Chemical hair-straightening products linked with uterine cancer risk

Driving the news: Researchers found that women who reported frequent use of hair straightening products were more than twice as likely to go on to develop uterine cancer compared to those who did not use the products.

• For the purpose of the study, which involved 33,497 American women, frequent use was defined as more than four times in the previous year.

What they're saying: Researchers noted that "the adverse health effects associated with straightener use could be more consequential for African American and/or Black women because of the higher prevalence and frequency of hair product use, younger age of initiating use, and harsher chemical formulations ... than other races and ethnicities."

• "Because Black women use hair straightening or relaxer products more frequently and tend to initiate use at earlier ages than other races and ethnicities, these findings may be even more relevant for them," said Che-Jung Chang, an author on the new study and a research fellow in the NIEHS Epidemiology Branch in a statement.

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