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Study: Cancer-Linked Chemicals in All Headphones Tested

A study by European scientists found BPA in 98% of headphones tested, with toxic chemicals leaching through skin contact, raising long-term health concerns especially for adolescents.

  • ToxFree LIFE for All researchers tested 81 pairs of headphones and found hazardous, cancer-linked chemicals in all, as reported yesterday by AutoTech Express.
  • Because the chemicals come from headphone plastics, bisphenols, phthalates and PFAS migrate to skin during daily use, especially with in‑ear headphones due to heat and sweat accelerating dermal exposure.
  • The tests found BPA in 98% of headphones and BPS in over three‑quarters, with some devices like Sennheiser Accentum True Wireless measuring up to 315 mg/kg, above the ECHA limit of 10 mg/kg.
  • Scientists are calling on EU lawmakers to ban endocrine-disrupting chemicals and ToxFree's petition demands bans during the 2024–2029 mandate, while manufacturers including Bose and Panasonic were contacted for comment.
  • Long‑term, scientists warn that exposures to endocrine disruptors pose risks of feminization, early puberty, cancer and organ damage, urging public‑health regulators and manufacturers to enforce transparency and safer materials.
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Birmingham Mail broke the news in Birmingham, United Kingdom on Wednesday, February 18, 2026.
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