
Melanotan I
10 mg
Alpha-MSH analog with MC1R selectivity used in melanocortin receptor and pigmentation research.
Free U.S. shipping $175+

Melanotan II is a cyclic lactam heptapeptide analog of alpha-MSH. Cyclization constrains the peptide's conformation, increasing stability and potency relative to the linear hormone.
Unlike more selective analogs, it engages multiple melanocortin receptor subtypes, which makes it useful in laboratory research as a broad reference agonist when mapping activity across the receptor family.
For research use only — not for human or animal consumption.
Supplied solely for legitimate laboratory and research purposes. Not for medical or veterinary use, diagnosis, treatment, or prevention of disease.
Analytical values reflect per-lot documentation and appear once a batch is released.
Topics reflect published preclinical and in vitro research. Reference only — not a claim of clinical outcomes.
Melanotan II was developed in the 1980s at the University of Arizona as a superpotent α-MSH analog with a cyclic structure conferring receptor stability.
It has since become one of the most cited melanocortin-agonist research tools.

10 mg
Alpha-MSH analog with MC1R selectivity used in melanocortin receptor and pigmentation research.

10 mg
Nine-residue neurohypophysial peptide studied for oxytocin receptor signaling and social-behavior models.
