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How Long Does CBD Oil Stay In Your System: Duration That CBD Stays In Human Body

We live in a time, where cannabis is legalized in a large number of states. But there are still valid drug tests that can detect CBD even days after its consumption. These tests are mainly a precautionary measure in states where cannabis is not legal. The tests performed in current times are more advanced then the tests performed earlier.

It can be quite confusing to understand the difference between CBD and THC as both of them come from the same plant. Well, the main difference between them is psychoactivity. THC is psychoactive and can control a person’s state of mind while CBD is not.

However, the benefits provided by both of them are common. They can provide you with aid in conditions like pain, seizures, anxiety, nausea as well as other symptoms that are related to common medical conditions. 

In this article, we are going to discuss How Long Does CBD Oil Stay In Your System in detail.

What is CBD?

CBD is a type of chemical compound that is extracted from the plant Cannabis sativa for use in medicinal purpose. This naturally occurring substance can be helpful to produce oils as well as edibles and provides relaxation of the body. Although both CBD and Marijuana are extracted from the same plant, CBD is not psychoactive. 

Types of CBD

CBD comes from cannabis, which is a family of plants. Cannabis plants contain various chemical compounds. Some of them are listed below: 

  • cannabinoids
  • terpenes
  • flavonoids

CBD in a Drug Test

If you have a workplace, where they screen for drug testings frequently or have strict rules regarding its consumption, this may be a cause of concern. 

CBD is a natural and organic product that is pretty well tolerated by individuals of different age group.

However, still, there are chances of false-positive results on consumption. No matter how pure or efficient quality CBD oil you are using, it still incorporates a trace amount of THC within it. Thus, you can still show positive results, even if you have not consumed THC. 

How Long Does CBD Stay In Your System: The Duration

Although there needs to be various research conducted to conclude it, there are still certain studies that show CBD can stay in a human body system for a week, after which it becomes undetectable. 

This result was after the discontinuation of the drug. When 700 mg CBD was administered to patients suffering from Huntington’s Disease for 6 weeks, it was noted that it is a pretty strong dosage. It was also noted that the half-life of CBD is 2-5 days.

Factors Responsible for CBD Retention in Human Body 

Retention of CBD in the human body can be affected by various factors. Sometimes, even genetics and personal preference can play the main role in eliminating cannabis from your system.  It is very likely that the factors listed below can affect the duration of CBD retention in the human body. 

  • Age
  • Gender
  • Bodyweight
  • Metabolism
  • Dosage
  • Frequency of use

Thus, it does not mean that CBD will provide you with the same benefits as it did for your neighbour. Its absorption differs from person to person.

How Long Does CBD Stay in Your Urine?

The duration that CBD can be found in urine needs sufficient research and study.

However, some of the researches showed that THC can be present in the urine for about 30 days after its consumption. As the test screenings for CBD are relatively lower, it is very unlikely that you will test positive for this drug test.

More researches and studies need to be conducted to rule out its detection in the urine.

How Long Does CBD Stay in Your Bloodstream?

When CBD enters the human body it directly enters the bloodstream and then it is pumped throughout the body. 

This whole process takes about 5-15 minutes to complete and the edible and capsule form of it takes about 30 minutes or longer.

However, there are various studies and research that shows CBD can take up to a week to leave the human body.  

How Much THC Should be Present to Register on a Drug Test?

THC can be detected in various ways. You can check for it in urine, blood, hair as well as saliva. Here is how you can detect the amount THC in different parts of your body.


Testing of urine for CBD is quite common in the workplace. However, the presence of THC-COOH must be in a concentration of 50 nanograms per millilitre to show positive results.

Studies show that THC metabolites are detectable in urine for about 3-15 days after use. Also, it is important to keep it in mind that using CBD frequently can increase the duration it stays within the human body to more than 30 days. 


To detect drugs within the body, a blood test is more common than a urine test. Thus, these are not for the workplace. THC is pretty quickly eliminated from the bloodstream. 

However, researches show that it is detectable in the blood plasma for about five hours although THC metabolites are in the system for seven days. 

Blood tests are most useful for immediate impairment. If you consumed CBD formerly and driving, blood tests are an easy way to detect its presence in your system. 


Saliva testing for CBD is not very common and there is no such cut off-limits test the level of THC in saliva.

However, studies suggest a cut off value of 4 ng/mL. Moreover, it is detectable in fluids for 72 hours and may last much longer on heavy use. 


Just like saliva, hair testing for CBD is also not very common. However, private industry cut-offs contain around 1 pg/mg of THC COOH within it. THC metabolites can be detected in your hair for up to 90 days

Can CBD Convert Into THC Within Your Body? 

You might be wondering whether CBD can convert to THC inside your body. The answer to this question is Yes.

CBD can turn into THC in your body in an acidic environment. In a 2016 in-vitro study, it was seen that the stomach fluids may convert CBD into THC.

However, according to research in 2017, it was noted that none of the consumers faced the same side effect of CBD as that of THC.

Additional Reasons That Might Show a Positive Result for CBD 

Sometimes the reason for positive results for THC may be related to some other issues. Thus there are various potential reasons which can lead to a positive drug result for THC. Here are some of them listed below:


There is a chance of cross-contamination during the CBD manufacturing process, and even in instances where the THC are only in trace amounts.

This occurs for manufacturers who are preparing products that incorporate only CBD, THC or combination of both within it. 

However, it may also occur in places like stores and at home. If you find CBD oil around any other substance that may contain THC, there are high chances of cross-contamination.

Reclaimed Exhibition Of THC

Although it is quite unlikely that you may test positive for THC on passive smoking, there are still chances that it may show a positive result on passive smoking THC. Thus, it is better to stay in a ventilated area if you find someone consuming THC within a room. 

Side effects of CBD

Apart from consuming CBD for various ailments, it also triggers certain side effects on using it Although these side effects are pretty mild, it can still cause complications. Here are some of them listed below:

  • Anxiety disorder.
  • Changes in appetite.
  • Mood swings
  • Diarrhoea and upset stomach
  • Lightheadedness and Dizziness 
  • Drowsiness.
  • Increase thirst and Dry mouth.
  • Nausea

Drug to Drug Interactions

If you are on certain drugs, it is important to make sure not to consume CBD with it. This is because it may interact with it and cause complications. Here is a list of drugs that may interact with CBD:

  • Clobazam
  • Valproic acid
  • Eslicarbazepine
  • Steroids
  • HMG CoA reductase inhibitors
  • Calcium channel blockers
  • Antihistamines
  • Prokinetics
  • HIV antivirals
  • Immune modulators
  • Benzodiazepines
  • Antiarrhythmics
  • Antibiotics
  • Anaesthetics
  • Antipsychotics
  • Antidepressants
  • Anti-epileptics
  • Beta-blockers
  • PPIs
  • NSAIDs
  • Angiotensin II blockers
  • Oral hypoglycemic agents
  • Sulfonylureas

Also, it is advised not to consume CBD if you are allergic to it or suffer from any serious ailment. Apart from that, it is also better to check, whether it triggers any allergic symptoms.  


Summing up, it is noted that the duration that CBD stays within your system depends on various factors.

It may be related to age, sex as well as the amount and frequency of CBD usage in an individual. 

Apart from that CBD consumption can trigger certain side effects as well as drug interactions

Thus, if you are using CBD for any medicinal purpose it is important to discuss its usage with a health care professional who is recognized in this sector.

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