How long does CBD stay in your system? As CBD continues to rise in popularity, more and more people are beginning to try CBD for it’s potential health benefits. Since CBD is somewhat similar to THC, or tetrahydrocannabinol, some people are worried about CBD showing in a drug test. Will CBD show up in a drug test? How long does CBD stay in your system?

These are two excellent questions, and I’m going to do my best to answer them for you. Based on existing research, I will discuss the factors influencing CBD’s lifespan in our bodies.

CBD vs. THC (Cannabidiol vs. Tetrahydrocannabinol)

Who doesn’t know about CBD’s potential health benefits by now? If you don’t that’s okay, but you are falling behind the curve (haha)! Most people have learned about the possible therapeutic effects of this non-intoxicating compound. Cannabidiol, an abundant substance in the cannabis plant, has been deemed useful in various physical and mental conditions. These studies are coming from prestigious research centers and education centers, too. Pain-relieving, anti-inflammatory, and mental health improvements are only a few of the highlighted properties of CBD.

Cannabidiol (CBD)

CBD is generally considered safe due to its non-psychoactive properties and lack of side effects, but few people may feel hesitant using it due to it’s cannabis origin. People associate cannabis compounds with drug tests for THC, which makes since. I can see how people would be worried about that, but should they be? How long does CBD stay in your system?

Remember, CBD doesn’t get the user high like THC does. Still, people are likely to believe the old stigmas and want to know if CBD will make them test positive on a drug test, and how long CBD stays in their system.

A effects from a dose of CBD can be felt for several hours, and typically, it may stay in the body in trace amounts for over a week. The length of time CBD stays in your system depends on several factors such as body type, body composition (amount of fat content), the method of consuming CBD, and the user’s metabolism. According to Epilepsy Current, “Following single doses in humans, the half-life of CBD when taken orally is about 1 to 2 days.” That means that it takes roughly 2 days for the dose of CBD to degrade by half. It takes roughly 4 to 6 complete terms to completely go away. 

That means that if we take the 2 day half-life of CBD, it would take anywhere from 8 to 12 days for it to degrade out of our body, completely (2 days multiplied by 4 or 6).

Hemp-derived CBD products are fully legal in the U.S following the passing of the Farm Bill 2018. But there is still a need to know more about CBD’s interaction with the human body and how long it’s effects remain in our system.

How Long Does CBD Stay In Your System?

If we take the information from above, we can figure out that, typically, CBD stays in your system for roughly one week. Keep in mind this duration varies from person to person. How long CBD remains detectable in the body depends on several factors such as metabolism and body composition.

In order to figure out how long any substance stays in our system, we need to consider the half-life of that substance. What do I mean by “half-life?” A half-life is the amount of time needed for any specific substance (i.e. the concentration of CBD in the body) to decrease by half. Nearly 94 to 97% of a substance (CBD in this case) will be eliminated after 4 to 6 half-lives have passed. After 4 to 5 half-lives have passed, the plasma levels of a drug (CBD) will be below a clinically relevant concentration and thus will be considered eliminated (Jericho Hallare & Valerie Gerriets, 2020).

Above, I mentioned the half life of CBD is 1 – 2 days. If we take 2 days, and multiply it by 6 (longest case scenario) you end up with 12 days. The shortest case scenario would be 2 days multiplied by 4 which gives you 8 days. Based off of this math, CBD can stay in your system for anywhere from 8 – 12 days.

Drug Test Results of CBD Use

The purpose of most of the drug tests is to identify the amount of a drug in our system. Typically, CBD won’t show on a drug test, but THC will. Many of the CBD products contain a trace amount of THC, which would theoretically cause a positive drug test result. However, the amount of THC in legal CBD products is so miniscule that drug tests for THC will not show as positive. It is important to avoid any false positives for THC on a drug test by making sure the CBD product is derived from hemp – not marijuana.

Furthermore, the quality of the drug test can have an effect on positive results. The better quality the drug test, the less the likelihood that a false positive for THC will occur.


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