Most likely Isdin code locations
For Isdin, start with the box flap. If the outer box is missing, move to the tube crimp and then the bottle base.
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 base 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 Isdin 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.
Isdin product and package context
Check tube crimps, bottle bases, rear labels, and cartons. SPF and product references are not lots.
Fluid sunscreen often requires shaking, but persistent separation, leakage, or heat damage is not resolved by a recent batch date.