Dissociatives Arylcyclohexylamine Storage

[HearWhalesLaugh]

Apologies if this has been discussed here. I’ve got a couple small gram bags of 3-meo-pce and 3-me-pcpy id like to save for a year later. If I leave em
Sealed in a black Mylar in a dark closet sitting around 70F will they still be amazing in a year (or two?)