Thanks for the FYI. Someone told me that the place I'm trying to get a job at is now doing hair test. Holy Crap Batman! What am I to do now? I'm almost clean, been 3 weeks today, but that is only going to work for a piss test. I don't know how true the hair test is, and the application only say urine test, but what do I know. I figured if I go in there with clean urine what else can I do about the hair. I thought about buying some of that stuff, it's nice to know it wouldn't matter anyway. So anyway, there I have it, don't waist my money. One question, does anyone know if they can tell exactly how long ago you smoked it? Only reason I ask is I know it goes back like 7 years but they only ask if you have done any illegal drugs in the past 6 months. If I check no, but they still were to find it in my hair can they pin point when and for how long?