What type of uterine cancer is linked to hair relaxers?

The Sister Study found an association between hair straightener use and uterine cancer broadly, including endometrial carcinoma (the most common type). The mechanism — chronic estrogen overstimulation from EDCs — primarily drives Type I endometrial cancers (estrogen-dependent). However, all uterine cancer subtypes diagnosed after regular relaxer use may be eligible for the lawsuit.

I had a hysterectomy for uterine cancer. What is my case worth?

Uterine cancer cases requiring hysterectomy are projected in the $200,000–$750,000 range based on comparable mass tort outcomes. Younger women (under 50) and those with advanced-stage disease may fall in the higher range due to greater life impact and loss of fertility. No cases have settled yet — these are attorney projections based on comparable litigation.

Do I qualify for a hair relaxer lawsuit?

Cancer cases (uterine and ovarian) are the strongest claims and are eligible for the bellwether trial pool of approximately 5,230 cases.

Does the Sister Study prove causation?

The Sister Study demonstrates a strong statistical association (HR 2.55) with a dose-response relationship, biological plausibility (EDC estrogen mimicry), and consistency across multiple studies. Whether this establishes legal causation sufficient for trial is what the Daubert hearings (April–June 2026) will determine. If plaintiffs' experts survive Daubert, the science is strong.

How much is a hair relaxer lawsuit worth?

No cases have settled or gone to trial yet. Attorney estimates project: $90,000–$150,000 for fibroids requiring hysterectomy; $200,000–$750,000 for uterine/endometrial cancer; $300,000–$1,000,000+ for ovarian cancer or young-adult uterine cancer. Comparable mass tort settlements — talcum powder ($6.5B for ~60,000 claimants) and Roundup ($10.9B) — provide benchmarks.

How is ovarian cancer from hair relaxers different from talcum powder ovarian cancer?

Both involve consumer products marketed to women causing ovarian cancer through chronic exposure. The mechanism differs: talcum powder is believed to cause inflammation through direct application to the genital area, while hair relaxer EDCs are absorbed through the scalp and disrupt hormones systemically. The J&J talcum powder settlement ($6.5B) provides a relevant valuation benchmark.

I was diagnosed with ovarian cancer but also used talcum powder. Can I still file?

Yes. You can potentially pursue claims in both the hair relaxer and talcum powder litigations. Each product's contribution to your cancer risk is a separate legal question. Your attorney can help determine whether to file in one or both litigations. Multiple exposure sources do not eliminate any individual defendant's liability.

Is ovarian cancer from hair relaxers harder to prove than uterine cancer?

The uterine cancer evidence (HR 2.55) is somewhat stronger than the ovarian cancer evidence (HR 2.19) in terms of hazard ratio. However, both are statistically significant. The bellwether pool includes both uterine and ovarian cancer cases, suggesting the court views both as viable claims.

What about heat-based straighteners (flat irons)?

The MDL specifically targets chemical hair relaxers and chemical straightening treatments — products containing EDCs that are absorbed through the scalp. Heat-based straighteners (flat irons, hot combs) that do not involve chemical application are NOT included in this litigation. However, some "keratin treatments" or "Brazilian blowouts" that use formaldehyde-based chemicals may be covered.

Is endometriosis included in the bellwether trial pool?

No. The bellwether trial pool is limited to approximately 5,230 cases involving uterine, endometrial, or ovarian cancer. Endometriosis and fibroid claims remain in the MDL but are not part of the bellwether process. These claims will likely be resolved after cancer cases establish precedent values.

Is Revlon still a defendant despite filing bankruptcy?

Yes. Revlon filed Chapter 11 bankruptcy in June 2022 but emerged in late 2023. Revlon maintains insurance coverage for hair relaxer claims and allocated approximately $44 million in its reorganization plan for relaxer victim compensation. Claims against Revlon follow the bankruptcy court's procedures but can still be pursued through the MDL.

I have endometriosis and had multiple surgeries. Is my case strong?

Multiple surgeries for endometriosis indicate severe disease and higher damages. While endometriosis claims are in a lower tier than cancer claims, surgical endometriosis with documented impact on fertility and quality of life can be compensable. Document all surgeries, fertility treatments, pain management, and lost work.

When will the first trial happen?

Bellwether trials are expected in mid-2027. The current timeline: each side selected 20 bellwether candidates in April 2025; case-specific discovery closed February 2026; 10 trial cases will be finalized by spring 2026; Daubert hearings on expert testimony are April–June 2026; first trials will follow Daubert rulings.

Can hair relaxers cause infertility?

EDCs in hair relaxers are linked to multiple conditions that cause infertility: endometriosis (affects fertility in 30–50% of cases), uterine fibroids, hormonal disruption, and earlier puberty onset. If you used hair relaxers regularly and experienced infertility, discuss potential claims with an attorney — particularly if you also have a diagnosis of endometriosis or fibroids.

What did the FDA do about hair relaxer chemicals?

The FDA proposed banning formaldehyde from hair straighteners in October 2023, but has missed every self-imposed deadline (April 2024, November 2024, March 2025, July 2025, December 2025). Prior to the 2022 MoCRA law, the FDA had minimal authority over cosmetic safety. The regulatory failure to act — despite decades of evidence — supports the litigation.

Can I file a lawsuit for uterine fibroids?

Yes, though fibroid claims are in a lower compensation tier than cancer claims. If you used hair relaxers regularly and were diagnosed with uterine fibroids — particularly if you required hysterectomy or other surgical intervention — you may have a valid claim. Fewer law firms are actively handling fibroid-only cases, so consult multiple attorneys.

Should I file now or wait for bellwether results?

File now. The statute of limitations is running regardless of the MDL timeline. Filing preserves your claim and ensures you are in the MDL pipeline when settlement programs are established. There is no advantage to waiting — bellwether outcomes will inform your case value, but you must be filed to benefit.

My daughter used "Just for Me" as a child. Can she file a lawsuit?

Potentially yes. "Just for Me" (made by Godrej/Namaste) was marketed specifically to Black children. If your daughter developed any qualifying condition (uterine cancer, ovarian cancer, endometriosis, fibroids) after childhood relaxer use, she may have a claim. Childhood EDC exposure during critical developmental windows is particularly concerning and may strengthen the case.

How are individual settlement amounts calculated in an MDL?

If a global settlement is reached, a settlement administrator creates a point-based system considering: cancer type and severity, age at diagnosis, duration and frequency of relaxer use, specific products used (matching named defendants), medical expenses and lost income, and other damages. Higher-severity injuries and stronger causation evidence receive more points and higher payments.

L'Oréal is the world's largest beauty company with approximately €38.26 billion in global revenue (2022). The company operates in 150+ countries. Its U.S. subsidiary L'Oréal USA and SoftSheen-Carson are the primary hair relaxer defendants. L'Oréal has the financial capacity to fund substantial settlements.

I used Dark & Lovely for 20 years. Is L'Oréal liable?

Dark & Lovely, manufactured by SoftSheen-Carson (a L'Oréal subsidiary), is one of the most commonly cited products in the litigation. Twenty years of regular use represents significant cumulative EDC exposure. L'Oréal is alleged to have known or should have known about the EDC content and cancer risk, yet continued marketing without warnings.

Can L'Oréal argue they didn't know the chemicals were dangerous?

This defense is weakened by: (1) formaldehyde has been a known carcinogen for decades; (2) phthalates and parabens have been identified as EDCs since the 1990s; (3) L'Oréal is a sophisticated cosmetics company with extensive R&D capabilities; and (4) 84% of EDCs were unlabeled, suggesting deliberate omission rather than ignorance.

Can I still recover from Revlon despite the bankruptcy?

Yes. Revlon's reorganization plan allocated approximately $44 million for hair relaxer victim claims, and the company maintains insurance coverage. The Plaintiffs' Steering Committee filed a claim in the bankruptcy proceeding protecting all potential Revlon product plaintiffs. Recovery may come through the bankruptcy allocation and/or insurance proceeds.

I used Creme of Nature for years. How do I file against Revlon?

Creme of Nature is a Revlon product included in the MDL. Because of Revlon's bankruptcy, claims follow specific procedures: file in the MDL consistent with the bankruptcy court's order. Your attorney will handle the procedural requirements. The key is documenting your use of Creme of Nature products and your qualifying diagnosis.

What about other Revlon products — are permanent hair dyes included?

The MDL focuses specifically on chemical hair relaxers and straighteners — products that use alkaline chemicals to alter hair structure. Permanent hair dyes are a different product category with different chemical compositions. However, some hair treatments combine relaxing and coloring chemicals, which may be included. Consult your attorney about your specific product usage.

Are "no-lye" relaxers safer than lye-based relaxers?

No-lye relaxers (using guanidine carbonate instead of sodium hydroxide) still contain EDCs — phthalates, parabens, formaldehyde-releasing agents, and cyclosiloxanes. The "no-lye" label refers only to the active straightening agent, not the other chemicals in the formulation. Both lye and no-lye relaxers are included in the litigation.

Hair Relaxer Endometriosis - Hair Relaxer Cancer Lawsuits

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How EDCs Promote Endometriosis

Endometriosis occurs when tissue similar to the uterine lining grows outside the uterus — on the ovaries, fallopian tubes, and pelvic peritoneum. This tissue responds to hormonal signals, growing and bleeding with the menstrual cycle. EDCs in hair relaxers that mimic estrogen can promote the growth and survival of endometrial implants, worsening the condition.

Symptoms and Impact

Endometriosis causes chronic pelvic pain, extremely painful periods, pain during intercourse, painful bowel movements and urination, and infertility (affecting 30–50% of women with the condition). The disease significantly impacts quality of life and can require multiple surgeries.

Legal Considerations for Endometriosis Claims

Endometriosis claims are not in the bellwether pool (which is limited to cancer cases), but they are part of the broader MDL 3060. Endometriosis claims generally have lower projected values than cancer claims but are still compensable — particularly when surgical intervention was required.

Medical Documentation

Endometriosis is definitively diagnosed through laparoscopic surgery and pathological confirmation. Key evidence includes surgical records, pathology reports, fertility treatment records, and documentation of chronic pain management and its impact on daily life.

Research & evidence

Scientific Evidence

Hair Relaxer Use and Risk of Uterine Cancer in the Black Women's Health Study

Bertrand KA, Coogan PF, Palmer JR (2023). Environmental Research

View on PubMed

Use of Straighteners and Other Hair Products and Incident Uterine Cancer

Chang CJ, O'Brien KM, Keil AP, Gaston SA, Jackson CL, Sandler DP, White AJ (2022). Journal of the National Cancer Institute

View on PubMed

Use of Hair Products in Relation to Ovarian Cancer Risk

White AJ, Sandler DP, et al. (2021). Carcinogenesis

View on PubMed

FAQ

Frequently Asked Questions

36 QUESTIONS

Chemical hair relaxers contain endocrine-disrupting chemicals (EDCs) — phthalates, parabens, formaldehyde, BPA, and cyclosiloxanes — that mimic estrogen when absorbed through the scalp. Chronic estrogen overstimulation promotes abnormal growth in hormone-sensitive tissues. The NIH Sister Study found that frequent relaxer users face a 155% increased risk of uterine cancer and a 119% increased risk of ovarian cancer.

Named defendant products include: Dark & Lovely (L'Oréal/SoftSheen-Carson), Optimum Care, ORS Olive Oil (Namaste/Godrej), Just for Me (Godrej), Creme of Nature (Revlon), Motions (Strength of Nature), Elasta QP, Affirm (Avlon), and others. If you used any chemical hair relaxer or straightening product regularly, consult an attorney — even products not yet named may be added as the litigation evolves.

Yes. Black women were the primary marketing target for chemical hair relaxers and used the products more frequently and from younger ages than other racial groups. Approximately 60% of straightener users in the Sister Study were Black women. Black women also die of uterine cancer at twice the rate of white women. The racial justice dimension — products marketed to Black communities with undisclosed carcinogens — is central to the litigation.

Yes. Cancer can develop years or decades after chemical exposure. The statute of limitations typically runs from when you were diagnosed or when you learned (or should have learned) about the connection between relaxers and cancer — not from when you last used the product. If you used relaxers regularly and later developed cancer, you may have a valid claim regardless of when you stopped using them.

The Daubert hearings (April–June 2026) are the most critical near-term event. If the court excludes plaintiffs' general causation experts, the litigation could face serious challenges — similar to the Zantac MDL, which resulted in defense verdicts after Daubert exclusions. However, the hair relaxer evidence (multiple studies, biological plausibility, dose-response) is considered stronger than the Zantac evidence.

Formaldehyde is considered the most acutely dangerous — it is a classified carcinogen that forms DNA adducts leading to genomic instability. However, the chronic danger comes from the combined effect of multiple EDCs: phthalates, parabens, and cyclosiloxanes collectively disrupt the endocrine system over years of repeated exposure. The FDA has proposed banning formaldehyde (though the ban remains unfinalized).

Each application involves applying chemical paste to the entire scalp for 15–45 minutes, during which the scalp barrier is chemically compromised. The burning sensation indicates active barrier breach and enhanced absorption. Testing shows high concentrations of phthalates, parabens, and cyclosiloxanes in each application. With 4+ applications per year over many years, cumulative exposure is substantial.

The CROWN Act (Creating a Respectful and Open World for Natural Hair) prohibits employment and educational discrimination based on hair texture. While not directly a chemical safety law, CROWN Act proponents argue that hair discrimination created the coercive pressure that drove Black women to use chemical relaxers — making the discrimination itself a contributing cause of the chemical exposure. Over 24 states have enacted CROWN Act legislation.

"Just for Me" (made by Godrej/Namaste) was explicitly marketed to and used on Black girls, introducing EDC exposure during critical childhood developmental windows. Early-life exposure to estrogen-mimicking chemicals can alter reproductive development and increase lifetime cancer susceptibility. The marketing of chemical relaxers to children is particularly damaging to the defendants' position in the litigation.

While the lawsuit specifically targets chemical hair relaxer exposure, uterine cancer has many risk factors beyond relaxer use. If you never used chemical hair relaxers, the connection may not apply to your situation. However, other hair products (Brazilian blowouts, keratin treatments) containing formaldehyde may also be relevant. Consult an attorney if you used any chemical hair straightening products.

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The full investigation

Part of the Hair Relaxer Cancer Investigation

Hair Relaxer Cancer LawsuitsChemical hair relaxers and straighteners contain endocrine-disrupting chemicals (EDCs) — including phthalates, parabens, formaldehyde, and cyclosiloxanes — that mimic estrogen and disrupt the hormonal system. The NIH/NIEHS Sister Study (2022) found that women who frequently used these products faced more than double the risk of uterine cancer. Over 14,700 lawsuits are consolidated in MDL 3060 in the Northern District of Illinois, with bellwether trials expected in 2027. The litigation disproportionately affects Black women, who were the primary marketing target and comprise approximately 60% of affected users.CASE OVERVIEW

Hair Relaxer Endometriosis

Quick Eligibility Review

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How EDCs Promote Endometriosis

Symptoms and Impact

Legal Considerations for Endometriosis Claims

Medical Documentation

Scientific Evidence

Hair Relaxer Use and Risk of Uterine Cancer in the Black Women's Health Study

Use of Straighteners and Other Hair Products and Incident Uterine Cancer

Use of Hair Products in Relation to Ovarian Cancer Risk

Frequently Asked Questions

What is the connection between hair relaxers and cancer?

What type of uterine cancer is linked to hair relaxers?

Which hair relaxer products are included in the lawsuit?

I had a hysterectomy for uterine cancer. What is my case worth?

Do I qualify for a hair relaxer lawsuit?

Does the Sister Study prove causation?

How much is a hair relaxer lawsuit worth?

How is ovarian cancer from hair relaxers different from talcum powder ovarian cancer?

Are Black women specifically affected by this lawsuit?

I was diagnosed with ovarian cancer but also used talcum powder. Can I still file?

I stopped using hair relaxers years ago. Can I still file?

Is ovarian cancer from hair relaxers harder to prove than uterine cancer?

What about heat-based straighteners (flat irons)?

Is endometriosis included in the bellwether trial pool?

Is Revlon still a defendant despite filing bankruptcy?

I have endometriosis and had multiple surgeries. Is my case strong?

When will the first trial happen?

Can hair relaxers cause infertility?

What did the FDA do about hair relaxer chemicals?

What happens if the Daubert hearing goes badly for plaintiffs?

Can I file a lawsuit for uterine fibroids?

Should I file now or wait for bellwether results?

My daughter used "Just for Me" as a child. Can she file a lawsuit?

How are individual settlement amounts calculated in an MDL?

How big is L'Oréal?

I used Dark & Lovely for 20 years. Is L'Oréal liable?

Can L'Oréal argue they didn't know the chemicals were dangerous?

Can I still recover from Revlon despite the bankruptcy?

I used Creme of Nature for years. How do I file against Revlon?

What about other Revlon products — are permanent hair dyes included?

What is the most dangerous chemical in hair relaxers?

Are "no-lye" relaxers safer than lye-based relaxers?

How much chemical exposure do you get from a single application?

Is the CROWN Act related to the hair relaxer lawsuit?

Why were products marketed to children ("Just for Me")?

I'm a Black woman who never used relaxers but got uterine cancer. Is this related?

Related Guides

Part of the Hair Relaxer Cancer Investigation