How Long Does Marijuana Stay in Urine?

Updated: October 2020

How long does marijuana stay in your urine? What about saliva and hair? And how do you pass a marijuana drug test? Here’s a look at what the science says.

When conducting a marijuana drug test, companies often use a urine test. It’s been proven to be quite accurate and simple enough to administer. So here’s what you need to know:

 

Factors Determining Cannabis in Urine

There are several factors that determine how long weed stays in the body and many personal attributes like weight, genes, and personal habits can influence the time THC takes to no longer be identifiable in the urine.

  • THC percentage of the cannabis being consumed
  • The BMI of the person consuming the marijuana
  • The rate of consumption (how often they smoke)
  • How fast the consumer’s metabolism works
  • How much liquid an individual consumes daily

 

Marijuana in Urine

With this in mind; here’s what the research shows in regards to how long marijuana stays in your urine:

  • If you consume marijuana once, it should be out of your system in 5 to 13 days.
  • Cannabis will stay in the system for 10 – 45 days for those who consume it a couple or a few times a week.
  • For heavy consumers (5 or more times a week) it can stay in the system for up to 90 days.

Verywell.com created this image to illustrate the detection times of marijuana in the body. As you can see hair and urine are the best methods for detection but urine test are a lot more rapid and low cost so they are most common used.

Cannabis duration in body

 

A urine test is typically conducted at a health care provider’s office or where a health professional can be present. The individual is asked to urinate in a cup. The test leverages reaction strips that detect the presence of THC or related chemicals (called metabolites) in the urine.

The metabolites are stored in the fat cells of the body and are released slowly over time. If more than 50 nanograms per milliliter (ng/mL) of THC is present in the urine, the test will identify it.  The test is quite accurate and results are quick.

urine drug test

 

Saliva and Hair Tests:

Saliva Marijuana TestTwo other popular methods are saliva tests and hair tests. Saliva tests are the least invasive; if you’re a daily smoker, studies have shown that in most instances it should be completely out of the system after 72 hours. If you smoked cannabis only once, it will likely be out of your system in 24-48 hours.

 

On the other hand, Cannabis can be found in the hair for up to a year after last consumption. Many companies have stopped using hair drug tests, however. Part of this is due to research released which found that hair tests can have false-positives for marijuana “because of transfer through cannabis consumers, via their hands, their sebum/sweat, or cannabis smoke.”

 

How do I Pass a Marijuana Drug Test?

The safest and most effective way to pass a urine drug test for marijuana is to abstain from consuming it; if you’re a heavy smoker, this may mean abstaining for two months or more.

Another option is to look for Marijuana detox products (try doing a simple Google search). You’ll find a plethora of options for cleaning your system and clearing your urine; we highly recommend reading reviews first, however, as some work much better than others. We did find the following products that may work for you:

Product

Benefits

Rating

Buy

L
  • All natural

  • Made in USA

  • Cleanse in 5 days

4/5

  • All natural

  • Made in USA

  • Cleanse in 5 days

4/5

  • All natural

  • Vegan

  • Cleanse gut

4.5/5

Additionally, you can dilute the marijuana in your urine by drinking massive amounts of liquid. This may work to shorten the amount of time the THC is in your system. However, it’s not magic and won’t allow you to pass a test if you’ve smoked recently.

If taking a marijuana saliva test, abstaining for a few days should be enough for even heavy users. If you can only abstain for a day or two prior to the test; suck on the sourest candy you can find for a couple hours beforehand.

If taking a marijuana hair test, there really isn’t much you can do, unfortunately.

 

THC-COOH:

THC-COOH is the main secondary metabolite of tetrahydrocannabinol (THC) which is formed in the body after cannabis is consumed. Most drug tests don’t test for THC; they test for THC-COOH.

The reason this is an issue is because THC-COOH can stay in the body for longer than THC.

We have created another articles specifically to share more information on THC-COOH.

 

What about CBD Consumption?

Standard drug testing tests for THC metabolites, not CBD. This means that consuming CBD will not make you fail a drug test; that is so long as it has had all of its THC removed; or if it’s hemp derived (meaning it will already have virtually no THC).

 

Can I know ahead of time if I’ll pass a drug test?

There are many home test kits that one can take to find out if you’ll pass a drug test. These are over the counter and can be purchased online. Here are a few we suggest:

Product

Type

Rating

Link

Urine Test

5/5

Urine Test

4.5/5

Hair Test

4/5

Urine Test

4.5/5

Final Thoughts

Drug tests have come a long way and have become quite reliable over the past decade. If you are required to pass a cannabis related drug test for work, military service, or legal reasons, it’s important to understand how long THC and other metabolites stay in the body.

And even though there are strong detox options on the market, at the end of the day, only time will allow all traces of THC to leave the body. So be planful.

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Author: anthony1230