Serum PFAS Calculator
Don’t know? Use average (~7 ng/L)Estimated Serum PFAS Level
This estimate uses cumulative exposure and biological half-life modeling.
Download PDFBook PFAS Detox
About PFAS
What are PFAS? Per- and polyfluoroalkyl substances (PFAS) are synthetic chemicals used since the 1940s in many industrial and consumer products due to their resistance to heat, oil, stains, and water.
Common Uses: Non-stick cookware (Teflon), water-repellent clothing, stain-resistant fabrics and carpets, some cosmetics, firefighting foams, and food packaging.
Health Concerns: PFAS are known as "forever chemicals" because they do not break down easily and can accumulate in the body. Long-term exposure may affect immune function, increase cholesterol, interfere with hormones, and elevate cancer risk.
Exposure Pathways: Drinking contaminated water, eating contaminated food, using PFAS-containing products, and even inhalation of indoor dust.
Reducing Exposure: Use water filters certified for PFAS, avoid non-stick pans, choose PFAS-free personal care and cleaning products, and avoid fast food packaging and microwave popcorn bags.
Alternatives: Look for labels that say "PFAS-free," choose stainless steel or cast iron cookware, natural fiber clothing, and eco-certified products.