In recent months, concerns have emerged about the potential presence of PFAS chemicals in Coterie diapers, a popular eco-friendly diaper brand. This issue has sparked debate and legal action, leaving many parents wondering about the safety of these products for their babies. Let’s explore the key facts and developments surrounding Coterie diapers and PFAS.

Understanding PFAS
PFAS, or per- and polyfluoroalkyl substances, are a group of man-made chemicals that have been used in various industries for decades. Often referred to as “forever chemicals,” PFAS are known for their persistence in the environment and the human body. These substances have been linked to several health concerns, including cancer, liver damage, and immune system problems.
The Coterie Diaper Controversy
Coterie Baby Inc., a company known for its eco-friendly diapers and strong social media presence, has found itself at the center of a legal battle over claims about PFAS in its products.
The Lawsuit
In May 2024, a class action lawsuit was filed against Coterie Baby Inc. in the US District Court for the Southern District of New York. The lawsuit alleges that the company deceptively marketed some of its products as “PFAS-free” despite containing these toxic substances.
Coterie’s Marketing Claims
Coterie has built its brand on a commitment to safe and non-toxic baby products. Their marketing heavily features claims such as:
- “Free from harmful chemicals”
- “PFAS-Free Diapers”
- Products undergo rigorous testing to be “free of” or “below detectable levels” for nearly 200 chemicals, including PFAS
The Plaintiff’s Argument
The lawsuit contends that Coterie’s marketing and labeling across various platforms, including packaging, website, and social media, mislead consumers into believing their diapers are entirely free of harmful chemicals, including PFAS. Specific claims like “if any chemical may be considered toxic…you won’t find it in our diapers” are being challenged.
Independent Testing Results
The lawsuit hinges on independent testing commissioned by the plaintiff, which allegedly found PFAS chemicals in Coterie diapers. This directly contradicts Coterie’s claims of being PFAS-free and raises concerns about potential health risks for babies wearing the diapers.
The Broader Context: PFAS in Baby Products
The Coterie controversy is not an isolated incident. Concerns about PFAS have been growing across various baby product categories:
Diapers Industry-Wide
A 2023 report by Mamavation, an environmental wellness blog, found indications of PFAS “forever chemicals” in both disposable and cloth diapers after analyzing 40 diaper brands. Their findings showed:
- 23% of total diaper products tested had indications of PFAS
- 17% of disposable diapers tested had indications of PFAS
- 30% of reusable cloth diapers & accessories had indications of PFAS
Other Baby Products
Similar concerns have been raised about other baby care items:
- Baby wipes: A 2023 report found several brands of baby wipes containing concerning ingredients, including PFAS
- Infant formula: Recent class action lawsuits have alleged the presence of PFAS in some infant formula products
Coterie’s Response and Legal Defense
Coterie Baby Inc. has responded to these allegations and is defending itself against the lawsuit:
Denial of Claims
The company maintains that it does not add any PFAS or organic fluorine components to its diapers. They assert that all ingredients have been vetted for their composition and safety profiles.
Legal Arguments
Coterie is seeking to have the false advertising lawsuit dismissed. Their key arguments include:
- Lack of standing: The company argues that testing a single diaper is not sufficient to establish standing for a lawsuit.
- Ubiquity of PFAS: Coterie points out that PFAS are now so widespread in the environment that it may be “essentially impossible” to manufacture a completely PFAS-free diaper.
Commitment to Further Testing
In response to concerns, Coterie has stated they will be conducting further testing of their diapers to understand the true composition of any organic fluorine compounds present, using certified 3rd parties.
The Challenges of PFAS-Free Manufacturing
The Coterie case highlights a significant challenge in the production of baby care products:
Environmental Contamination
PFAS chemicals are now so ubiquitous in the environment that achieving a truly PFAS-free product may be extremely difficult, if not impossible. This widespread contamination complicates manufacturing processes and product claims.
Testing Limitations
Current testing methods may have limitations in detecting all forms of PFAS, especially at very low levels. This can lead to discrepancies between manufacturer testing and independent analyses.
Consumer Implications
For parents and caregivers, this controversy raises several important considerations:
Understanding Product Claims
It’s crucial to critically evaluate marketing claims about product safety and chemical content. Terms like “free from” or “below detectable levels” may not always guarantee complete absence of a substance.
Balancing Risks and Benefits
Parents must weigh the potential risks of PFAS exposure against other factors like diaper performance, skin sensitivity, and environmental impact when choosing products for their babies.
Seeking Transparency
Consumers should look for brands that provide detailed information about their testing methods, results, and ingredient sourcing.
Conclusion
The controversy surrounding Coterie diapers and PFAS highlights the complex challenges of producing truly “chemical-free” baby products in a world where these substances are pervasive. As the legal case unfolds and further testing is conducted, parents are left to navigate a landscape of uncertain risks and competing claims.
While the presence of PFAS in diapers is concerning, it’s important to remember that exposure levels, duration, and individual susceptibility all play roles in potential health impacts. Parents should stay informed, ask questions of manufacturers, and make decisions based on the best available information and their individual circumstances.
As research continues and regulations evolve, we can hope for clearer standards and safer options for our most vulnerable consumers. In the meantime, transparency, rigorous testing, and ongoing dialogue between manufacturers, regulators, and consumers will be crucial in addressing these important safety concerns.

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