The Best Law Firms in BC, Alberta, and the Northern Territories Canadian Lawyer Tanning peptides like melanotan are trending online, but theyre not approved, not regulated, and illegal to advertise in Australia. When products havent been properly tested, theres no way to know 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 Peptide drugs: Health Canada warns of unauthorized products