p‐Phenylenediamine‐Free Hair Dye?—Misleading Labelling Causing Allergic Contact Dermatitis

• DOI: 10.1111/cod.14813
• Publication Date: 2025-05-20T10:23:46Z
• Authors: Wimolsiri Iamsumang; Kevin Bertilsson; Jakob Dahlin; Pichamon Promsena; Ploychompoo Srisu...; Pranee Svetvilas; Penpun Wattanakrai; Annarita Antelmi; Cecilia Svedman; Thanisorn Sukakul

ABSTRACTWe report three cases of contact allergy to a mislabelled hair dye product. A hair dye product labelled as p‐phenylenediamine‐free has been found to contain p‐phenylenediamine by a chemical analysis at the level above the limits allowed in the product.