Use of hair dye and chemical hair straighteners may be associated with higher risk of breast cancer, according to new study.
The study looked at more than 46,000 women ages 35 to 74 over a span of six years.
Overall, the study found that regular use of permanent hair dye was associated with a 9% increased risk of developing breast cancer. The study also broke down the results by race and found that for white women in the study there was a 7% increased risk of developing breast cancer. For black women, the risk could be as high as 45% which the study suggests is likely due to different chemicals in hair products specifically for black women’s hair texture. For heavy use of hair dye the risk increased to 60% for black women and 8% for white women.Each woman in the study had a sister with breast cancer, making them part of a high-risk population, which makes the results of the study hard to extrapolate across the general population, according to Ashton.
In addition, the study showed association, not cause and effect, so it does not show a"direct causal link" between hair dye and breast cancer, noted Ashton.In this stock photo a women appears to have her hair colored."We don’t know the absolute risk here," said Ashton."We don’t know the absolute number of cases that could be tied to these findings.
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