What exactly is Melanotan II?

Melanotan II (MT-II) is a synthetic version of the natural alpha-melanocyte stimulating hormone ($\alpha$-MSH). While the natural version of the hormone quickly decays in the body, MT-II is designed to be much more stable and potent.

It can be thought of as a "master key" to the melanocortin system. Because it interacts with several different "locks" (receptors) throughout the body, it has become one of the most versatile tools in modern peptide research.

How does it work? (Receptor Guide)

MT-II is a "non-selective agonist," meaning it binds to several melanocortin receptors simultaneously. Here's what scientists are testing for each:

  • MC1R: Targets skin cells (melanocytes) to study pigment production processes.
  • MC3R and MC4R: Found primarily in the brain, they are being studied for their role in metabolism, appetite regulation, and sexual arousal.
  • MC5R: Analyzed for connections with the functioning of exocrine glands.

Most important research areas in 2026

Scientists are currently using MT-II to explore the following topics:

  • UV protection: Could stimulating melanin production provide a „biological shield” to protect DNA from sun damage?
  • Repigmentation: Research into conditions such as vitiligo, examining whether MT-II combined with phototherapy can help restore lost skin color.
  • Metabolic health: Analysis of how the peptide sends signals to the brain to regulate appetite and energy expenditure.
  • Neuroendocrine pathways: Investigation of the peptide's unique ability to trigger physical excitation signals directly through the central nervous system.

Technical data and laboratory service

To ensure data accuracy and peptide stability, standard laboratory protocols must be followed:

  • Summary formula: $C_{50}H_{69}N_{15}O_9$
  • Sequence: $Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH_2$
  • Storage (powder): Store at room temperature -20°C in order to maintain long-term stability.
  • Storage (solution): After reconstitution, store at a temperature of 2°C to 8°C and use within 2–4 weeks.

Why does quality matter?

In peptide research, purity is absolutely crucial. Even minor impurities can skew results or trigger unexpected reactions in research models. Our store prioritizes triple-verified purity, allowing you to focus on your science, not random variables.

⚠️ FOR RESEARCH PURPOSES ONLY: MANDATORY DISCLAIMER

This compound is intended for laboratory and in vitro research purposes ONLY. Strictly not suitable for human consumption, clinical use, or diagnostic purposes. All studies should be conducted in controlled facilities by qualified specialists.