Also known as: MT-II, MT2
Melanotan II is a synthetic peptide and a melanocortin receptor agonist primarily studied for its effects on tanning and pigmentation. It is a derivative of the naturally occurring hormone alpha-melanocyte-stimulating hormone (α-MSH) and falls under the category of tanning and pigmentation peptides. This peptide has gained attention for its potential to enhance skin pigmentation and provide a protective response against ultraviolet (UV) radiation.
Melanotan II functions by binding to melanocortin receptors, particularly the MC1R receptor, which plays a crucial role in the regulation of melanin production in the skin. When activated, these receptors stimulate melanogenesis, leading to increased melanin synthesis and, consequently, a darker skin tone. This mechanism not only promotes tanning but may also offer some level of protection against UV-induced skin damage.
Melanotan II serves as a significant peptide in the study of tanning and pigmentation, primarily through its action as a melanocortin receptor agonist. Its potential applications in enhancing skin pigmentation and providing UV protection make it a relevant subject of ongoing research.
Last updated: Jan 8, 2026