What exactly is Melanotan and how does the tanning solution work? Is this injectable tanning drug safe to use? Man warns against 'dangerous' tanning injections after turning so dark he 'looked like Madge from Benidorm' and now has the freckled skin of a 60 year old Tanning, fake tan and Melanotan Cancer Research UK 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 longer lasting than