Most likely Kérastase code locations
For Kérastase, start with the bottle base. If the outer box is missing, move to the tube crimp and then the box bottom.
Check the label around each marking to distinguish the production lot from product references; position and character count alone do not identify a lot.
- Check the bottle base under bright side light.
- Check the tube crimp under bright side light.
- Check the box bottom under bright side light.
Numbers to ignore
Do not enter the retail EAN/UPC product number, shade number, SKU, ingredient registration number, or volume marking as the batch. Some scannable codes contain additional fields; use only an explicitly identified lot field, not the entire scan.
If several Kérastase codes appear, identify the production lot from its label and the instructions for that product. Length alone cannot identify it. Keep every mark with its original location and never trim a longer identifier to make it fit.
When the print is hard to read
Embossed or low-contrast batch codes are easier to read with side lighting. Take a photo, zoom in, and preserve leading zeroes, separators, and letter case.
If the box and container disagree, check whether one string is a product reference. Preserve both markings separately while confirming their purpose.
Kérastase product and package context
Check bottle and jar bases, tube crimps, rear labels, and cartons for the compact lot. Range names, hair-type labels, volume, and barcodes are not production identifiers.
Where is a Kerastase lot code? Inspect the container base, rear label, tube seal, or carton for a short mark separate from the barcode.