Does CBD and CBG show up on a Drug Test?

does cbd and cbg show up on a drug test

Have you ever considered how CBD and CBG show up on a drug test? Do you have one upcoming test and wonder how CBD and CBG show up on the drug test? A study published in the Journal of Analytical Toxicology in 2020 discovered that subjects who took a single dose of a standardized CBD formulation had measurable quantities of CBD in their urine for four to five days following ingestion (1). Let’s take a closer look at CBD’s pharmacological aspect first. 

How long does CBD oil stay in your urine or body? 

To answer this question, we must look at the half-life of CBD. According to literature, the half-life is the period it takes for a drug’s active ingredient to decrease by half in our body. This is dependent on how the body breaks down and eliminates the substance. It could last a few hours, a few days, or even a few weeks. A drug’s half-life is constant regardless of the dosage you’re taking or how long you’ve been using it. CBD’s half-life in the body can be anything from one hour and five days (2). The half-life of CBD sprays and drops ranges from 1.4 to 10.9 hours. While CBD normally has a half-life of 31 hours when smoked, chronic oral use of CBD products can extend its half-life to 2 to 5 days (3). CBD has a different half-life for different people. 

This post will go over several factors that may be significant to understand how long it may take for CBD to eliminate from the body. Let’s go!

  1. Methods of consumption: There are various CBD administration methods. Your chosen method will have an impact on how long the effects take to kick off and how long they last in your body. Some of the administration routes are oral ingestion, sublingual intake, inhalation, and topical use. What happens to our bodies when we consume CBD orally? CBD enters the bloodstream after passing via the liver and digestive system. It’s important to realize that taking CBD orally may not have immediate results as it may take up to an hour to start working. If taken on an empty stomach, it tends to metabolize as well as get eliminated quicker than when ingested with meals. When taken sublingually CBD can enter the bloodstream without passing via the stomach. It can act faster, and the molecules can cause greater effects. It passes through the liver, where it gets eliminated as foreign substances. The body can finally totally rid itself of the filtered molecules through feces and urine. Vaping (inhaling) CBD causes it to enter your lungs quickly, take effect, and leave your body swiftly. The effects could last anywhere between forty minutes and two hours. The procedure by which CBD is eventually eliminated from the body through feces and urine is the same as in the two prior approaches. Lastly, using CBD cosmetics/topicals will not show up on blood, saliva, or urine drug testing since, products such as creams, masks, or serums cannot reach the bloodstream. As an alternative, the substances engage the skin’s surface-based cannabinoid receptors. Additionally, topicals such as creams, lotions, gels, serums, etc. may take a little longer than usual to enter and exit the body.
  2. CBD usage/dosage: The amount of CBD consumed impacts how long CBD remains in the body. Your CBD will tend to stay active for longer if you utilize more of it. Larger doses of CBD also have a longer-lasting impact on the endocannabinoid system in your body, which results in effects that stay longer (3). When used frequently, CBD accumulates in your body over time. For this reason, you should test it out for at least a week to discover if it is effective for you.
  3. Metabolism and Age factor: Every person has a particular sort of metabolism, whether it be a quick or a sluggish one. The rate at which CBD is eliminated from the body depends on this similar metabolism. Additionally, compared to when consumed on an empty stomach, CBD tends to stay in the body a little longer when taken with food. An active way of living can also improve metabolic functions and have an impact on the effects of CBD in our system. On the other hand, as we become older, our bodies absorb CBD differently and eliminate it differently. 

Finally, there is no definitive answer to the question of how long CBD remains in the body’s systems. We all have unique bodies that react differently according to a variety of other circumstances. Research shows that the pharmacokinetics of CBD are influenced by the mode of delivery. CBD is extremely lipophilic and can spread quickly in the brain, fat tissue, and other organs. But, if CBD is administered via capsules, its limited water solubility causes varied pharmacokinetics. There is less variability when CBD is delivered orally, mucosally, or sublingually using sprays or lozenges. If you use CBD regularly and heavily, it can show up on a drug test days later but unfortunately, they do not typically test for CBD in a blood test and are rather focused on checking for THC. A single dose of CBD may appear on a drug test for about 3 days. CBD may potentially be detected in your urine for more than three days. Using an unpure or non-isolate product is likely to result in this. From 24 hours to several weeks, CBD might remain in your system as per studies. It’s best to always use a pure reputable CBD brand to ensure its ingredient and quality is trustworthy.

Will CBD and CBG show up on a drug test? Find out in our informative blog post. Learn about drug testing and how to use CBD safely. #CBD #DrugTest #CBG

This article was written by Dr. Peace Lily Scientific Communications Intern, Jahnabi Saikia, and edited by Dr. Najifa Choudhury, PharmD.


  1. Spindle TR, Cone EJ, Kuntz D, et al. Urinary Pharmacokinetic Profile of Cannabinoids Following Administration of Vaporized and Oral Cannabidiol and Vaporized CBD-Dominant Cannabis. J Anal Toxicol. 2020;44(2):109-125. doi:10.1093/jat/bkz080
  2. Meissner H, Cascella M. Cannabidiol (CBD) [Updated 2022 Nov 21]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK556048/
  3. Millar SA, Stone NL, Yates AS, O’Sullivan SE. A Systematic Review on the Pharmacokinetics of Cannabidiol in Humans. Front Pharmacol. 2018;9:1365. Published 2018 Nov 26. doi:10.3389/fphar.2018.01365


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