Explain a product expiry or opening-period label

Demonstration checklist

1. Identify which symbol or date is present.
2. Separate unopened expiry from opening-period notation.
3. Avoid calculating a date from an unknown opening history.

Fictional worked example

In a fictional rehearsal, two similar variants have different information on their labels. The team turns the problem into a concrete check: identify which symbol or date is present. Next, they separate unopened expiry from opening-period notation. If the answer still depends on missing information, they avoid calculating a date from an unknown opening history.

Limits and next check

Further reading

• FDA: Cosmetics Labeling Guide (US reference)