NCI Study Finds Probable Connection Between Hair Straightener & Uterine Cancer
A recent National Institute of Environmental Health Sciences (NIEHS) report has shown an increased risk of uterine cancer among individuals that use chemical relaxers to straighten hair. Individuals that frequently used chemical relaxers (often defined as 4x per year) were over twice as likely to develop uterine cancer, as opposed to those who do not use chemical hair relaxers. In addition to uterine cancer, a 2021 study revealed women who frequently use relaxers are at an increased risk of developing ovarian cancer as well. As with uterine cancer, they are twice as likely to receive an ovarian cancer diagnosis se within their lifetime.
Chemical relaxers are used to straighten or relax curly hair by penetrating the hair cuticle and cortex layers to loosen the natural curl pattern. Treatments are repeated as needed to maintain the effect, which is now associated with higher risk of uterine cancer and other serious health conditions.
First Hair Relaxer Claim Filed
Since October 2022, numerous other hair relaxer lawsuits have now been filed. The first lawsuit filed alleges exposure to phthalates and additional endocrine-disrupting chemicals in hair relaxers used lead to the development of endometrial cancer at 28 years of age, requiring a full hysterectomy before age 30.
Brands relevant to the litigation include:
- Soft Sheen/Carson (Dark & Lovely and Optimum)
- Dabur International
- Namaste (Olive Oil Girls)
- Strength of Nature Global (Just for Me, Soft & Beautiful and Motions)
- Godrej Consumer Products
- PDC Brands
- Parfums de Coeur
Elevated Risk of Cancer – Chemical Hair Straightener Lawsuit