The Lab
Specimen No. 0102
AvoidSynthetichousehold chemical

PFAS / PFOA / PFOS (Forever Chemicals)

pfas · pfoa · pfos

Extremely persistent synthetic fluorinated chemicals used in non-stick coatings, stain-resistant treatments, food packaging, and firefighting foam. Detected in blood of 97%+ of Americans.

high confidence
Researched April 18, 2026

Concerns

  • Linked to thyroid disease, immune disruption, reduced vaccine effectiveness, and cancer (EPA classified PFOA and PFOS as carcinogens)
  • Detectable in blood of 97%+ of Americans (CDC NHANES)
  • Half-life in human body: 3.5–8 years
  • EPA Maximum Contaminant Levels for PFOA and PFOS set at 4 parts per trillion (2024)

Regulatory flags

  • PFAS: 'forever chemicals' — environmentally persistent, bioaccumulative
  • EPA set maximum contaminant levels for PFOA and PFOS (2024)
  • Multiple PFAS restricted or banned globally

Commonly found in

Non-stick cookware (PTFE)Stain-resistant clothing and carpetFood packagingMicrowave popcorn bagsDental flossCosmetics

Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.

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LabelCleared verdict badge: PFAS / PFOA / PFOS (Forever Chemicals) — Avoid
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