Cannabis Science

How to Detox From Weed

how to detox from weed

Detoxification, in this case, refers to removing traces of weed from your body. For some, detox means halting the use of the drug for a particular period of time to allow it to dissipate from the body. However, for others, they may opt for a detox kit. People opt for detoxes in general for many reasons. For some, they may want a detox because they want to pass a drug test. For others, they may feel dependent and want to ween themselves off of it. The internet provides many options for detox but do they work? Let’s first look at how long marijuana stays in your body in the first place. 

How Long Does Marijuana Stay In Your Body

When you use marijuana, the body flushes out the various components like THC, over time. The liver is the main organ that breaks down weed and its many components. In about 5 days your body would have rid itself of most of the THC, around 80%-90% of it. However, depending on certain factors, such as how much weed you consume, your body fat, and your metabolism, your body may release the weed at a slower pace. In addition to that, even though 90% of the weed may be gone, it may still be detected depending on the type of test that was done. 

The table below indicates how long THC can be detected 

Test Detection Time 
UrineSingle-use users- up to 3 days
Moderate users (4 days a week) 5-7 days
Daily users- 10-15 days
Chronic heavy smokers- more than 30 days
BloodstreamA couple of days, up to a week
Hair90 days for heavy users
Salivaoccasional users- 1-3 days
chronic users- 1 to 29 days
Marijuana Test Detection Times (Source: Stoners Rotation)

Do Detox Kits Work?

There are many types of detox kit, according to Healthline, “these kits include capsules, chewable tablets, drinks, shampoos, and even mouthwashes to help you pass a saliva test.”

We discussed whether or not detox kits worked in How To Get Marijuana Out of Your System but just to reiterate, they don’t really work. 

Why Are Detox Kits a Bad Idea?

Detox tests, according to American Addiction Centers are really there to help you pass a drug test but they don’t remove THC from your body any quicker. Even if your aim is to pass a drug test, you’ll have to be careful because some of these detox kits are dangerous. According to Natural Medicines Comprehensive Database, some have ingredients such as Uva ursi can cause nausea, vomiting, and gastrointestinal discomfort; large amounts can be oxytocic. Oxytocic refers to the stimulation of the involuntary muscles of the uterus. 

In addition to the kits not working, they can cause the urine to look suspicious and get discounted. Nicolas Rossetti, manager of clinical services of Mobile Health, was quoted in Healthline saying, “Cleanses and teas can lower THC levels through their diuretic properties. They make individuals urinate a lot, which technically washes out the kidneys,”. He continued saying, “This flushing of the kidneys can lower the specific gravity or density of the urine“and a low specific gravity indicates contamination on the test, and the specimen could be discounted.” He also mentioned that even if the test does come back negative if it’s suspicious the clinic will ask you to re-do the test. 

Marijuana Dependence

According to Medical News Today, using marijuana heavily for long periods of time may cause you to develop a dependence.

Marijuana Withdrawal Symptoms

If you’re trying to detox of marijuana because you have a drug test coming up or you are trying to limit dependence on the drug, here are some symptoms you may experience according to Medical News Today, 

Healthline also included loss of focus and craving for weed. It should be noted, however, that not everyone will experience symptoms. 

How To Manage Withdrawl Symptoms 

Some symptoms may be more difficult to deal with than others. However, there are things to alleviate some of the symptoms. Medical News Today included some tips in dealing with the symptoms:

  • drinking plenty of water
  • reducing the amount of fat eaten
  • reducing or eliminating caffeine consumption
  • exercising
  • warm baths

Healthline also included their own list which is pretty similar. They suggest that the initial withdrawal period from 24-72 hours that you stay hydrated and avoid drinks filled with caffeine or sugar. The article also mentioned eating healthier in this time by avoiding junk food since junk food can make you irritable and sluggish. In terms of exercising, Healthline recommends at least 30 minutes per day. The article says, “exercise every day. Squeeze in at least 30 minutes of exercise each day. This provides a natural mood boost, and it can help remove toxins as you sweat.” Finally, Healthline encourages you to seek support if needed. The article says, “find support. Surround yourself with friends, family members, and others who can help you through any withdrawal symptoms you may experience.”

How To Detox From Weed

If you want to detox your body from weed because you have a drug test coming up, or whatever the reason the best thing to do is wait it out. Time is the best detox kit. However, if you’re experiencing issues from withdrawal and you need help, there are options available to you. 

According to Healthline, the following options are available if you’re having difficulty quitting, you can seek support from the following places:

  • Detoxification center
  • Inpatient rehabilitation center
  • Intensive outpatient programs
  • Support groups
  • Therapy


The best way to detox from weed is not using it for a period of time. Detox kits can be dangerous and may cause issues when you go to do a drug test if that’s the reason for your detox. For some people, that may present uncomfortable symptoms but the good news is there is external help available. In addition to that, while you’re weening of weed, keep hydrated, eat healthily, and exercise. That will help you to feel better.


About Trevann

Trevann is Stoner Rotation’s Jamaica-based lead writer for the Science section of our cannabis blog. She graduated with honors receiving her Bachelor of Science degree in Molecular Biology from the University of West Indies, Mona. For the last three years, she has covered some of the biggest questions around cannabis and health underpinned with research from supporting studies, medical journals and scholarly articles. Got something on your mind? You can reach her at [email protected].