Melanotan II for Erectile Dysfunction: What the Evidence Shows and Practical Considerations When it comes to tanning peptides, there are two main options: Melanotan 1 and Melanotan 2. Melanotan 1, also called afamelanotide, is FDA approved for a rare light sensitivity condition and works Is this injectable tanning drug safe to use? Melanotan Erectile Dysfunction: What the Research Actually Shows Eruptive Dysplastic Nevi Following Melanotan Use Actas Dermo Sifiliogrficas Melanotan II A Sun Kissed Look, and a Confident You.