"Hazardous Chemicals" Above Standard Limits in Fast Fashion Clothing
- Pitsinee Pannasuriyaporn
- Dec 20, 2025
- 3 min read
In recent months, independent testing reports have revealed that some fast fashion garments sold across multiple markets contain hazardous chemicals exceeding international safety limits, particularly those set under EU REACH regulations.
This issue is no longer just a passing headline. It has become a growing concern for consumers, brands, and garment manufacturers alike.
In this article, we take a closer look at the chemicals most frequently mentioned in these reports and the potential risks they pose.

1. PFAS — The “Forever Chemicals” Under Increasing Scrutiny
PFAS (Per- and Polyfluoroalkyl Substances) are a group of chemicals commonly used in textile finishing processes to provide properties such as:
Water resistance
Stain resistance
Improved durability
The concern is that PFAS are extremely persistent — they do not break down easily in nature and can accumulate in both the environment and the human body. For this reason, they are often referred to as “Forever Chemicals.”
Why are PFAS a concern?
They remain in the environment for many years
Long-term exposure may lead to accumulation in the body
Many countries are tightening regulations and moving toward restrictions on PFAS, especially in consumer goods and textiles
2. Phthalates — Chemicals Linked to Prints and Synthetic Components
Phthalates are chemicals used to make plastics softer and more flexible. In apparel, they may be present due to:
Printed graphics
Coatings or finishes
Plastic trims or decorative elements
Potential impacts
Some phthalates are classified as endocrine disruptors, meaning they may interfere with hormonal systems
They have been linked to potential reproductive health concerns with long-term exposure
As a result, their use is strictly regulated, particularly in children’s clothing and items worn directly against the skin
3. Chemicals from Dyeing, Finishing, and Production Processes
While PFAS and phthalates receive the most attention, these reports also highlight a broader issue:
Chemical risks in garments do not come from fabric alone, but from the entire production process, including:
Dyes and dyeing auxiliaries
Finishing chemicals
Residual substances from manufacturing
Without proper chemical management, residues may remain in finished garments — even unintentionally.
How can consumers be exposed to these chemicals?
Direct skin contact from prolonged wear
Children are considered a higher-risk group due to sensitive skin and closer contact with garments
Washing and wastewater — certain chemicals can be released during laundering, contributing to environmental pollution

How can consumers be exposed to these chemicals?
Direct skin contact from prolonged wear
Children are considered a higher-risk group due to sensitive skin and closer contact with garments
Washing and wastewater — certain chemicals can be released during laundering, contributing to environmental pollution
From a manufacturer’s perspective: how to reduce risk and meet export standards

For garment factories and brands producing for international markets, proactive chemical control is essential. Best practices include:
Implementing RSL / MRSL (Restricted Substances List) compliance
Sourcing materials and chemicals with proper safety documentation
Conducting targeted lab testing for higher-risk products such as:
Water-repellent garments
Printed apparel
Children’s wear
Regularly monitoring regulatory updates, especially for EU and UK markets

Recent testing of fast fashion garments highlights how chemical safety has become just as important as design, price, and speed to market.
For consumers, it is a matter of health and safety. For brands and manufacturers, it is about credibility, compliance, and long-term sustainability.
By managing chemical risks from the very beginning of the production process, manufacturers can not only reduce compliance issues but also build trust with global customers — and create safer products for everyone.

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