We have two unique labs test our product to confirm there is no THC found. Our certificates of analysis show a detection limit for THC of 0.001%. The secondary testing we do further tests THC to show it is non-detectable at 1-2 parts per million (ppm).
Please note, however, that some drug tests are so sensitive they will pick up on trace amounts of THC or falsely identify THC (mistaking CBD for THC) on a test after someone has ingested broad spectrum or even isolated CBD products. That being said, if you have to pass a drug test that screens for THC, please know you are taking a chance when using any CBD product.