24 articles in this category.
What is BPA? A synthetic chemical used in polycarbonate plastics, can linings, and thermal receipts. Detected in 92.6% of Americans. Here's what the research says.
Is BPA free safe? Usually not. The substitutes — BPS, BPF, BPAF — bind the same estrogen receptors as BPA. Here's what the evidence actually shows.
What are PFAS? A family of over 14,000 synthetic chemicals that don't break down in the environment or the body — found in non-stick pans, raincoats, and water.
PFOS — the chemical behind Scotchgard — was phased out in 2002. Still detectable in 96% of Americans. Here's what the evidence says.
GenX replaced PFOA in non-stick manufacturing. It clears the body 400x faster — but produces the same developmental toxicity in mice. Then in the Netherlands.
Phthalates hide behind the word 'fragrance' on your labels. They don't mimic estrogen — they suppress fetal testosterone. Here's what the evidence says.
DEHP is the most produced phthalate on earth. It's in your cling film, your vinyl floor — and the IV tubing that delivers medicine to premature babies.
Are parabens safe? Detected in 99.1% of Americans but 10,000x weaker than estradiol. The evidence is more complicated than the headlines.
Is SLS bad? Five cancer agencies say no. Zero studies show hormone disruption. But if you get mouth ulcers, your toothpaste may be the reason.
Triclosan was in 74.6% of Americans' urine. The FDA banned it from soap — not because it was dangerous, but because it didn't work. Health concerns came separately.
Formaldehyde is a confirmed carcinogen hiding behind names like DMDM hydantoin in your shampoo. Where it is and what the evidence says.
Is fluoride safe? Topical fluoride in toothpaste has strong evidence. Swallowed fluoride in water has a neurodevelopmental question mark.
Microplastics are in your brain, blood, and placenta. Your brain is now around 0.5% plastic by weight. Here's what the evidence says — and where it's being argued.
There is no safe blood lead level. Over 170 million Americans were exposed as children. Lead is still in your pipes, your soil, and your spice rack.
Swordfish carries 110x the mercury of shrimp. Two birth cohorts disagree on what fetal methylmercury exposure does — and the diet on the plate may be why.
Rice absorbs 10x more arsenic than other grains. Over half the rice in UK shops exceeds EU safety limits for children. Here's what the evidence says.
Glyphosate is in 81% of Americans' urine. IARC says probably carcinogenic. The EPA's safety finding was thrown out by a federal court. Here's where it stands.
Aluminium in deodorant: the breast cancer headline has weakened in 2017–2024 evidence. Here's what the science says now and the honest case for switching.
Chlorine in tap water saves lives by killing pathogens. The byproducts it leaves behind are a different question. Here's what the evidence says — and what to do.
Atrazine in tap water peaks 3-7× the EPA limit during runoff season — and the limit is an annual average. Here's what the evidence says.
VOCs in home air run 2-5x higher than outdoor air, and 1,000x higher during paint stripping. Where they come from, what the evidence says, and what to do.
DMDM hydantoin is a cosmetic preservative that slowly releases formaldehyde inside the bottle. Here's what it is, where it lives, and which regulators have moved.
Chemical combination effects: the gap regulatory testing misses. Eight weak chemicals, each below its no-effect dose, still combine into a substantial response.
Why 'safe dose' chemicals aren't always safe: the regulatory dose-response model uses three data points to draw a curve hormones don't follow.
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