Melanotan II (Tan Jabs): Why They're Not Worth The Risk 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 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 Well its that time of year and the MT2 questions are flooding the DMs so thought if quickly cover how I personally like to use MT2 to get all the possitives and avoid the nausea. As usual this is Emerging Threat: Melanotan, Repackaging, and Online Sales