Two Missouri hairstylists recently reached a landmark $30 million settlement in a product liability lawsuit against a manufacturer of professional hair-smoothing products allegedly containing formaldehyde, a known carcinogen. The chemical hair straightener settlement highlights growing concerns about exposure to toxic chemicals in popular hair products and salon environments, and adds momentum to the increasing number of hair relaxer lawsuits filed nationwide.
Details of the Chemical Hair Relaxer Settlement
The confidential chemical hair straightener settlement was brought by two salon professionals who reportedly used the hair-smoothing product for over a decade. According to the plaintiffs’ attorney, one stylist developed both uterine and ovarian cancer following prolonged exposure to the product. The second stylist was pregnant during her exposure period, and her child subsequently developed leukemia.
The identities of the plaintiffs, the specific product, and the manufacturer remain unnamed under settlement terms. However, the lawsuit and subsequent settlement raise significant questions about formaldehyde exposure in salon environments and the potential health risks associated with chemical hair straighteners for both hair stylists and everyday consumers.
Formaldehyde Exposure and Potential Health Risks
The chemical hair straightener lawsuit centered on allegations that the hair-smoothing product contained formaldehyde, a chemical classified as a known human carcinogen by the International Agency for Research on Cancer. Formaldehyde exposure, which can occur via inhalation, absorption through the skin, or eating foods or drinking liquids containing formaldehyde, has been linked to various health conditions, including certain types of cancer.
According to the plaintiffs’ attorney, the manufacturer’s conduct was particularly troubling because the company allegedly denied the presence of formaldehyde in its product. “That’s how they advertised it. That’s how they marketed it because a concern in the hairstylist world was exposure to formaldehyde,” the defense team stated.
The manufacturer reportedly argued that the product contained a different substance that only released formaldehyde when heated. However, the plaintiffs’ attorney countered that the product was specifically designed to be heated during application, and the stylists had used it according to the manufacturer’s directions.
Growing Concerns About Chemical Hair Products
This hair relaxer settlement comes amid increasing scientific evidence linking chemical hair straighteners and relaxers to serious health conditions. Research from the National Institutes of Health has suggested that women who frequently use chemical hair-straightening products may have more than double the risk of developing uterine cancer compared to those who don’t use such products.
The NIH study, published in the Journal of the National Cancer Institute in October 2022, examined data from over 33,000 women and found that those who used chemical hair straighteners more than four times a year had a significantly elevated risk of uterine cancer. The researchers noted that these findings might be particularly relevant for Black women, who tend to use hair relaxer products more frequently and often begin use at earlier ages than women of other racial and ethnic backgrounds.
In addition to uterine cancer, chemical hair straighteners containing ingredients like formaldehyde, bisphenol A, parabens, and phthalates have allegedly been associated with other health conditions, including:
- Ovarian cancer
- Breast cancer
- Endometriosis
- Uterine fibroids
- Reproductive issues
A Lack of Regulatory Oversight in the Cosmetics Industry
The Missouri lawsuit highlighted what was described as surprisingly limited regulation in the cosmetics industry. While the Food and Drug Administration holds some authority, particularly regarding product labeling, many consumer advocates argue that oversight remains insufficient to protect salon professionals and consumers.
Unlike pharmaceutical products, cosmetics and salon products don’t require FDA approval before entering the market. Manufacturers are responsible for ensuring product safety, but critics contend this self-regulation model may prioritize profits over potential health concerns.
The chemical hair straightener settlement underscores the importance of transparency in product ingredients and the potential consequences when manufacturers allegedly misrepresent the contents of their products, particularly when those products may contain harmful substances like formaldehyde.
Hair Relaxer Multidistrict Litigation
Numerous hair relaxer lawsuits have been filed against major manufacturers like L’Oreal, SoftSheen-Carson, and Strength of Nature, alleging that their chemical straightening products caused cancer and other serious health conditions.
In February 2023, the Judicial Panel on Multidistrict Litigation consolidated federal hair relaxer lawsuits into a multidistrict litigation (MDL) in the Northern District of Illinois. This consolidation allows for coordinated pretrial proceedings while preserving each plaintiff’s right to an individual outcome.
Safer Alternatives to Chemical Hair Straighteners
As concerns about potential chemical hair straightener side effects continue to grow, many consumers are seeking safer alternatives. Some possible options include:
- Heat styling: Using flat irons or blow dryers to temporarily straighten hair without chemicals
- Natural straightening methods: Relaxer treatments using coconut milk, oils, or other natural ingredients
- Keratin treatments: Some newer formulations advertise being formaldehyde-free, though consumers should research ingredients carefully
- Embracing natural texture: Many women are choosing to forgo straightening altogether and embrace their natural hair texture
Health advocates recommend that those who continue using chemical hair straighteners ensure proper ventilation, follow product instructions carefully, and consider reducing the frequency of use to minimize the potential risk of toxic exposure.
Looking Forward: Industry Implications
Substantial settlements like the one in Missouri may prompt changes within the hair care industry, potentially leading to:
- Increased transparency about product ingredients
- More rigorous testing for carcinogenic compounds
- Enhanced warning labels about potential risks
- Development of safer formulations
For salon professionals who work with these products daily, and for consumers who use them regularly, this settlement highlights the importance of product safety and the right to know about potential safety risks.
Hair Straightener Lawsuit Information
Formaldehyde and Cancer Risk, American Cancer Society
Hair Straightener Lawsuits, Leading Justice

