How Long Does Marijuana Last In Saliva


Are you worried about failing a drug test if you use marijuana? Well, marijuana can make you fail a drug test. The reason is that weed contains a large concentration of THC, which drug tests are specifically designed to detect. THC is what causes weed users to get high. It’s a class of psychoactive cannabinoids that unleash intoxicating effects in the body. 

To pass a drug test, you must know the time taken by marijuana to leave the body. This will help you to make the necessary preparations to pass the drug test scheduled in the coming weeks. 

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How Long Does Marijuana Take To Kick In?

The time taken by weed to kick in depends on how you consume it. Smoking or vaping THC will make you feel the effects within 10 to 15 minutes. On the contrary, ingesting marijuana takes around 1 hour or more to kick in. 

How Long Does Marijuana Last In Your Saliva?

Marijuana lasts only for a short duration in your saliva. The drug tests can pick up THC metabolites in your saliva for up to 72 hours. This duration can vary depending on how much cannabis you consume daily. 

Remember, THC metabolites can only occur in your body’s saliva if you ingest or smoke cannabis. 

How Long Can Other Drug Testing Methods Detect Marijuana In Your System?

The detection time for all drug testing methods depends on your cannabis usage. The more weed you use, the longer THC takes to flush out of your body, increasing the chances for a drug test to detect it.

All drug tests have a different time window for detecting cannabis in your system. These are discussed below:

  1. Urine Testing

The duration of detecting weed through urine testing depends on the frequency of its consumption. If you consume cannabis rarely, its metabolites may last up to 3 days or longer in your urine. In people who use weed moderately (3 - 5 times per week), their urine may show THC metabolites for up to a week after consuming it. 

People who consume weed frequently can be divided into those who use cannabis once daily and those who use it frequently.  If you use weed once daily, then your urine tests may be able to trace THC in your urine for up to 15 days after use. On the other hand, those who consume weed more than once every day may have THC in their urine for up to 30 days or longer. 

  1. Hair Follicle Testing

When you use weed, THC travels through small blood vessels and enters your hair follicles. Through hair follicle testing, THC can be detected in your hair for up to 3 months.  

  1. Blood Tests

After consuming cannabis, THC occurs only for a couple of hours, i.e, 2 to 12 hours in the bloodstream. This is the case only if you consume cannabis occasionally or moderately. Otherwise, the detection time for THC stretches to 30 days if you use weed excessively. 

How Long Does Marijuana Take To Metabolize?

When you inhale or ingest a cannabis product, THC enters your bloodstream. A fraction of this THC gets stored in fatty tissues or organs. The remaining THC travels to your liver and gets broken down into metabolites.

A fun fact is that THC can form over 100 metabolites. Amongst them, the most common ones are 11-OH-THC (11-hydroxy-delta-9-tetrahydrocannabinol) and THCCOOH (11-nor-9-carboxy-delta-9-tetrahydrocannabinol). These metabolites stay in your body for longer than THC. 

Once THC gets converted to metabolites, the body begins to remove them in the form of urine or stool. How long your body takes to excrete the THC metabolites again depends on how frequently you use weed. If you consume more weed, your body must convert lots of THC into metabolites. This leads to a higher concentration of THC metabolites flowing around your system. As a result, your body will take longer to expel them. 

What Factors Affect How Long Marijuana Stays In Your System?

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A couple of factors affect how long cannabis stays in your body. These are:

  • Body Mass Index

THC is a compound that likes to bind with fat molecules. This can be problematic for a person with a high body mass index as it means they have more fat. More fat means your body can store more THC. Hence, this increases the time your body takes to expel this compound.

  • Potency And Consumption Method

If you’re using a weed strain with higher levels of THC, its metabolites will occur in your body for longer.  Moreover, ingesting marijuana causes THC metabolites to stay in the blood longer.

READ: Is It Legal To Ship Weed?

5 Frequently Asked Questions

  1. Is Marijuana Legal In The US?

At the federal level, marijuana is illegal and categorized as a Schedule I drug by the DEA. However, at the state level, the legal status of marijuana differs. If you reside in a state that permits recreational or medical marijuana use, then you can use marijuana. 

  1. How Long Does A Marijuana High Last?

The intoxicating effects of marijuana may last between 2 to 12 hours. 

  1. What Is The Onset Time Of Marijuana Gummies?

Marijuana gummies have an onset duration of around an hour or longer. 

  1. How Much Does A Gram Of Marijuana Shatter Cost?

1 gram of marijuana shatter can cost as low as $50.00 to as high as $150.00. The price varies depending on how pure and potent the shatter is.

  1. What Is The Shelf Life Of Marijuana Topicals?

Marijuana topicals can last up to 2 years if stored in their original container and tightly sealed. 

Where to find the best Cannabis products?

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Takeaway - How Long Does Marijuana Last In Saliva

The reason why marijuana users are prone to failing a drug test is because of THC, a major psychoactive component that gives marijuana users a high. How long a drug test detects THC in your body depends on your body’s biological factors and how often you consume weed. 

To pass a drug test, you should avoid consuming any form of weed if you have a drug test scheduled in the coming weeks.