How does one date a tube of Barnangens vademecum toothpaste?

To date a tube of Barnangens Vademecum toothpaste, check the packaging for a printed expiration date or a "best before" date, typically found on the crimped end or near the barcode. If no date is visible, consider the packaging design and any specific product codes, as older versions may have different labeling. Generally, toothpaste can be used safely for a few years past its expiration date if stored properly, but it's best to check for any changes in texture or smell before use.