Easing Your Worries: How Long Does CBD Oil Stay in Your System?

How long does CBD oil stay in your system

As more and more people discover the positive effects of regularly using CBD, workplaces are beginning to come across the issue of testing for the substance in their drug screenings. This has led many employees to wonder whether that non-psychoactive, harmless substance they’ve been taking may have more harmful effects on their career.

In reality, most likely, CBD will not cause anyone to have a positive result on employer drug tests. It is important to note that the staying power of any substance will fluctuate from person to person.

So, How Long Does CBD Oil Stay in Your System?

Should You Be Worried?

The short answer is no, you most likely should not be worried about CBD staying in your system. Alone, CBD generally is only detectable for about a week after taking it.

Most workplaces are drug testing for substances that cause inebriation. Cannabidiol does not cause any sort of mental impairment for the user and a lot of employers consider it a therapeutic treatment, not a recreational drug.

Employer drug screening does typically look for THC. Most CBD products include trace amounts of THC (up to .3%).

With such small amounts of THC, a person would have to take more than 1000 to 2000mg of hemp-derived CBD to have a drug test come back positive, which is much more than any normal user would consume.

Factors Affecting How Long CBD Stays in Your Body

What Type of CBD You Take

Should you be concerned with how long CBD oil stays in your systemBasically, the quicker absorption methods like taking it sublingually or smoking/vaping also leave your body more quickly than the slower absorption methods, such as eating edibles or using topicals.

How Frequently You Take CBD and How Much You Use

The more you use CBD, the longer it will stay in your body. Similarly, if you take larger doses, it will stick around in your system for a longer amount of time.

Body Weight

Research has shown that people with high Body Mass Indexes (BMIs) who use CBD regularly will have the substance stay in their bodies for a longer period of time.


Having a fast metabolism helps your body lose any traces of CBD more quickly. How recently a person has eaten also affects how quickly the substance metabolizes in the body.


People who are more active will most likely have CBD expelled from their system faster. Other lifestyle choices that help metabolize the substance more quickly are a high-fiber diet with all of the needed vitamins and minerals, drinking more water, not smoking, and getting enough sleep.

The Science

There have been many studies published on this subject, proving how quickly CBD leaves a person’s body.

In 1991, researchers from The University of Arizona gave patients with Huntington’s disease 700mg of CBD every day for six weeks. After a week of not taking the substance, all of the patients showed such small traces of CBD that it was almost untraceable.

Scientists in Germany also tackled this subject in 2005. Their subjects were given pills with 2.5mg of THC and 1.35mg of CBD. Six hours after taking the pills, the subjects were not showing any signs of CBD in their systems, while THC was still found in their samples over a day later.

Still Worried?

Here are some tips and tricks to help ease any concerns with impending drug tests:


Using topical CBD products can relieve pain issues, but (more importantly) they do not enter the bloodstream.

Don’t Take Too Much

Ingesting more than 2,000mg of CBD in a day can affect drug screening if it’s taken in a relatively short period of time.

THC-Free CBD Products

While there are CBD products on the market claiming to not contain THC, the industry is not heavily regulated. Without published lab test results, a consumer cannot be certain about the amount of THC in the CBD they are taking.

In addition, using a full-spectrum product can have much more powerful healing properties. The trace amounts of THC in a full-spectrum tincture should have no effect on drug testing when taken as recommended by the company.