Flame Retardants in Your Home Linked to Thyroid Cancer
NonToxCo Research
Science & Safety Team · 4/8/2026
The flame retardants in your couch, mattress, and electronics are linked to thyroid cancer. A new study out of China just added more evidence.
Flame Retardants and Thyroid Problems
A 2026 case-control study in Ecotoxicol Environ Saf investigated the relationship between organophosphate flame retardant (OPFR) exposure and papillary thyroid cancer, the most common type of thyroid cancer. The study also looked at how these chemicals affect thyroid hormone levels.
The researchers compared people with thyroid cancer to healthy controls and found correlations between OPFR exposure and the disease. They also found that these flame retardants disrupted thyroid hormone levels, which fits the pattern: mess with thyroid hormones, increase thyroid cancer risk.
Where Flame Retardants Hide
Organophosphate flame retardants replaced older brominated flame retardants that were banned for being toxic. But the replacements aren't looking much better. OPFRs are in furniture foam, carpet padding, electronics, car interiors, and building insulation. They off-gas into indoor air and settle into household dust.
You breathe them in. Your kids crawl through them. They accumulate in your body over time.
What You Can Do
Dust and vacuum with a HEPA filter regularly. Open windows for ventilation. When buying furniture, look for items that don't contain added flame retardants (many states now allow this). Check out non-toxic home essentials for safer options.
Also see non-toxic kitchen essentials for safer alternatives.