PAO (Period After Opening)

What is PAO?

The open-jar symbol with a figure such as 12M, showing how long the product stays safe once opened. Mandatory in the EU for products with a shelf life over 30 months, and derived from stability and challenge-test data rather than chosen for convenience.

At a glance

Category

Packaging

Also known as

Period After Opening · 개봉 후 사용기간

Korean term

개봉 후 사용기간

Last reviewed

July 23, 2026

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