How Long Can CBD Stay In The Body?

How Long Can CBD Stay In The Body?

May 29, 2019


Most people are concerned with how long CBD stays in their system.

Some may need to take drug tests at work, not knowing if the test concerns CBD as well as THC. Even if it is rare, it may not be worth taking the risk.

We will describe how long CBD stays in your system.


How do you feel taking CBD ?

 Taking CBD for the first time may scare you as how strong it can affect you.

Even if CBD comes from cannabis, it is definitely non-intoxicating. The psychotropic effect comes from THC, the one most drug tests are looking for, not CBD. 


How does CBD make you feel? Honestly, you may not even feel a thing. Even though CBD has been proven to be a powerful anti-inflammatory, analgesic (pain reliever) and antidepressant, its effect is hardly perceptible.

 Nevertheless, some feel a warmness in their body, some sense a relief, and some may feel the mind slow down, peaceful but always alert.

The feeling of taking CBD depends also on the dose and the method of consumption.

How long does CBD take to take effect?

New CBD users wonder how long it takes to work. Well, as everyone is different, you need to make a step by step schedule of the doses and ways of taking it to find out what works best for you.

Let's talk about the different means of taking CBD and how long it takes effect.

  • Sublingually

It is the most effective way of taking CBD oil. A few drops of oil under the tongue for about a minute will be absorbed through the tissue and directly into the bloodstream. Then, it will be pumped throughout the body and start taking effect, generally about 5 to 20 minutes for most people.

  • Vaporizing (smoking)
When vaporized, CBD is absorbed by the lungs and gets straight into the bloodstream. It is the most efficient and quickest way, just about a couple of minutes.
  •  Topically

CBD balms or salves are great for any localized pains, but it takes more time. Applied on the skin, the pores absorb it, so it generally takes effect about an hour or more.

  • Eaten

CBD edibles are widely used (in the form of chocolate, healthy smoothies, candies...). The CBD goes through the digestive system ans absorbs through the lining of the gut. It then takes from 20 minutes to an hour to take effect. Taking CBD edibles on an empty stomach could accelerate it.

Of course, the timing for CBD to take effect depends on many variables (height, weight, age, health condition, diet and activity level).

How long does the effect of CBD last?

Let's see how long the effects last. Again, it depends on many factors, mainly the dose and the mean of consumption.

The bigger the dose, the longer it should last. However, as everyone is different, there is no accurate  way of knowing how long it should last.

 The only thing to do is to try a dose and feel when the effect stops. Generally a dose of 2 to 5mg of CBD is good to start, increasing it until it feels right. 

Although not exact for everyone, a small dose of 5 to 10 mg should last between 1 to 3 hours. A larger dose, 10 to 20 mg, should last 3 to 5 hours.

 We have to insist that the best way to find out how long the effect lasts is through self experimentation, which basically will lead to find the dose wanted.

How long does CBD stay in the system?

With CBD exploding onto the scene so dramatically in recent years, it’s understandable that many people want to know how long it stays in your system. However, it’s a difficult question to answer. As we keep saying, everyone’s bodies are different and there is no one-size-fits-all answer. Additionally, there just hasn’t been that much research done on the subject. 

Any CBD user would like to know how long CBD stays in the system. Unfortunately, as we kept expressing, everyone is different and there is no real answer to that. On top of that, there has not been enough research on the subject.

There is this study from 1991, which followed 14 patients with Huntington's disease who took high dosed of CBD (700mg a day) for 6 weeks. The study found out that after one week without CBD, it was nearly completely undetectable.

There are no studies available to see if CBD is detectable in the urine, saliva or hair.Nonetheless, for saliva, it should be a maximum of one day. Based on studies on THC detection, even a large dose (10 to 100 mg) should take a couple of weeks maximum.

For the hair, it is another story. Hair can keep record for an entire life. Even if you cut your head hair, the body hair will keep the information. As most hair tests will analyze the last inch and a half, it represents about 90 days of information.

Will a drug test track CBD?

As it is a concern for CBD first timers, drug tests generally look for signs of THC, the psychotropic ingredient in cannabis, and not CBD.

Even if there are small amounts of THC in CBD oils, their concentration are so small that they can't cause to be detected.

This is why it is important to choose the right product and any reputable CBD oil will not cause any positive result in a drug screening.


How long does THC stay in the system?

 Cannabis is still illegal in most parts of the world even if numerous scientific research have proven the many health benefits it offers. THC offers as much therapeutic value as CBD.

Research has proven THC to be a great pain reliever, a good treatment for nausea and a great protection of the brain when injured.

Unfortunately, because of the repressive laws and close minded politicians, a THC user should really be careful and not get caught with weed on them or in them, knowing how long THC stays in the body. 

Again, everyone is different and levels of THC can be different from a person to another. There are many ways of testing THC; the most common being urine samples, but blood, saliva and hair can also be tested sor signs of THC.

Let's overview how long THC can be detected in different  tests, depending of course on how often it is consumed.


  • Blood -  3 to 30 days
  • Urine -  2 to 100 days
  • Saliva - 12 and 24 hours
  • Hair - Most hair tests will only look at the last 90 days.

How is cannabis tested?

Most drug screenings only look for THC or metabolites of THC, not CBD. THC is the cannabinoid responsible for the intoxication effects of cannabis.

The most common tests are through urine, blood, saliva, and hair, but others can include breath, sweat, and fingernails, which are very rare.

For most tests, you need to give a sample, which is analyzed using an immunoassay that can detect THC (or its metabolite THC-COOH). If the result shows any of these, more accurate tests will follow to confirm the original one.


CBD users want to know how long CBD stays in the system. Even if most drug tests only look for THC, some look for CBD as well. Failing a drug test can have severe consequences; it is generally not worth taking the risk if you face a drug test.

On the other hand, you can almost be certain that CBD will be undetectable in your blood after about a week, two weeks for urine tests, and a few hours for saliva tests.

However, you’ll be pleased to know that CBD seems to be undetectable in your blood after about a week. From this, we can make an educated guess that it will also not be present for much longer than a couple of weeks at most in your urine, while your saliva will probably be free of CBD after a few hours.

If you don't want to risk a positive drug test, make sure to buy CBD from a reliable seller. Check our products