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Most CBD products do not have a high enough THC concentration to be worried about failing a drug test.

However, few products either intentionally or unintentionally contain higher-than-expected THC levels, which may trigger a positive drug test result.

Do you want to know how to flush CBD out of your system fast? Here are a few ways to pass a drug test. 

What Is CBD?

Cannabidiol (CBD) is found in the cannabis plant, alongside hundreds of other naturally occurring components such as cannabinoids, terpenes, and flavonoids.

CBD is the second most common cannabinoid, after tetrahydrocannabinol (THC), known for its intoxicating and psychoactive effects.

Both offer numerous health benefits, including anxiety, chronic pain, and inflammation relief.

The levels of cannabinoids and terpenoids in your weed depend on its genetics and growing environment.

Cannabis flowers have varying levels of THC, between 15 and 25% on average. Hemp-derived products, however, must legally contain under 0.3% THC, a trace amount that would not cause intoxication or lead to a positive drug test. 

Types of CBD Products

Understanding the different types of CBD products available can help you ensure you do not risk failing a drug test. Here are the main products to consider: 

Full-Spectrum CBD

Full-spectrum CBD contains all the compounds found in the plant, including terpenes, flavonoids, and other cannabinoids like THC.

These products usually come from the marijuana plant. Hemp-derived full-spectrum CBD, however, should only contain under 0.3% THC. Know the source (hemp or cannabis) of full-spectrum products.

Broad-Spectrum CBD

Broad-spectrum CBD is similar to full-spectrum CBD, but it does not contain THC. Broad-spectrum CBD includes the rest of the cannabinoids, terpenes, and flavonoids.

CBD Isolate

CBD isolate contains pure CBD in a powdery or crystallized form. It can also come as a CBD oil or tincture. CBD isolate usually comes from the hemp plant and are THC-free products.

How Long Does CBD Stay In Your System?

CBD usually stays in your system for about 2 to 5 days. However, the length of time CBD stays in your system depends on various factors, including your metabolism, how often you use it, how much you use it, and the THC concentration in the products you use.

CBD can remain in the system for several weeks in heavy users. 

Does CBD Show Up In a Drug Test?

Most drug tests detect THC metabolites, not CBD. However, certain CBD products may contain THC, such as full-spectrum products.

Some CBD products may be mislabeled or untested and have higher THC levels than expected.

Always look for lab-tested products. If there is enough THC in the product, it may appear on a drug test.

Ultimately, passing or failing a drug test depends on the quality and composition of your CBD product.

Generally, CBD products are not regulated by the Food and Drug Administration (FDA). The FDA has approved only one CBD-based medication (Epidiolex) for seizures.

Because of the lack of CBD regulation, consumers must research what is in their CBD, even in legal states. 

THC concentrations can vary depending on the source of the CBD extract and how it's processed. Hemp derived-CBD is less likely to contain THC than marijuana-derived CBD products.

How to Flush CBD Out of Your System

If you've purchased lab-tested products from a trusted supplier, you don't need to flush CBD out of your system. However, if your supplier did not provide a certificate of analysis (COA) or if your CBD product has some THC, there are a few ways to flush your body from cannabinoids.

Here's how to flush CBD out of your system: 

Stop Using CBD

As soon as you find out about your upcoming drug test, stop using CBD. Most products should not have high THC levels to fail a drug screening, but some products may be contaminated with THC, especially if they do not come with lab test results.

Drink Water

Drinking more water than you usually do can help flush out some traces of cannabinoids detected. Excessive water consumption only works if you expect to take a urine test, which is the most common test used. Other standard drug tests include hair, saliva, and blood tests.

As soon as you know you will be taking a drug test, increase your water intake and drink plenty of water on the day of the drug test. Be careful not to drink too much water on the day of the test since some labs will reject a sample if it’s too diluted.

According to the US National Academies of Sciences, Engineering, and Medicine, the correct daily fluid intake for average healthy adults in a temperate climate is 15.5 cups for men and 11.5 cups for women. About 20% of daily fluid intake comes from food and other drinks besides water.

Eat Fiber

A diet high in fiber can help remove cannabinoids from the body faster than without it. Fiber can help streamline bowel movements, allowing for quicker cannabinoid removal. All the while, reduce the consumption of fatty foods, which can offset your progress on detoxing.

High-fiber foods include whole grains, fruits, and vegetables.


Exercise is thought to speed up the cannabinoid detox process. THC is known to remain in your body’s fat cells after consumption.

How long it stays in there depends on your frequency of use. Exercising and sweating can help remove these THC metabolites from the body.

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Working out can also make you drink more water, allowing you to flush your system out faster.

Detox Products

If you're worried about failing a drug test, there is a wide range of detox solutions available in pills, drinks, and other forms.

These are used to cleanse the system by either masking or removing cannabinoids. Research the different options to determine when you have to take them, how long their effects last, and any other adverse effects before trying them. 

Final Thoughts on Flushing CBD Out of Your System

In most cases, cannabinoids leave the body on their own over time without the need to perform any extra detoxing.

Stopping CBD use and patiently waiting can help you naturally remove the potential THC metabolites in your system. If you give it enough time, you might not need to perform these detox methods.

Fred Hernandez - Cannabis industry expert writer
Fred Hernandez

Fred Hernandez is a highly accomplished and versatile writer, boasting an extensive background in the cannabis industry. With an in-depth understanding of various sectors including cultivators, processors, retailers, and brands, Fred's expertise spans across the entire cannabis landscape. As a prominent contributor to CTU, he consistently delivers insightful articles exploring the latest developments, news, and regulations shaping the cannabis industry. Whether it's delving into the intricacies of cannabis products, cannabis strain reviews, or providing comprehensive analyses of cannabis laws, or sharing expert insights on cannabis cultivation techniques, Fred's wealth of knowledge positions him as an invaluable writer and educator for all cannabis-related subjects.

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