Nominal Content and the e-Mark on EU Cosmetic Labels

Every jar and bottle you sell in the EU needs a number on it that says how much product is actually inside. That number is the nominal content, and it trips up a surprising number of small brands who assume "just put the weight on there" covers it. It mostly does, but there are two details worth getting right before your first CPNP notification: the units you use and whether that little "e" belongs next to the number.

What nominal content actually means

Nominal content is the declared weight or volume of the product at the time of packaging, not the weight of the jar plus the product, and not a guess at what's "usually" in there once some gets used. For most cosmetics you'll declare it in grams or milliliters, following metric convention. Solid products (a bar of soap, a solid perfume, a pressed powder) get weight in grams. Liquids and creams thin enough to pour or pump get volume in milliliters, though creams are sometimes declared by weight if that's the more accurate measure for the formula.

The rule of thumb: declare whichever unit reflects how the product is actually measured out at fill time. If your filling line meters product by weight, put grams on the label. Don't convert to volume just because it looks more familiar to shoppers.

The e-mark, explained

You'll see a lowercase "e" next to weight declarations on European products constantly, and it is not decorative. It's a legal symbol tied to European average-fill legislation, and it signals that the manufacturer has verified the average content across a batch using the required metrological methods, and that any variation between individual units stays within permitted tolerances. Put simply, it tells a regulator that if they pulled twenty jars off your production run and weighed them, the average would land where you said it would, even if a couple ran slightly light or heavy.

Using the e-mark is a choice, not a default. If you use it, you're taking on the underlying quality-control obligations, meaning your batch records need to support the claim if anyone asks. If you don't use it, your product still needs to state nominal content accurately, but you're not invoking the average-fill legal framework.

Practically, most small and mid-size cosmetic brands skip the e-mark unless they're operating at a scale where formal batch-average verification is already part of their manufacturing process. There's no requirement to add it just to look official. Adding it without the verification behind it is the mistake to avoid.

The small-package exemption

Nominal content declaration has a floor. Very small packages, the kind used for samples, trial sizes, or single-use sachets, are typically exempt from mandatory content declaration. The logic is straightforward: on something so small the content is self-evident or the declaration would take up more space than the product itself, the requirement doesn't serve its purpose. The exact threshold and the definitions around it live in the EU's packaging and labeling rules, and it does shift depending on product type, so if you're building a sample-size line, check the current figure against the source rather than working from a number a competitor's label used.

A quick table for common formats

Product format	Typical declaration	Common pitfall
Bar soap	Weight in grams	Declaring wet weight instead of cured weight
Liquid cleanser	Volume in mL	Confusing bottle capacity with fill volume
Cream or balm	Weight in grams	Using volume units for a dense, non-pourable product
Sample sachet	Often exempt below threshold	Adding a content statement that isn't required, then getting it wrong
Multi-pack	Content per unit, sometimes total	Declaring only the total when per-unit is expected

Where this fits into your CPNP filing

Nominal content itself isn't a CPNP data field the way an INCI list or a Responsible Person address is, but it has to be consistent with the physical product description you're submitting, and it's one of the things inspectors check against your Product Information File and packaging artwork. If your PIF references a 50 mL bottle and your actual retail packaging says 45 mL, that's a discrepancy worth catching before launch, not after a market surveillance request lands in your inbox.

The practical checklist

• Confirm the unit (grams or milliliters) matches how the product is actually filled and measured.
• Decide whether you're using the e-mark, and if so, make sure your fill-verification records back it up.
• Check the current small-package exemption threshold with an official EU source before assuming your sample size qualifies.
• Cross-check the number on your label against the number in your Product Information File and any CPNP-linked packaging documentation.
• Update the declaration any time you change formulation density, fill weight, or packaging format, since a new pack size is effectively a new product from a documentation standpoint.

None of this is exotic, but it's exactly the kind of small, boring detail that turns into a customs hold or a retailer rejection when it's overlooked. Cosmetic Comply's Canada notification workflow already walks makers through this kind of packaging-to-filing consistency check, and similar EU tooling is on the way, so if you're juggling multiple markets, it's worth having one place that keeps your declared content, your ingredient list, and your actual label in sync.