Kilian batch code: production date & authenticity check

Where to find your Kilian batch code

On real Kilian packaging (made by Estée Lauder Inc.) — green is the code, red is not (the barcode, article number or open-jar symbol):

✓ The batch code is C79

✗ Not the code: 1G5Y-66, 027131816652 (barcode), BE-2260

On a Kilian bottle the batch code is etched or printed on the glass underneath, or on a small sticker on the base; on the box it is on the bottom flap or the back — near the barcode but separate from it — a short code of 4 to 10 letters and numbers. On a genuine set the code on the box and the code on the bottle are the same. Decants and testers usually carry only the bottle code.

• Bottle / jar — stamped on the base.
• Tube — near the crimp or seal at the closed end.
• Boxed fragrance — a flap or side of the outer box (and often on the bottle base too).
• Compact / palette — the underside, or inside the pan.

About Kilian batch codes

Kilian codes encode the production date.

Most unopened cosmetics and fragrances keep for about 30–36 months from manufacture. Once opened, follow the PAO (open-jar) symbol — it usually matters more than any printed expiration date.

We've read 195 Kilian batch codes so far, the newest was made October 2026, and the typical Kilian product people check here is about 23 months old.

Can the batch code tell me if my Kilian is authentic? Not on its own. A code that decodes to a sensible date, printed the same on the box and on the bottle, is a good sign, but counterfeiters copy real codes from genuine packs, so a valid code cannot prove a Kilian product is authentic. Buy from Kilian or an authorised retailer, and compare the packaging, print quality, sprayer and cap fit with one you know is genuine.

Does Kilian expire?

Yes — like all cosmetics and fragrances, Kilian products have a limited shelf life. Unopened they typically last 30–36 months from the manufacture date, and the batch code above tells you how old yours already is. After opening, the PAO (open-jar) symbol — e.g. "12M" — is a better guide than any printed expiration date.

How long Kilian products last

Unopened: general cosmetics guidance. Opened: general guidance by product type. A date or open-jar symbol on your pack always wins.