Melanotan injections are sold illegally and possibly unsafe Cancer Research UK Cancer News Tanning from the inside out = Highly Dangerous and Illegal!, Many products advertised on social media platforms promising a tan from the inside out or a tan without sun such as injectable 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 Eruptive Dysplastic Nevi Following Melanotan Use Actas Dermo Sifiliogrficas Afamelanotide Wikipedia Nasal tanning sprays linked to skin cancer, trading standards officers warn Consumer affairs The Guardian