Three healthy male volunteers took part in a single-blind pilot with alternating saline and Melanotan II exposure over two weeks. Pigmentation was assessed one week after the study exposures ended.
What the researchers measured
Skin pigmentation using visual assessment and reflectance measurements, together with recorded adverse effects.
How to read this evidence
The paper includes research in people. Its comparison groups, participant selection, follow-up, and measured outcomes determine how far the findings can be applied. The label alone does not establish efficacy or safety.
Results in context
Pigmentation changes were reported in two participants. Nausea, fatigue, sleepiness, yawning, and spontaneous erections were also recorded. The pilot's very small size and short observation period are central to interpreting both the pigment findings and adverse effects.
What this does not establish
Three participants and brief follow-up cannot characterize uncommon harms, long-term effects, or broader population safety.
Publication & source
Why this paper is included
The compound is a named subject of the publication title.
Publication indexing
Clinical Trial · Clinical Trial, Phase I · Controlled Clinical Trial · Journal Article · Research Support, U.S. Gov't, P.H.S.