Welcome @WntrMute2, You are indeed fortunate if you can squirrel away enough Dexcom sensors to let them go out of date!
I am looking for G6 sensors manufactured prior to December of 2019. I was not allergic to the adhesive on those, before Dexcom changed to a new adhesive to make them stick better. I am allergic to something in the new adhesive and even barrier films don’t entirely prevent the reaction. If anybody has older ones they want to get rid of before they expire, please send me a message. I would prefer that they not be expired, of course.
We have a thread going on the G6 allergy problem.