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 This guy injected himself with a drug called Melatonan II for 5 months. Here's his before after. : r pics Melanotan II an overview ScienceDirect Topics View of Association of tanning injection with hypercortisolism, hyperglycaemia and ketosis in type 1 diabetes mellitus British Journal of Diabetes Melano Tan 2 Experience: Day 3 Update