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Will Smoking CBD Flower Show On A Drug Test?

Will Smoking CBD Flower Show On A Drug Test
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A lot of worried people are asking “will smoking CBD flower show on a drug test”? More and more people are turning to CBD because they want a safe, herbal solution to their physical or mental discomforts. There are at least nine medical conditions where CBD may be, or has already proven to be, beneficial. These are epilepsy, pain, arthritis, anxiety, depression, sleep disorders, acne, Parkinson’s disease, nausea, and vomiting.

One of the finest ways to enjoy the benefits of CBD is smoking or vaping CBD hemp flower. However, many people who turn to CBD flowers for the first time wonder if they can fail a drug test after smoking.

Since hemp-derived CBD products have become legal in the U.S., the number of people trying CBD flowers grows by the day. But, what effect does this have on drug testing? 

This article will answer all the questions related to CBD hemp flowers and drug screening. Let’s get started!

What is CBD Flower?

Before diving into the details of drug screenings, it’s good to figure out what CBD hemp flower is. CBD hemp flower is one of the four key components of the hemp plant. On a fully mature hemp plant, you’ll find stock, leaves, flowers, and seeds. Compared to the other three components, the flower contains the highest percentage of CBD. 

You can buy CBD hemp flowers to smoke or make your own CBD oil or butter. Moreover, you may use the oil or butter in edible recipes and skincare products, add it to tea or ingest it directly. It’s up to you!

Will CBD Flower Show On A Drug Test

Since CBD is non-intoxicating, labs that perform drug screenings don’t actually test for it. So, the short answer is “no”. You can’t fail a drug test after smoking CBD flower. 

However, some CBD products contain THC (tetrahydrocannabinol). The ones that contain up to 0.3% THC are called “full-spectrum” CBD products, while the ones with undetectable levels of THC are “broad-spectrum” CBD products or “isolates.” Though CBD flower must contain less than 0.3% THC on a dry weight basis, that still might be enough to end up with a positive result for THC in certain circumstances, especially if you are a heavy hemp smoker. 

After continuous smoking, those dozens of milligrams may accumulate enough to make it seem like you’ve been using THC on a drug test, and you may get a positive drug test result. What is more, the test may even confuse CBD for THC, resulting in an inaccurate reading. 

Also, mind that there might be a concern over whether the label on your product is accurate. It could say 0% THC, but without evidence, such as a Certificate of Analysis (COA) from a third-party lab, you won’t know for certain.

CBD Drug Testing

Is CBD Tested for in a Ten Panel Drug Screen?

A 10-panel drug test is one of the most common tests used to detect traces of ten different types of substances that are frequently associated with drug abuse. It may involve secondary testing to confirm any positive results. The substances a 10-panel drug test detects are:

  • Opioids
  • Cocaine
  • THC & synthetic cannabinoids
  • PCP
  • Amphetamines
  • Barbiturates
  • Benzodiazepines
  • Quaaludes
  • Methadone
  • Propoxyphene

Fortunately, as you see, “CBD flower” is not included on the list. THC, though, is right there. As we’ve already discussed, smoking CBD flowers can cause a false positive for THC. Be extremely careful with what you buy and where you do it.

Will CBD Show Up In A Blood Test?

Blood testing isn’t common for finding CBD or THC. Typically, such tests involve saliva, urine, or hair samples. To discover CBD in your bloodstream, an individual would likely have to request a specialized blood test for that purpose.

How Long is CBD Detectable in Urine?

As we have already clarified, drug tests aim to detect THC, not CBD. CBD, CBG, and CBN aren’t actually what they’re looking for. 

However, if your hemp product also has THC in it, that can negatively affect your drug test results. So be sensible while choosing a CBD product, especially when you are going to take the drug test.

Some CBD, CBG, or CBN products can still be problematic when it comes to drug testing, as they may contain amounts of THC higher than the legal amount of 0.3%. In this case, THC metabolites can remain in your urine and will show up on a drug test for up to 30 days after the intake. If you only ingest a tiny amount, THC can leave your system in as little as three days. The truth is it really depends on the dose you took and the overall frequency of use.

How to Make Sure Your CBD Doesn’t Contain THC

Some CBD products may be much safer than others. But unfortunately, it’s not a piece of cake for the consumer to check out how much THC is in a particular CBD product. Still, If you’re going to purchase CBD, take your time to evaluate the products available. We’ll try to help you.

To start with, thoroughly read the product information. It’s important to find out whether the product comes from hemp or marijuana and whether the CBD is full-spectrum, broad-spectrum, or isolate. As we’ve already explained, full-spectrum CBD products derived from hemp, together with CBD products that come from marijuana, are more likely to contain THC. Remember this.

Secondly, it’s better to choose products that list the amount of CBD per dose. It may differ depending on whether the product is a tincture, an oil, an edible, etc. More concentrated CBD products are generally more expensive, even though they may appear to be the same size or smaller than other products.

Finally, look for any available lab test results associated with a given manufacturer. It will be the best option. You can also check out where hemp-derived CBD products come from, as hemp quality varies by state. For example, more reputable states, such as Colorado and Oregon, have long standing hemp industries and rigorous testing policies. If information about hemp isn’t available in the product description, contact the seller.


To sum up, since CBD is non-intoxicating, labs that perform drug screenings don’t actually test for it. Theoretically, you can’t get a failed drug test after smoking a CBD flower. 

Nevertheless, there is always a small chance that CBD could cause false-positive test results for THC on a sensitive drug test. Why does it happen? Products containing CBD may be contaminated with THC or have improper labeling. Although manufacturers may claim that they have eliminated THC from their products, this may not be the case. Moreover, other drugs may also interfere with urine drug test results