Melanotan II for Erectile Dysfunction: What the Evidence Shows and Practical Considerations You Should Avoid Using Nasal Tanning Sprays Changes in Oral Mucosa Associated with Melanotan II Injections: A Case Report 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 That quick tan injection is NOT worth the risk., Melanotan peptide injections stimulate pigment cells, and its use has been linked to rapid changes in moles, including the potentially fatal skin