Haha I'm pretty sure that hair test can detect use within the past couple years. I don't think it is much the hair they test but the follicle at the bottom of your hair when they pull one out. That kind of test isn't really fair and isn't used commonly becuase you could have quit months ago but still come up positive.
ganjah Reviewed by ganjah on . HAIR TEST!!! NEED HELP!!! my school is deciding to give me a hair test and i stop smoking so i can pass. I did give in though and im afraid i might not pass. Does anyone have anything that can shed some light for me??? Rating: 5