Most women (and some men as well) have at least once in their life time dyed their hair to experiment with a new look.
While most people are aware of the costs of hair dye on wallet, many fail to consider the possible impact of hair dyes on their health, particularly with regards to cancer risk. The World Health Organization classifies artificial hair dye as a possible group 2B carcinogen, the category which also includes glyphosate, gasoline engine exhaust, and ionizing radiation.
In this article, we will explore the possible risks of hair dye on cancer and look at ways to minimize the risk.
The Science behind Hair Dyes
Hair dyes contain chemicals such as para-phenylenediamine, resorcinol, and ammonia, which work together to change the hair’s natural color.
These compounds penetrate the hair shaft and then bind to the hair’s natural pigment, thus making hair appear a different shade.
While hair dyes are approved by health agencies as safe, some of these chemicals can have adverse effects on our health.
In fact, the European Union has banned more than 1100 chemicals from their cosmetics industry, including some commonly used in hair dyes. The U.S. Food and Drug Administration (FDA), meanwhile, requires hair dye manufacturers to include a warning on their products that explicitly states the risk of certain ingredients such as para-phenylenediamine (PPD).
The Connection Between Hair Dyes and Cancer
Several studies have suggested that there may be a link between hair dyes and cancer, with mixed results.
In the late 1970s, researchers first discovered a link between the use of hair dye and an increased risk of a rare type of bladder cancer known as transitional cell carcinoma (TCC). Since then, several studies have suggested a correlation between hair dye use and increased levels of various cancers.
The International Agency for Research on Cancer (IARC) conducted an evaluation of hair dyes in 1993, which resulted in their classification as “possible carcinogens.” However, later findings have shown that the risk may be higher, particularly for those who frequently use hair dyes or started using them at a younger age.
Factors that Increase the Risk of Cancer
It’s important to note that certain factors can contribute to the increased risk of cancer.
One study published in the Journal of the American Medical Association (JAMA) found that women who used hair dye for more than 25 years had an increased risk of bladder cancer. However, the increased risk only applied to women who also smoked; there was no link between bladder cancer and hair dye use for nonsmokers.
Similarly, a study published in the American Journal of Epidemiology found that hormonal factors such as age at menopause, use of hormone replacement therapy (HRT), and number of pregnancies can increase the risk of breast cancer in women who use hair dyes.
Minimizing the Risk of Cancer
If you choose to use hair dye, there are several ways to minimize the risk of cancer, including:.
Choosing the Right Products
When shopping for hair dye, it’s important to read the labels and look for products that use less toxic chemicals. Some companies offer hair dyes that are free of certain carcinogenic chemicals, such as PPD, ammonia, and resorcinol.
You can also choose products that are made with natural ingredients, such as henna or vegetable dyes.
Minimizing Exposure
The longer you leave the hair dye on your head, the more likely it is that the chemicals will penetrate your skin and scalp. Try to leave the dye on for as little time as possible and avoid touching the dye with your bare hands.
Wear gloves and move to a well-ventilated area to avoid inhaling the fumes.
Alternatives to Hair Dye
If you want to experiment with a new hair color without risking the potential health effects of hair dyes, there are alternatives you can try.
For example, you can use wigs, hair extensions, or temporary hair color that will wash out after a few washes.
Conclusion
The link between hair dyes and cancer is still somewhat uncertain, but there’s ample evidence to suggest that certain chemicals commonly found in hair dyes can have an adverse effect on our health.
If you choose to use hair dye, make sure you follow safety protocols, such as minimizing exposure, choosing less toxic products, and seeking alternatives when possible. With the right choices, you can maintain your desired look without putting your health at risk.