urin test -you are ok but for haire mmmmmmmmm Hair tests are worse, since your body stores THC in the hair follicles.For the hair test, depending on the amount of hair that the company takes, itâ??s possible that marijuana could be detected up to three years after the last time that you smoke. If youâ??re worried about testing positive, then you should definitely think about some other options to keep from testing positive.