First check would be "one of those 50 companies that make different home tests." I have never pissed dirty into a cup and failed a first check test, then an hour later pissed into another cup and added visine and passed. This would be the only way to know for sure. I bet First check is using more advanced technology than 1989 because it is a big seller.
FakeBoobsRule Reviewed by FakeBoobsRule on . Want to Pass? Well, I thought I'd give this a try back earlier on probation and it worked, but I got caught through a 2 sided mirror my third time doing it... which wasn't great, but I'm off probation now :) Erowid Drug Testing Vaults : Misc Info Read that carefully, basicaly you need to use a certain amount of visine depending on your urine sample size, it elaborates how much visine you should use very well, I used 6 ML on each sample and passed without a contamination complant because you're using Rating: 5