Headphone Chemical Concerns: EU Study Finds Hormone-Disrupting Substances
A recent EU-funded study has revealed the presence of hormone-disrupting chemicals in a wide range of headphones from leading brands, prompting some European retailers to remove certain models from their shelves. The study, conducted by the Czech nonprofit Arnika and four other consumer advocacy groups, analyzed 81 different headphone types and identified traces of bisphenols, phthalates, and flame retardants – chemicals linked to potential health risks.
Study Findings and Chemical Concerns
Researchers disassembled the headphones to collect 180 plastic samples, which were then analyzed for harmful chemicals. The study found that all headphones contained at least traces of these substances. Bisphenols, particularly BPA, were found in 98 percent of the samples, while approximately 60 percent contained phthalates considered carcinogenic, mutagenic, or reprotoxic. These chemicals are known endocrine disruptors, potentially impacting reproductive health, neurobehavior, and overall development.
Retailer Response and Product Ratings
Online stores Bol.com, Coolblue, and Mediamarkt have reportedly removed some of the worst-scoring headphone models in response to the study, according to local news outlets. The study assigned headphones a “green,” “yellow,” or “red” rating based on risk levels for parts touching the skin, parts not touching the skin, and overall product evaluation. “Green” indicated the lowest risk, “yellow” signified legal compliance but exceeding stricter voluntary limits, and “red” denoted high concern.
Apple’s AirPods Pro 2 and JBL’s Tune 720BT received “green” ratings across all categories. However, results varied even within the same brand. JBL’s Wave Beam and JR310BT (headphones for children) received “red” scores, as did HP’s HyperX Cloud III and Razer’s Kraken V3 across all categories.
Manufacturer Responses
The study reached out to 11 major headphone manufacturers. Bose, Sennheiser, and Marshall were the only companies to respond, all asserting that their products comply with legal safety requirements. Some companies, like Bose and Sennheiser, questioned the study’s methodology and requested detailed data for verification, which was not provided by the researchers. Marshall welcomed the report, stating it drives greater transparency and accountability in the industry.
Cumulative Exposure and Long-Term Effects
Researchers emphasize that while chemical concentrations were low, the widespread presence of these substances raises concerns about cumulative exposure. Karolína Brabcová, a campaign manager at Arnika, stated, “Even in a little product like headphones, there’s a cocktail of chemicals which people might be exposed to. And now, multiply it by 100 because we use hundreds of products a day.” The potential for these chemicals to leach out is also increased by factors like heat and sweat during prolonged use, particularly with gaming headsets.
Call for Stronger Regulations
The study authors advocate for stricter regulations, including banning entire classes of harmful chemicals and requiring manufacturers to disclose the substances used in their products. They believe that progressive manufacturers can lead the way in adopting safer materials and practices. According to Brabcová, over 40 percent of the headphones tested received an overall “green” score, demonstrating that meeting higher safety standards is achievable.
Bol.com and Apple Reseller ID
Bol.com is a major e-commerce platform in the Netherlands and Belgium, hosting over 50,000 sales partners as of March 2026 [1, 4]. Some users have inquired about Bol.com’s Apple Reseller ID for registering devices in Apple Business Manager, but Bol.com customer support has reportedly been unable to provide this information [3]. It appears Bol.com itself is not an Apple Authorized Reseller, and products are sold by various third-party vendors on the platform [3].
Looking Ahead
This study highlights the need for increased awareness and regulation regarding potentially harmful chemicals in consumer products. While the immediate risk from headphone use may be low, the cumulative effect of exposure to these substances over a lifetime warrants further investigation and proactive measures to protect public health.
Sources:
- About bol – Over bol.com
- Homepage – Over bol.com
- who knows the Apple reseller ID of bol.co… – Apple Community