Women who developed uterine or ovarian cancer after long-term use of chemical hair relaxers may be eligible to file a chemical hair straightener lawsuit and seek compensation. For decades, millions of women trusted these popular cosmetic products to be safe. However, a study by the National Institutes of Health (NIH) revealed a troubling link between chemical hair straighteners and a significantly increased risk of cancer.

If you were diagnosed with cancer following long-term use of chemical hair relaxers, you may be entitled to seek justice and financial recovery. These lawsuits aim to hold manufacturers accountable for failing to disclose serious health risks associated with their products.

Based in Dallas, Ferrer Poirot Feller represents clients nationwide who have been harmed by dangerous or defective products. With decades of experience, we provide compassionate, personalized legal support. Schedule your free, confidential case evaluation today at (888) 485-8844.

Understanding the Cancer Risk Associated With Chemical Hair Straighteners

For years, many women have reported adverse effects such as scalp burns, hair thinning, and irritation after using chemical hair relaxers. While these short-term reactions are concerning, current lawsuits focus on far more serious long-term health consequences. 

Recent studies have identified a possible link between chemical hair straighteners and an increased risk of hormone-sensitive cancers, particularly uterine cancer. This connection has gained national attention following a pivotal study by the National Institute of Environmental Health Sciences (NIEHS), a division of the U.S. Department of Health and Human Services.

NIH Study Connects Hair Relaxer Use to Uterine Cancer

hair straightening

In 2022, the National Institute of Environmental Health Sciences (NIEHS), a division of the National Institutes of Health (NIH), published data from the Sister Study, a long-term health study that followed over 33,000 women for more than a decade. The findings raised serious concerns among public health experts.

According to researchers, women who reported frequent use of chemical hair straightening products were more than twice as likely to develop uterine cancer compared to those who did not use these products. The study estimated that 4.05 percent of frequent users would be diagnosed with uterine cancer by age 70, compared to only 1.64 percent of women who never used the products. The elevated risk is particularly concerning for Black women, who are more likely to begin using relaxers at an early age and use them more frequently.

Health Conditions Named in Hair Relaxer Lawsuits

Based on the Sister Study and additional scientific research, individuals who used chemical hair straighteners and were later diagnosed with specific health conditions may be eligible to file a lawsuit. Conditions most commonly named in litigation include:

  • Uterine cancer (including endometrial cancer)
  • Ovarian cancer
  • Endometriosis
  • Uterine fibroids

Plaintiffs allege that manufacturers failed to warn consumers about the known risks associated with long-term use of their products.

Harmful Chemicals Found in Hair Straightening Products

Hair Straightener Chemical

The increased cancer risk is believed to be caused by endocrine-disrupting chemicals (EDCs) and other carcinogenic substances found in many hair relaxers. These chemicals can enter the body through the scalp, particularly when there are burns or open lesions.

Common chemicals of concern include:

  • Phthalates, which are known to interfere with hormone function
  • Formaldehyde, a recognized human carcinogen according to the National Cancer Institute (NCI)
  • Parabens, which can mimic estrogen in the body
  • Other chemical byproducts that may form during use or degrade over time

In many instances, these hazardous substances are not disclosed on product labels. They may enter the product unintentionally as contaminants or form over time through the chemical breakdown of preservatives or other ingredients used in the formulation.

Cosmetic Safety and Regulatory Oversight

Unlike prescription or over-the-counter drugs, cosmetic products do not require premarket approval by the U.S. Food and Drug Administration (FDA). This allows companies to develop and sell products such as chemical hair relaxers without first submitting them for government safety evaluation.

Manufacturer Responsibility Under the FD&C Act

According to the Federal Food, Drug, and Cosmetic Act (FD&C Act), manufacturers are legally responsible for ensuring the safety of their cosmetic products. However, they are not required to conduct independent safety testing or submit any data to the FDA before marketing their products. The FDA typically intervenes only after a product has been found to be adulterated or misbranded.

Regulatory Gaps Leave Consumers at Risk

This limited regulatory structure has created serious gaps in consumer protection. Potentially harmful substances such as endocrine-disrupting chemicals (EDCs) and known carcinogens like formaldehyde may be present in cosmetic formulations. These chemicals can be included intentionally or can develop as contaminants or byproducts during manufacturing or product degradation.

Since manufacturers are not required to disclose all impurities or byproducts, product labels may not fully reveal potential chemical exposures. As a result, consumers may unknowingly apply harmful substances to their skin and scalp.

The lack of regulatory oversight is a central issue in current hair relaxer litigation. Lawsuits claim that manufacturers failed in their duty to protect public health by withholding information about the presence and risks of hazardous ingredients. 

Plaintiffs argue that companies knew, or should have known, about the link between long-term product use and serious health outcomes such as hormone-sensitive cancers. Current lawsuits allege that by failing to warn users, manufacturers denied individuals the right to make informed decisions

Federal Warranty Law and Consumer Protection

The Magnuson-Moss Warranty Act is a federal law that protects consumers when companies make promises about their products. If a manufacturer claims that a product is safe and that claim turns out to be false, the law may give consumers the right to take legal action.

Even when there is no formal written warranty, statements made in advertisements, on labels, or in marketing materials can still count as promises under this law. For example, if a hair relaxer is marketed as safe for long-term use but contains harmful chemicals, the company may be held responsible.

Although not the primary legal basis, the law can strengthen a claim by providing an additional avenue to demonstrate that manufacturers failed to protect consumers. It supports the broader effort to hold companies accountable for putting unsafe products on the market without proper warnings.

Calls for Reform and Recent Legislative Developments

In response to growing concerns, public health advocates and legal experts have pushed for stronger consumer protections. These include clearer labeling requirements, full ingredient transparency, and mandatory safety testing. 

In 2022, Congress enacted the Modernization of Cosmetics Regulation Act (MoCRA) to expand the FDA’s authority over cosmetic products and enhance safety standards. Although MoCRA marks a major advancement in regulatory oversight, its provisions are being rolled out gradually through 2025 and beyond. Still, many experts argue that further reforms are necessary to close regulatory gaps and ensure comprehensive oversight.

Who Can Be Held Liable for a Hair Relaxer Injury?

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The ongoing chemical hair straightener litigation is based on product liability claims, with a focus on allegations of manufacturer negligence. These lawsuits assert that major cosmetic companies have spent decades promoting hair relaxers to women, particularly women of color, while failing to disclose the potential long-term health risks associated with their use.

At the heart of these lawsuits is a failure-to-warn claim. Plaintiffs argue that these manufacturers knew, or should have known, that their products contained endocrine-disrupting chemicals (EDCs) and carcinogens are associated with hormone-sensitive cancers, such as uterine and ovarian cancer. Despite this knowledge, the companies did not provide adequate warnings or safety information, thereby preventing consumers from making informed decisions about their health.

Several large corporations have been named as defendants in these cases. These include L’Oréal, Revlon, and the makers of widely used brands such as Dark & Lovely, Just for Me, and Motions. The lawsuits seek to hold these companies accountable for placing consumers at risk by failing to prioritize safety and transparency.

How We Build a Chemical Hair Straightener Lawsuit

Pursuing a product liability claim against a major manufacturer requires a strategic and evidence-based approach. Our legal team manages every phase of the process with care and precision.

We begin with a free, confidential case evaluation to review your product use and medical history. This initial consultation helps us determine whether you may have a valid legal claim.

If you decide to proceed, we launch a thorough investigation, we conduct a thorough investigation, gathering medical records to establish a clear timeline of your diagnosis and documenting your use of hair relaxers through personal testimony, salon records, or other supporting evidence.

A crucial part of the case involves expert scientific testimony. We work with leading medical professionals, including oncologists and toxicologists, who can offer authoritative opinions linking long-term exposure to chemicals in hair relaxers with your specific type of cancer.

Navigating the Hair Relaxer Multidistrict Litigation (MDL)

Thousands of hair relaxer lawsuits filed across the country have been consolidated into a Multidistrict Litigation (MDL) in the U.S. District Court for the Northern District of Illinois. This process streamlines the legal proceedings by assigning one judge to oversee all pretrial matters, which helps promote efficiency and consistency in how similar cases are handled.

Unlike a class action, an MDL treats each case as an individual claim. Each case remains an individual legal claim, meaning you retain your own attorney and your potential compensation is based on the specific details of your case, including the nature of your diagnosis and the impact it has had on your life.

Our firm has extensive experience representing clients in national MDLs and is well-equipped to guide you through each step of the process, from initial filing to resolution.

legal compensation

Filing a lawsuit against major cosmetic companies requires a law firm with the experience, resources, and legal skill to handle complex product liability cases. Since 1981, Ferrer Poirot Feller has represented clients nationwide who have been harmed by corporate negligence. Our team combines legal knowledge with scientific insight to build strong, effective cases.

We begin with a confidential consultation to understand your product use, diagnosis, and how your life has been impacted. From there, we conduct a detailed investigation, reviewing scientific research and requesting internal documents from the manufacturers through the discovery process.

We also gather your complete medical records to establish a clear timeline of your diagnosis and treatment. To support your claim, we work with respected experts in oncology, toxicology, and epidemiology who can connect your illness to the chemicals in hair relaxers.

With our No Fee Guarantee, you pay nothing upfront. We cover all legal costs and only collect a fee if we recover compensation for you. This allows you to focus on your health while we focus on your case.

FAQ for Chemical Hair Straightener Lawsuits

What is the main allegation in a hair relaxer lawsuit?

The core allegation is that manufacturers of chemical hair straighteners knew or should have known that their products contained dangerous chemicals associated with an increased risk of uterine cancer, ovarian cancer, and other health issues, but they failed to warn consumers of these risks.

Which brands of hair straighteners have been named in lawsuits?

Many popular brands are involved, including those made by L’Oréal (such as Dark & Lovely and SoftSheen-Carson), Revlon, Strength of Nature (such as Motions), and Namaste Laboratories (such as ORS Olive Oil).

What types of cancer are associated with chemical hair straighteners?

The strongest scientific correlation is to hormone-sensitive cancers. The most common cancers cited in lawsuits are uterine cancer and ovarian cancer. Other related health conditions include uterine fibroids and endometriosis.

Do I need to have proof of which products I used?

While having receipts or salon records can be helpful, it is not always necessary. Many women used these products for decades and cannot be expected to have kept records. Your testimony about your use history is valuable evidence, and your attorney can help investigate and build a strong case based on the facts you provide.

How much does it cost to hire a lawyer for my case?

At Ferrer Poirot Feller, we handle these cases on a contingency fee basis, meaning there are no upfront costs to you. We advance all expenses related to litigation, including the investigation, expert consultations, and court filings. You only owe attorney’s fees if we successfully recover compensation on your behalf.

File a Hair Relaxer Cancer Lawsuit to Hold Manufacturers Accountable

personal injury lawyer

For generations, cosmetic companies have profited from products now associated with serious health risks, often targeting their marketing toward women of color. Taking legal action helps hold corporations accountable for failing to protect consumers and to demand justice for the harm they have caused. By speaking out, you can help push for corporate responsibility and safer product standards.

At Ferrer Poirot Feller, we have been standing up to powerful companies on behalf of injured consumers since 1981. Our team has the experience, resources, and dedication needed to pursue justice against even the largest manufacturers.

To take the first step, call us today at (888) 485-8844 or complete our online form for a free, no-obligation case review.