April 14, 2021


Drug Tests and CBD: Everything You Need to Know

Even though CBD has been declared legal by the FDA, there are concerns about certain products causing problems with drug tests. Here’s what you need to know.

In the last few years, the popularity of CBD has increased by a substantial amount. No longer is it the hush-hush topic gone undiscussed by people in fear of being judged - now it’s for sale in gift shops, movie rental stores, and other highly-frequented shopping centers.  CBD is more common than ever, but there is still a lot of confusion centered around it. What is CBD? Is CBD legal? Will CBD show up on a drug test? How long does CBD oil stay in your system? It’s understandable why people want answers to these, and this article will help to shed light on what is perhaps one of the more high-stakes questions.

Will CBD oil show up on a drug test?

The short answer is no - CBD oil itself won’t usually show up on a drug test. The caveat to that answer involves THC, though, which may be included to a small degree in some CBD products. While the FDA requires that all CBD products contain less than 0.3% THC, hemp extract products from Koi CBD are tested down to 0.0001% and contain no detectable THC. Smokable CBD hemp flower from Koi may contain detectable amounts of THC, but still comply with the 0.3% requirement. But keep in mind, just because it meets the requirement for producing and selling CBD products, it may still be high enough to prevent someone from passing a drug test. For legal reasons, Koi cannot make any guarantees or claims on the outcome of a drug screening, and any reputable CBD company should tell you the same thing. If you are subject to drug screening, we recommend not using any CBD or hemp products for up to 2 weeks before your test - just to stay on the safe side.

Is CBD legal or not, though?

While CBD is legal, THC, the cannabinoid responsible for intoxication, is still illegal in the eyes of the federal government.  CBD is legal according to the FDA but each state has its own rules regarding production, sale and consumption. Users are encouraged to familiarize themselves with the laws in their particular states, because each state’s laws are constantly changing.  It’s important to keep in mind that different drug tests employ different methods and may be able to detect smaller amounts of THC due to outside factors. And depending on the specific reason for your screening (eligibility for job, probation requirements, or participation in athletic competition), you might actually be disqualified if even CBD is detected, regardless of the fact that it is legal.


Understanding CBD as one molecule among hundreds of cannabinoids produced by the hemp plant can be confusing. Some people assume it’s marijuana, which it is not. Others have no clue what it is at all. So, what is CBD? CBD (also known as cannabidiol) is a chemical compound from the cannabis sativa plant - also called marijuana or hemp. It’s a product that’s naturally occurring, meaning it’s found in nature, and can cause effects such as relaxation, balance, and overall wellness. It should not be confused with THC, which is the main ingredient that distinguishes marijuana from hemp. 

How long does CBD stay in your system?

There’s no ‘one and done’ answer when it comes to this question - there are a lot of variables to take into consideration, such as: How much CBD you use
  • The higher the amount, the longer the CBD will stay in your system.
How often you use it
  • CBD builds up in your body over time. If you’re a regular user, the CBD stays in your system longer. If you’re a first-time or just an occasional user, it leaves your body much quicker.
Your body
  • The variables of your body can change how fast or slow the CBD leaves. Things such as body mass index, water content, and your rate of metabolism should be taken into account.
  • CBD will actually stay in your system longer if taken on a full stomach. On an empty stomach, it will be metabolized more quickly and therefore exit faster. 
  • Different methods of ingesting CBD make for shorter and longer stays. When using vapes, for example, the CBD exits your body faster than when you ingest it using oils and tinctures. 

Better Safe Than Sorry

If you are subject to drug screening, we recommend not using any CBD or hemp products for up to 2 weeks before your test. Although the chance of failing a test may seem small if you are careful about the CBD products you're using, often the stakes associated with passing a drug test are high enough that you would not want to risk it. As always, if you have specific questions or concerns, feel free to reach out and ask one of our customer service experts about anything you want to know!

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