CBC MARKETPLACE: HEALTH » BLACK
HENNA Products with
PPD Broadcast: December 2, 2003 <<main page
PPD in hair dye
Health Canada says most hair dye in this country
contains only 0.1% PPD or less. Some comes in concentrations
of between 0.3 and 1%. A few extreme black hair dyes range
from 3-10%. According to Health Canada, if you are sensitized
to PPD like Evan Kirk in our story was, the concentration
doesn't matter. You could react no matter what the concentration.
Health Canada strongly advises a "patch test" for
hair dye.
Products that contain paraphenylenediamine
(PPD)
Black hair dye, semi-permanent hair dyes,
fur dyes, printer's ink, photographic work and lithographic
work
It may sometimes be incorporated in rubber
processing for latex gloves or rubber support stockings
as well as in leather processing
A number of topical and oral preparations
can cross react with PPD and may cause significant allergic
reactions. They are:
PABA - used in sunscreens
Azo dyes - used to dye some textiles
Certain types of topical and local
anaesthetics
based on Ester groups. These include Benzocaine, Tetracaine
(Pontocaine) and Procaine (Novocain). There should be no
problem with Lidocaine (Xylocaine)
Thiazide diuretics
Sulfa drugs
Sulfonylurea - used in the treatment of diabetes
mellitus
Procainamide - used for cardiac arrhythmia
Source: Sunnybrook Hospital University
of Toronto Clinic
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