Back in late 2025, Green Prophet began asking uncomfortable questions about what’s really inside your yoga pants, from transparency failures (yes, those infamous see-through leggings) to the less visible and scarier issue: Your sweat is unlocking microplastics and chemical coatings sitting in the most absorbent parts of the human body.
Now, regulators in the United States are catching up. Texas Attorney General Ken Paxton has launched a formal investigation into Lululemon, issuing a Civil Investigative Demand to determine whether the athleisure giant misled consumers about the safety of its products, specifically the potential presence of PFAS, or “forever chemicals.”
These chemicals are widely used for water and stain resistance. They also persist in the environment and the human body, and have been linked in scientific studies to cancer, hormone disruption, and reproductive issues. Paxton framed the probe as a consumer protection issue:
“Americans should not have to worry whether the products they purchase are safe for themselves and their families,” he said.
And more sharply, and what’s interesting here is that he is targeting the brand’s positioning: “Companies that market themselves as leaders in health and wellness should not sell harmful, toxic materials under the guise of sustainability or safety.”
Why Lululemon? Dollar store items may use the same microplastics. But this isn’t a random enforcement action.
Attorney General Ken Paxton issued a Civil Investigative Demand (“CID”) to Lululemon USA Inc. (“Lululemon”) as part of an investigation into whether the company has misled consumers about the safety, quality, and health impacts of its products.
Lululemon is a leading activewear brand that generated over $11 billion in fiscal year 2025 alone. The company markets itself as a wellness-focused lifestyle brand emphasizing sustainability and performance. Brand ambassadors spotted wearing the pants include Oprah Winfrey, Kim Kardashian, Cameron Diaz, Jennifer Aniston, Reese Witherspoon, Kate Middleton, Selena Gomez, and Taylor Swift. Lessor known influencers peddling the brand include Lewis Hamilton, Sidney Crosby, Connor Bedard, Jordan Clarkson, Frances Tiafoe, and Leylah Fernandez.
However, emerging research and consumer concerns have raised questions about the potential presence of certain synthetic materials and chemical compounds in their apparel that may be associated with endocrine disruption, infertility, cancer, and other health issues.
“The health and safety of our guests is paramount, and our products meet or exceed global regulatory, safety, and quality standards,” Lululemon said in a statement. “We require all our vendors to regularly conduct testing for restricted substances, including PFAS, by credible third-party agencies to confirm ongoing compliance.”
According to the Attorney General’s Office, Lululemon occupies a unique space of premium pricing, wellness branding, and direct-to-skin products worn during heat, sweat, and friction. The investigation is expected to examine the company’s restricted substances list, product testing protocols, and global supply chain disclosures.
The legal question isn’t simply whether PFAS were used. It’s whether consumers were led to believe they were buying something cleaner than reality allowed. Sort of like Zentera’s so-called “ethical” and “kind” wool that PETA has exposed to be exploitive to animals.
The company’s response? Lululemon says the issue is already addressed.
In statements it has released on the issue that Green Prophet brought force in 2025, the company has said it phased out PFAS in its products in 2023, and that such chemicals were previously used only in limited applications, such as water-repellent finishes. It maintains that its products meet all applicable safety standards and undergo third-party testing.
The bigger issue: exposure where it matters most. If talcum powder exposure or asbestos exposure happened in the past, consumers have a right going forward to claim damages if a link can be made. The problem is that the source of immune disease such as lupus or cancers are hard to tracer.
How do I know if my leggings have PFAS?
PFAS treatments cause the fabric to strongly repel water. If you drop a water droplet onto a PFAS-treated fabric, it will bead up, roll around, and typically leaves no residue. In contrast, a droplet dropped onto an untreated fabric will soak in.
What regulators are only beginning to explore now is what Green Prophet flagged months ago. They know that synthetic fabrics shed microplastics during wear and washing. And that tight athletic clothing creates heat and friction zones, while hemical finishes may interact with sweat and prolonged skin contact.
This includes areas of the body where absorption risks are highest, such as in the crotch area, which is not abstract, but practical and daily.
Paxton didn’t go after every spandex manufacturer. He chose a category-defining brand called Lululemon which is one that sells not just apparel, but a narrative of health, control, and well-being.
If that narrative proves misleading, the implications extend far beyond one company and can shake up the health and wellness space that makes claims about products and services that are unfounded, or worse, bad for one’s health. My mother can remember a time when smoking was considered good for your health, but we know how that played out. Let’s hope the plastics lobbies aren’t so strong.
Now we ask Green Prophet readers: Can synthetic performance wear ever truly be marketed as “clean”? Green Prophet raised the question first. Now, the regulators are asking it on the record.
