complete peptide catalog. Search research on any peptide.

Human study

Melanotan II

Synthetic melanotropic peptide initiates erections in men with psychogenic erectile dysfunction: double-blind, placebo controlled crossover study.

Evidence sourceOriginal human study · PMID 9679884
Studied inTen men with psychogenic erectile dysfunction and no known organic cause
DesignDouble-blind, vehicle-placebo-controlled crossover experiment; small sample
Human protocolNo general protocol established by this single study

What researchers measured

  • Presence, duration and rigidity of erections over six hours using RigiScan
  • Reported transient effects including nausea, stretching, yawning and decreased appetite

Methods reported in this human study

Melanotan-II condition
Melanotan-II injection in the crossover experiment
Vehicle placebo condition
Vehicle placebo comparison in the crossover experiment

This is an older ten-person experiment in a defined population. The abstract reports injections but does not establish a general regimen or product formulation.

Source checked 2026-09-28. This snapshot is not automatically updated.

Open original source (PMID 9679884) ↗

Search all original studies on Melanotan II → · Open Mix Chart →

See broader research collection status