Dark Patches Inside Mouth: 7 Alarming Causes Liv Hospital What exactly is Melanotan and how does the tanning solution work? 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 Fast Tanning Effects Mt2 Tanning Vials Melanotan 2 Injection Vials for Darker Skin Melanotan 2 Vials and Tanning Vials Tanning Nose Spray price