Are Freckles on Lips a Cause for Concern? Causes, Remedies 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 Oral medicine: 7. red and pigmented lesions Dental Update Betatan Melanotan ii Tanning Injection 10 mg vial Betatan Tan me skinny Oral melanotic macule Stock Image C067 2476 Science Photo Library Martina Big, 36, who is from Germany, and her husband Michael Eurwen, 38, who both injected Melanotan, a synthetic hormone to darken their skin have announced that they are planning to permanently