Can You Take Too Much Melanotan? A Z Guide 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 NADclinic Personalised Longevity You may have heard about the latest trend tanning nasal sprays and injections. So how does it work and is it safe? Refs: Fjellhaugen Hjuler et al., 2014, Melanoma associated with the use of What are 'melanotan' injections? Explaining the controversial tanning drug Dazed