I tried that "Urine Luck" product and failed the test. Was a good job, too.
They sent me to a hospital, and the lab techs knew i added something to my sample. They asked if I had altered or added anything to my cup, which I denied, but then they wanted me to go take the test again, ... I failed.
You only get your 200% money back if you provide proof of the failed test. What am I going to say? "Can I get a copy of that test, since I want to get twice my money back for this product?"
There are 2 different ways I have been tested in my life.
1. Instant test cup.
--- These are the cups with the little test strips on the side, that can easily be fooled.
2. Go to a Lab.
--- These technicians are well versed in dilutants, synthetics, and additives. You will fail these.
If your piss is dirty, hope your employer uses the 1st type of test. Otherwise, find a new job.