Most likely La Roche-Posay code locations
For La Roche-Posay, start with the box flap. If the outer box is missing, move to the tube crimp and then the bottle shoulder.
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 box flap under bright side light.
- Check the tube crimp under bright side light.
- Check the bottle shoulder 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 La Roche-Posay 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.
La Roche-Posay product and package context
Inspect the tube crimp, bottle or jar base, rear label, and carton for the lot. SPF ratings, skin-concern labels, volume, and retail barcodes are separate information.
Where is a La Roche-Posay lot number found? Check the tube seal, container base, rear label, and carton for a compact mark away from the barcode.