i agree. but also with some UGL,s I have seen "growth" in vials of god knows what (not crystalization,) iv seen white clouded and even BLACK stuff growing after a long time sitting past exp ( i ripped the lab with black stuff for sure), but i have also had some be fine. guess it depends the conditions it was made. for me now i personally rec using ugl gear by exp but hg i will push a couple years np IMO
just inspect it closely and if it looks fine and was kept in good condition its likely ok