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The Study Revealing the Cancer Connection Caused By Hair Relaxers and Hair Straighteners
A major study by the National Institutes of Health revealed that frequent use of chemical hair-straightening products could put women at a higher risk of developing uterine cancer than those who did not.
The decade-long study tracked 33,497 the use of hair dyes, straighteners, relaxers, or pressing products by women in the United States between the ages of 35 and 74.
Although the study did not find that the relationship between straightener and uterine cancer differed by race, it warned that the impacts may be greater for Black women because of a higher prevalence of use.
About 60% of the participants self-identified as Black women in the study, which was published in the peer-reviewed Journal of the National Cancer Institute.
The study found that several chemicals found in straighteners—including parabens, bisphenol A, metals, and formaldehyde—might possibly contribute to the increased uterine cancer risk observed.
Chemical exposure from hair product use, especially straighteners, could be more concerning than other personal care products due to increased absorption through the scalp which may be exacerbated by burns and lesions caused by straighteners.
“We estimated that 1.64% of women who never used hair straighteners would go on to develop uterine cancer by the age of 70; but for frequent users, that risk goes up to 4.05%,” said Alexandra White, PhD, head of the NIEHS Environment and Cancer Epidemiology group and lead author of the study.
“This doubling rate is concerning. However, it is important to put this information into context - uterine cancer is a relatively rare type of cancer.”
The researchers used data from more than 33,000 women taking part in the Sister Study, a large, ongoing study looking for risk factors for breast cancer and other health conditions.
The Shield Legal Network team offers victims diagnosed with cancer after using hair relaxers and hair straightening products a free, private case evaluation to seek justice and potential compensation.
