CBD Oil and Drug Test: Will CBD Oil Lead to a Positive Drug Test?

So, you are enjoying the benefits of CBD oil without experiencing the side effects and you go on with your usual day at work — but then, all of a sudden there’s a random drug test. Should you panic or worry about getting a positive result?

Well, if you’re just worried about CBD, then, no, it won’t show up on your drug test. Hence, it won’t cause a positive result. However, the main concern here isn’t really the chance of CBD getting detected. Instead, it’s the possibility that the presence of THC will cause you to fail the test. And since CBD oil is unregulated, there’s really a chance that you will test positive. This is more likely to happen if your product contains more than 0.3% THC, or if you are using marijuana-derived, instead of hemp-derived CBD oil.

Is there a drug test that could detect CBD?

Testing for the presence of CBD is not part of the standard drug test considering that cannabidiol (CBD) doesn’t really get a person “high.” At Quest Diagnostics, one of the biggest drug testing companies in the US, they do not offer testing for CBD and it is not part of any employer drug testing program, says Barry Sample, director of science and technology for employer solutions at the company.

What are the odds that you will get a positive drug test result while taking CBD?

  1. Presence of THC

There’s no other culprit but THC or tetrahydrocannabinol (or one of its metabolites) if you will test positive for illicit drugs while taking CBD. As it turns out, CBD oil can have traces of THC depending on where it was extracted.

CBD oil could come from two major types of cannabis plants — the hemp plants and marijuana plants. Hemp-derived CBD or industrial hemp contains not more than 0.3% THC concentration, while marijuana-derived CBD oil contains around 5%-35% THC. If you are using the latter, then most probably you will fail your drug test because of its high THC concentration.

  1. Cross-contamination

This is more likely to happen if the CBD oil is brought from cannabis dispensaries in places where cannabis is legal. Moreover, cross-contamination is still possible even if THC is present only in trace amounts. This could also happen while the product is around other substances that contain THC — may it be in stores or at home.

  1. Second-hand exposure to THC

You’ve read it right; there is a possibility that you will get a positive result on your drug test after a second-hand exposure to THC. According to some research, the amount of THC that your body absorbs from the secondhand smoke (or any other form of exposure) depends on the potency of the marijuana, as well as the size and ventilation of the area.

Second-hand exposure to THC doesn’t only happen through second-hand smoke. You can also be exposed to THC in other situations. For example, if someone who had direct contact with marijuana touched your hair, you can get a false-positive result in a marijuana hair test.

  1. Product mislabeling

Ideally, CBD products that were derived from hemp should not contain more than 0.3% THC. However, it is not uncommon for some sellers to intentionally label their products as THC-free hemp even if they extracted their oil from marijuana, which has a high amount of THC. This is very much possible since CBD products aren’t strictly regulated.

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How to avoid a positive drug test?

If you are taking CBD oil, there are things that you can do to ensure that you won’t fail a drug test.

  • Do your own research and check for the credibility of the company or the online seller or of the actual shop.
  • Read the product information, know what type of CBD you are buying and find out where it was sourced. Full-spectrum CBD oil has all the cannabinoids present in the plant including, THC, CBD, terpenes, flavonoids, omega fatty acids, and more. Moreover, marijuana-derived CBD can contain more than 0.3% THC; hence, your chance of testing positive is higher if you will use this.
  • Ask questions regarding how the products were processed and determine the possibility of cross-contamination.
  • Avoid second-hand exposure to marijuana use via smoke or hair contact.
  • Find out where the hemp-derived CBD products came from. The quality of the hemp varies from one state to another. Colorado and Oregon are examples of reputable states with longstanding hemp industries and much stricter standards.
  • Quality CBD oil usually has these terms written on the label, or you can read these terms somewhere on the website:
    • Presence of 3rd-party lab report
    • USDA-certified organic
    • CO2-extracted
    • Solvent-free
    • Decarboxylated
    • Pesticide- or herbicide-free
    • No additives
    • No preservatives
  • If a company explicitly claims that their CBD products can treat a certain illness, then, that’s an automatic red flag. The Food and Drug Administration doesn’t allow sellers to make health-related claims.

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The Bottom Line

CBD won’t show up on a routine drug test. And if you want to make sure that your CBD isolate doesn’t really have THC, then, you should buy it from a reliable source.


HealthStatus has been operating since 1998 providing the best interactive health tools on the Internet, millions of visitors have used our blood alcohol, body fat and calories burned calculators. The HealthStatus editorial team has continued that commitment to excellence by providing our visitors with easy to understand high quality health content for many years. Our team of health professionals, and researchers use peer reviewed studies as source elements in our articles. Our high quality content has been featured in a number of leading websites, USA Today, the Chicago Tribune, Live Strong, GQ, and many more.

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