title: Contact dermatitis to hair dye: an update.
abstract: Exposure to hair dyes has long been known as a significant risk factor for development of allergic contact dermatitis among the exposed population as these lead to severe eczema of face and upper trunk in the consumer and hand eczema in hair-dressers. Currently, para-phenylenediamine (PPD) is the main ingredient used in permanent hair color products in the market and is the most important allergen. Prevalence of PPD sensitization is high in patients with contact dermatitis across all continents, with hair dye use being the commonest cause. In order to decrease the burden of disease, use of alternative natural dyeing agents among consumers and use of barrier neoprene gloves among hairdressers should be encouraged apart from stringent legislation to reduce the amount of PPD reaching the consumer.
authors.affiliation: Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
authors.forename: Sanjeev
authors.initials: S
authors.lastname: Handa
authors.forename: Rahul
authors.initials: R
authors.lastname: Mahajan
authors.forename: Dipankar
authors.initials: D
authors.lastname: De
mesh_terms: D017449:Dermatitis, Allergic Contact / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D009783:Dermatitis, Occupational / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D005148:Facial Dermatoses / Q000139:chemically induced / Q000175:diagnosis / Q000628:therapy; D006202:Hair Dyes / Q000009:adverse effects* / Q000737:chemistry / Q000145:classification; D006229:Hand Dermatoses / Q000139:chemically induced / Q000175:diagnosis / Q000628:therapy; D006801:Humans; D010655:Phenylenediamines / Q000009:adverse effects* / Q000737:chemistry
chemical_list: D006202:Hair Dyes; D010655:Phenylenediamines; C029728:4-phenylenediamine