Endocrine disruptors

Any chemical that interferes with the hormone system, rather than one specific substance. Dose does not work the way it does for other toxins here, because a very small amount can matter more than a larger one. Timing of exposure matters as much as quantity.

Definition and health context from NIEHS.

We checked 11,795 products and found endocrine disruptors reported or likely in 5 of them.
PFAS Authority, October 2026. Free to cite with a link. See the full dataset.
What a flag here means. Reported and likely mean we found real evidence, a published ingredient, a test result or a recall. Possible means the material or the category makes it credible and nobody has ruled it out. 15 products were checked for it and came back with nothing known. A flag is not a measurement, and we say which is which on every product page.

Where endocrine disruptors turns up

Categories we grade, worst first, as a share of what we scored in each.

Where we found real evidence

Reported or likely, lowest scoring first. Not plausibility.

  • Polystyrene contains oligomers and residual monomers with estrogenic activity documented in animal studies. Risk increases in contact with acidic, fatty, or hot foods.

  • In vitro and animal studies have raised questions about hormonal effects of some organic filters, particularly oxybenzone. Human risk remains uncertain and is outside FDA approval thresholds for topical use; regulatory agencies have not restricted these ingred

  • Some chemical UV filters (oxybenzone, octinoxate) are weak endocrine disruptors at high systemic exposure; the FDA and dermatological consensus is that topical sunscreen use poses negligible risk compared to UV damage, but consumers seeking hormone-free option

  • If this product contains oxybenzone or octinoxate (common in Hawaiian Tropic chemical sunscreens), these absorbers have been linked in laboratory studies to hormone disruption and bioaccumulation in marine ecosystems. FDA maintains they are safe at approved us

  • Oxybenzone is detected in blood, urine, and breast milk after topical sunscreen application in published FDA and independent studies. It exhibits weak estrogenic and androgenic activity in lab assays, though clinical significance at sunscreen application level

What to buy instead

Highest scoring products with no flag for it, in the categories where it is worst.

Answers about endocrine disruptors, with every source linked

The other chemicals we screen for

Every product here is checked against all of these, so a product that clears endocrine disruptors may still be flagged for one of them.

Common questions

What is endocrine disruptors?

Any chemical that interferes with the hormone system, rather than one specific substance. Dose does not work the way it does for other toxins here, because a very small amount can matter more than a larger one. Timing of exposure matters as much as quantity.

Which products contain endocrine disruptors?

Of the 11,795 products we have graded, 18 are flagged for it and 5 on reported or likely evidence rather than plausibility. Sunscreen is the worst category at 5% of what we scored there.

Is endocrine disruptors in sunscreen?

More than in anything else we grade. 11 of the 218 sunscreen we scored carry a flag for it, which is 5%. The full breakdown per product is on each product page.

What can I buy instead?

In the categories where it turns up most, the highest scoring products with no flag for it are Klean Kanteen Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid at 100, Piggy Paint 4-Piece Nail Polish Set at 100, Piggy Paint Showstopper Nail Polish Set at 100. Every one of those was graded on the same rubric as the products above.

How do you know?

We do not lab test. Every grade here is built from published ingredient lists, materials, certifications, brand disclosures, recalls and third party lab results where those already exist. Where a product has been independently tested we use that result and say so, and where a brand publishes nothing we score the silence rather than guessing.

0% of everything we grade carries a flag for endocrine disruptors. See every hazard we track or browse the full products list.