Melanotan is not a tan. It's an unregulated peptide with real risk. As a dermatologist, here's the reality: It has been linked to new and changing moles including cases of File:Melanotan one.gif Wikimedia Commons A published study tested Melanotan II from three different online sellers. Every vial claimed to contain 10 mg. The actual amounts? Between 4.32 and 8.84 mg. That means some vials had less Rise in use of 'dangerous' tanning injection Channel 4 News Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and