13 January 2004
WEN response to ‘Concentrations
of Parabens in Human Breast Tumours’
by Dr Philippa Darbre et al, Reading University,
published in the Journal of Applied Toxicology 12/1/04
Women’s Environmental Network welcomes Dr Darbre’s study as
a significant step towards understanding the role of parabens as a possible
factor in breast cancer.
It doesn’t show a causal link, but confirms that these oestrogen-mimickingchemicals
are contaminating our bodies and building up in breast tissue: that alone
should set alarm bells ringing and it begs the question, how many other
chemicals are getting into the breast from cosmetics? (See below)
- Chemicals
that build up in our tissues and breast have no place in our bodies,
and certainly don’t belong in products designed to be put on our
skin. It’s an infringement of our human rights that we’re
being contaminated without our knowledge or consent. WEN wants a precautionary
approach to these chemicals.
- While
such a question mark hangs over the safety of parabens, we urge consumers
to choose products that don’t contain them. See www.wen.org.uk/cosmetics
for a list of companies that say they don’t use parabens in any
of their products.
- We hope
the cosmetics industry acknowledges the significance of this research
in highlighting the need to remove parabens from products and to find
safer alternatives now.
- Breast
cancer is a complex, multi-factorial disease but what is known so far
about its causes doesn’t explain why the number of cases has doubled
in 20 years. The causes of 50-70% of cases remain unknown. We call on
the government, industry and cancer charities to take a precautionary
approach to any suspected risk factor.
Parabens
are not new
- Concerns
about parabens have been around for decades and some companies manage
to avoid them; we also suspect other companies have quietly removed
them from underarm cosmetics already. 1
- Parabens
are used in a whole range of cosmetics, including shower gels, shampoos,
moisturisers and make-up as well as deodorants/antiperspirants. WEN
found them in 57% of products when we did a random check for our new
cosmetics briefing, Getting Lippy: Cosmetics, Toiletries and the Environment,
published last month.
- Interestingly,
the paraben found at the highest levels in Dr Dabre’s study, methylparaben,
was also the most common one we found in the random check. We looked
at the ingredients of 76 products including soaps, shower gels, deodorants
and anti-perspirants, shampoos, moisturisers and make up. Methylparaben
was the third most frequently occurring ingredient, found in 49% of
products.
- In a quarter
of the tumours, the levels of parabens found was comparable to levels
found to stimulate the growth of breast cancer cells in a laboratory
tests. There is a suggestion, that at cellular level, parabens may work
with PCBs as mutagens to damage chromosomes3.
- The Reading study
follows several studies into the oestrogenic properties of parabens
or possible links between underarm cosmetics and breast cancer. The
most recent was a US study published in the European Journal of Cancer
Prevention, December 2003, based on a survey of 437 women with breast
cancer, that suggested a link between frequency of underarm cosmetics
use, shaving and age when diagnosed – the more frequent the use
the younger the age at diagnosis, on average. (K McGrath, Dept of Medicine,
Saint Joseph Hospital-Resurrection Health Care, Chicago, Illinois).
Other
chemicals are contaminating the breast too
- Flame
retardant chemicals were found last year in breast milk samples from
UK women, analysed by researchers at the University of Lancaster (Olga
I Kalantzi, Dept of Environmental Science, Lancaster University, 2003).
- Flame
retardants were also found in 47 breast milk samples tested by researchers
at the University of Texas Health Sciences Centre, published in November
2003. Concentrations of the poly-brominated diphenyl ethers (PBDEs)
detected were reported to be the highest in the world. (Environmental
Health Perspectives, 111, no 14, November 2003). The European Union
will officially ban two PBDEs because of their toxicity in August 2004
(ENDS Report, Sept 2003)
- Triclosan,
an anti-bacterial agent, was found in three out of five samples of human
milk by researchers at Stockholm University, Sweden, in 2002. Triclosan
can form dioxins (known cancer agents), when burnt or exposed to sunlight
and is toxic to fish. Swedish hospitals stopped using it several years
ago as they considered it unnecessary.
Breast milk
is still the healthiest food for the human baby as the nutritional and health
benefits it gives still outweigh the risks.
In June 2003 the UK Royal Commission on Environmental Pollution recommended
that “where synthetic chemicals are found in elevated concentrations
in biological fluids such as breast milk and tissues of humans, marine mammals
or top predators, regulatory steps should be taken to remove them from the
market immediately.” WEN’s
role
WEN has highlighted potential environmental links to breast cancer for
several years. We are calling for national action for the primary prevention
of breast cancer through reducing exposure to potential contributors whilst
research continues.
Ending the Cosmetics Cover-up is a project that provides public information
about risky chemicals in cosmetics and empowers people to take action.
In December 2003 WEN published Getting Lippy: cosmetics toiletries
and the environment, a briefing on the issue, and launched a dedicated
website at www.wen.org.uk/cosmetics.
Notes
1. Dr Dabre cites a 1971 study that reported that when methylparaben was
injected under the skin of lab rats it showed evidence of carcinogenic
behaviour (Mason et al). She also cites a 1995 survey that found parabens
in 99% of products (not just underarm cosmetics) designed to be left on
the body (Rastogi et al). This is a much higher use than WEN’s random
check suggests. A quick trawl of supermarket and chemists’ shelves
last week suggests they are now less prevalent in anti-perspirants/deodorants.
2. Getting Lippy: Cosmetics, Toiletries and the Environment and
a list of companies that don’t use parabens or synthetic fragrances
can be downloaded from www.wen.org.uk/cosmetics.
3. Ishidate et al, 1978.
4. Dr Dabre's
report is available free, from the Journal of Applied Toxicology website
until the end of January 2004. Click here: www.interscience.wiley.com/journal/jat
|