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Melanotan 2 (MT-2) is a synthetic analog of the endogenous peptide hormone alpha‑melanocyte‑stimulating hormone (α‑MSH), designed for controlled scientific investigation of the melanocortin system and related biological pathways. MT-2 has been widely characterized in preclinical and clinical research for its interaction with melanocortin receptors MC1R, MC3R, MC4R, and MC5R, making it a versatile tool compound for mechanistic studies.
Melanotan 2 is a cyclic heptapeptide that functions as a non‑selective melanocortin receptor agonist and has been used in experimental models to study pigmentation, energy balance, and inflammatory signaling. In published literature, MT-2 has been explored for its ability to stimulate melanogenesis via MC1R, modulate appetite and metabolic parameters via central melanocortin pathways, and influence immune and neuroinflammatory processes.
Peak Science Peptides supplies pharmaceutical‑grade Melanotan 2 manufactured to stringent quality specifications for research use. Each batch is accompanied by independent third‑party laboratory analysis (COA) to confirm identity, purity, and potency, supporting reproducible in vitro and in vivo experimental design.
In the scientific literature, Melanotan 2 has been used to interrogate several key research domains, including: melanocyte biology and pigmentation pathways, metabolic regulation and appetite, cardiovascular and inflammatory signaling, and neuroendocrine function. MT-2’s activity is mediated through activation of melanocortin receptors, with MC1R primarily associated with melanogenesis and photobiology, and MC3R/MC4R implicated in central energy homeostasis and autonomic regulation.
Studies have reported that MT-2 can serve as a probe for thermogenic responses, anti‑inflammatory mechanisms, and atherosclerotic plaque biology in animal models via modulation of cytokine expression and vascular function. Its ability to engage multiple melanocortin receptor subtypes has also made it a candidate tool for exploring neuroprotective pathways, including models of neuroinflammation and amyloid‑related pathology.
All Melanotan 2 offered by Peak Science Peptides is intended strictly for laboratory research and analytical purposes only and is not approved for human or veterinary administration.
Melanotan 2 acts as a non‑selective agonist at melanocortin receptors MC1R, MC3R, MC4R, and MC5R, which are distributed across skin, central nervous system, and peripheral tissues. Activation of these receptors can modulate cyclic AMP signaling and influence processes such as pigmentation, appetite, autonomic tone, and immune activity, depending on the receptor subtype and tissue context.
Research and regulatory sources describe Melanotan 1 (afamelanotide) as a more MC1R‑selective analog primarily associated with cutaneous photoprotection, while Melanotan 2 exhibits broader melanocortin receptor activity, including central nervous system effects. This difference in receptor selectivity and blood–brain barrier penetration leads to distinct pharmacological profiles and is an important consideration in experimental design.
Regulatory agencies and clinical reports have highlighted that Melanotan 2 is not approved as a medicinal product and have raised concerns about uncontrolled, non‑medical use, including potential adverse events and unknown long‑term safety. For this reason, MT-2 should be handled only within appropriate laboratory settings, under institutional oversight, and in accordance with local regulations, biosafety protocols, and material handling guidelines.
No; scientific and regulatory literature emphasize that Melanotan 2 is not authorized as a drug, cosmetic, or tanning agent and is not approved for human or veterinary administration. Peak Science Peptides supplies Melanotan 2 strictly for laboratory research use only, and it must not be used as a therapeutic, cosmetic, or self‑administration product in any context.
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