Can a barcode tell you if a product is genuine?

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Not by itself. A barcode identifies a product type, but it can be copied onto counterfeits. To check authenticity, verify who owns the barcode's GS1 prefix, buy from authorized sellers, and rely on product-specific security features — not the barcode alone.

A scannable, valid barcode only proves the number is well-formed — not that the item in your hand is real. Counterfeiters routinely copy genuine barcodes onto fake goods, so a matching code is not proof of authenticity.

What actually helps:

Check that the registered brand owner behind the barcode matches the product — look it up on our barcode lookup or in the official GS1 company registry.
Buy from the brand or an authorized retailer.
Look for product-specific security features (holograms, serial numbers, verification apps from the brand).
Check whether the product appears in any official safety recall.

FAQ

Can two different products have the same barcode?

Legitimately each product should have a unique barcode, but counterfeiters often copy real codes onto fakes, so a matching barcode is not proof that a product is genuine.

How do I find out who owns a barcode?

The registered brand owner is recorded in the GS1 company database. ProductGuru also shows the brand and manufacturer on record for many codes — enter the number on our barcode lookup.

ProductGuru is an independent information service and provides no legal or safety guarantees; for official product data consult GS1 and the manufacturer. Free to cite with attribution.