How long does CBD stay in your System?

Anytime you are taking a new drug, medication, or supplement there are a lot of questions that come with it. A large portion of these come before someone even decides to try CBD. Once people decide to try CBD Oil we find that many want to know how long CBD will stay in your system, and how long do the effects last?

The length of time it takes for CBD to leave your system and the duration of the effects depends on multiple factors. These factors include your metabolism, the frequency of use, dosage and method of indigestion. For instance, it takes much longer for a pill or a gummy to leave your system than if you inhale CBD, but the effects also last much longer.

In this article we will cover each of these factors. In addition to that we will talk about the benefits and drawbacks of each consumption method as it pertains to the effects of CBD Oil.

Finally, we will examine how all of this will affect any drug test you may have to take after consuming CBD.

How long does CBD stay in your System?

In 1991 a study was published in Pharmacology Biochemistry and Behavior Journal where participants were given a high dose of CBD for six weeks. By the end of the first week without CBD the substance was no longer detectable in blood tests.

But, a more recent study in Pharmaceuticals found that CBD lasts in your bloodstream different amounts of time depending on how it was consumed.

So, the easy answer to the question “How Long Does CBD Oil Stay in Your System” is no longer than a week.

The more detailed answer is that it depends on multiple factors including body weight and body fat, metabolism, How much CBD was consumed, How the CBD was consumed, how frequently you took the oil, and even how much water you drank.

Weight and Body Fat

The first thing we should address is that CBD, like all cannabinoids, are fat soluble, which means it will temporarily be absorbed by the fat cells in your body. This means that the more CBD you’ve taken, the more will be in ‘storage’ and the longer it will remain in your system.

This also points to a person with a higher body fat % possibly being able to “store” more CBD, which again would take longer than someone smaller for CBD to completely leave their system.


Due to the fact that you can store CBD in your body, your metabolism plays a big role in how fast CBD will pass through your body.

Things like exercise, proper sleep, and taking CBD Oil on an empty stomach can all increase the rate at which it will pass through the body since they all have a significant effect on your metabolism.


The fact that CBD is stored in your body also means that the higher the dosages of CBD Oil you are taking the more that will be stored in your body. Thus taking longer to completely leave your system.

Frequency of Use

This goes hand in hand with dosage. If you are taking a super small dosage, but you are taking it every hour (smoking or inhaling CBD), the substance will build up in your system in the same way that it would if you were taking large doses every 6-8 hours.

Only a few studies on this topic have been complete, but we’ll run those down for you quickly too.

How long do the Effects of CBD Oil Last?

The first thing that we want to address here is that there is no high associated with the consumption of CBD. People often worry about taking CBD because it’s associated with cannabis, and smoking cannabis makes you high.

That high comes from THC, a different cannabiniod found in cannabis. CBD has many of the same benefits as THC, but doesn’t have the psychoactive effects! This makes the effects of CBD much more subtle, and sometimes harder to notice.

So, on to how long CBD lasts. This depends on two factors, dosage and consumption method. We already talked about dosage so in this section we’ll focus on delivery method.


The first consumption method we’ll look at is vaping or smoking. This is the fastest way to introduce CBD to your body. The CBD is absorbed directly into your bloodstream through the lungs. This bypasses any digestion that would otherwise slow down the effects.

This also happens to be the method that lasts the least amount of time. Most people will need to vape often to keep the effects going. That being said, it is a popular option for those in pain since peak concentrations happen as quickly as 3 minutes after inhalation.

In a study published in 2007 it was found that CBD will last up to 72 hours in your system after being smoked.


Up next is actual CBD Oil. By dropping a few drops of oil under the tongue you expose the hyper sensitive membranes there to the product and get a fast, long lasting method of relief. Most users report 4-6 hours of relief this way.

This method is slower than inhalation, but much quicker than our next method, ingestion.


Pills and Edibles are a very popular method for the medical community because they can control the dosage exactly.

While this can take up to an hour to start to feel depending on your metabolism, the effects tend to last 6-8 hours. Before taking pills or edibles think of things like making sure you have a relatively empty stomach, so the CBD digestion is not slowed down with normal food processing.

This may be the least effective way of consuming CBD Oil though, because only about 5% of the consumed CBD makes it to the bloodstream after the digestive process.


The last option is creams and lotions. This is the hardest method to estimate because the dosing is so varied. The amount of CBD found in infused lotions, creams, salves ranges greatly. Topical applications are normally for things like muscle soreness, aches, and pain, which also vary greatly.

That being said, most topical applications will start working in around 10 minutes and can peak closer to 90 minutes, giving the user long lasting, targeted relief.

Will CBD Oil show up on a Drug Test?

The short answer is no. CBD Oil will not show up on, or make you fail a drug test. Period. For a full artilce on the topic you can see the piece we wrote on CBD Oil and Drug Tests. We’ll still summarize it below!

Quest Diagnostics, the largest drug testing company in the United States, doesn’t even have a test designed for CBD.

But, that doesn’t mean you’re completely in the clear. They do test for THC, which we mentioned earlier is another major component of the cannabis plant.

Most CBD Oil is made from a specific stain of cannabis called hemp, and hemp has a legal maximum THC content of .03%. So if you are using hemp the amount of CBD oil you’d have to consume to show up on a drug test is astronomical.

There are CBD products, especially in the medical community, that have higher levels of THC. So when you are shopping around you’ll want to make sure that you are not consuming this type of product.

There is also a growing number of low-quality, poorly manufactured, and even fake CBD products on the market. Some businesses have seen the money to be made in a new, unregulated market and get greedy, leaving their customers to pay the price.

Even using a quality hemp derived CBD product there is a very minor chance you’ll consume enough THC for it to show up on a drug test. If failing a drug test is simply not a chance you can take we recommend sticking with CBD Isolate products.

Not only are these products normally cheaper, they are highly refined to remove all of the other compounds from the cannabis plant, leaving only CBD.