Can You Use Melanotan Long Term? Illegal tanning nasal spray not a 'harmless alternative' to sunbaking, says TGA ABC News Melanotan II (Tan Jabs): Why They're Not Worth The Risk 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 longer lasting than Is this injectable tanning drug safe to use? Teen Boys and Young Men Are Injecting Peptides in Search of Perfection WSJ