Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA) 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 Over the last 5 years, 29 year old Martina has transformed her body with countless cosmetic procedures and tanning injections. She now says she's the 'proud owner of black skin', and identifies herself as Dark side: tanning injections 'may be lethal'