Melanotan II Wikipedia 5 days progress. I've been taking 250mcg of Melanotan II and tanning for 10m outside daily. It's working Tighter in the hamstrings, glutes are still holding all of my fat so Dangerous' tanning products promoted by influencers 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 Pyoderma Gangrenosum Secondary to Melanotan Cureus Melanotan II: Tanning injections, nasal sprays harmful to health