What “non-toxic” means in law, which is close to nothing

In the United States the phrase sits under the Federal Trade Commission’s Guides for the Use of Environmental Marketing Claims, the Green Guides, at 16 CFR Part 260. Section 260.4 tells marketers not to make unqualified general environmental benefit claims: they likely convey specific and far-reaching benefits, may convey no negative impact at all, and it is highly unlikely anyone can substantiate every reasonable reading 1.

Section 260.10 covers the phrase itself. It is deceptive to misrepresent, directly or by implication, that a product is non-toxic, and the claim should be qualified to the extent necessary to avoid deception. The section then sets the bar: the claim likely conveys that the product is non-toxic for humans and for the environment generally, so a marketer needs competent and reliable scientific evidence covering both, or clear qualifying language. The worked example is a cleaning product, and it fails 2.

Two things follow. The Guides interpret section 5 of the FTC Act rather than setting a standard with a number in it, so nothing in them tells a formulator what a product must contain or leave out. And that burden is heavy enough that two words on a front label are unlikely to carry it. The wording dates from 2012 and is still the current Part 260 in the 2024 edition of the Code of Federal Regulations 1 2.

The EPA does not use it. Its Safer Choice programme certifies household cleaning products against a published standard and describes what it certifies as safer for human health and the environment, having reviewed every ingredient 3. Safer is a comparative word with criteria behind it. The agency does not offer the absolute one.

The FDA does not define it either, because a washing-up liquid is not in its remit. The Federal Hazardous Substances Act, which governs cautionary labelling for household chemical products, expressly stands aside from foods, drugs and cosmetics, the categories the FDA regulates 4. On a bottle of cleaner the phrase therefore has no custodian: not certified, not defined, actionable only as advertising, after the fact, if somebody complains.

The Consumer Product Safety Commission does define the opposite word. Under the Federal Hazardous Substances Act, toxic applies to any substance, other than a radioactive one, which has the capacity to produce personal injury or illness to man through ingestion, inhalation, or absorption through any body surface 4.

That is broad enough to catch almost anything, so the regulation supplies numbers. On acute toxicity a substance is toxic where a single oral dose of between 50 milligrams and 5 grams per kilogram of body weight kills half or more of a group of laboratory rats within fourteen days; below 50 milligrams per kilogram it is highly toxic 4.

The distance between that and the label is the problem. A product outside the band is not toxic in the sense the statute uses, which is a statement about acute lethality in an animal test at a stated dose. A shopper reading the same word on a spray bottle is asking about their child, their skin and the next ten years. Both parties think the word has been defined.

The Unfair Commercial Practices Directive already prohibits a practice that deceives or is likely to deceive the average consumer about a product’s main characteristics and causes a transactional decision they would not otherwise have taken 5. That is wide, and it needs a case brought.

Directive (EU) 2024/825 makes the shape of the claim the offence. It defines a generic environmental claim as one, written or spoken, not carried on a sustainability label, where the specification of the claim is not given in clear and prominent terms on the same medium. It then adds to the list of practices banned in all circumstances: making a generic environmental claim for which the trader cannot demonstrate recognised excellent environmental performance relevant to the claim. Member states apply the measures from 27/09/2026 6.

The recitals give examples such as environmentally friendly, eco, green and climate friendly rather than the phrase this piece is about, so the honest reading is that an unqualified claim of non-toxicity is caught by the definition rather than named by the legislator. Either way, an environmental virtue with no statement of what it means on the same medium becomes a banned practice five weeks after the date on this article.

The United Kingdom got to a similar place through guidance. The Competition and Markets Authority’s Green Claims Code sets six principles, among them that claims be clear and unambiguous, that they not omit important information, and that they be substantiated 7. Two words on a front label struggle against the first and the last at once.

There is a stock reply to all of this, that the dose makes the poison, and it is true and mostly used to close a conversation rather than open one. Made properly it is the most useful idea here. A hazard is a property of a substance; a risk is what a given exposure does, at a given dose, by a given route, to a given population. The definition above is itself a dose statement 4.

So a claim of non-toxicity carrying no route, no dose and no population is neither strong nor weak. It is not a claim, because no observation could contradict it. The same objection disposes of the counter-argument: everything is toxic at some dose is equally unfalsifiable, and it says nothing about chronic low-level exposure, mixtures, the minority who develop a sensitisation, or what the water carries away. Name which of those you hold evidence on.

The softer-sounding phrase is the weaker one. Under the EU detergents regulation a detergent is any substance or preparation containing soaps or other surfactants intended for washing and cleaning processes 9. A detergent containing no chemicals is a contradiction inside the regulation that governs it, which makes the phrase a category error rather than an exaggeration. It also teaches a reader that chemical means harmful, which makes every ingredient list they open afterwards harder to read.

The Green Guides have a rule for the family it belongs to. A free-of claim is deceptive where the product contains substances posing the same or similar risks as the absent one, and a truthful free-of claim can still be deceptive where the substance has never been associated with the product category 8.

Retire the phrase rather than qualify it, and replace it with statements a stranger can check.

• The full ingredient list on the product page, every entry named, with a function against each one. California requires that disclosure for cleaning products sold there, on the label and on the website, with CAS numbers and a functional purpose for every intentionally added ingredient 10.
• A named absence that could plausibly have been a presence: no polyvinyl alcohol film, no added fragrance, no optical brighteners. Each is falsifiable against the list above.
• A certification with a scheme name and a licence number rather than a logo.
• A quantity wherever a risk is addressed: a concentration, a pH, a dilution, a dose per wash. Numbers can be wrong, which is their advantage.

None of those is as reassuring as the two-word version, and every one can be checked by somebody who does not trust you.

Vove pages use the loose kind. The bottle brush page carries a free-from strip ruling out parabens, phthalates, PFAS and PFOS on a brush made of bamboo, sisal, stainless steel and cotton, which is the free-of problem in the Green Guides almost word for word: substances never associated with the product category 8 11. The same page tells a reader there are no harsh chemicals you have to Google 11.

This site counts that against a product rather than excusing it. A page whose claims contradict or overreach its own published list reads badly on ingredient transparency, and the bottle brush is one of the pages that reads that way 11. The phrase should go, and it should go from our pages first, because those are the ones we can edit.