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DISCLAIMER: This product is strictly for research use only. It is meant solely for laboratory testing and in vitro studies-not for use in or on humans or animals. All details provided on this site are for educational purposes. This item is not intended to be used as a drug, supplement, or cosmetic, and must not be misrepresented as such.

Melanotan II

Melanotan II

Melanotan II is a synthetic peptide studied for its ability to darken skin pigmentation, enhance libido, and influence energy regulation by mimicking the effects of alpha-MSH.

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All peptides arrive in powdered form for stability.

Third-Party Verified Purity
Third-Party Verified Purity

Each batch is tested and certified to meet or exceed 99% purity standards.

Made in the USA
Made in the USA

Produced in United States WHO/GMP and ISO 9001:2015 certified facilities.

Rigorous Quality Control
Rigorous Quality Control

Double-tested to ensure the highest quality for the most effective research.

What is Melanotan II?

Melanotan II (MT-II) is a synthetic analog of the naturally occurring alpha-melanocyte-stimulating hormone (α-MSH). It was originally developed to stimulate melanin production (pigment in the skin), but has also demonstrated effects on sexual function, appetite regulation, and energy balance. It binds to multiple melanocortin receptors (MC1R–MC5R), particularly MC1R (for tanning) and MC4R (linked to sexual arousal).

Potential Benefits Shown in Studies

  • Stimulating natural skin tanning by increasing melanin
  • Enhancing libido and improving erectile function
  • Reducing appetite and supporting fat loss
  • Providing potential UV protection by darkening skin
  • Supporting mood and energy levels through CNS effects
  • Helping regulate body weight and metabolism

Mechanisms of Action

Melanotan II works by:

  • Activating melanocortin receptors in the skin and brain
  • Stimulating melanin production in melanocytes (skin cells)
  • Enhancing sexual desire and erectile function via MC3R and MC4R activity
  • Reducing appetite and affecting metabolic regulation through CNS pathways

Its broad receptor activity explains its diverse physiological effects beyond tanning.

Molecular Structure of Melanotan II

Melanotan II molecular structure

Sequence

Ac-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-NH₂

Molecular Properties

Formula

C₅₀H₆₉N₁₅O₉

Weight

1024.18 g/mol

Source
PubChem

Note: "c" denotes a cyclic structure; Nle = norleucine

Melanotan II Research Highlights

Melanotan II is a synthetic analog of alpha‑melanocyte-stimulating hormone (α‑MSH), effectively inducing melanin production through activation of melanocortin receptors, especially MC1R for pigmentation.

Source: wikipedia

MT‑II has shown aphrodisiac-like effects and can induce erections by stimulating MC4R receptors in humans.

Source: wikipedia

Disclaimer: Melanotan II is a research compound and is not approved by the FDA for use in humans. This content is provided for educational purposes only.

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