(Reuters Health) - African-American and white women who regularly chemically straighten their hair or dye it dark brown or black have an elevated risk of breast cancer, new research suggests.
“I would be concerned about darker hair dye and hair straighteners,” epidemiologist Tamarra James-Todd said after reviewing the report online now in the journal Carcinogenesis. “We should really think about using things in moderation and really try to think about being more natural."
“Just because something is on the market does not necessarily mean it’s safe for us,” she said in a phone interview. James-Todd, a professor at the Harvard T.H. Chan School of Public Health in Boston, was not involved with the new research.
The study of 4,285 African-American and white women was the first to find a significant increase in breast cancer risk among black women who used dark shades of hair dye and white women who used chemical relaxers.