The most commercially powerful vocabulary in skincare is also the least defined. That is not accidental. A word with a fixed legal meaning is a word that can be tested against a product. A word without one carries the impression while remaining, in the narrow sense, unfalsifiable.
What is and is not defined
For cosmetics on the UK market there is no statutory definition of natural, of clean, or of what may be described as free from. There are two things that do apply, and they are strong.
- The general prohibition on misleading. Advertising must not mislead, including through ambiguity, implication or omission of material information. This applies to every one of these words.
- The cosmetic claims framework. Claims must be truthful, supported by evidence, fair, and must allow informed decision making. The common criteria are the basis on which regulators assess whether a cosmetic claim is acceptable.
Alongside that sit voluntary certification schemes, which do define natural and organic content for their members, usually as a percentage calculated by a stated method. Where a product carries a scheme's mark, the word means what that scheme says it means, and the scheme publishes its standard. That is genuinely checkable, and it is the main case where these words carry information.
100% natural
That the advertiser considers all ingredients to be of natural origin, under some definition it has chosen. Where the product carries a recognised certification, the term has a defined meaning within that scheme's published standard, usually with a calculation method for natural origin content.
Without certification, the calculation basis is the advertiser's own.
It does not mean unprocessed. Almost all natural origin ingredients are extracted, refined, purified or chemically modified before use, and the point at which processing removes the natural description varies between schemes.
It does not mean safer, gentler or less likely to cause a reaction. Several of the most common contact allergens in cosmetics are of plant origin. It does not mean better for the environment, which is a separate claim needing separate evidence. And water is a natural ingredient, which is why the calculation basis matters so much.
The claim would have to state the standard used and the calculation method, ideally by reference to a published certification scheme, and be supported by the ingredient list. A certified figure calculated to a published method is a real statement. A round number with no basis is a design choice.
Clean, the word doing the most work
Clean beauty is a positioning rather than a standard. It typically combines a free from list, a natural leaning ingredient philosophy and an aesthetic. Different retailers operate different clean criteria, and those criteria are published, which makes them at least examinable. They are not consistent with each other, and a product can be clean under one retailer's standard and not under another's.
The difficulty with clean is what it implies about everything else. If this product is clean, the shelf beside it is by implication dirty. That implication is doing the persuasive work, it is rarely stated, and it is not supported by evidence about the safety of permitted cosmetic ingredients used within their limits. Where an implication of that kind is made in advertising, it is capable of being challenged even though the word itself is undefined.
Building a category on an implied contrast
A brand entering a crowded market needs a reason to exist. Asserting that the incumbents are unsafe is the cheapest available reason: it requires no formulation advantage, no evidence and no investment in performance, only a list of things the product does not contain.
It also creates a permanent content engine. Fear of ingredients is more shareable than reassurance about them, it renews itself as new ingredients become suspect, and it converts readers into shoppers at the moment of maximum anxiety.
- Challenger brands. Get differentiation without needing a technical advantage
- Retailers. Gain a merchandising category and a filter that increases basket size
- Certification and ratings services. Sell assessment into a demand they benefit from sustaining
- Publishers and creators. Get durable, high performing content about what to avoid
- Incumbent brands. Eventually launch their own versions, which completes the cycle
A description of a marketing mechanism. No claim is made here about the safety of any ingredient, and none should be inferred.
The claim that cannot be true
Chemical free is the one claim in this family that is straightforwardly impossible. Water is a chemical. Every ingredient in every cosmetic is a chemical. The phrase is generally understood to mean free from synthetic ingredients, and where it appears in that sense it is imprecise rather than deceptive.
It is worth naming because it demonstrates the mechanism in its purest form. The phrase works not despite being meaningless but because it is: it transfers a feeling without asserting anything that can be tested.
Environmental claims, where the rules are sharper
Environmental claims are the exception to the general vagueness, because the Green Claims Code published by the Competition and Markets Authority sets out clear principles. Claims must be truthful and accurate, clear and unambiguous, must not omit or hide material information, must only make fair and meaningful comparisons, must consider the full life cycle of the product, and must be substantiated.
| Claim | The principle it most often runs into | What would make it defensible |
|---|---|---|
| Sustainably sourced | Claims must be substantiated and not omit material information | Naming the standard or scheme, the proportion covered, and how it is verified |
| Recyclable | Claims must consider the full life cycle and not mislead by omission | Stating which components, and whether collection is actually available to the buyer |
| Carbon neutral | Claims must be clear about what is included and how it is achieved | Stating the scope, the method and the extent of reliance on offsetting |
| Plastic free | Claims must be accurate and must not hide material information | Clarifying whether the pump, seal, liner and outer are included |
| Better for the planet | Comparisons must be fair, meaningful and stated | Naming the comparator and the basis of comparison |
Free from, and why it is the most regulated of the three
Free from claims attract more regulatory attention than natural or clean, because they carry an implication about the omitted substance rather than about the product. Where a free from claim denigrates a legally permitted, safety assessed ingredient, it is asserting something about safety that the advertiser would have to substantiate.
Some free from claims are useful and uncontroversial: a person with a diagnosed allergy needs to know whether a specific substance is present, and a fragrance free product is meaningfully different from a fragranced one for reactive skin. The distinction is between a claim that helps a person avoid something they react to, and a claim that suggests everybody should. There is more on the specific case of preservatives in preservation and why a formula needs it.
How to use these words without being used by them
- Treat certification as the only version with a fixed meaning. If a scheme's mark is on the pack, the standard is published and you can read it.
- Read free from as information about you, not about the product. It matters if you react to the named substance and is otherwise decoration.
- Ask what a green claim covers. Which component, what proportion, compared with what.
- Notice the implied contrast. When a claim only works if the alternative is bad, the claim about the alternative is the one that would need evidence.
- Report claims that mislead. The ASA takes complaints about advertising and publishes its rulings.