Kérastase Batch Code Checker

L'Oréal Professionnel

Kérastase Batch Code Format

The Kérastase format is L’Oréal-style code: 5-6 digit numeric, 2-letter + day-of-year, or longer alphanumeric code where the 3rd character is the year and 4th character is the month. Codes are read from the digits and letters that Kérastase prints on the container, and any code that does not match this structure is rejected.

Format: L’Oréal-style code: 5-6 digit numeric, 2-letter + day-of-year, or longer alphanumeric code where the 3rd character is the year and 4th character is the month

Examples: 54U400, AU1234, 11234

Shelf Life: Usually about 36 months from manufacturing date.

Enter the Kérastase production code exactly as printed — letters and digits only.

Decode

Turn a Kérastase batch code into a manufacturing date.

Verify

Spot codes that do not match the Kérastase format.

Plan ahead

Use the Kérastase shelf life to know how long a product lasts.

How Kérastase Batch Codes Work

A Kérastase batch code is the factory's internal reference for one production run. Read correctly it tells you when that run was filled, which is usually the closest thing to a manufacturing date that Kérastase packaging will ever give you.

Codes are often clearer under angled light than they are head-on. Ink that looks grey on a bottle base can resolve into a legible character once the light moves across it.

If the packaging also carries a printed expiry date, trust the packaging. The batch code tells you when the product was made; the printed date tells you when it should be used up.

How to Locate Your Kérastase Code

Kérastase marks its production runs on the underside or the back panel of most packaging. Look in these places:

Work down this list and you will find it:

If several codes appear on the packaging, the production code is normally the shortest string on the label. Enter that one into the field above.

Most Looked-Up Kérastase Ranges

Common Kérastase items whose codes people want decoded include:

Gift sets are the exception worth watching: the outer box and each item inside can carry different codes, and the oldest one in the set sets the limit for how long to keep it.

Kérastase Batch Code Tips and Traps

Treat the decoded date as an estimate rather than a guarantee. Kérastase occasionally reformats its coding scheme, and older stock may predate the current system.

Photograph the batch code with the packaging in frame. If you need to raise a query with Kérastase customer service later, that single image answers most of their questions.

Kérastase Batch Code FAQ

How do I read a Kérastase batch code?
A Kérastase batch code is the short string printed on the product or its box. Enter it in the field above and the decoder returns the estimated manufacturing date, the expiry date based on the official shelf life, and whether the product is still within date.
What format does a Kérastase batch code use?
The decoder handles the documented Kérastase format: L’Oréal-style code: 5-6 digit numeric, 2-letter + day-of-year, or longer alphanumeric code where the 3rd character is the year and 4th character is the month. Codes that do not match are rejected rather than guessed.
Where can I find the Kérastase batch code?
On most Kérastase products the code is printed on the base of the bottle or jar, under the barcode on the carton, or on the back panel. Check the bottle base, jar bottom, pump label, outer box, or printed lot area near the barcode.
Does a batch code prove a Kérastase product is genuine?
No. A valid Kérastase batch code is a good sign but not proof of authenticity — counterfeiters copy printed codes. Combine the decode result with packaging quality, matching codes on box and bottle, and an authorised retailer.
How accurate is the Kérastase batch code result?
The result is an estimate derived from the Kérastase format, not a printed expiry date. It is reliable for judging freshness, but if the packaging carries a date, trust the packaging.

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