Structural insights into ligand recognition and activation of the melanocortin 4 receptor Cell Research Melanotropic peptides: more than just Barbie drugs and suntan jabs? Sharing my personal experience with Melanotan tanning injections (now nasals) how vanity led me down the path of using it, thinking I'd done all my research. Now, years later, I'm dealing with Evaluation of synthetic alpha melanocyte stimulating hormone analogs: An observational study of unregulated, online available drugs Journal of the American Academy of Dermatology Is Melanotan II (Afamelanotide) nasal spray safe to use for tanning?