Will CBD Oil Show Up On A Drug Test?

Will CBD oil show up on a drug test

Recently, CBD (cannabidiol) oil has surged into the therapeutic spotlight due to its perceived seizure-suppressing, anti-anxiety, pain-relieving, and anti-inflammatory properties. However, with the increased popularity and consumption of CBD oils comes the concern of detecting CBD and THC or its metabolites in a drug test. This is because drug testing is now common in the United States, and failing a drug test can have catastrophic consequences.

So, will CBD oil show up on a drug test? Why will CBD oil cause you to fail a drug test, and what can you do to avoid failing a drug test? The answers to these questions and more are just a few lines away.

Will CBD oil show up on a drug test?

In most cases, CBD oil will not cause you to fail a drug test. In fact, most people successfully passed a drug test even after many days of prolonged CBD use. Most employers, pain-management doctors, and law enforcement agencies abide by the SAMHSA guidelines, which include THC detection and exclude the detection for CBD. That is because CBD is non-intoxicating as it does not create the high that is associated with THC.

But what if the CBD you consume has some traces of THC? You may fail a drug test since the THC is basically what is being tested during a drug screening.

Many top CBD brands produce CBD oils with no THC. Even though CBD products with THC are legally allowed, if they contain 0.3% THC or less, some prospective users will be reluctant to try them due to their THC content. Thankfully, you can still find a CBD product that has no traces of the intoxicating compound.

For example, some top CBD companies offer products with infused pure CBD. This CBD has been isolated from other cannabinoids and naturally occurring compounds present in the hemp plant during the extraction process. Taking this type of CBD products that have no traces of THC and other plant-based components will lead to a zero risk of drug screening failure even if they are used in high quantity.

However, you must be careful about the CBD product you take. That’s because some brands may state that they eliminated THC from their product, which may not be entirely true.

Why will CBD oil cause you to fail a drug test?

As mentioned above, the presence of THC and other illegal or controlled substances is what drug tests are usually looking to detect. The CBD oils you find in local and online stores are made from the hemp plant and not from marijuana. That is because hemp is high in CBD and has only a trace amount of THC, unlike marijuana strains that have a high amount of THC content.

By law, any hemp-derived product must have 0.3% THC or less; this is why they do not produce any high. However, the trace amount of THC they contain is enough to show up on a drug test.

Factors Affecting The Risk of Failing a Drug Test

Type of CBD product

Full-spectrum CBD oil contains different naturally occurring plant-based components of the cannabis plant, such as CBD, THC, terpenes, and more. The levels of THC in this type of CBD product is detectable, so they pose the highest risk of failing a drug test to its users. Isolate CBD and broad-spectrum CBD products contain negligible amounts of THC. They carry a lower risk as their THC content is minimal and undetectable according to their producer’s testing.

CBD Oil Dosage

People who take an average of 25 mg to 50 mg of CBD oil per day are more likely to pass a drug test than people who consume much higher doses.


The rate at which your body breaks down and absorbs THC and other natural compounds in the cannabis plant will determine how long these compounds will remain in your body system. People who metabolize THC and CBD oil faster than others will have a lower risk of failing a drug test.

Usage Duration

New CBD users often have a lower risk of failing a drug test than experienced users who have been using the product for a prolonged period. However, this depends on the users’ metabolism as THC levels can build up with time.

Mislabelled Products

Hemp-derived CBD oil is not allowed to have more than 0.3% THC. However, some suppliers mislabel their CBD oil products as THC free hemp when it actually contains THC or extracted from marijuana. In fact, a study found that up to 70% of the CBD products available in online stores are not appropriately labeled. The FDA does not provide strict regulations for CBD products, which is why there’s widespread product mislabeling.

Secondhand THC Exposure

Although accidental marijuana exposure (via secondhand smoke) may not be enough to trigger a positive drug test result, you can fail a drug test because of this. You may inhale the smoke that contains enough THC that can trigger a positive result when you stay in the same room with a heavy smoker for several hours.

What does THC free Mean in the CBD World?

A CBD oil product that is marketed as “zero THC” or “THC free” does not mean that it contains no trace amount of THC. In the CBD world, it means that the product’s THC levels are below the testing laboratory or manufacturer’s limits of detection. This limit of detection is the lowest amount of a substance that the testing equipment of a lab can detect.

For instance, a product with a third-party lab report that shows “<LOQ” (less than the limit of quantitation), “ND” (none detected), or 0.0% THC level can still have traces of THC of about 0.03%. If a more sensitive drug test is conducted, it can still detect this trace amount. However, you may not test positive if you’re taking the average daily doses of this product.

How Long Does CBD Stay In Your System?

According to Healthline.com, the type of drug test being administered determines how long THC is detectable in your body system.

Hair testing

  • Up to 3 months

Saliva testing

  • Heavy users (multiple times a day): 1 to 29 days
  • Occasional users (up to 3 times a week): 1 to 3 days

Blood testing

  • Up to 25 days

Urine testing

  • Heavy users: more than thirty days
  • Regular / daily user: 10 – 15 days
  • Moderate users (4 times per week): 5 – 7 days
  • Occasional users: 3 days

What Can You Do To Get THC Out of Your System Quicker?

According to users’ recommendations, eating healthy, exercising, and drinking a lot of water may speed up the process. However, the amount of time THC takes to leave the body system depends on different unique factors for each individual.

What Can I Do To Avoid A Positive Drug Test?

If you consume CBD oil regularly, below are some measures you can take to avoid a positive drug test.

  • Carry out intensive research on your specific CBD product to ensure that it is pure and from a reputable company.
  • Ensure the product is not a low-quality tincture but is made from an 0isolated CBD extracted from a quality industrial hemp source.
  • Ask about the processing techniques used when extracting and manufacturing the product.
  • Avoid secondhand and accidental exposure to THC by avoiding hair contact from THC users or staying in the room with a heavy marijuana smoker.

Drugs like dronabinol, efavirenz, pantoprazole, and NSAIDs like sulindac, naproxen, and ibuprofen can cause a false-positive result for THC or cannabis on a urine drug test. So, consult with your physician before taking these medications.

Final Words

Not every CBD oil user will test positive for THC. In fact, getting a false positive result on a drug screening from pure CBD oil products with less than 0.3% THC should be relatively impossible. However, CBD products are not well regulated by the FDA, so there are zero guarantees that a product contains THC at effective or safe levels. So, tread cautiously and do proper research before you purchase a CBD products.

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