The oxidation of p-phenylenediamine, an ingredient used for permanent hair dyeing purposes, leads to the formation of hydroxyl radicals: Oxidative stress and DNA damage in human immortalized keratinocytes - Zanoni, Thalita B; Hudari, Felipe; Munnia, Armelle; Peluso, Marco; Godschalk, Roger W; Zanoni, Maria Valnice Boldrin; Hartog, Gertjan J. M. den; Bast, Aalt; Barros, Silvia Berlanga de Moraes; Maria-Engler, Silvya Stuchi; Hageman, Geja J; Oliveira, Danielle Palma de (Toxicology Letters, 2015)