Chemical Hair-Relaxers Linked to Uterine Cancer, Ovarian Cancer, Fibroids, Endometriosis, Infertility

Women all over the country who routinely used chemical hair-relaxers like Ultra Precise, Optimum, and Dark & Lovely are now pursuing legal claims against the manufacturers, alleging that the products caused them to develop uterine cancer, ovarian cancer, fibroids, endometriosis and other serious health problems. L’Oreal and other notable manufacturers of chemical straighteners and relaxers face a growing number of product liability lawsuits in state and federal courts nationwide. If you or someone you love has been diagnosed with uterine cancer, breast cancer, infertility, endometriosis, uterine fibroids, or any other health condition you believe may be related to the harmful chemicals found in hair straighteners and relaxers, contact us right away to discuss your legal options. You may be entitled to financial compensation for your injuries, which you can pursue by filing a chemical hair straightener lawsuit against the manufacturer.

Chemical Hair Straighteners Linked to Uterine Cancer, Other Health Risks

Relaxers and chemical hair straightener treatments use a solution of chemicals to break disulphide bonds in hair, thereby altering the hair’s structure.

A growing body of research has shown that toxic chemicals found in certain widely used hair products may put users at risk for cancer. In one new study conducted by the National Institutes of Health (NIH), researchers found that women who frequently used chemical hair-straightening products (defined as at least four times in the previous year) had more than double the risk of developing uterine cancer. The researchers noted that this uterine cancer risk may be highest among African American and/or Black women, who tend to use hair-straightening products more often and initiate use at a younger age. “Hair products may contain hazardous chemicals with endocrine-disrupting and carcinogenic properties,” the researchers wrote. “Previous studies have found hair product use to be associated with a higher risk of [other] hormone-sensitive cancers including breast and ovarian cancer.”


  • Ultra Precise
  • Dark & Lovely
  • Bantu
  • Optimum
  • Motions
  • Just for Me
  • ORS Olive Oil
  • African Pride
  • TCB Naturals
  • Luster’s
  • Africa’s Best
  • Creme of Nature
  • TCB
  • Mizani Rhelaxer
  • Soft & Beautiful
  • Ultra Sheen Supreme

Affected Women Pursuing Lawsuits Against L’Oreal, Other Beauty Brands

"The risk of being diagnosed with Uterine Cancer is nearly three times higher for women who regularly use chemical hair relaxers when compared to women who do not use these products."

This alarming research has prompted a wave of lawsuits filed by women who frequently used chemical hair straighteners or hair relaxers and were diagnosed with ovarian cancer and other adverse health outcomes. Last month, 32-year-old Jennifer Mitchell became one of the first women to sue L’Oreal and other cosmetic companies for a uterine cancer diagnosis she received in 2018. Mitchell underwent a full hysterectomy, removing her uterus and cervix, to prevent the cancer from spreading to the rest of her body. In another hair straightener lawsuit filed against L’Oreal and other beauty brands in federal court, 55-year-old Rhonda Terrell says she used chemical hair straighteners from the age of eight into her late 30s or early 40s. In 2019, she was diagnosed with an aggressive form of uterine cancer that has since spread to her liver and abdomen. She underwent chemotherapy and a radical hysterectomy (the removal of the uterus, ovaries, and cervix) to treat the cancer that she says she could have avoided, had L’Oreal and other companies provided proper warnings about the potential risk of side effects associated with their products. 

In the wake of the NIH study’s release in October 2022, manufacturers of popular hair relaxers and chemical hair-straightening products have been slammed for aggressively marketing their potentially dangerous products to women with naturally curly, textured, or frizzy hair. They have been accused of perpetuating the harmful myth that women of color should conform to certain beauty standards, while also possibly putting these women at risk for serious health problems. After all, approximately 60% of the women who reported using chemical hair straighteners in the NIH study self-identified as Black, and many of the lawsuits these manufacturers now face are being brought by Black women who say they were never warned that these products could put them at risk for cancer.

Find Out if You Qualify for Compensation

While the NIH study did not discuss specific chemical hair-straightener brands or ingredients, the researchers identified several toxic chemicals found in chemical hair straighteners – parabens, metals, bisphenol A, and formaldehyde – that they warned could possibly contribute to an increased cancer risk when absorbed through the scalp. Lead author Alexandra White notes that while the study does not definitively prove that hair-straightening products cause cancer, it is “the first [study] to show a possible link between frequent use of hair straightening products and uterine cancer.” 

Any woman of any race who has been diagnosed with cancer after frequent use of a chemical relaxer or hair straightener like Optimum, Dark & Lovely, or Ultra Precise may have grounds to file a product liability lawsuit against the manufacturer. Contact us as soon as possible to explore your possible compensation options.

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Did you or a loved one suffer Uterine Cancer, Ovarian Cancer, Enometrial Cancer, Fibroids Requiring Surgery, Endometriosis or Infertility after regular use of chemical hair straightening products or hair relaxers?

You may qualify for significant compensation.

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