Melanotan II (Tan Jabs): Why They're Not Worth The Risk Is this injectable tanning drug safe to use? 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 Changes in Oral Mucosa Associated with Melanotan II Injections: A Case Report Melanotan II for Erectile Dysfunction: What the Evidence Shows and Practical Considerations