Your Basket

You have no items in your basket

How long is CBD detectable in urine?

CBD as a natural supplement is rising in popularity, but some people ask, ‘Does CBD show up on a drugs test?’. You may need a drug test for various reasons, including for professions like athletes or law enforcement.

As a general rule, pure CBD oil shouldn’t show up on a drug test; they usually search for specific amounts of THC, and CBD only contains trace amounts. However, there are CBD tests available and with the slim possibility CBD causes a false-positive result, it’s essential to understand how it leaves your body.

Does CBD oil get you high?

Firstly, it is crucial to understand that CBD oil is not a psychoactive drug. As it is closely related to marijuana (also known as weed), there is some confusion around the substance. Within a cannabis plant, there are over 100 cannabinoid compounds present; two of these are CBD and THC. Unlike CBD, THC (Tetrahydrocannabinol) is the compound that causes a ‘high’. Moreover, during production, farmers clone a hemp variant of the cannabis plant, which contains a low THC level compared to the marijuana variant.

When the CBD gets extracted, most of the THC is removed from the product to abide by local laws. Here in the UK, any CBD product must contain less than 0.2% of THC – this is not enough to cause intoxicating effects. In comparison, here at ULU, we go the extra mile and make sure our products contain less than 0.0005% THC – virtually zero.

Determining how long CBD remains in urine is not a straightforward task because different factors will affect it.


Hemp Leaves used to make pure CBD oil

Factors that affect how long CBD stays in your system:

  • Dosage: The amount of pure CBD oil you take will affect how long it stays in your body
  • Frequency of use: How often you take CBD products will also impact how long it is detectable.
  • The last time you consumed pure CBD oil: Whether CBD oil is detectable also depends on the last time it was taken.
  • Physical factors such as genetics, metabolism, age and weight: CBD is stored in the body’s fat cells because it is fat-soluble. Consequently, Your Body Mass Index (BMI) will affect the speed of metabolism; CBD will remain in your system for longer if your body mass and weight are higher.

How you take your CBD can also affect how long it stays in your body. For example, a method such as vaping allows CBD to enter the bloodstream almost immediately. In contrast, capsules would take an hour or two. Some popular methods include:

  • Vaping
  • Capsules
  • Oils
  • Edibles

What urine test is used to detect CBD?

Just because you cannot feel the effects of CBD anymore, it doesn’t mean it has left your body. In most workplaces, urine tests are the go-to option because alternatives like blood tests do not detect THC for long enough. Unfortunately, however, there is little research around how long CBD is detectable in the urine. Although here is what we do know.

In pharmacology, there is a term called ‘half-life’, which refers to how long it takes for a drug to reduce to half its original value. A 2016 review administered a single dose of CBD to five participants, and the average half-life came back as 27-35 hours. These figures give us an indicator of how long CBD remains in the body. Moreover, in the same year, the ‘Journal of Pain’ reported a study in which 15 participants consumed different CBD products. Two hours after consumption, all participants tested positive for CBD. Although only one subject was tested again after 24 hours, and the CBD was no longer detectable.

It seems as though if someone takes a higher dose or is a frequent CBD user, then the substance is likely to stay in your body for much longer. If taking a heavy dosage of CBD, one study showed it could stay in your system for up to a week, with some detection methods extending this to a month.

How long does weed stay in your system?

To give us a better understanding of how the body reacts to cannabinoids, we can look into how long does weed stay in your system? Weed, also referred to as marijuana, contains a significant THC amount, which tends to be detectable for 1 to 30 days.

A single dose is detectable in urine for 3 days after the last administration when it comes to THC. Although, if you’re taking regular amounts of THC (10mg-100mg), a drug test could detect it in your body for 4 days. Moreover, larger doses will be detectable for a month.

Finally, according to the Mayo Clinic, daily users could have THC metabolites detectable in their urine for as long as 15 days after the last administration. However, as we have discussed, many factors could vary this, including dosage and genetics.

A women taking CBD oil

Does CBD show up on a drugs test?

In most cases, it is unlikely that CBD will show up positive on a drug test. Although CBD has substantial benefits, it would be unusable for law enforcement and athletes if it came up on a drug test. There are CBD drug tests available; however, they are expensive, and most cannabis tests look for the presence of THC. Alongside urine tests, there are a variety of other methods to test for the presence of drugs, including:

Blood Test:

Workplaces don’t tend to administer blood tests because THC leaves the bloodstream very quickly – in some cases after a few hours.

Hair Test:

Although uncommon, your hair holds an abundance of information about you; even after a trim, body hair holds this information. Only an inch and a half of hair is used during a test – equivalent to the last 90 days of your life. Therefore most hair drug tests can detect THC up to 3 months after use.

Saliva Test:

Saliva tests are another uncommon method because THC is only detectable in oral liquids for up to 72 hours after consumption. This time may increase if someone uses a higher dosage or consumes THC daily.

A women in the lab doing a test to detect how long CBD remains in the urine

Can CBD oil cause a false-positive test result?

Although it is unlikely, there are some reasons CBD oil may lead to a false-positive test result. 

Product mislabelling:

There is little regulation around CBD; therefore, product marketing has occasionally been incorrect, and products get mislabeled. These issues are unfortunate for the reputable brands out there who ensure their product is safe and legal. Consequently, it is essential to do your research and find a brand that complies with UK laws around pure CBD oil.


Cross-contamination during production is another reason for a false-positive result, especially if a brand makes both THC and CBD products.

Things to consider when buying pure CBD oil:

To combat these issues and ensure your CBD is legal and suitable for you, we have outlined our top tips for choosing CBD oil.

  • Do your research to find a trusted brand. Look out for companies that third-party test their range. Read our lab reports here!
  • Look at the amount of pure CBD oil each product contains and where the CBD comes from.
  • Where possible, go for organic CBD as this is better for your body and the environment.


Summary: How long is CBD detectable in urine?

To conclude, the research regarding CBD in urine is limited, so it’s beneficial to look at similar substances and ask, how long does weed stay in your system? Looking at CBD half-life and how long marijuana remains in your body shows us that it varies from a few days, one or three months. Finally, factors such as metabolism, dosage and frequency will affect these times.

Show U love U with our organic CBD oil.

Share this article
signup to our newsletter

We’d love to send you exclusive offers and the latest info from ULU by email. Stay up to date with the latest wellness news, products, special offers, and more.

We treat your details with the utmost care and won’t share them with any third party. You can, of course, opt out of these communications at any time! See our Privacy Policy for more info