保质期与开盖后使用期限：怎么定、怎么验证、怎么写
保质期与开盖后使用期限（PAO）是两个不同概念。梳理稳定性数据如何支撑保质期、PAO 的判定依据、包材与使用方式的影响，以及标注与宣称的注意事项。
2026-10-27
化妆品知识
标签：PAO
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Shelf Life and Period After Opening: How to Set, Verify and Declare Them
Shelf life and period after opening are two different clocks. How stability data supports shelf life, how PAO is judged, and how packaging and use habits change both.
2026-10-27
Industry news