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Cancer risk studies raise questions about the safety of long-lasting hair dyes

Long-lasting hair dyes are popular, and their safety has been well researched. But new epidemiology studies show their use correlates with increased risk of breast cancer

by Melody M. Bomgardner
May 3, 2020 | A version of this story appeared in Volume 98, Issue 17
This photo shows a woman shopping for permanent hair color products.

Credit: iStock | Shoppers choose hair color not just for the shade but also for how long the color will last.

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