How Long Does CBD Stay In Your System: Will It Cause A Positive CBD Drug Test

Does CBD show up on a drug test? Will CBD make you positive on a drug test?

If you are asking yourself the questions above and you want answers, this page is for you. We will help you decide if you should take CBD especially if you have an upcoming drug test.

There are different types of drug tests and I will explain them in the following sections. In that way, you will know what to expect especially if you are currently taking CBD and need to undergo a urine test or the likes.

Are you ready to learn? Continue reading.

How Long Does CBD Oil Stay In Your System

CBD oil typically stays in the system for around a week.

If you have a drug test coming up within the next 7 to 10 days, it’s best to avoid CBD products because most of them are formulated with THC.

THC is the psychoactive ingredient in cannabis and is the compound that gets you high.

In CBD products, the THC concentration is kept low to have any noticeable effect. However, even if the percentage is too low, you will still get a small dosage of it alongside CBD.

The effects of THC wear off within a few hours of ingesting marijuana. However, traces of the chemical can remain in your body for weeks

Does CBD Show Up on a Drug Test

Will CBD show up on drug test? Many individuals are afraid to take CBD because they hear various reports that it will potentially make them positive on a drug test.

CBD can indeed show up on a drug test and even yield a false-positive result. Many users claim to have experienced this.

So, yes, it will show up on a drug test. However, the results may vary depending on how much and how frequent you use CBD.

Will CBD Test Positive on a Drug Test

In October 2019, the New York Times confirmed that common drug tests meant to catch THC trigger false positives with CBD. Thus, it is safe to assume that CBD can trigger a positive drug test results.

So, if you are taking CBD and you are going to take a drug test, then don’t be surprised if it shows positive. It’s best if you refrain from using CBD days or weeks before your scheduled drug test.

Will CBD Oil Make You Fail a Drug Test

Will CBD make you fail a drug test? Yes, there are chances that the results will show a false positive and fail you on a drug test.

When it comes to marijuana, drug tests only screen for THC, the compound in cannabis that gets you “high.”

The law allows CBD products to contain up to 0.3% THC.

To pass a urine drug test, the amount of THC in your body must be below 50 ng/mL. That’s the cut off recommended federally by the National Institutes of Health and clinically by the Substance abuse and Mental Health Services Administration, which help set industry standards for lab certifications.

🌿 For you to hit the maximum THC amount, you have to consume CBD with a higher dosage of 2000 mg that contains 0.3% or less of THC. This is much higher than the average person is likely to take.

Clinical trials and research studies only administer 100-800 mg/day. However, this doesn’t mean that you are safe because you can still hit the 50 ng/ml.

There are two ways that CBD might cause you to fail a drug test.

First, THC is fat-soluble. When you ingest it via edibles or a drop of oil under the tongue, it is absorbed along with the other fats and can be stored in the body’s fatty tissue. Depending on how much CBD (and thus THC) you consume, your body weight and your diet, THC could accumulate in your body in as little as four to six days and trigger positive drug tests. THC can be detectable n your system for up to 30 days.

Second, you’ve taken too much.  The product you are using contains more than 0.3% THC. This is due to mislabeling or when the product is not sold as advertised because it contains more THC than what was intended.

Most CBD products claim that their oils, tinctures or capsules contain minimum to zero THC. But not all brands deliver. This is the reason, you should only get your CBD from a reputable brand who provides lab reports indicating exactly how much THC is in their finished product.

How Long is CBD Detectable in Urine

Urine testing for cannabis is common, especially in the workplace. The THC-COOH must be present at a concentration of 50 nanograms per milliliter to trigger a positive test.

The detection windows vary a lot depending on the dose and frequency of use. In general, THC metabolites are detectable in urine for approximately 3 to 15 days after use.

CBD and other cannabinoids don’t immediately show up in your urine. They only begin to show three days after use and they remain depending on how frequently you use.

A single dose of CBD could show up on a CBD oil urine test for 3 days. However, if you use CBD daily and heavily, it could keep showing up to 30 days or so. According to, cannabis can be detected 7 to 30 days in one’s urine.

Does CBD Oil Show Up in a Blood Test

Does CBD show up in a blood test? There’s a slim chance that it might and a higher chance that it will not.

Blood tests use blood samples to detect the presence of a variety of different drugs on your system including amphetamines, cocaine, and opiates.

Although they are capable of detecting marijuana, they are not very reliable in this respect because THC only lasts about six hours in the bloodstream for most users but those who use it heavily could test positive for up to 24 hours.

🌿 Blood tests for CBD have a high rate of false negatives simply because the test doesn’t work long enough to detect actual use. Thus, blood tests aren’t the preferred way to test for CBD or other cannabinoids because they don’t work for very long.

Blood tests are the most accurate for drug testing (but not typically for THC). But they are less preferred because they are the most invasive and expensive as they require high-tech medical equipment and trained lab techs.

Will CBD Show Up in a Saliva Test?

Saliva tests are not common, but they are becoming more and more popular when it comes to detecting substance use, in particular, marijuana. One of the reasons a mouth swab test is preferred is due to its reliability.

It is very difficult to cheat on this one because anyone can slip a clean urine sample into the container from behind the privacy of a bathroom door, but not with a saliva test.

Saliva also allows for much faster detection since tester’s don’t have to wait for your body to pass the drug through urine. It is non-invasive and allows for quick collection and processing.

However, THC is only detectable in oral fluids for around 72 hours, so it is likely to give false-negative results. But chronic and heavy use may be detected for much longer.

Will CBD Show Up on a Hair Follicle Test

Hair follicle tests aren’t common. There are no established cut-off limits for THC metabolites in the hair. Private industry cut-offs include 1 picogram per milligram (pg/mg) or THC-COOH.

The process relies on the trace amounts of drugs being collected in the hair follicle, which can be easily detected.

This type of test generates more positive results than any other due to the wide timeframe that other tests don’t cover. A hair test can detect the presence of marijuana and other illicit substances for 90 days or even more.

A 2015 research study conducted in Baltimore, Maryland, examined the effectiveness of hair follicle drug tests in 360 adults. The study accurately revealed that 52.3% of people confirmed recent marijuana (THC) use.

🌿 A 2017 study of hair follicle drug tests involving 3,643 participants was conducted and the researchers found that the results produced were more potential false negatives than false positives. Researchers concluded that hair follicle drug tests were not reliable for testing drug use.

Thus, the hair follicle drug test is not that reliable as the results of the two studies didn’t show the same success rate.


CBD can stay in your system for a couple of days or longer depending on how much and how frequent you take CBD. Also, the type of drug test may matter – urine test is the most reliable of the aforementioned tests when it comes to detecting THC.

Also, when taking CBD and having to undergo a drug test, there is a possibility that the result will be positive. So, if you are taking CBD and drug testing is in the cards because you have the annual company check-up or the likes, it’s best to abstain from any CBD products.

If you wish to learn more about CBD, feel free to visit our homepage.


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