FDA Fast Facts Melanotan What It Is and Its Relation to Skin Cancer Melanotan II (Tan Jabs): Why They're Not Worth The Risk Nasal tanners claim to work by using Melanotan II, a chemical that darkens skin pigmentation. It is illegal to sell medicinal products containing Melanotan II in the UK but since the tanners are sold Art for trying times: Titian's The Death of Actaeon and the capriciousness of fate Doctors warn against tan injections