Melanotan II, commonly known as Melanotan 2, is an analogue of the endogenous alpha-melanocyte stimulating hormone (α-MSH) that is composed of seven amino acids. Melanotan II was originally developed by researchers lead by Victor J. Hruby and Mac E. Hadley at the University of Arizona as a possible preventative treatment to combat the harmful effects of UV radiation exposure caused by sunlight. These scientists hypothesized that the exogenous melanotan could stimulate melanogenesis, which would then lead to the production of melanin to form a protective barrier from the UV rays emitted by the sun. Further studies have shown that Melanotan II could quite possibly be a thousand times more powerful than natural α-MSH at stimulating melanogenesis and may also stimulate other melanocortin receptors, namely MC1, MC3 and MC4. The MC3 and MC4 receptors are responsible for appetite, metabolism and sexual behavior. Resultantly, Melanotan II may elicit appetite suppressant, lipolytic, and libido-enhancing (aphrodisiac) effects. A few synthetic analogues of α-MSH have been investigated for their apparent photoprotective effects against ultraviolet (UV) radiation from the sun, namely Melanotan-1 and Melanotan II.


Melanotan II (Melanotan 2) Peptide Information

Melanotan II has been thought to dramatically increase natural melanogenesis, which is a process that occurs when cells produce a pigment known as melanin that is found in the skin, eyes, and hair. Melanogenesis leads to a long-lasting pigmentation, which is in contrast to the pigmentation that originates from oxidation of already-existing melanin. The positive results gleaned from Melanotan II administration have encouraged further research into the development of this peptide and others for theoretical future functional therapeutic utilization. At we are fervently engaged in the quest to uncover these exciting possibilities and we are dedicated to doing our utmost to provide only the best quality Melanotan II in order to unlock the potential of this extraordinary peptide.

Melanotan II Information

Melanotan II Peptide Purity: Greater than 99% - Assayed via HPLC
Melanotan II Sequence: Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2
Molar Mass: 1024.180 g/mol
Melanotan II CAS #: 121062-08-6
PubChem Number: 92432
Molecular Formula: C50H69N15O9

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Click Here to Order is an online supplier of Melanotan II peptides that are manufactured in the United States under strict high-level quality control processes in state of the art laboratories. Multi-Stage HPLC and MS Analyses are performed following the completion of peptide synthesis, purification and quality control. Quality Assurance procedures are also followed independently to double guarantee the high quality of every peptide. is committed to TQM Total Quality Management and every peptide is inspected multiple times during the manufacturing process to ensure the supply of only premium quality (additive free) and highly purified melanotan II - Exceeding 99% purity. Purchase Melanotan II online confidently and securely. Our company spares no expense in ensuring that our Melanotan II peptides are of the highest possible quality and purity and we understand that lower quality peptides can be ridden with fillers, like mannitol. Don't sacrifice time and money for an inferior product; make sure that you purchase only premium quality additive-free Melanotan II manufactured in the United States available from All purchases will include a detailed HPLC (High Performance Liquid Chromatography) purity analysis and MS (Mass Spectrometry) report. Our Melanotan II is synthesized fresh bi-monthly to ensure stability and maintain high purity levels.