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What Is Eso Friendly? An Evidence-Based Guide to Chemical Safety

'Is it eso friendly?' A quick way to ask: does this mess with my hormones, accumulate in my body, or contain things the research says to avoid?

Read article →12 Apr 2026

Erlenmeyer flask with amber liquid beside receipt and glass jar on pale surface in warm directional light

Guides22 min

What Are Endocrine Disruptors? The Evidence-Based Guide

Endocrine disruptors mimic your hormones at parts-per-trillion concentrations. WHO lists 800 suspects. Here's what the research shows and what you can do.

Read article →13 Apr 2026

Close-up of a wet toothpaste tube showing the ingredient list in sharp focus, water droplets catching hard side light

Guides29 min

Chemicals in Toothpaste and Your Toothbrush: What to Know

SLS strips your gums. Mouthwash raises your blood pressure. Titanium dioxide crosses your oral mucosa in 30 minutes. Here's what the research says.

Read article →13 Apr 2026

Single water drop hanging from the spout of a chrome kitchen tap, caught against a dark kitchen background in hard rim light

Guides24 min

Is Tap Water Safe? The Evidence-Based Guide to What's Actually In It

Is tap water safe? It depends what you're asking. Here's what the research says about chlorine, fluoride, lead, PFAS, and which filters actually remove it.

Read article →13 Apr 2026

Warm bedside lamp glowing in a dark bedroom, soft pool of light on an unmade bed, rest of the room in shadow

Guides24 min

Blue Light and Sleep: What the Research Actually Shows About Screens, Melatonin, and the Rest of the Bedroom

The biology is settled. The popular fix doesn't work. What does looks sillier. Here's what the evidence says — and why the bedroom matters more than the phone.

Read article →14 Apr 2026

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Guides

Chemicals and Fertility: Environmental Exposure and Health

Chemicals and fertility: what the research actually shows about BPA, phthalates, PFAS, pesticides, and what couples trying to conceive can reasonably do.

14 Apr 202623 min

Empty steel food can opened from the top, glossy white epoxy lining visible inside, lid leaning beside it on a dark surface

Chemicals11 min

What Is BPA? Where It's Found and What the Research Shows

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.

Read article →14 Apr 2026

Row of five identical clear BPA-free water bottles on a white studio background with BPS stamped on the labels

Chemicals10 min

Is BPA-Free Safe? The Evidence on BPS, BPF, and Replacements

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.

Read article →14 Apr 2026

Grease-stained brown paper takeaway bag on weathered wood, oil spreading through the paper fibres — a hidden PFAS exposure

Chemicals13 min

What Are PFAS? The 'Forever Chemicals' in Your Everyday Products

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.

Read article →14 Apr 2026

Faded spray can with rust-red patina on a dusty shelf beside a worn fabric cushion, dust caught in warm side light

Chemicals17 min

PFOS: The Forever Chemical That Outlasted Its Own Phase-Out

PFOS — the chemical behind Scotchgard — was phased out in 2002. Still detectable in 96% of Americans. Here's what the evidence says.

Read article →17 Apr 2026

Scratched black non-stick pan surface with a single gouge revealing bare metal underneath, caught in hard directional light

Chemicals15 min

GenX: The PFOA Replacement That Reproduces the Same Harm

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.

Read article →18 Apr 2026

White cosmetics bottle on a wet counter, ingredient list in tiny print facing the camera, condensation in warm light

Chemicals

Phthalates: Where They Hide and How to Avoid Them

Phthalates hide behind the word 'fragrance' on your labels. They don't mimic estrogen — they suppress fetal testosterone. Here's what the evidence says.

18 Apr 202615 min

Fingertips pressing cling film over a ceramic bowl of warm food, steam rising through creased plastic in golden light

Chemicals12 min

DEHP: The Phthalate in Food Packaging and Everyday Products

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.

Read article →18 Apr 2026

Pastel pump bottles of lotion and body wash on a white tray by a rain-streaked window, hand reaching in warm golden light

Chemicals13 min

Parabens: What the Evidence Actually Says

Are parabens safe? Detected in 99.1% of Americans but 10,000x weaker than estradiol. The evidence is more complicated than the headlines.

Read article →18 Apr 2026

Dense white foam climbing a yellow kitchen sponge under running water, soap suds catching hard side light against a dark sink

Chemicals13 min

SLS (Sodium Lauryl Sulfate): Should You Avoid It?

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.

Read article →18 Apr 2026

Wall-mounted soap dispenser with clear amber antibacterial liquid, chrome pump, white tile wall in harsh fluorescent light

Chemicals13 min

Triclosan: The Antibacterial That Didn't Work Better Than Soap

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.

Read article →18 Apr 2026

Gloved hands smoothing chemical treatment through wet dark hair in a dimly lit salon, fluorescent light glowing behind

Chemicals13 min

Formaldehyde in Consumer Products: Where It Hides and What the Evidence Shows

Formaldehyde is a confirmed carcinogen hiding behind names like DMDM hydantoin in your shampoo. Where it is and what the evidence says.

Read article →18 Apr 2026

Child reclined in a blue dental chair, gloved hand positioning a green fluoride tray near open mouth in bright clinical light

Chemicals

Is Fluoride Safe? What the Evidence Supports and Where It's Contested

Is fluoride safe? Topical fluoride in toothpaste has strong evidence. Swallowed fluoride in water has a neurodevelopmental question mark.

19 Apr 202612 min

Clear glass mug with nylon pyramid tea bag steeping in amber tea on a sunlit wooden table, toast on a plate behind

Chemicals14 min

Microplastics: Where They Are and What We Know

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.

Read article →19 Apr 2026

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Chemicals15 min

Lead Exposure: No Safe Level, and It's Still Everywhere

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.

Read article →19 Apr 2026

Fresh whole fish arranged on crushed ice at a fishmonger counter, silvery scales catching bright overhead light

Chemicals15 min

Mercury Exposure: Fish, Fillings, and the Three Forms That Matter

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.

Read article →19 Apr 2026

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Chemicals12 min

Arsenic in Food: What's in Your Rice and What You Can Do About It

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.

Read article →19 Apr 2026

Dry oat flakes in a ceramic bowl on a wooden breakfast table, morning light through a kitchen window behind

Chemicals11 min

Glyphosate: What the Evidence Says About the World's Most-Used Herbicide

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.

Read article →19 Apr 2026

Tall glass of cold water and ice cubes on a wooden kitchen board, condensation on the outside, two cubes melting beside

ChemicalsNew

Atrazine: The Herbicide in Your Water Supply

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.

29 Apr 202614 min

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