Most likely Kiehl's code locations
For Kiehl's, start with the box bottom. If the outer box is missing, move to the bottle base and then the jar 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 box bottom under bright side light.
- Check the bottle base under bright side light.
- Check the jar 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 Kiehl's 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.
Kiehl's product and package context
Inspect jar and bottle bases, rear labels, tube crimps, and cartons for the compact production mark. Ingredient callouts, product sizes, SPF values, and barcodes are not lots.
A wide jar is exposed to repeated contact, while a pump or tube limits it. Sunscreen follows any explicit expiration, and serums need attention to unexpected color or odor changes.