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Article: PPD in hair dye blamed for jumping rates of allergy
- Article from:
- China Daily
- Article date:
- February 5, 2007
CopyrightCopyright 2007 China Daily. Provided by ProQuest LLC. (Hide copyright information)
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Rates of allergy to hair dye have jumped in several countries as
more and younger people color their tresses, European researchers
warn.
In an editorial in Saturday's British Medical Journal,
dermatologists say case reports from Britain, Belgium, Portugal,
Germany and Singapore suggest the incidence of the allergy is
increasing.
Para-phenylenediamine, or PPD, and its chemical cousins called
aromatic amines trigger the allergic reactions. Eczema may show up on
the face or around the hairline, and in severe cases, a patient's
face swells up leading to painful bruising that requires treatment in
hospital.
More than two-thirds of hair dyes currently contain PPD or related
chemicals, according to ...