You Should Avoid Using Nasal Tanning Sprays 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 4: Whacky Side Effects. , I am cutting back from daily use and probably using once a week from here on out. , Zero appetite, Fatigue, And what I think was sleep paralysis , And yes Can You Take Too Much Melanotan? A Z Guide Common Symptoms of a Fentanyl Overdose and What to Do GoodRx