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To Dye or Not To Dye? Permanent Hair Dyes

To Dye or Not To Dye? Permanent Hair Dyes

If you use permanent hair dyes at least once a month you should
know about a 2001 study from researchers at the University of
Southern California that analyzed the association between hair
dying activity and bladder cancer.

There was no association between semi-permanent or temporary
hair dyes and bladder cancer. (See Safer Ways to Color Your

While the study was not a clinical cancer trial, it did make a
determination of those who are at highest risk from use of
permanent dyes:

* Women who use permanent, hair dyes once a month for 1 year or longer have twice the risk of bladder cancer.

* Women who use permanent hair dyes for 15 or more years at least monthly have three times the risk of bladder cancer using permanent dyes for 15 or more years when the dyes are used monthly or more frequently.

* Those who have worked as hair dressers or barbers for 10 years or more have five times the risk of bladder cancer.

The researchers note that the exposure of concern is to a family of chemicals called Arylamines, an ingredient in many oxidative hair dyes, which is a known risk factor for bladder cancer and found to cause cancer in experimental animals.

The study was considered of enough concern in Europe that the European Commission, a body that drafts legislation for the European Union, has changed their policy to demand information from manufacturers about ingredients contained in hair dyes. The United States does not required manufacturers to file data on ingredients or report cosmetic-related injuries.

Darker hair dyes cause higher risk because of the increased number of chemicals.

Read more: Beauty, Hair Care, Health & Safety, Holistic Beauty

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Annie B. Bond

Annie is a renowned expert in non-toxic and green living. She was named one of the top 20 environmental leaders by Body and Soul Magazine and "the foremost expert on green living." - Body & Soul Magazine, 2009. Learn Annie's latest eco-friendly news on, a website dedicated to healthy and green living.


+ add your own
3:48AM PDT on Apr 20, 2013


7:05AM PDT on Apr 19, 2013


6:07PM PDT on Mar 30, 2013

Hmmm...interesting,thanks for the info!!

1:42PM PDT on May 15, 2012

thanks :)

12:46AM PDT on May 15, 2012

Thanks for the info.

11:21AM PDT on Apr 7, 2012


7:47PM PST on Jan 6, 2012

so not good news for those of us prematurely grey esp with dark hair. The silver worms are jsut not sexy;

11:34AM PST on Dec 28, 2011

Why is the U.S. always so far behind Europe when it comes to health issues????

10:20AM PST on Dec 27, 2011

Letting your hair age naturally can be a good thing.

6:45PM PST on Nov 6, 2011

Thanks for the info.

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Disclaimer: The views expressed above are solely those of the author and may not reflect those of
Care2, Inc., its employees or advertisers.

people are talking

Why do people harass their "beloved" cats ??

Lee - true, so true.

Great ideas, thanks Becky :)

I use it on skin, but not sure about eating it.

let me know when the video transcription is available for those who can't get the videos to play.


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