Where can I find the Umi No Uruoisou batch or lot code?
Start with the box bottom and bottle base. If both exist, choose the cleaner and more complete print.

Check cosmetic production dates
Use this Umi No Uruoisou page to decode batch or lot codes and estimate production timing before opening or repurchasing.
When multiple years are possible, combine decoding output with purchase timing and packaging generation.
When Umi No Uruoisou print quality is weak, a brighter angle and uppercase retry usually improves recognition.
Start with the box bottom and bottle base. If both exist, choose the cleaner and more complete print.
For near-edge items, use them first and monitor odor, texture, and performance changes closely.
For near-edge products, prioritize immediate use and avoid adding more backups until inventory clears.