Melanotan II Erectile Dysfunction: What the Evidence 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 Here's the part nobody explains when they're selling you the "Barbie drug.", , Melanotan 2 is a synthetic peptide that mimics alpha MSH a hormone your body already makes to tell your skin cells to Melanotan 2: Day 6 , Another one hour in what minimal sun we had today. , No tanning beds, just sun. , Moved down to 50mcg before sun exposure, No more side effects :) , Before & before , Well see