A barcode is the least visible part of a beauty product and one of the few that can stop a launch outright. A retailer that cannot scan a product cannot receive it into its system, and a marketplace listing without a valid identifier will not go live.
The reason this causes difficulty is that the barcode is usually treated as a printing task when it is actually an ownership question. The identifier on the pack belongs to the brand, not to the manufacturer, and a brand that discovers this at the point of its first retail order may find that the manufacturer has already printed an identifier that cannot legally be used.
This guide explains what the numbers on the pack actually are, how they are obtained and assigned, what retailers and marketplaces require, how print quality is verified, and where brands most often go wrong.
Why the barcode is the brand's responsibility
The number encoded in a retail barcode identifies a trade item and the company that owns its brand. Whoever owns the brand owns the identifier, which means the brand has to obtain the number itself and supply the artwork to the manufacturer.
This is not merely a convention. The organisation that issues the numbers licenses them to a specific company, and the licence is not transferable to another company's products. A manufacturer that prints its own identifier on a brand's pack is representing the product as its own, which creates a problem for the retailer, for the brand and potentially for the consumer's ability to trace the product.
The practical consequence is that the brand's first action in this area is not to design artwork but to obtain its identifiers, and this should happen before the packaging artwork is finalised rather than after.
What the numbers actually are
The system is administered globally by GS1, which publishes the standards and licenses the company prefixes through national member organisations. Several identifier types are used in the supply chain, and each has a different role.
| Identifier | What it identifies | Where it appears | Typical use in beauty |
|---|---|---|---|
| GTIN-13 in an EAN-13 symbol | A retail trade item | Printed on the consumer pack | The standard barcode on a retail SKU in most markets outside North America |
| GTIN-12 in a UPC-A symbol | A retail trade item | Printed on the consumer pack | The North American equivalent of EAN-13 |
| GTIN-8 | A very small retail item | Small packs where a longer symbol will not fit | Occasional use on very small cosmetic units |
| GTIN-14 and ITF-14 | An outer case or shipper | Printed on the carton | Used by distributors and warehouses |
| SSCC | A logistic unit such as a pallet | Applied to the pallet label | Used in retailer supply chains and distribution centres |
| Batch and expiry data | A specific production lot | On the pack, often as human-readable text or a second symbol | Required for traceability and recalls |
Two points follow. The consumer pack and the outer case carry different identifiers, so a brand selling through a distributor needs both. And the GTIN identifies the trade item, which means a change of size, shade, flavour or count creates a new trade item and therefore a new GTIN.
How a brand obtains and assigns identifiers
The route is to join the GS1 member organisation in a country, which licenses a company prefix, and then to construct GTINs by combining that prefix with a reference for each product and a check digit. The reference is allocated by the brand, which means the brand controls which number maps to which product and is responsible for keeping that record accurate.
Several practical rules apply. A GTIN must be unique to a trade item and must not be reused for a different product, even if the original is discontinued, because historical records and retail systems still refer to it. A change that alters what the consumer receives, including a change of count or a change of declared net content, normally requires a new GTIN. And identifiers should be allocated in a register that records which product each number belongs to, since reclaiming or reallocating numbers later is not possible.
Where a brand sells only through its own website, a GTIN is not strictly necessary for that channel. Where it sells through marketplaces and retailers, it generally is, and several marketplaces require the identifier to be verifiable against a registry before a listing is approved.
Retailer and marketplace requirements
Requirements vary, but a pattern is consistent. Retailers expect a scannable symbol that meets the defined print quality standard, a GTIN that is registered to the brand, and a data record that matches the product. Marketplaces expect a valid GTIN and, increasingly, additional product data such as ingredient information and net content.
Two requirements are frequently underestimated. The first is the data record itself: many retailers will not simply accept a barcode, they will ask the brand to supply product data in a defined format, and a mismatch between the pack and the data record is a common cause of a delayed listing. The second is the artwork specification, because the retailer specifies the symbol size, the quiet zone around it and its position on the pack, and artwork that does not comply is rejected at the proofing stage.
Brands selling into several markets should expect that the same product may need different symbols for different regions, since the North American and European symbologies differ in width. In practice the GTIN is the same number, and only the symbol used to render it changes.
Print quality and verification
A barcode that looks correct to the eye can fail at the scanner, and the difference is measured rather than judged.
Print quality for linear symbols is graded under an internationally recognised method that evaluates contrast, edge definition, bar width accuracy, defects and the reflectance of the background, producing a grade from an unacceptable level through to a high grade. For matrix symbols a parallel method applies. Retailers commonly require a minimum grade, and a symbol that falls below it will be rejected even though it scans on some equipment.
Three practical causes of failure appear repeatedly. Printing a barcode onto a curved or textured surface distorts the bar widths. Reducing a symbol to fit the artwork shrinks the bar widths below the printable tolerance. And using a low-contrast combination, such as a dark symbol on a coloured background or a symbol printed over a gradient, reduces the contrast below the required level. In each case the solution is to plan the symbol as part of the pack design rather than as something applied afterwards.
Verification should be performed on the printed pack, not on the digital artwork, because the failure modes are printing failures. For a first production run it is worth commissioning a verification report rather than relying on a visual check.
Batch codes, traceability and what they are for
The GTIN identifies the product; it does not identify the batch. A batch or lot code identifies the specific production run, and it is what makes a targeted recall possible.
The batch code is normally applied by the manufacturer during filling, either by inkjet printing or by a pre-printed element on the pack, and it should be legible, durable and positioned so that it is not removed when the pack is opened. Where a product has a minimum durability date, that date is applied in the same way and is required on the pack in most markets.
For the brand, the batch code is the link between a complaint and the production records. Without it, an investigation cannot determine which batches are affected, and a recall that cannot be narrowed becomes a withdrawal of everything. From a regulatory perspective the traceability obligation exists independently of the barcode system, but the two are usually managed together because the pack is the only place both appear.
Where brands most often go wrong
The recurring mistakes are few and each has a straightforward prevention.
Using the manufacturer's identifier rather than the brand's own is the first and the most consequential, because it misrepresents ownership and may breach the licence under which the number was issued. Leaving the barcode to the end of the artwork process is the second, and it usually results in a symbol that is too small or badly placed. Reusing a GTIN after a product change is the third, and it corrupts retail data in ways that are difficult to unwind. Allocating numbers without a register is the fourth, which leads to duplicate or conflicting assignments as the range grows.
The preventive measure in every case is to treat the barcode as a brand-owned data item that is established before artwork and recorded in a register. That is a small amount of administrative work at the start and a large amount of avoided difficulty later.
What should a brief contain?
State the pack format and dimensions, the markets the product will be sold in, the sales channels including any marketplaces or retailers, whether the brand already holds a company prefix, and whether the brand needs a case-level identifier in addition to the consumer one. State also whether the brand requires the manufacturer to apply the batch and date codes, and in what format.
Two items prevent artwork rework. Supply the GTIN or GTINs before the artwork is finalised, because the symbol dimensions depend on the number of digits and the retailer's size requirement. And confirm whether the batch code position is defined by the brand or by the retailer, since some retail customers specify it.
Frequently asked questions about barcodes
Can the manufacturer supply the barcode?
The manufacturer can print and verify the symbol, but the identifier has to be the brand's. The licence for a company prefix covers that company's products, so a manufacturer's number cannot be used on a brand's product.
Do we need a new GTIN for a new shade?
Yes. A shade, size, count or flavour variation is a different trade item, and each requires its own identifier.
Do we need a barcode for a product sold only on our own website?
Not for that channel, but most marketplaces and all retailers require one, and obtaining the identifier before launch avoids a later artwork change.
Can we reuse a GTIN from a discontinued product?
No. The number remains in retail and internal records referring to the original item, and reuse creates data conflicts that are difficult to resolve.
Do you apply the batch code and the barcode during filling?
Yes. We print and verify the symbol against the agreed artwork specification and apply batch and date codes in the position the brand specifies, with the print quality confirmed on the printed pack.
Next step: obtain the identifier before the artwork
If you are preparing a retail launch, tell us the pack, the markets and the channels, and we will confirm the artwork specification, the symbol size and the batch coding arrangement, and quote the packaging and production. Write to capsulebiotech@163.com, message the right team on WhatsApp: Capsule Series (capsules only) +86 158-7655-5319, Cosmetics Series (serum, hair care, body care, fragrance) +86 158-7655-5319, or use the inquiry form and we will reply within one working day.
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