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 Good Effects Bad Effects Staten Island, NY Sooo this feels vulnerable to share. I've been taking a very small dose of Melanotan 2 peptide to help build a tan and the last few days I've worn zero Melanotan 2 doesn't just stimulate melanin in your skin, but your hair follicles aswell .. my beard is about 80% darker today, than a month before I started taking melanotan. Guys with Melanin for Hair: What Role It Plays & How to Increase Production