Topical products that claim to contain CBD—like shampoos, cosmetics or creams—should not cause any reaction during a drug test because they do not enter the bloodstream. In the case of CBD oils, gummies, teas or transdermal patches, the situation is more complicated. In a test of 84 CBD products obtained online, 18 contained THC.
If you are concerned that THC in your CBD oil or other CBD product may show up on a drug test, you may be able to reduce the chance of that occurring, though there is no guarantee. Some of the factors that may increase the likelihood of a failed drug test are:
Factors in CBD Oil Showing on Drug Screen
THC can be detected in a urine test for up to 15 days, depending on how often and how much you use. It leaves the bloodstream in about five hours, but substances your body makes from THC (THC metabolites) can show up for as long as 7 days. CBD tends to stay in the bloodstream from 2 to 5 days, depending on dosage and frequency. If you have been using CBD for a while, it can stay in your body for up to 30 days or more.
The legality of CBD products can be confusing. CBD products made from certain cannabis plant varieties are legal only in states where marijuana is legal, due to the potential THC content. CBD products made from hemp variety plants are legal throughout the United States as long as they contain less than 0.3% of THC and do not make any medical claims. (A hemp plant is defined as Cannabis sativa that contains less than 0.3% THC.)
CBD products can still be problematic, however, when it comes to drug testing. Though drug tests screen for THC, not CBD, many CBD products contain a trace amount of THC which will be detected in your bloodstream during a drug test.
The 26-year-old video producer from Reno, Nev., was shocked when a drug test he took as part of a job application came back positive for marijuana. The problem? He hadn’t used marijuana, he says. Instead, J.C., who prefers not to use his name, had taken CBD, or cannabidiol, from hemp to help with sleep and anxiety. And unlike THC, a related compound in cannabis plants, CBD can’t get you high.
Other states, such as likeCalifornia, Montana, Oregon, and Washington have laws to assure that companies located in those states do not have to provide “reasonable accommodations” for people who use medical marijuana, and leave it up to each employer to decide, Reidy says. In those states, though, it’s still worth asking your company’s HR department about it if you’ve failed a drug test for marijuana after taking CBD.
Not always, even though it’s legal. Here’s how to protect yourself.
Plus, he says, in some cases that percentage is based on the weight of the whole plant, or on the weight of the buds or flowers, which tend to have more THC.
After losing his job because of the failed drug test, the lawsuit says Horn purchased a sample of the CBD product, had it tested, and found that, contrary to the claim, it did contain THC—enough, the lawsuit alleges, to cause a THC level in his urine of 29 nanograms per milliliter (ng/mL). That’s double the amount that typically triggers a positive result, says Sample at Quest Diagnostics.
Mislabeled CBD products are a growing problem for American workers, Sample believes. “It’s buyer beware,” he says. “There’s not always truth in labeling on the products.”