p-Phenylenediamine sensitization is more prevalent in central and southern European patch test centres than in Scandinavian: results from a multicentre study
Thyssen, Jacob Pontoppidan × Andersen, Klaus Ejner Bruze, Magnus Diepgen, Thomas Gimenez-Arnau, Ana M Goncalo, Margarida Goossens, An Le Coz, Christophe McFadden, John Rustemeyer, Thomas White, Ian R White, Jonathan M Johansen, Jeanne Duus #
Wiley-blackwell publishing, inc
Contact dermatitis vol:60 issue:6 pages:314-319
Positive patch test reactions to p-phenylenediamine (PPD) are common. PPD is used in oxidative hair dyes and is also present in dark henna temporary 'tattoos'. Cross-sensitization to other contact allergens may occur. Because subjects sensitized to PPD are at risk of clinically severe reactions upon hair dyeing, there is a need for 'current' prevalence data on PPD sensitization.