Regardless of how you take it though, the effects can typically last between one to three hours.
Furthermore, some tests are more effective at detecting THC and for longer periods of time. The type of drug screening you’re administered – and how long after you last took CBD – could influence whether it’s detectable.
How Long Does CBD Stay In Your Urine?
This can be particularly worrisome if you are searching for jobs or need to consent to drug screenings for other reasons (e.g., being on parole). It’s a common misconception that CBD and THC are the same; while CBD is a natural supplement, it’s still possible for the THC metabolites to be detected during drug screenings.
Different drug tests have different cut-off levels. Legally, hemp products can contain up to 0.3% of THC.
How Long Does CBD Stay In Your Hair?
If you smoke dried flower CBD or use a vape cartridge, the CBD enters your bloodstream within seconds. Therefore, brain effects associated with CBD occur the quickest in this manner.
CBD effects last 90 minutes to several hours, depending on how it is consumed. The body turns CBD into the byproduct CBD-COOH in a matter of hours, and then it sticks around for at least several days. But it doesn’t matter, because no employer is testing for CBD-COOH.
Sample said Quest Diagnostics does not test for CBD. THC, however, is on the lengthy list of drugs they test for.
Here’s how drug tests work. Employers collect and send off samples—largely urine—to drug testing companies who run them through a machine that can measure trace chemicals in the liquid. Technicians look for evidence of a byproduct of THC, the main active cannabinoid in cannabis — not CBD. (More rarely, employers may test saliva, hair, or blood from their employees. We’ll get to that in a minute.)
Does CBD show up on a mouth swab test?
Multiple human trials of large doses of oral CBD have never resulted in the detection of THC in the blood plasma of test subjects—so if it’s happening outside of a lab beaker, no one’s proved it. Dr. Ethan Russo debunked the stomach acid theory in Trends in Pharmacological Sciences forum article Cannabidiol Claims and Misconceptions.
Again, it’s not the CBD. But flunking a THC drug test because you took CBD depends on the source of your CBD, how much you took, over how long, your metabolism, and other factors like hydration levels.
Workers who use a lot of CBD (cannabidiol) for pain, anxiety, insomnia, or a host of other symptoms, can accidentally (and unfairly) fail drug tests for cannabis in certain cases, media and experts report.
Why is there THC in my CBD oil?
You won’t fail a drug test for CBD, but you could potentially fail a drug test for any residual THC in that CBD product.
CBD water marketers have trumpeted this claim lately to sell CBD water over other forms of CBD, said Gerdeman at United Cannabis, which makes and sells wholesale CBD isolate.
What are the odds that CBD oil users will test positive when subjected to illicit drug screenings? And what can be done to prevent it?
Use the utmost caution and do your research when purchasing a quality CBD oil product to ensure its purity, especially if you need to undergo a drug screening.
A Word From Verywell
A study conducted at the internationally known Lautenberg Center For Immunology and Cancer found that CBD was more effective at treating inflammation and pain when used with other cannabis plant compounds.