A batch code is not proof that a product is genuine

A batch code is a clue about a production run. It is not a certificate of authenticity.

That distinction follows the job batch coding is meant to do: it makes a production lot traceable. For example, the FDA describes adequate lot coding as a way to identify products involved in a recall — not as an authenticity programme. Read the FDA guidance →

What a successful lookup means

A successful result means that the characters you entered fit a batch-code format that we can decode for the selected brand. It can give useful manufacture-date context. It does not inspect the product, verify the seller, or trace the item's journey from a manufacturer to you.

Why the distinction matters

A string can be copied, read from the wrong part of a package, or look plausible without telling the whole story. Treating a decoded date as a definitive authenticity verdict gives the result more authority than it has.

A better way to use the result

• Use it to check whether the manufacturing context is consistent with the listing.
• Compare the exact code on the item with the code on its box; do not invent a match if you cannot find one.
• Keep the seller, condition of the packaging, and the brand's own support channels in the decision.

Lotly is intentionally a batch-code checker, not an authenticity verifier. The most honest answer is sometimes simply: this code is decodable, and that is all it proves.

Learn why a lookup can fail →

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