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Melanotan peptides are a group of synthetic peptides designed to mimic the natural hormone alpha-MSH (melanocyte-stimulating hormone). They are mainly known for their effects on skin pigmentation (tanning) and have also been studied for other biological effects. They are not FDA-approved for cosmetic tanning use.
Melanotan peptides are lab-made compounds that stimulate melanocytes, the cells responsible for producing melanin, the pigment that gives skin its color.
The two most commonly known types are:
Stimulates melanin production, which may:
Increased melanin may provide some natural protection against UV damage, though it does not replace sunscreen.
Some users report:
This is due to its effects on certain brain receptors.
Some individuals report reduced appetite, though this is not its primary use.
Melanotan peptides activate melanocortin receptors (MC receptors), which influence:
Melanotan peptides are synthetic tanning peptides that increase melanin production, leading to darker skin tone and possible additional effects like libido changes, but they remain experimental and unregulated.