Your favorite athletic gear likely offers impressive performance, repelling water, resisting stains, and wicking away sweat. Many of these features are made possible by a class of chemicals known as per- and polyfluoroalkyl substances (PFAS). But growing consumer awareness and regulatory scrutiny are calling the use of these “forever chemicals” into question. Understanding what they are, the risks they pose, and the technology used for their detection is now more important than ever for manufacturers and consumers alike. This article explores the presence of forever chemicals in athletic clothing and the methods used to detect them, supporting product safety and compliance.

Highlights

• PFAS are a large group of synthetic chemicals used in textiles for their water- and stain-resistant properties.
• Known as “forever chemicals,” they persist in the environment and the human body, posing potential health and ecological risks.
• Advanced analytical techniques, primarily liquid chromatography with tandem mass spectrometry (LC-MS/MS), are the gold standard for detecting and quantifying PFAS in fabrics.
• Accurate detection is crucial for manufacturers to comply with evolving global regulations and meet consumer demand for safer products.

Table of Contents

• What Are PFAS and Why Are They in Activewear?
• The Hidden Risks of “Forever Chemicals”
• How Are PFAS Detected in Textiles? An Overview of Analytical Methods
• The Role of Advanced Instrumentation in Ensuring Compliance
• Final Thoughts
• FAQ
• References

What Are PFAS and Why Are They in Activewear?

PFAS are a group of thousands of synthetic chemicals. They are characterized by chains of carbon-fluorine bonds, which are among the strongest in organic chemistry. This unique structure gives them highly desirable properties, including thermal stability and the ability to repel both oil and water. For this reason, they have been widely used for decades in everything from nonstick cookware to firefighting foam and, of course, textiles.

In activewear, PFAS are the secret ingredient behind many high-performance features. When you wear a jacket that keeps you dry in a downpour or running shorts that resist stains, you are likely experiencing the work of a PFAS-based durable water repellent (DWR) finish. These treatments create an invisible, protective layer on the fabric’s surface, preventing moisture and dirt from penetrating. This functionality has made PFAS a go-to solution for brands aiming to deliver durability and performance in their athletic clothing lines.

The Hidden Risks of “Forever Chemicals”

The same chemical stability that makes PFAS so effective also makes them incredibly persistent. They do not break down easily, earning them the nickname “forever chemicals.” Over time, they can accumulate in the environment, including in soil, water, and wildlife. The widespread use of these substances has led to global contamination, a problem that is now receiving significant attention from health organizations and regulatory bodies.

Research continues to uncover the potential health impacts of these compounds. According to the U.S. Environmental Protection Agency (EPA), studies suggest that exposure to certain levels of PFAS may lead to a variety of adverse health outcomes, including reproductive effects, developmental delays in children, increased risk of some cancers, and interference with the body’s immune system. The presence of forever chemicals in athletic clothing raises concerns not only about environmental contamination during manufacturing and disposal but also about potential direct exposure for the wearer.

How Are PFAS Detected in Textiles? An Overview of Analytical Methods

Answering the question “How are PFAS detected in textiles?” requires analytical science. Detecting these chemicals is a complex task. They are often present at very low concentrations within the mixture of dyes, finishes, and fibers that make up a garment. The process generally involves two key stages: sample preparation and instrumental analysis.

Sample Preparation and Extraction

Before any analysis can occur, the PFAS compounds must be carefully extracted from the textile sample. This is a critical step that involves using solvents to draw the target chemicals out of the fabric matrix. The goal is to isolate the PFAS while leaving behind other substances that could interfere with the measurement. The choice of solvent and extraction technique, such as sonication or pressurized liquid extraction, depends on the specific type of textile and the PFAS being targeted. Robotic autosampler systems can support automated sample preparation and handling workflows.

Key Analytical Techniques

Once the extract is prepared, it is analyzed using laboratory instruments. Here are the primary methods used:

• Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS): This is widely considered the gold standard for PFAS analysis. Liquid chromatography first separates the various PFAS compounds in the sample from each other. Then, the tandem mass spectrometer identifies and measures each compound with incredible accuracy by determining its molecular weight. LC-MS/MS instruments can detect a wide range of PFAS at very low levels, making them essential for regulatory compliance.
• Gas Chromatography-Mass Spectrometry (GC-MS): While less common for the broader range of PFAS, GC-MS is effective for analyzing older, more volatile types of PFAS compounds that can be vaporized without breaking down.
• Total Organic Fluorine (TOF) Analysis: This method serves as a rapid screening tool. Instead of identifying individual PFAS compounds, it measures the total amount of organic fluorine in a sample. Since all PFAS contain fluorine, a high TOF reading suggests the likely presence of PFAS, flagging the sample for more detailed analysis with LC-MS/MS.

Each of these methods provides valuable information, but LC-MS/MS offers the most comprehensive and definitive data for identifying specific PFAS chemicals in consumer products.

The Role of Advanced Instrumentation in Ensuring Compliance

For brands, manufacturers, and testing laboratories, having access to the right technology is essential. As regulations become stricter and consumer demand for transparency grows, the ability to accurately test for PFAS is a critical part of quality assurance and risk management. A 2022 report by Toxic-Free Future found that 72% of products labeled as stain- or water-resistant contained PFAS, highlighting the scale of the issue and the need for rigorous verification.

This is where the right analytical instruments make all the difference. Modern LC-MS/MS systems deliver the high sensitivity, selectivity, and robustness needed to navigate the complexities of textile analysis. They allow scientists to confidently identify and quantify targeted PFAS compounds, even at trace levels, ensuring that products meet safety standards set by bodies like the European Union’s REACH regulation or individual state laws in the U.S.

Understanding how PFAS are detected in textiles is the first step. The next is implementing a robust testing protocol supported by reliable technology. As an industry leader in providing scientific instrumentation, DKSH helps laboratories and manufacturers across various markets access the technology required for this demanding application. By partnering with us, you gain access to a portfolio designed to deliver the precision and confidence needed to bring safe, compliant products to market. Explore our insights on research and analysis to learn more.

Final Thoughts

The conversation around PFAS in activewear is a perfect example of the intersection between consumer safety, environmental responsibility, and technological innovation. As the industry moves away from these “forever chemicals,” the role of advanced analytical science becomes even more critical. Reliable detection methods not only enable companies to comply with regulations but also verify “PFAS-free” product claims, building trust with customers. Investing in the right testing technology is an investment in a safer, more sustainable future for the textile industry and beyond.

FAQ

What are PFAS or “forever chemicals”?
PFAS (per- and polyfluoroalkyl substances) are a large class of synthetic chemicals used in many consumer products for their oil- and water-resistant properties. They are called “forever chemicals” because their strong carbon-fluorine bonds prevent them from breaking down easily in the environment or in the human body.

Why are PFAS used in athletic clothing?
In athletic clothing, PFAS are used to create durable water repellent (DWR) and stain-resistant finishes. These treatments help keep the wearer dry and comfortable and make garments easier to care for by preventing moisture and dirt from soaking into the fabric.

Are forever chemicals in athletic clothing dangerous?
Scientific studies have linked exposure to certain PFAS to a range of potential health problems, including immune system disruption, hormonal interference, and an increased risk of some cancers. While research is ongoing, concerns exist about both environmental contamination and direct human exposure from consumer goods.

What is the most common method for detecting PFAS in textiles?
The most common and accurate method is liquid chromatography with tandem mass spectrometry (LC-MS/MS). This technique can separate, identify, and quantify specific PFAS compounds at very low concentrations, making it the preferred method for regulatory testing.

How can businesses ensure their products are PFAS-free?
Businesses can ensure their products are PFAS-free by working with their supply chain to source alternative materials and finishes. Most importantly, they must implement a rigorous testing protocol using advanced analytical methods like LC-MS/MS to verify that their final products meet safety and regulatory standards. 

References

• U.S. Environmental Protection Agency (EPA)
• Toxic-Free Future