Melanotan II (Tan Jabs): Why They're Not Worth The Risk Melanotan What It Is and Its Relation to Skin Cancer Melanotan II (MT II) Peptide Therapy Beverly Hills Melanotan II Erectile Dysfunction: What the Research Shows and Practical Considerations 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 Melanotan II Erectile Dysfunction: What the Research Shows and Practical Considerations