Shelf life or expiration date for various flavors

[executivul]

Hello,
I have bought quite a few flavours from PA (via LF UK) and TW (UK). None of them has a clearly stated expiration date.
What is the shelf life for them? I mean how much can I keep them in my house and use them before they go nasty? Do they ever expire?
Thanks.

 

[robert shohet]

most bottles will say a year exp date ive heard peopel on here say 2 yrs tho it all depends n how u store them dont let em get to hot no direct sunlight and keep em cool should be good for a while if those conditions are met

 

[Kurt]

I have kept my flavors from several companies in my office at widely varying ambient temperatures for as much as 20 months, and none have changed at all. No fading or reactions. The vast majority of flavors, I think, are very stable no matter the conditions, save perhaps in some cases with sun light or extreme heat. Regular house light or even non air conditioned should not be an issue. I keep mine in cardboard boxes, just for convenience.