How To Pass A Mouth Swab Drug Test

It has become standard procedure for companies to screen their applicants for alcohol or drug use. Even employees are legally required to undergo different forms of drug testing, urine drug and alcohol tests, blood tests, breath alcohol tests, and hair drug tests.

One of the most common types of drug testing is the mouth swab drug test. This is also known as the oral fluids test or the saliva test. With this method, the examiner collects saliva from the individual and it is tested for the use of illegal drugs.

According to Addiction Resource, mouth swab drug tests are capable of detecting drugs that have been consumed and used within the past few days. Moreover, there are certain drugs that stay in the body longer than others.

How Does a Mouth Swab Drug Test Work?

Every day, you consume food, water, air, and other contaminants into your mouth. Typically, our body metabolizes these and converts them into metabolites, which are then used by our body. The excess of these metabolites is then stored into some of the fast-growing cells like our hair, nails, and fats.

Keep in mind that all metabolites have different levels of stickiness; thus, they remain in the cells at different periods of time. These metabolites would eventually reach our bloodstream, then it will leach out into our hair, urine, and saliva, which is why the most common types of drug tests utilize an individual’s hair, urine, and saliva.

Mouth swab tests are made to look for any activated THC, which is delta-9 THC. These are easy to administer because you only need to collect saliva and test it on the kit. Assessing the results of the kit are indicated on the instructions. It’s as simple as checking for colored lines.

What are Some of the Federal and State Drug Testing Laws?

Certain laws and policies concerning drug testing tend to vary from state to state. There are those that pose certain limits as to what is being tested.

According to the Drug-Free Workplace Act of 1988, employers are legally required to take action against the use of drugs in the workplace. Moreover, I would highly advise that you look into your state’s policy so that you can be sure whether or not there is a need for you to undergo these drug tests.

7 Ways to Pass a Saliva Drug Test

  1. Brush Your Teeth

The most obvious and natural way of passing a saliva test is by cleansing your mouth. Personally, I find this option to be the least effective as it does not guarantee you a 100% passing rate. However, it is a good place to start. Here’s a good video by the American Dental Association explaining the proper way of brushing your teeth.

Brush Your Teeth

If your toxin intake is low in the first place, then I highly suggest that you do not consume any more toxins. Proceed to clean your mouth and brush your teeth thoroughly a few days before the test.


  • You won’t need anything other than your toothbrush
  • If you haven’t got the time to prepare for the test, then this can be your last resort


  • This is only effective if you are a light user
  • There is still a high chance that the toxins in your mouth will be detected
  • Brushing your teeth does not guarantee that all toxins are removed
  1. Suck on Sour Candies

According to a study published on the US National Library of Medicine National Institute of Health, oral fluid typically provides a non-invasive specimen for drug testing. I’ve read that it is excreted by three glands, which are the submaxillary, sublingual, and parotid. Moreover, if your saliva is very acidic, these tests will find it difficult to detect the drugs.

Suck on Sour Candies

Using the findings of this particular study, I’ve concluded that sucking on sour candies can be effective at lowering your chances of getting a positive on the drug test. In fact, I did a little research and there are people who have shared their experiences with this tactic. They sucked on several sour candies in an attempt to change their oral fluids.


  • There is no need to buy any expensive equipment
  • You can perform this a day before the actual test
  • You can effectively change your oral fluids


  • You can change your oral fluids but only up to a certain extent
  • There is still a high chance that the toxins in your mouth will be detected
  • There aren’t any studies confirming which type of sour candy is most effective
  1. Chew on Mint Gum

As I have explained, tetrahydrocannabinol (THC) and other toxins tend to leave traces in your mouth. One of the many ways to mask this toxin during a saliva test is chewing on a piece of gum. Stemming from the previous point, sour candies and gums have the capacity to alter your oral fluids, making it easier to pass a saliva drug test.

Chew on Mint Gum

On another note, relying on a mere mint gum may be lacking in various areas. For one, you can never really be sure that an ordinary piece of gum can eliminate all traces of toxins in your mouth. Nevertheless, this only provides you with a short window of opportunity to pass your drug test.


  • You can use this tactic even if the saliva test is on the same day
  • It only takes about a few seconds to take effect
  • It’s very discreet


  • You can change your oral fluids but only up to a certain extent
  • There aren’t any studies confirming which type of gum is most effective
  1. Steer Clear From Drugs

Well, I have had my fair share of drug tests. Let me tell you, it is a very nerve-racking experience. I have learned that the best remedy to clear your mind from any anxiety before a test is the knowledge that you are 100% clean.

Steer Clear From Drugs

If you desperately don’t want to fail your drug test, then the best advice that I could give you is to steer clear from drugs. If you don’t use drugs or consume alcohol, then there is absolutely no reason to worry on the day of the test.


  • You are guaranteed to pass the test
  • The only thing you’ll ever need is discipline
  • There is no need to buy any expensive equipment


  • If you give in to your temptation, then you’ll surely fail the test
  • Steering clear away from drugs can be a real challenge for some people
  1. Use Listerine

Listerine is one of the more popular brands of antiseptic mouth wash products. According to Listerine’s official website, it is a great remedy for dental health as it contains various essential oils, such as thymol, menthol, eucalyptol, and methyl salicylate. These are tasked to kill germs inside the mouth, prevent caries, treat gum problems, and refresh the breath of the individual.

Use Listerine

Aside from these, Listerine is also used by those who want to pass a mouth swab drug test. While there are those who claimed that washing your mouth with Listerine a day before the actual test can lower your chance of getting detected, this tactic is not foolproof.


  • People have claimed that this is an effective tactic of cleaning your mouth from traces of toxins
  • It’s not as expensive as compared to other options on this list
  • It’s very discreet


  • There aren’t any scientific studies on Listerine’s ability to eliminate traces of THC
  • It cannot remove traces from opiates or cocaine
  1. Drink Tons of Water

I would advise individuals who have a high level of exposure to toxins to rely on other detox products for their saliva drug test. As this home remedy is not enough to ensure a 100% passing rate on your mouth swab drug test.

Drink Tons of Water

I did my fair share of research on the capability of drinking water to flush out the toxins in your mouth. While this is a natural and effective way of cleaning the system, here’s my final say on this tactic:


  • There is no need to buy any expensive equipment
  • It’s a natural process
  • It’s very discreet


  • This may take days before your system is cleared
  • It cannot remove traces from opiates or cocaine
  1. Use Toxin Rid Detox Products

10 Day Detox Program

The 10 Day Detox Program is manufactured by Toxin Rid. What I really like about this product is that it is 100% natural, which means that you can rest assured it does not contain any fillers or synthetics. It utilizes minerals and vitamins to safely flush out the toxins from your body.

10 Day Detox Program

Of all the items listed in this post, I find that the 10 Day Detox Program provides you with the best chance of passing any drug test. The products of Toxin Rid focuses not only on cleansing your mouth for the saliva test but also that of your blood and urine.


  • Specifically designed for those who have a high level of exposure to toxins
  • It can cleanse your saliva, blood, and urine
  • It can start taking effect within the first hour after completing the program


  • You need at least ten days to complete the program
  • This isn’t too costly but you would need to spend money on the product

Rescue Mouth Wash

If you ask me, when it comes to ways on how to pass a drug test, I would always opt for products that have been scientifically proven to not only alter your oral fluids but also cleanses it completely from any toxins. Of course, it is important to keep in mind that both sides would have their fair share of pros and cons.

Toxin Rid Rescue Wash Mouthwash

For my last advice, Toxin Rid’s Rescue Mouth Wash is my top choice for passing mouth swab drug tests. As compared to the previous points, such as brushing your teeth, chewing gum, and sucking on sour candies, a mouth wash that is specifically designed to pass an oral drug test is your best bet.

A general description of the product is that it is a specially formulated mouth wash that can rid your mouth of any detectable drug toxins left even after brushing your teeth or chewing on either gum or sour candy. It is only a small ounce of a bottle, which makes it quite discreet to bring anywhere.


  • Personally, I find that the Toxin Rid Rescue Mouth Wash provides an individual with the best chances of passing a mouth swab drug test
  • Toxin Rid offers a money-back guarantee from the manufacturer complete with documentation
  • You can literally use this a few minutes before the test and still pass the test


  • This isn’t too costly but you would need to spend money on the product
  • A bottle only contains one ounce

Where to Buy Mouth Swab Drug Test

Now that I have mentioned all seven ways to pass a mouth swab drug test, it’s time to see if they work. Nevertheless, you can actually buy your very own mouth swab drug test and see if you’re going to get a positive or negative result.

As explained earlier, a saliva drug test consists of a swab that is put on your mouth for the purpose of taking a sample of your saliva to have it tested for the different kinds of drugs. The individual who is administering the test would take it from under your tongue or your gum line. It’s because these are where drug metabolites typically linger.

The cheapest mouth swab drug test is around $10. However, I recommend that you buy the Saliva Confirm 5-Panel Oral Fluid Screening Kit. With this kit, you can rest assured that you’ll be able to detect five drugs in just ten minutes.

This single step test can detect traces of oral metabolites of five of the most commonly abused drugs on the planet. Reading and assessing the results are very easy as well. Furthermore, the indicator utilized by the kit helps decrease any invalid effects. So, there’s no need for any re-testing.

It is easy to use as it only takes one step to generate accurate results. You don’t need a bathroom and it is a non-invasive collection. At the price of only $13.95, you can use this kit to detect methamphetamine, amphetamines, opiates, cocaine, and marijuana.

Frequently Asked Questions

Question: What does a mouth swab drug test test for?

Answer: The most abused drugs that are tested using a mouth swab drug test are as follows: THC, benzodiazepine, barbiturates, cocaine, PCP methadone, amphetamines, ecstasy, codeine, hydromorphone, morphine, LSD, and alcohol.

Question: How long do drugs stay in your saliva?

Answer: THC-COOH stays in your saliva for 30 days after consumption; benzodiazepine and morphine stay for 2.5 days; barbiturates and PCP stay for 3 days; cocaine, alcohol, and amphetamines stay for 2 days; methadone can stay for 10 days; ecstasy, hydromorphone, and codeine stay for 4 days; LSD stays for 5 hours.

Question: How far back does a mouth swab drug test go?

Answer: Do note that the window detection of oral fluid is around 24 up to 48 hours.

Question: Can water dilute a mouth swab?

Answer: While drinking plenty of H2O can help with urine drug tests, this may be different for oral swab tests because your saliva tends to equilibrate every ten minutes, which is why nothing is allowed in your mouth ten minutes prior to the test. With that in mind, any type of rinse won’t guarantee you anything.

Question: How do you pass a mouth swab drug test with dentures?

Answer: I find this to be a tricky question considering the fact that no known scientific study has openly talked about the relationship between false teeth and mouth swab drug tests. Nevertheless, the best answer that I could give you is that these oral drug tests are testing your saliva, not your teeth. With that in mind, whether you have real or fake teeth, it won’t affect the drug test.

Question: What companies use mouth swab drug test?

Answer: Job applicants and employees are legally required by their employer to undergo drug tests. Some of the most popular companies that utilize drug test are as follows:

  • Epic Health Services in Houston, TX
  • Home Depot in Morrow, GA
  • Texas Oncology in Webster, TX
  • Fresh Direct in Long Island City, NY
  • Amazon Fulfillment Center in Phoenix, AZ
  • NXP Semiconductor in Chandler, AZ
  • Tom Thumb in McKinney, TX
  • QVC in San Antonio, TX
  • Lowes in Springfield, MO
  • Orvis in Roanoke, VA
  • Personnel Source in Medford, OR
  • Silverton Mortgage in Atlanta, GA
  • HSS Hire in the UK
  • Amazon in Lakeland and Orlando, FL
  • Fresh Market in Raleigh, NC

Question: Do edibles show up on a mouth swab drug test?

Answer: The best answer I could provide you is that it would always depend on your diet, the amount you have consumed, and your metabolic rate. Whether or not edibles would show up on a mouth swab drug test will also depend on the way you have ingested it and how long since you last ingested it. Nevertheless, the safest time to take the drug test is at least 12 weeks after your last ingestion.

Question: How to pass a mouth swab drug test with peroxide?

Answer: Hydrogen peroxide, which is a mild antiseptic that is typically used on the skin to prevent any infections of burns, scrapes, or minor cuts, can actually be used as a means to pass a mouth swab drug test. All you need to do is to cleanse your mouth using hydrogen peroxide an hour before the actual test.

Question: What color does a mouth swab turn if you fail?

Answer: Most mouth swab drug tests will have panels that tend to saturate when saliva is detected. It will then reveal colored lines that indicate whether or not you have passed the drug test. A negative saliva drug test will show a colored line on the drug panel, whereas, a positive saliva drug test will not.

Final Thoughts

Remember, should you fail your mouth swab drug test, you will be considered guilty of the use of certain drugs. You will be liable and necessary actions will be taken without any further discussion. Do not act aggressively should you fail your drug test.

As mentioned earlier, an employer is legally expected to perform actions should there be any proof that individuals in the workplace setting are under the influence of drugs. The best you can do for now is to seek legal advice.

Nevertheless, you can breathe much more easily as you have options should you be chosen to undergo a saliva drug test in a couple of days. I could not stress enough the need to rely on recommended detox products.

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