I was on probation for like 2 years and wasn't smart enough to just quit smoking, but never popped hot.
Can't recall the exact brand, because this was damn near 20yrs ago, but there was one at Planet K that looked almost exactly like an orange gatorade. I would think most of them are the same. Good luck w/ the pre-test today.
If you want to go overboard, drink a jar of pickle juice and a shitload of cranberry juice the day before the test. Basically flooding your system w/ vinegar and flushing w/ cranberry. Take the detoxifier as directed - usually an hour or two before piss time. Keep drinking water. If they come back to you and say your piss is too clear, tell them you can't help how you pee and if they want to wait for another round, you're more than happy to provide, as you were hydrating to make sure you could produce. The second sample will still be clear, but they shouldn't give you enough shit to come back another time.