Find out when your La Mer product was made.
Usually 3, 4, 5, 6, 7 or 11 characters and for example A59, K992239, and W99
Printed in small type or stamped into the material — usually with no label next to it. It is not the barcode.




Look on the base of the bottle or jar, the crimped tail of a tube, or the bottom flap of the box. It is a short string stamped or printed in small type — not the barcode. For La Mer it is usually 3, 4, 5, 6, 7 or 11 characters.
Yes — lot number, lot code and batch code all mean the same string on your La Mer packaging. American packaging and shoppers tend to say lot number; British and European ones say batch code. Enter it either way.
The code gives the manufacture date. Shelf life is counted from there — typically 36 months unopened, and 6–12 months once opened, depending on the product.
No. The barcode is the 12–14 digit number under the striped label and identifies the product, not the batch — it contains no date at all. This is the single most common mistake.
Track your La Mer products in the app