Interesting that this thread is bumped today. I came across some of this in my fridge (back of crisper drawer) on Friday. It must have been pretty old as I havent used it for quite a long time. Anyway I finished off the vial & took what came out to be around 1.2-1.3mg. I wasnt sure if it was going to do anything because I am sure it is months old. Well I am happy to report it was def still good. I took it on friday night and its effects are definitey still going today. Been quite the fun weekend.