The chemicals were found in breast cancer tumours
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Chemicals from underarm deodorants and other cosmetics can build up
inside the body, according to a recent study.
British researchers have found traces of chemicals called parabens in
tissue taken from women with breast cancer. While there is no evidence parabens cause cancer, the scientists have
called for the use of parabens to be reviewed.
The cosmetics industry insists the chemicals, which are used as
preservatives and are approved for use by regulators, are safe.
Dr Philippa Darbre and colleagues at the University of Reading carried
out tests on samples of 20 different human breast tumours.
Writing in the Journal of Applied Toxicology, they say they found
traces of parabens in every sample.
Parabens have a very, very good safety profile
Chris Flower,
Cosmetic Toiletry & Perfumery Association
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Their tests suggested the chemicals had seeped into the tissue after
being applied to the skin.
"This is the first study to show their accumulation in human tissues,"
said Dr Darbre. "It demonstrates that if people are exposed to these chemicals, then
the chemicals will accumulate in their bodies."
'Drive Tumours'
Dr Darbre said there may be reason for people to be concerned about the
findings. "Their detection in human breast tumours is of concern since parabens
have been shown to be able to mimic the action of the female hormone
oestrogen," she said.
"Oestrogen can drive the growth of human breast tumours. It would
therefore seem especially prudent to consider whether parabens should
continue to be used in such a wide range of cosmetics applied to the
breast area including deodorants."
Dr Philip Harvey, European editor of the journal, said the findings
should be interpreted cautiously. "Further work is required to examine any association between
oestrogenic and other chemicals in underarm cosmetics and breast cancer."
We have an enormous amount of information which supports the
safety of these chemicals and their use in cosmetics
Chris Flower
Cosmetic Toiletry & Perfumery Association
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Chris Flower, director general of the UK's Cosmetic Toiletry &
Perfumery Association, welcomed the study. "It is welcome additional information and we will want to examine the
findings in detail," he told BBC News Online.
"However, parabens have a very, very good safety profile. We have an
enormous amount of information which supports the safety of these
chemicals and their use in cosmetics."
Caution
Delyth Morgan of Breakthrough Breast Cancer said: "This extremely small
study does not demonstrate a direct causal link between deodorant or
antiperspirant use and developing breast cancer. "Further research is needed to establish the source of the chemicals
found in the breast tumour samples and what, if any, the relationship is
to breast cancer."
A spokesman for the UK's Department of Trade and Industry said
government scientists would examine the findings. "Parabens are approved for use in the UK and in Europe and all the
information we have suggests they are safe to use. "However, British scientists will examine this study."
Dr Richard Sullivan, head of clinical programmes at Cancer Research UK,
said there was no evidence that deodorants were linked to an increased
risk of breast cancer. He said the latest study was very small, and had by no means produced
conclusive results. "The increased incidence we are seeing of breast cancer can be
explained by many other factors," he said
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