Toxic Chemicals Found in Nail Polishes - CHOICE # 406 (August 16,
2010)
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In the first-ever nail polish test conducted by the Consumer
Council, toxic chemicals and cancer-causing substances such as
methanol and benzene were found in some of the models, with
methanol detected at nearly 20 times higher than the specified
limit in one of the models.
The test covered 42 models of nail polishes and base coats which
prices ranged from HK$5 to HK$180. Tested substances included heavy
metals (lead, mercury and arsenic), phthalates and organic
compounds.
All the models had heavy metal content which was in compliance
with the limits specified in the Mainland's Hygienic Standard for
Cosmetics. Benzene, a cancer-causing substance, which must not form
part of the composition of cosmetic products, was detected in 4
models with concentration ranging from 9.7ppm to 260ppm. More
alarming was the finding that one of the 4 models also contained
41,000 ppm of methanol, nearly 20 times higher than the limit
(2,000ppm) specified in the Mainland standard.
DEHP, one of the phthalates which is prohibited for use as
ingredient in the production of cosmetics in the Mainland and EU,
was detected in one model with concentration level of 10 ppm. Some
animal studies showed that certain phthalates at high levels might
produce endocrine-disrupting effects and cause birth defects.
Toluene, which may be used as solvent in nail products, affects the
central nervous system and cause irritations of the respiratory
tract. A tested model was found with toluene concentration of 27%
which exceeded the 25% limit set in the Cosmetic Directive in the
European Union. Moreover, 0.03% of methyl methacrylate (MMA) was
detected in one tested model. Due to concern over allergic effects,
MMA is an organic compound which Health Canada advises not to use
in nail cosmetics.
Nail polishes may contain potentially harmful ingredients, and
the potential adverse health effects mainly depend on the
corresponding concentrations, route of exposure and exposure
duration. To minimize the health risk, nail polishes should be used
properly.
The August issue of CHOICE magazine advises consumers to take
heed of the followings when using nail polishes:
- Use in well-ventilated areas;
- Keep away from open flame and do not smoke;
- Keep out of reach of children.
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