Quick Fix - Does it expire?

I get random piss tests at work. I want to get some quick fix, or something similar. Sometimes, they go up to a year without testing me, sometimes I have to take 2 or 3 tests in a single month. How long is quick fix good for? If it does expire, would the powdered piss be better?

I don't know that it does expire but I've used it multiple times and worked every time. The longest though that I've ever had one sitting around was for about 2-3 months and it still worked. And who knows how long it was sitting at the shop for.

So their youtube video comments section says it does not expire. They do change the formula occasionally, if yours isn't the newest version they'll send you the new one free. I guess I'll order some.