Cosmetic Label Warnings & Mandatory Statements (UK & EU)

A compliant cosmetic label is more than a pretty design and an ingredient list. The law requires a specific set of mandatory statements and warnings from the Responsible Person's address to precautions of use and missing any of them makes the product non-compliant. This guide walks through what must appear on a UK or EU cosmetic label and why.

This complements our guides to ingredient lists, durability and PAO labelling and net quantity and batch codes, which cover the other label elements in detail.

The mandatory label information

UK and EU law set out a defined list of information that every cosmetic label must carry. In summary, this includes the name and address of the Responsible Person, the country of origin where required for imports, the nominal content (weight or volume), the date of minimum durability or PAO, any precautions and warnings, the batch number, the product function unless it is obvious, and the list of ingredients. Each of these has its own rules, and together they make the product traceable, safe to use and honestly described.

The information must be indelible, easily legible and visible. Some elements can appear on an outer pack, an inner pack, or an attached leaflet or tag where space is tight, but the core information cannot simply be omitted because a package is small. Designing the label around these requirements from the start avoids painful redesigns later.

Responsible Person name and address

The label must show the name and address of the Responsible Person the entity legally accountable for the product in that market. This is not optional decoration: it is how a consumer or authority knows who stands behind the product. The address must be one where the Product Information File can be made available, and it must be in the correct market a UK address for Great Britain, an EU address for the EU. Our guide to the Responsible Person explains the role in full.

For brands selling in both markets, this often means different RP details on the UK and EU versions of the label, which is one practical reason the same product can need two label variants after Brexit.

Product function

Unless it is obvious from the product's presentation, the label must state the product's function what the product is for. “Shampoo”, “moisturising body lotion” or “lip balm” makes the function clear; an unlabelled jar of cream does not. The function helps the consumer understand how to use the product and supports correct classification. Where the name or imagery already makes the purpose plain, a separate function statement may not be needed, but when in doubt it is safer to include one.

Function also connects to claims: how you describe what a product does must be truthful and supported, and must not stray into medicinal territory that would reclassify the product. Keeping the function description accurate and cosmetic is part of compliant labelling.

Precautions and warnings

Labels must carry any precautions of use and warnings relevant to the product. Some come from specific ingredients: substances listed in the regulation's annexes often carry mandatory warning wording or conditions of use that must appear verbatim, such as cautions tied to certain preservatives, hair-dye ingredients or other restricted substances. Others are general good-practice warnings, like avoiding contact with the eyes or keeping a product away from children, where foreseeable use warrants them.

The safety assessment is what identifies the warnings a particular product needs. This is a key reason labelling should follow, not precede, the CPSR: the assessor determines which precautions and conditions apply, and those must then be reflected accurately on the pack. Printing labels before the assessment risks missing a mandatory warning.

Language and legibility

Mandatory information must appear in the language required by the market where the product is sold English for Great Britain, and the national language(s) specified by each EU member state. The ingredient list uses INCI, which is common across markets, but surrounding text such as function and warnings frequently needs translating. Everything must be legible and durable enough to remain readable in normal use, including in a damp bathroom environment.

For brands selling across several countries, this can mean multilingual packs or market-specific labels. Planning for it early prevents shipments being rejected or relabelled at the border, and keeps your presentation professional rather than cluttered with last-minute stickers.

Small packs and where information can go

A common worry for makers of lip balms, sample sizes and small jars is simply fitting everything on. The law anticipates this. While the core information must always reach the consumer, certain elements most often the full ingredient list and some warnings may be carried on an enclosed or attached leaflet, label, tag, tape or card where it is genuinely impractical to print them on the pack itself. A small symbol (a hand pointing to an open book) can be used on the pack to refer the consumer to that accompanying information.

This flexibility is narrower than people hope, though. The most safety critical details warnings, the Responsible Person address, durability and batch code are expected on the container or its immediate packaging, not hidden on a peel off the customer discards. The practical answer is good label design: a well planned wrap-around label, a base print for the batch code, and sensible typography routinely fit everything a small cosmetic needs. We cover the per-element detail in our guides to net quantity and batch codes and durability and PAO.

If you genuinely cannot make it work, that is a signal to rethink the packaging rather than to drop a mandatory statement. Authorities and marketplaces treat “there wasn't room” as a design failing, not a valid exemption, so it is worth solving at the artwork stage.

Mandatory label checklist

• Responsible Person name and market-correct address.

• Country of origin where required for imports.

• Nominal content (weight/volume).

• Best-before date or PAO symbol.

• Precautions and warnings, including mandatory ingredient wording.

• Batch number, product function (unless obvious) and ingredient list.

• Correct language and legible, indelible print.

Frequently asked questions

What must appear on a cosmetic label?

The Responsible Person's name and address, country of origin where required, nominal content, best-before or PAO, precautions and warnings, batch number, product function unless obvious, and the ingredient list all legible and indelible.

Where do cosmetic warnings come from?

Some are mandatory wording tied to specific restricted ingredients in the regulation's annexes; others are general precautions identified by the product's safety assessment based on foreseeable use.

Do I have to state the product's function?

Yes, unless it is obvious from the product's name or presentation. A clear function statement such as 'moisturising body lotion' satisfies the requirement.

Does the label have to be in the local language?

Mandatory information must be in the language required by the market of sale English for Great Britain and the national language(s) for each EU country. INCI ingredient names are common across markets.

Why should labelling come after the CPSR?

Because the safety assessment determines which warnings and conditions of use the product needs. Printing labels first risks omitting a mandatory warning the assessment identifies.

My pack is tiny can I leave the ingredients off?

No. Where space is genuinely impractical, the ingredient list and some warnings may go on an attached leaflet, tag or card referred to by a symbol on the pack, but they cannot be omitted entirely. Safety critical details are still expected on the container.

Do general warnings like 'avoid contact with eyes' have to appear?

Where foreseeable use makes them appropriate, yes. The safety assessment identifies which general precautions and any mandatory ingredient-specific warnings the product requires.

References: Regulation (EC) No 1223/2009, Article 19 and Annexes III–VI (EUR-Lex); UK Cosmetics Regulation as retained; OPSS labelling guidance. General information only, not legal advice.