No, cosmetic products do not require an expiration date. They are fine to use indefinitely.
Visitor Comments
Comment #1 (Posted by Sonkay
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I live in the US, I had like 3.5 months left on my psropsat, and they let me board, I had to sign a waiver or something not holding them responsible. Depends on the airlines, I was flying on EVA Air. I had a great trip without any hassle. If you have time, I would get it renewed to minimize the possibility of problems.