How to Pass a Mouth Swab Drug Test for Weed

What Is a Mouth Swab Drug Test?

is a type of drug test in which a sample of your saliva is taken and analyzed for drug residues. They’re looking for drug residues that occur as a result of taking a medicine directly by mouth, not residues that have entered the bloodstream and then resurfaced in the saliva. As a result, they’re on the lookout for medications that may be taken orally as well as through the nose. This could include smoked marijuana, edible marijuana such as marijuana brownies and sweets, prescription or illicit fentanyl lollipops, vaped marijuana, snorted cocaine, smoked methamphetamine, and other substances. Saliva can contain any of these. The detection period, on the other hand, is only 2 to 3 days, and it is frequently less than that.

How does a mouth swab drug test work?

The initial mouth swab will return results in just minutes. Drug residues will cling to antibodies in the test, revealing if drugs are present at detectable amounts with a color pattern. This is referred to as an immunoassay. If drugs are found, the results can be confirmed by submitting the sample to a lab for gas chromatography/mass spectrometry and verification.

For many substances of abuse and pharmaceuticals, these are the upper limits. Even if you do not employ a detox procedure, your odds of passing a saliva test are very good if you took a little amount of a chemical more than 3 days ago.


Toxin Rid Rescue Wash Mouthwash

  • This specifically prepared mouthwash allows you to get rid of any detectable drug toxins that may have remained in your mouth moments before the drug test.
  • The 1-ounce bottle makes it simple to dispose of or conceal in the moments leading up to the test.

What is an Inconclusive Test?

If your saliva is too dilute, you could get an inconclusive result. How might this happen? If you washed your mouth out and failed to salivate sufficiently, this can happen. Or, if you are intentionally holding extra fluid in your mouth in an effort to thwart the drug test. Unless you have been using oral drugs right there on the job, this is likely unnecessary as your chances of passing are already fairly high. Many employers may use a saliva test because they know them to be ineffective unless you are using drugs on the job due to the short detection window. If you are using drugs while at work (unprescribed), most likely you have a problem and you will have to face it sooner or later.

An inconclusive test could mean you may have tried to beat the test, but as of today, there is no way to prove this and anyone claiming they have proof is likely bs-ing you. The vast majority of inconclusive results should be a result of innocently drinking too much water and this is not a crime. However, any potential employer can choose to disqualify an inconclusive result.

When do employers require passing swabs screens for drugs?

When are mouth swab drug tests used by employers?

  • After an accident

If you were operating heavy machinery, a large truck, a van, or a corporate automobile at the time of the accident, you may be subjected to an oral test to determine whether you were under the influence. Many medications will appear minutes after use, while others will take longer to reach the bloodstream, but this test provides the most accurate estimate of on-the-job drug use.

  • You fired a shot at someone

If you shoot someone as a police officer or even an ordinary citizen, you may be tested for drug usage to discover if you were in a state of intoxication at the time of the shooting. This can lead to a conviction, but it can also help with an insanity defense or a reduced capacity claim.

  • Before a doctor ordered test or before giving scheduled medications

Before prescribing scheduled medications like benzodiazepines or methadone, a doctor or psychiatrist may have you drug tested to ensure you don’t have a prior addiction or to avoid drug interactions with the prescriptions she intends to prescribe.

  • Prior to receiving a promotion or a boost in pay

If you are up for a promotion, you may have to have a drug test to get a new title and position

  • Before truck driving school or other Department of Transportation regulated employment

Truck drivers and those getting licenses to operate heavy machinery may be drug tested to assure they are not under the influence of mind altering drugs

  • Pre-employment

This could be the most typical reason for any type of drug test. Pre-employment drug testing, on the other hand, are typically urine tests rather than saliva tests. Saliva tests are performed to find out if someone has used drugs recently

  • Returning to duty after an accident (military, police)

If you are returning to duty, you may get a drug test. Police, surprisingly, rarely get these in the United States and this is a reason police officers have high levels of drug addiction[1]

  • Suspected drug use

You may be subjected to a saliva drug test if you are suspected of drug use on the workplace and someone has likely informed on you

Detection times for THC in oral swab drug tests

Saliva drug test detection times THC

Period of detection for drug tests using a mouth swab

Q and A

Q: Why Doesn’t THC Stay In The Salivary System For Very Long?
A: An hour after ingesting an edible, smoking a joint, or vaping THC, THC will appear in your saliva. This is THC that has not been digested. If you haven’t used the drug in a while, your saliva should be free of this type of residue in 48 hours. There are, however, two types of THC that can be tested for. 9-THC is one among them. This is the residue that remains in your mouth after you have smoked THC. It hasn’t been broken down by the liver. It only takes a few hours for it to exit the saliva. As a result, if you tested positive for 9-THC in a saliva test, it suggests you were smoking at work. Shame on you, sir, but you still have a decent chance of passing if you use a peroxide mouthwash or one of the other methods suggested herein. 9-THC can be detected one hour after consumption and for up to 12 to 13 hours after that.[2]

THC-COOH, the metabolized form, may be detected in some saliva tests. This necessitates the medicine entering the bloodstream, being digested by the liver, and then reaching the salivary glands. As a result, tests that check for THC-COOH may be able to detect drug usage up to 30 hours later.

Q: Does THC stay in your saliva drug test for a long time?
A: THC can be detectable in your saliva for up to 72 hours.

Q: What is the difference between a cannabis mouth swab test and a cannabis saliva test?
A: In most cases, there isn’t much of a difference. People often mix an oral fluid test for drug residues, which is what your drug test is, with a cheek swab test to collect cells for disease testing or DNA collection. Drug tests are designed to gather oral fluid rather than cells. The swab can be used under the tongue, between the cheeks, or anywhere else where saliva flows freely.

Pros and cons of a saliva test

The difference between a mouth swab test and a urine test

For drugs that were recently eaten orally and left residues in the mouth, an oral fluid test will provide a detection window of roughly 3 days. After being digested by the liver, a little amount of metabolized medication may reach the saliva. This can be detected by looking at the saliva.

A urine test can discover cannabis uses for up to 30 days.

Oral Fluid Test versus Blood Test

A blood test can detect drug usage for 30 days, whereas a saliva test can only detect drug use during the last three days. Oral fluid testing is less intrusive and more visible. It is less expensive to perform an oral fluid test. Blood may be used to capture a lot of information, including DNA, for unlawful purposes, therefore it collects less personal information. Unauthorized data can be sold to other businesses or obtained by hackers working for foreign entities or governments. A payment processor’s security breach in 2020 exposed medical records of LabCorp and Quest Diagnostic clients.[3] You should minimize the amount of biological material you give to companies as much as feasible. It may be possible in the future to aim biological weapons at people with specific genetics.

Oral Fluid test versus Hair test

For up to 90 days, a hair test can reveal drug usage. Hair can be examined for DNA, which makes it intrusive. Although cut hair without the follicle cannot be analyzed for nuclear DNA, it can be tested for mitochondrial DNA. A hair test is not cheap. Drugs can take up to a week to be detected in hair, but only minutes to approximately an hour to be detected in saliva.

How can I pass a cotton swab drug test with mouthwash?

Home remedies to pass a saliva drug test for marijuana

Peroxide method

Peroxide is an oxidant that can help you pass a drug test by destroying some drug residues and acting as an adulterant. It is unlikely that it will be identified as an adulterant due to its widespread use as a mouthwash. Simply take a little sip of 3 percent peroxide mouthwash from any supermarket, mix it with a swig of water, swish for one minute, then spit out. Then go ahead and take your exam; you have a high chance of passing.

The actual trick is that you have to perform it shortly before the test, and mouth swab tests are frequently random, on-the-job, so you’ll need peroxide on hand. So have a tiny bottle of peroxide at your workstation. When a drug test is requested, take a break, go to the toilet, and swirl your peroxide mouthwash for a minute before proceeding.

How to Pass an Oral Swab Drug Test for Marijuana Using Detox Products


Toxin Rid Rescue Wash Mouthwash

  • This specially formulated mouth wash allows you to rid your mouth of detectable drug toxins left in the mouth moments before the drug test is to occur.
  • The small 1-ounce bottle makes it easy to dispose of or hide in the moments before the test

Toxin Rid Detox Mouthwash is a well-known brand, but we are unable to determine the exact ingredients. Swig one-third of a glass, swish for three minutes, and spit it out. Rep with the remainder of the bottle. Swishing for 9 minutes seems excessive and will raise suspicion, so you should probably swish for only one minute per swig. Our conclusion is that hydrogen peroxide is more likely to be more effective, but if you prefer a detox product, this is a popular choice.

Another popular option is Stinger Mouthwash. The unique feature of this mouthwash is that it can be swallowed after swishing. It has niacin, sugars, and amino acids.

This Stinger Mouthwash is another popular choice. The unique thing about this mouthwash is that you can swallow it when done swishing. It contains niacin, some sugars and amino acids.

This Amazon review is skeptical of the product’s effectiveness. For the record, Stinger detox also sells detox drinks that do not contain creatine, which makes such products suspect because they necessitate the consumption of large amounts of water without replacing the creatine. This could indicate that they are not carefully crafting their products to ensure a good outcome. Reviewers claimed their product produced a dilute result, which is to be expected for a dilution product that does not contain creatine. Reviewers claimed their product produced a dilute result, which is to be expected for a dilution product that does not contain creatine. This could be considered a rookie error, but a company selling detox products should either know better, or they are purposefully leaving out the creatine to sell more of a 1detox drinks; however, if you decide to use a Stinger detox drink, take a creatine supplement with it. If you use mouthwash, you should consider using a peroxide rinse, which is more likely to be effective. People sometimes seek the assurance that comes with buying a professional product or simply spending a lot of money on an endeavor. If that’s your desire, Stinger mouthwash will suffice. It is substantially more expensive than peroxide mouthwash.

Conclusion: Is it possible to naturally pass fluid swab cheek tests?

Yes, using a peroxide mouthwash for sixty seconds right before your test is the simplest, cheapest, and most effective method. You may be given 10 minutes to allow your mouth to fill with new saliva, but untrained testers or technicians may bypass this phase in order to complete the uncomfortable work of probing other people’s mouths for medical information. Simply refrain as soon as you are aware that you will be tested. You should keep hydrogen peroxide (the kind from the grocery store) in your desk. You’ll have a decent chance of passing a saliva test if you use it as a regular mouthwash just before your test. Use at your own risk, and only in jurisdictions where it is legal to do so. Toxin Rid Detox Mouthwash is a reliable product.


[1] “Police and Addiction | Psychology Today.” 30 Mar. 2018, Accessed 1 Aug. 2020.

[2] “Oral fluid cannabinoid concentrations following … – NCBI – NIH.” 17 Aug. 2013, Accessed 2 Aug. 2020.

[3] “LabCorp security lapse exposed thousands of medical ….” 28 Jan. 2020, Accessed 8 Aug. 2020.