USA – Black women who dye hair more at risk of breast cancer

The study found that African-American women who regularly use permanent hair dye are more likely to develop the disease

Women who regularly use permanent hair dye have an increased risk of developing breast cancer, a new study suggests.

Scientists at US research body National Institutes of Health found that women who use the hair colouring products are 9% more likely to be diagnosed with the disease.

Out of the 46,709 female consumers studied over eight years who dyed their hair every five to weeks, African-American women were 60% more likely to develop breast cancer, compared with 8% of Caucasian women.

The research team found little to no increase in breast cancer risk for semi-permanent or temporary dye use…