THE LABEL FILES · Laundry
What's Actually in Your Laundry Detergent
It has no ingredient label by law, and the most concerning thing in it is one Google can't find on any list.
Cosmetics at least have to list their ingredients. Laundry detergent doesn't, there's no INCI requirement, so what you get is a marketing-curated partial list and the word 'Fragrance.' The most concerning thing in your detergent isn't even an ingredient: it's a probable carcinogen created during manufacturing that, by definition, never appears on any label.
The contaminant with no label line
1,4-dioxane is a probable carcinogen formed as a byproduct when detergent surfactants are made. It's not added, so it's never listed, yet independent testing found it in Tide, Gain, and Arm & Hammer above New York's legal limit before the brands reformulated. New York's 1 ppm cap is the only US rule that touches it. Everywhere else, you're trusting a number you can't see on a label that doesn't have to exist.
Banned in Europe, in your wash
Sodium borate, borax, is in Tide and Gain. The EU classifies it a reproductive toxicant and restricts it in consumer products. Here's the honest part most scare-sites skip: that classification comes from high doses, and what rinses out of your laundry is low. The real story is the regulatory gap, not poison in your towels, but it's a gap worth knowing about.
The chemicals that don't clean anything
Optical brighteners are the category's quiet tell. They don't remove a single stain, they're fluorescent dyes that cling to fabric and bend light so your clothes *look* whiter. They stay on the cloth against your skin all day and persist in waterways. You're not buying cleaner clothes; you're buying an optical illusion you wear.
The teardowns
Tide Original Liquid Laundry Detergent →
Sodium borate is in here, a substance ECHA classified as toxic to fertility and the unborn child in 2015. Tide Original cannot be sold in its current formula in the EU.
Gain Original Liquid Laundry Detergent →
Three separate concerns on one label: sodium borate banned in EU consumer products, benzisothiazolinone restricted as a skin sensitizer abroad, and 1,4-dioxane hiding in the surfactant system.
Arm & Hammer Clean Burst Liquid Laundry Detergent →
Before the 2024 New York reformulation, Clean Burst tested the highest of the three detergents for 1,4-dioxane, while Arm & Hammer marketed its ‘Standard of Purity.’
The ingredients, graded
Editorial analysis of publicly listed labels and regulatory/peer-reviewed sources. Not medical advice. Verdicts are evidence-graded, we flag what the data flags and clear what it clears.