How To Pass A Swab Test With Listerine Strips

In this article, we will explain the theory of how to pass the swab test with Listerine strips, but we urge you to think carefully about the consequences of failing the test.

Can you really pass the swab test with Listerine strips or is this just another bogus lie on the internet?

Many people claim that they have successfully passed the saliva test by using Listerine mouthwash or Listerine strips. But is it true, and do you want to take the risk that it isn’t?

Failing a drug test can have life-changing consequences. If you are applying for a really great new job, the employer may reject your application after failing a drug test, and if you are already employed, you may lose the job. That pays your bills.

Attempting to fool a drug test should not be taken lightly, and if you have enough advance warning about the test, your best course of action is to avoid taking any drugs during this period. This is the only way you can be sure that you will pass your sweep test.

With that said, let’s take a look at the claims on how to pass the swab test with Listerine strips.

How To Pass A Swab Test With Listerine Strips

Using Listerine strips to pass a swab test is unlikely to work unless you have advance warning of the test.

You shouldn’t rely on this method to help you beat a random drug test at work, but if you’re applying for a job or promotion and need to pass a drug test, As the theory goes, both Listerine mouthwash and Listerine strips can be used to improve your chances of passing the test.

You should be aware that drug screen tests for multiple substances and listerine strips are reported only to help avoid identifying marijuana.

The most popular theory is that the reason listerine strips work is because they absorb the remaining THC metabolites from your saliva. Well, there is no scientific support for this claim.

Steps To Take

The first thing you should do is avoid using marijuana in any form for at least 48 hours before your test is scheduled.

Next, you need to increase saliva production by eating more watery foods. Good choices are foods like fruits and vegetables and spicy foods.

The goal is to keep your mouth as moist as possible, so that your saliva can constantly clean THC residue from your mouth. Avoid foods like crackers and chips that make your mouth dry.

Eating fatty foods may also be a good idea. THC metabolites bind to fat molecules, so by eating fatty foods, you can flush more marijuana residue out of your mouth.

The next part of the process is brushing your teeth and mouth. You need to brush your teeth thoroughly, and then you should brush your gums, your tongue, and the inside of your cheeks. Brush three times a day for at least 5 to 10 minutes.

You may want to use a softer toothbrush than you normally use. If you use a brush with stiff bristles, over-brushing your gums and cheeks will hurt your mouth and you may not be able to brush as long as you need to.

Each time, after brushing, rinse your mouth thoroughly with Listerine. Really swish the mouthwash around before spitting it out, even if it stings.

On the day of the test, give your teeth and mouth a long cleaning session. Aim to brush for 20 to 30 minutes. Use plenty of toothpaste and spit and rinse every two minutes.

After brushing your teeth and mouth thoroughly, and rinsing your mouth with Listerine, place two Listerine strips on the inside of your cheeks and another under your tongue. Carry a water bottle with you on your trip to the test site.

As the strips dissolve, rinse your mouth with water, then place fresh strips inside your mouth.

When you arrive at the test site, continue to sip water from your water bottle. Apply fresh strips, melt in place while you wait to be called.

Once you are in the test room, the technician will ask you to refrain from eating or drinking anything for 10 minutes. This is so you can’t put anything in your mouth at the last minute that could interfere with the test results.

During this time, you should try to produce as much saliva as possible to clear any remaining traces of THC metabolites from your mouth.

Now the technician will use a cotton swab or sponge stick to swab the inside of your cheek or under your tongue.

Your saliva sample can be tested on the spot, so you’ll get your results within minutes. If they don’t do an immediate test, they’ll send your sample to a lab for analysis.

Lab results are usually back within 24 hours, but if the lab is very busy, you may have to wait a week or longer to get your result.

Which Drugs Can A Swab Test Detect?

Your saliva sample will usually be analyzed using a 5-panel drug test.

The 5-panel test will detect:

  • Opiates
  • Cocaine
  • Marijuana
  • Amphetamines and Methamphetamine
  • Phencyclidine (PCP) also called Angel Dust

Opioids including heroin, morphine and codeine can be detected in your saliva for up to 36 hours.

Cocaine can be detected by saliva tests up to 48 hours after use.

Marijuana metabolites can usually be picked up by saliva tests between 12 and 48 hours after use, but if you are a heavy user or have a high body fat percentage, metabolites can be detected for longer. Can be applied.

THC metabolites will also stay in your body longer if you smoke stronger strains of marijuana. If these exceptions apply to you, avoid longer.

Amphetamines and methamphetamine can be picked up by a saliva test 48 hours after use.

Phencyclidine, PCP, or Angel Dust will show up on a saliva test for up to 48 hours.

One thing that anyone taking a drug test should be aware of is that poppy seeds can give a false positive for morphine. So if you are having a drug test, avoid eating poppy seeds or any other food containing poppy seeds.

Is There Any Proof At All That This Method Can Work?

Unfortunately, the only evidence for this is anecdotal evidence from marijuana users who have passed their drug test after using the Listerine strip method.

Because people’s drug use patterns vary, it is unwise to base your judgment on the experiences of others.

The experience of someone who smoked two joints over the weekend and then used Listerine strips to pass a drug test 4 days later, if you are a daily smoker and have to test in 2 If so, it doesn’t give you any useful information about your chances. Day.

Test The Process Yourself To Make Sure That It Works

The only way to know if this process will work well enough to beat a drug test is to take a drug test yourself. That way you get a real-world result instead of crossing your fingers and hoping for the best.

There are many times when turning to the Internet can provide a definitive answer to a question and provide you with a guarantee of action, but this is not one of them.

You can easily find 5-panel drug tests to buy from pharmacies or online stores including Amazon.

On the day of your test, follow the instructions provided with your at-home test and rinse your mouth. You will see your result in few minutes. If it’s clear, you’re clear. But you may want to use some Listerine strips just to be sure.

If your test gives you a positive result, go and brush your teeth, tongue, gums, and inner cheeks again, then rinse your mouth with more Listerine.

Dissolve two strips of Listerine on your cheeks, wait 10 minutes, then check yourself again.

If you still get a positive result, it’s very likely that your original test will also test positive for marijuana.

What should you do if this happens? If it’s possible for you to reschedule a drug test, it makes sense to take your test a day or two later so you can be sure to pass.


The only guaranteed way to pass a swab test with Listerine strips is to abstain from the drug in the period before you take the test.

While people report passing drug tests with Listerine strips, it is unwise to base important decisions on the amount heard.

In any case, Listerine is only claimed to work on the marijuana portion of the drug screen, so if you take opiates, cocaine, amphetamines, or PCP, the Listerine method may not help you at all.

And remember, because the Listerine strip method takes time to work, you can’t rely on Listerine strips to help you beat a random drug test at work.

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