Stop smoking. Right now! If you are reading this article then there’s a good chance you have a drug test coming up. The best thing you can do to pass a drug test is put as much time as possible between a smoke session and your test. I know that’s not what you want to hear, but it’s truly the best advice I could give you.

This post is sponsored by PassYourTest.com. Check out their site for extra information about passing drug tests.

If you’re looking for something specific you can use the links below to jump ahead to a specific section, however; I certainly recommend reading this article in it’s entirety (I know it’s long, but it’s worth it).

Urine Screening

How Long Can THC Be Detected in Urine?

Types of Urine Tests

Immunoassay

Gas Chromatography – Mass Spectrometry (GC-MS)

How To Beat a Urine Screening for Marijuana

Naturally

Exercise

Diet

Diuretics

Diluting Your Urine By Drinking Water

Niacin

Bleach

Detox drinks

Replace

Real vs. Synthetic Urine

Concealing & Maintaining Proper Replacement Urine Temperature

Urine Additives

Palo azul tea

Blood Testing

Saliva Swab

Hair Follicle Test

Please be aware of all laws concerning the tampering of drug tests. The following article is for informational purposes only.

If you know you are going to be tested regularly (military, probation, etc.) then you may want to consider not smoking for a while. The stress of never knowing if a random screening is coming may not be worth it. Of course, this is a personal choice that you’ll have to make for yourself – I’m certainly not here to judge. You may be using it medically, and don’t have the option to quit smoking all together. All I can say is I sincerely feel for you. A system that creates a criminal out of the ill goes against everything that should be moral.

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On the other hand, more often than not, you don’t have a ton of notice. If you don’t have enough time to let your body naturally detox then you’ll need to find an alternative method to pass the test. That’s what this article is all about.

The information presented in this article is a combination of personal experiences, experiences of friends, and a bunch of research. I tried to compile as much knowledge as I could, but frankly I need a little help. If you’ve tried any of these methods or if you know something that isn’t covered in the article let me know in the comment section at the bottom of the article. The more relevant details the better (e.g. height, weight, smoking habits, method used). This article becomes much more useful once people share their personal stories and advice. As always, feel free to put a fake name and email address when prompted.

There is no 100% guarantee that any one method would work for everyone. No matter which method you choose there is always a possibility of failure.

Urine Screening

Urine is by far the most common method used to test for marijuana use. Unfortunately, marijuana can be detected in urine longer than many of the other testing methods.

How Long Can THC Be Detected in Urine?

This is a very complicated topic. For this reason, I wrote an entire article dedicated to how long weed stays in your system. Please refer to that article for more information.

Types of Urine Tests

There are two primary ways that urine is tested for marijuana. Unfortunately, neither one of them is multiple choice. Each one has it’s own set of pros and cons. They are both briefly explained below.

Immunoassay

This method for urine screening uses test strips that are basically identical to the ones that you can buy over the counter or online. The test strips are briefly dipped into the urine sample. A different chemical reaction happens depending on if THC is present or not. Typically, 2 lines on the strip means negative, and 1 line means positive.

The test strips not only check for THC, but they may also test for creatinine, nitrite, pH ,oxidant, specific gravity, glutaraldehyde, or possibly others. If you drink too much water (discussed later) these additional elements won’t be present, and the test may be considered inconclusive or you may simply fail. Also, if you replace your urine (also discussed later) it must contain these properties.

This is the most common method of screening urine for THC. They are not 100% accurate and rarely can produce a false positive. If you dispute the results (usually a lost cause) you’ll most likely be tested using a GC-MS test, which is discussed next.

If you have any experience disputing a positive result please let everyone know in the comments.

Gas Chromatography – Mass Spectrometry (GC-MS)

This test is more in depth than the immunoassay test. It’s also more expensive which is why it is used less often. If your first test is positive then they can do a GC-MS test to rule out the possibility of a false negative.

For this test, your sample is run through a big fancy machine which gives a much wider range of data. This can be a problem if you’re using synthetic urine (discussed below). They are able to test for additional proteins and all types of other stuff. This isn’t to say a GC-MS test can’t be beat, but it is more difficult to fool.

In short, you do not want your sample to go to this test. If you test positive on a GC-MS test then you have pretty much a zero chance of fighting it.

How To Beat a Urine Screening for Marijuana

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The Golden Rule: Never use the first or last part of your urine stream for a sample. Only let your midstream enter the cup as it carries lower levels of toxins.

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If you plan to use any of the methods below (except replacing) I recommend getting some THC test kits so you can check the results at home. The test strips are basically the same as the immunoassay test, so they make for a pretty reliable comparison.

Naturally

All-natural is certainly the way to go if you have some time. None of these are super quick, but they will help speed up the process a bit. The exact amount of time is going to be different from person to person.

Exercise

This only helps if you have more than 72 hours before your test. Do as little exercise as possible once you’re less than 3 days away. Here’s why: THC is absorbed into fat cells. Lots of exercise will burn off the fat and release the THC. The more fat you can burn the better off you’ll be. Once you’re 72 hours away you want want your body to stop burning/releasing fat.

Diet

The diet works similar to exercise. If you are more than 72 hours away from taking a test then you should eat very lean meals with lots of fiber. Once you get to the 72 hour mark switch to a high fat diet with lots of red meat. Your body will start saving the fat cells and help keep less THC from entering your kidneys.

Diuretics

A diuretic is anything that makes you urinate more. It does not actually clean your body or detox you of any THC. Diuretics do; however, help flush out your bladder which lowers the amount of THC in a sample. There are diuretic pills, but a lot of them are prescription. Of course, there’s plenty of diuretic solutions available online, but that’s not really sticking to the idea of passing naturally. Here’s a list of common diuretics you can find at your local grocery store:

Caffeinated drinks such as tea and coffee

Cranberry juice

Citrus fruits and drinks

Lettuce and Spinach

Garlic

Palo Azul (discussed later)

There isn’t much more you can do to naturally speed up the detox process. If you have several weeks you can buy a few home testing kits to know if your efforts are paying off quickly enough.

From here, I’m going to talk more about flushing/diluting with water. I don’t consider this method natural, because it requires you to take several supplements in order to achieve the best results. Drinking water does; however, increase your likelihood of passing, so it’s worth taking a look at.

Diluting Your Urine By Drinking Water

Drinking excessive amounts of water essentially flushes out your system and dilutes the toxins in your urine. Do not confuse this with actually being THC free. It’s merely the illusion of being THC-free. The concept is simple. Start drinking lots of water starting the morning of your drug screening. You should aim to urinate 3 – 5 times before the test. Continue to drink lots of water until the test is complete. (Make sure you don’t go overboard. You can actually die from drinking too much water – for real. It also puts a considerable amount of strain on your kidneys. )

The problem with flushing your system with water is that it also lowers the amount of other substances that occur naturally in urine, such as creatine. The color will be clear which is a dead give away that technicians are trained to look for. If you pee clear then there is a good chance that your sample won’t even make it to the testing process. For this method to stand a chance, you’re going to have to take a supplement(s). It helps to start taking the supplements a few days before testing if possible. Always read the labels on supplements and don’t overdo the dosage.

B12 – This will add a yellow color to your urine, which will keep lab technicians from becoming suspicious of the sample. This is the most important supplement in this list. It can be purchased at pretty much any pharmacy or health for store. You can also purchase it – This will add a yellow color to your urine, which will keep lab technicians from becoming suspicious of the sample. This is the most important supplement in this list. It can be purchased at pretty much any pharmacy or health for store. You can also purchase it online

Creatine – Urine tests will check for the presence of creatine. If you dilute then there will not be much creatine in your body. Taking a creatine supplement will help raise the amount of creatine in your body. Creatine does come with considerable health risks. I advise – Urine tests will check for the presence of creatine. If you dilute then there will not be much creatine in your body. Taking a creatine supplement will help raise the amount of creatine in your body. Creatine does come with considerable health risks. I advise reading this article and speaking to your doctor before you decide if taking creatine is right for you.

Multivitamin – A good multivitamin will help replenish vitamins and minerals found naturally in your body.

Some people claim to pass urine screenings using only the B12. The creatine and multivitamins may not be completely necessary, but I tend to ere on the side of caution.

Labs are constantly evolving, and testing for additional elements. Specific gravity and PH level are just a few things that labs test for specifically to authenticate the sample. A GC-MS screening has the capability to check for a whole array of proteins, vitamins, and other bodily stuff. The water + supplements method is better than nothing, but it’s certainly not guaranteed. If you have time, use home test strips to test the effectiveness beforehand.

Niacin

The effectiveness of niacin has been very hotly debated. There are a lot of people who swear by it. I have used niacin and did in fact pass a drug test. I did have 10 days without smoking and had done the dilution method as well so it’s difficult to know if the niacin contributed or not. It helps if you have a few days notice to start taking the niacin in small doses.

If you take excessive amounts of niacin at one time you’ll get a burning sensation and turn bright red. You may also develop hives. I recommend taking 250mg or less a day. Everyone reacts differently so start slow.

There are people who have claimed to have taken high doses and passed tests in a short amount of time. Given the health risks, this is not something I would personally recommend, but sometimes desperate times call for desperate measures. You should be fine to take up to 1000mg a day as long as it’s not over an extended amount of time. This also assumes you don’t have any pre existing conditions that might react to the niacin. If you take that much then prepare to be uncomfortable for a few hours. You’ll also look terrible so it’s nice if you don’t have to go in public when taking higher doses of niacin.

If taking large doses you may want to leave some time between the screening and your last niacin ‘flush’. You want to make sure you’re not blood red when you go to take the drug screening. It’s definitely a cause for suspicion.

I do believe that niacin helps to some degree, but I’m still trying to gather more evidence to determine how reliable it is. If you’ve tried using niacin on a drug test it would be super helpful if you could tell everyone a little bit about it in the comments.

I think niacin is best done in small doses over a few days to a week. I also wouldn’t rely solely on niacin. Instead, I would use it in addition to some of the other methods discussed in this article.

Bleach

Do not drink bleach. Yes, you can find people in forums claiming to have drank a cap full of bleach and passes a test on short notice, but I don’t care. Have you ever read the warning label on a bottle of bleach? It probably doesn’t work anyway. Just don’t drink bleach – ever. That’s all I’ve got to say about that.

Detox drinks

Let me start by saying that the word detox is a pretty misconceiving term. These drinks are not detoxing or cleaning your body of anything. In essence, the detox drinks are doing the same thing as diluting with water and supplements. Any ‘detox’ remedy will also instruct you to drink lots of water, and the ingredients are a variety of vitamins and supplements used to make your urine appear undiluted to the test.

As always, the more time you put between smoking and the test the better off you’ll be.

Do detox drinks work? My answer is yes – in some cases. I have personally used a detox drink to pass a drug test. I was smoking heavily, but I had three days notice and quit smoking. I followed the instructions exactly, and passed a pre-occupation test at a lab. I do believe that I would have gotten the same results using the dilution and supplements method.

Detox drinks are also super overpriced, but they can be convenient compared to buying a bunch of different supplements. This is the detox drink I used to pass a drug test. There is absolutely no guarantee that it will also work for you. If you’ve used a detox drink let everyone know in the comments. We can compare which drinks gave better results.

Replace

This method is different than all the rest. The other methods were ways to make your own urine passable. This method negates using your own urine all together. Instead, you can ‘smuggle’ in clean urine, and never have to worry about how much THC is actually in your system. This method certainly comes with it’s own risks. It works best when you are taking a screen where you are not being directly watched. This is often the case for pre-employment lab screenings. On the other hand, probation or military screening are often performed with someone watching you. If you are being watch during the test then it can get very tricky, but it is possible. If you are unsure if someone will be watching you then I suggest using one of the previous methods as a backup just in case.

Real vs. Synthetic Urine

If you’re going to replace your urine then you’re going to need a proper sample. There are two ways you can go about getting a sample that is THC-free. You can 1) get a sample from a friend or family member who doesn’t smoke weed (or do any other drugs for that matter), or you can 2) purchase a synthetic urine. Each method has it’s own pros and cons which are discussed below.

Real urine is great because it’s pretty much guaranteed to have all the right creatine levels, specific gravity, and proteins. Use a plastic container to collect the urine. You will need at least 3 ounces to take the test. If a sample is left unrefrigerated it will only remain good for 6-8 hours. This is fine if you are collecting the sample right before the test. If you are collecting the urine sample earlier then you’ll need to refrigerate or freeze the urine. In the refrigerator, the sample will last around a month. A frozen sample can be used for 6 months – 1 year. I recommend using the freshest sample you can get. From here, you’ll need to know how to keep the sample at the proper temperature (discussed below).

Synthetic urine is created in a lab instead of in a human. Synthetic urine can remain usable for 1-2 years unrefrigerated. This is a pretty good solution if you don’t know exactly when you’re getting drug tested or you don’t know anyone who is THC-free and cool with you borrowing some piss. Synthetics are also helpful because the come with the necessary equipment to ensure proper temperature (discussed below). Make sure you check the expiration date on the box. I would not buy synthetic urine that does not have an expiration date. The main risk is if a lab begins to test for a specific protein that hasn’t been added to the lab sample. I have used synthetic urine for several drug screenings and it’s always worked perfectly. There are several synthetic urine manufacturers, but I’ve used QuickFix and XStream. If you’ve used another brand of synthetic urine let everyone know in the comments how the screening went.

Concealing & Maintaining Proper Replacement Urine Temperature

If you’re not being watched then the easiest way to get caught replacing a sample is if it’s not the correct temperature. The perfect temp is 98.7 degrees, but it’s okay if it’s a little over or under (under is better than over). Between 92-100 degrees is generally okay.

Synthetic urine typically comes with a bottle that has a temperature gauge on the side. This thermometer is super helpful when making sure your temp is just right. If you’re not using a synthetic then forehead thermometers work great. I like to use hand warmers (the kind you take camping) to warm up the sample. Just attach the hand warmer to the outside of your bottle with a rubber band, and keep an eye on your temperature gauge.

I use athletic tape to secure it to my leg. It’s a lot nicer than ripping a bunch of duct tape off your leg, and you can find it at any pharmacy. You’re going to want to secure it to the inside of your leg as close to your crotch as possible. Wear thick and loose fitting pants. Jeans are perfect. Here’s my procedure: 1) Use hand warmer to heat synthetic urine to 100 degrees. 2) Use the hand warmer to warm the part of my leg that the bottle is touching. 3) Remove the hand warmer, and strap the bottle of urine to my leg in a parking lot near (not at) the testing facility. 4) Sit around and wait forever in the lobby. This is why I heat it up to 100 degrees. It typically drops a few degrees by the time my name is called. 5) I empty my pockets into a bin as instructed by technician. 6) I walk into lab bathroom and close the door behind me. 7) I remove the sample, check the temperature, and simply pour it in the cup. If it’s too hot, you can cool it off by blowing on the sample. If it’s too cold though – your pretty screwed. 8) Strap the bottle back to your leg and you’re good to go.

If you’re a girl, then you have an extra option. If you use a cylindrical plastic container then it can be inserted vaginally. This will keep the sample at body temp really well. Make sure the container has time to warm up. You can use a hand warmer and thermometer to get it to the right temp if you don’t want to insert it until right before you go in. Otherwise, you’ll want to insert the sample at least an hour before taking the test to make sure it’s body temp.

If you’re being watched then everything changes. You’ll have to practice and be extremely careful to look natural. I’ve never been in this situation so I can’t say for sure how intense it is. I do have a buddy who got caught. He was being watched, but was able to pull of squirting synthetic out of a bottle. Unfortunately, he forgot to close the lid before releasing at the end so it made a sucking sound as the air rushed back in. Needless to say he failed the screening.

For guys, you can buy a whizzinator. It’s basically a fake penis that you strap on so it looks like the replacement urine is actually coming from a real penis. It’s super weird and pretty expensive, but I know more than one person who uses it on a regular basis without incident. If you don’t have the money for an actual whizzinator then you can go the cheaper route by purchasing a urinal strap kit and making your own.

If you know another way to conceal replacement urine let us all know in the comments.

Urine Additives

There are lots of companies out there creating additives that claim to make your urine clean. The idea is that you pour a chemical into your dirty sample and it’s made clean. I absolutely do not recommend ever using this approach. Most tests check for additives, and you will fail the test. If you’re going to smuggle in something then bring a clean sample instead of a chemical to add to a dirty sample.

Palo azul tea

This one seems to be a little newer to the game, but has been picking up speed pretty quickly. In short, Palo Azul is a root that grows in Mexico and Texas. You take about a half an ounce and boil it into 1-1.5 gallons of tea. You drink the tea 24 hours before the test and magically you pass. I’ve never tried using Palo Azul so I started to do some research, and here’s what I found.

There are a lot of internet reviews about this stuff. Some are good, and some are bad. The problem is that a lot of the reviews appear to be coming from the sites who are selling Palo Azul. They are written very awkward (sounds like a sales pitch), and always contain links to buy the product. I’m can’t say for sure how many of the reviews are genuine, but I would be my bottom dollar that a large majority are fake.

I also find a lot of reviews that say they tried the tea and still failed the test. With this in mind, I would not trust Palo Azul tea alone, but it may not be a bad idea to use this along with some of the other methods. It’s a great diuretic which is helpful but certainly no magic spell. If you have used Palo Azul let me know if it worked in the comments. To avoid more noise in the area, I will not allow comments that contain links. This is purely an attempt at getting unbiased information from people who are not involved in the Palo Azul industry.

Blood Testing

Blood tests measures active THC which is quite different from the THC that is screened in a urine test. THC will show up in your bloodstream for anywhere from a couple hours to several days depending on your level of use. In extreme cases, it may be traceable for up to a week, but that would be unusual. This method is often used in association with DUIs and car accidents. Lab technicians can analyze the level of THC and predict whether or not someone was high at the time of accident. This is not perfect though and puts regular users at risk for appearing intoxicated when they weren’t.

If you have a few days then you should be fine. If you have to take a blood test on short notice then I don’t know of anything you can really do short of a complete blood transfusion. Exercise may circulate the blood and help, but this is purely a thought – I have no proof whatsoever that this is the case. If anyone knows ways to detox your blood faster please let everyone know in the comments.

Saliva Swab

Saliva swabs are most commonly used by employers because they can administer them on the spot. They can also watch you perform the screening unlike urine tests. THC can be detected by an oral swab for anywhere from a few hours to a day. If you’re being tested at work, and you haven’t smoked that day then you’re probably fine. Of course, make sure to brush your teeth and use mouthwash. This stuff wont work miracles if you smoke right before the test, but they can help reduce toxins to some extent. Drop a comment if you know any quick fixes to pass a saliva test for marijuana.

Hair Follicle Test

This method had come under a lot of scrutiny. Hair tests are highly biased against african americans as toxins are more easily detected in coarse, dark hair. THC can be detected in hair for years if it doesn’t get cut. The THC gets embedded in the hair and remains there usually until that portion of the hair is cut. Also, it takes a week or two for your hair containing the drug to grow above the scalp to be cut. So, hair follicle drug tests have a much longer lag time before THC detection. This means, if you only smoked once, it won’t show up on a hair test for a few days up to a few weeks.

This test is most often used when someone is trying to establish whether or not you’ve been smoking habitually over the last few months. They are more expensive than other types of tests so this makes them less popular.

Don’t think shaving your head will get you off the hook. Technicians can take hair from pretty much any part of your body. I guess you could shave your entire body and try to pass yourself off as a competition swimmer, but I bet you want to keep your eyebrows.

Given the bias of the test I don’t think they should ever be used, but unfortunately they are still used sometimes. There are several hair shampoos that claim to ‘detox your hair’. I have read soooo many reports of these shampoos not working that I’m not even going to link to them. If anyone has experience with these shampoos or another method for hair please let everyone know in the comments.

Conclusion

I’m going to drop a bomb on your right here at the end. THERE IS NO SUCH THING AS A RAPID DETOX. It simply doesn’t exist. It’s just not how the human body works. That doesn’t mean that you can’t fool a drug test. Just keep in mind that’s what your doing – fooling, not detoxing. I always recommend buying some THC test kits to check your levels yourself before going to take a test.

This is by no means the end all – be all guide to drug testing, but I do intend for it to eventually become a definitive guide. In order to make that happen I really need help from you. If you have any experience or information to add please let me know in the comments. Feel free to use a fake name and email address when you leave a comment.