Nasal tanning sprays linked to skin cancer, trading standards officers warn Consumer affairs The Guardian Melanotan Tanning Peptides: Safe Use, Side Effects & How It Works Scientifically 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 Melanotan II (Tan Jabs): Why They're Not Worth The Risk Young people targeted online by sellers of 'dangerous and illegal' tanning products, HPRA warns Irish Independent Emerging Threat: Melanotan, Repackaging, and Online Sales