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 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 What does the C Rate on a Battery Mean? BatteryGuy.com Knowledge Base 7.4V LiPo Battery: Complete Guide to Specs, Safety & Applications The Truth About Melanotan: Tanning Peptide or More?