Melanotan What It Is and Its Relation to Skin Cancer Andrew Huberman discusses the risks and benefits of melanotan, a peptide that can dramatically increase energy and libido, but also carries serious health risks. >> See comments 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 Emerging Threat: Melanotan, Repackaging, and Online Sales Melanotan II (MT II) Peptide Therapy Beverly Hills Melanotan II (Tan Jabs): Why They're Not Worth The Risk