I'm an occasional marijuana smoker, but have been mostly abstinent for 10 months. 10 months ago, I had a 1/8th oz of weed & I smoked daily for about 3 weeks. Since then I have smoked only a few times, the last of which was about 80 days ago. I'm pretty confident that the most recent usage would not be detected. However, my concern is that I am mostly bald & always shave my head. I have no facial & very little chest hair. I've had one hair test before & armpit hair was taken, so I assume it will be the same this time. Given the slower turnover cycle of body hair, I'm concerned that my heavier use from a longer time ago might be a problem. Any insight out there?

It takes six months for the THC in Marijuana to leave your hair follicles. This is how the FBI tests for Marijuana use. Each persons metabolism and body are different though. Good luck.