Hair Straightening and Uterine Cancer Risks


During this time, 378 women were diagnosed with uterine cancer. Those who frequently (four or more times per year) used hair straightening products had a 4.05% chance of developing the disease by age 70, compared to a 1.64% risk among women who did not use them.

Formaldehyde and heavy metals (such as nickel, arsenic, and chromium) are types of carcinogens, and Johnson-Arbor revealed they have been associated with cancer development.

- Che-Jung Chang, Katie M O’Brien, Alexander P Keil, Symielle A Gaston, Chandra L Jackson, Dale P Sandler, Alexandra J White, Use of Straighteners and Other Hair Products and Incident Uterine Cancer, JNCI: Journal of the National Cancer Institute, Volume 114, Issue 12, December 2022, Pages 1636–1645,
- Pattemore, C. (2022) Hair straightening and uterine cancer: What to know about the risks, Healthline. Available at: (Accessed: 07 December 2023).

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