People are injecting a tanning peptide to get darker skin without the sun., Its called Melanotan., It works by stimulating melanin production in the body but regulators have raised serious safety Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA) Melanotan is not a tan. It's an unregulated peptide with real risk. As a dermatologist, here's the reality: It has been linked to new and changing moles including cases of How Tanning Injections Work [Print Article] All Things Tanning For Tan Fans!