Hey fellow tokers, I am new to this board but I have been partaking for about 5 years regularly. I have substituted on drug screens about 8 times, always good results. Last year I moved to AK and don't know anyone clean, so I bought the Magnum synthetic urine. I passed the test at Labcorps, no problem. Well, long story short, I am planning on moving and took another screen at the local Urgent Care center for a great job, so I bought some more Magnum. Everything went smoothly, it was 96 degrees and the girl was nice as could be. Two days later I got a call from my would-be boss saying that they found "characteristics not consistent with normal human urine" and they were rescinding the job offer. WTF?? This crap has a 400% guarantee! Do yourself a favor and find the real stuff, they are onto the synthetic! You have been warned, hope you all learn from my lesson!