From my research when the oil is CBD Isolate, it can have just no more than 0. 003% THC. Which, unless you use a lot of it shouldn't show up. I am on probation and did regarding 20 days of CBD Essential oil. I really liked it specifically for stress. Made work a breeze as well as didn't argue with my Lady just as much.I'm just counting' down the times til i can toke once again. For now its nice passing pre-employment drug tests without any worries. For more: What is CBD? Thank You.