I read the company I was going to work for does a urine screen, but today I got instructions to go to Psychemedics to have a hair test. On the form there are checkboxes for head, armpit, chest, leg, other. I plan on shaving everywhere but the head. I have been clean for over 4 months, but 3 weeks ago I smoked a small bowl of kind bud. We are really freaking out since this is a big job. I'd rather do what I can instead of hope I'll be OK. My hair is thin and I keep it short, it is just under 1 1/2 inches. Should I do zydot, and maybe a light mac method? I'd rather not do a bleach and dye if possible. Any advice would be greatly appreciated. I need to do the test within 72 hours.