How to Pass a Drug Test in 24 Hours (Urine, Hair, Saliva, Blood)

We’ve all been there: you’re wrapping up the interview for your dream job, and it’s going perfectly.  Until—record scratch—the interviewer says something like, “We’d like to extend the offer pending a required drug screen. Please report tomorrow for your drug test.” You smile confidently and agree, but on the inside—yikes! Fortunately, you have options available to you.

If you have longer than just 24 hours to pass a drug test than your options become a lot wider and more accessible with a little more time. For some methods we’ll discuss below, like how to pass a hair follicle drug test in 24 hours, are less damaging when you have a wider window for detoxification.

While it’s true that there’s no cleansing program that can totally cleanse all the fatty tissue of your body within 24 hours (the primary goal for passing a urinalysis, one of the most common drug screens), there are products available that can provide you with a small window of time during which you’ll test clean.

If you’re taking an unsupervised urinalysis, the solution is even simpler: use this kit to provide a guaranteed clean sample. There are even options for short-notice hair testing, which we’ll discuss in detail here. No matter what test you’re being subjected to, there’s a way to get clean in time!

Detoxing for a Drug Test: Know What You’re Up Against

In order to effectively detox the part of your system being tested, you’ll need to know what kind of test you’ll be subjected to. After all, clearing your blood won’t help you pass a urine screen, and flushing your system won’t save you from a hair follicle test. You’ll need to know what type of screening you’re up against before you can cleanse your system properly.

Sometimes it can be difficult to determine what type of drug test your potential employer plans on having you take. The majority of major businesses use the tried and true standard piss test to determine if THC is lingering in your body. A urine drug test is typically administered for a new job 75% of the time. After that typically comes hair follicle drug tests, blood tests, and at the bottom of the list, saliva drug tests.

With any of the detox methods, we’ll discuss below, it’s important to stop consuming cannabis immediately. It may seem obvious, but you want to keep from introducing any more THC molecules to your system, which could recontaminate you and lead to a positive result.

How Long is THC Detectable in the Body?

How far out your drug test will be able to detect THC in your system is going to depend on the type of test.

First Time User 1-2 Times a Month 3-5 Times a Week Daily Use
Urine Up to 1 Week 2 Weeks – 4 Weeks Up to 2 Months Up to 3 Months
Hair Unlikely 1 Week – 3 Months

1 Week – 3 Months

1 Week – 3 Months

Blood 6 – 24 Hours Up to 1 Week Up to 1 Week Up to 1 Week
Saliva

First 24 Hours

First 24 Hours

First 24 Hours

First 24 Hours


How to Pass a Mouth Swab Drug Test In 24 Hours

A mouth swab is one of the easiest tests to pass, especially on short notice — some mouth swag tests don’t even test for THC! But, don’t ask your administrator what the specific mouth swab drug test you’re taking takes into consideration. That would seem a little suspicious, no?

Abstention for a day or two clears THC from saliva naturally and easily (provided you brush your teeth like normal!), but you can accelerate this process in a few ways: first, consume high-fat foods. THC is lipid-soluble, meaning it binds to fat molecules so fatty foods can help make THC make a quicker exit from your mouth.

Second, brush brush brush! You’ll want to combine good oral hygiene with vigorous mouthwashes (alcohol binds to THC as well, but be careful not to use an alcohol-based mouthwash right before the test!). To make sure you pass on short notice, use this mouthwash a few minutes before your swab for an extra layer of protection; it cleanses any lingering undesirable chemicals in time for a short-notice mouth swab.

Toxin Rid Rescue Wash Mouthwash Product Review

How to Pass a Blood Drug Test In 24 Hours

Blood tests also have a fairly short window of detection, as THC usually only lasts for a few hours in the bloodstream. It’s also quite expensive and the sample needs to be sent off to a lab for testing, so for these reasons, it’s not a very popular drug test. That said, some companies do still use it (especially immediately following a workplace accident), and there’s a chance you could have to take one.

Using a 10 day program can help clear your system more quickly, though it helps if you have more than 24 hours to prepare. As long as you have a full 24 hours to abstain, your blood will likely test clean—blood tests take a “snapshot” of the last few hours, but they don’t indicate habitual cannabis consumption. However, if you’re subjected to a blood test, you might be asked to take a urinalysis in conjunction with it (read on).

How to Pass a Urine Drug Test In 24 Hours

A short-notice urinalysis is enough to rattle any cannabis consumer, and it’s easy to see why: urine drug screens test not just for THC, but also its main metabolite, THC-COOH, an inactive form of THC. Using an antibody designed to bond with THC and THC-COOH, the immunoassay detects the chemical that gets you high, as well as its main metabolic byproduct.

The bad news is, THC and THC-COOH can linger in the body’s fatty tissue (they’re lipid-soluble, remember?) for months in heavy cannabis consumers. This means that cleansing your tissue of all THC completely within 24 hours is, unfortunately, impossible. That said, there are two reliable ways to beat a urine screen with little to no notice. The first is the substitution method.

To use this method, purchase a urine kit (shown in image below) and keep it on hand for a surprise drug test. Then, the day of your test, mix the powdered urine with water and use the included heater to warm it up to body temperature. The reusable temperature strip will let you know when your sample is between 90 and 100 degrees. Then, use this sample when it comes time for your test!  While this method only works for unsupervised drug tests, it is a surefire way to test clean every time.

TestClear Powdered Urine Kit Product Review

If you have to take a supervised drug test, don’t fret: there’s still another option. You may not be able to totally cleanse your entire system, but you can give yourself a window of time during which you’ll test clean. Take a drink (shown in image below) in its entirety about three hours before you’re scheduled to take the drug screen, then fill the empty bottle with water and drink that as well. If you have time the day before, take the included pre-cleanse pills with 16 oz of water each over six hours. However, avoid taking them within twelve hours of your test.

Mega Clean Cleansing Drink Product Review

Keep drinking fluids in the hours leading up to the test (don’t overdo it, overly diluted samples are also a red flag, but do keep safely hydrated) and make sure the sample you provide for your test isn’t the first pee after drinking Mega Clean. Urinate as many times as you need to beforehand. It’s effective for five hours after consumption, with its peak effect after three hours, giving you a moderately flexible window during which you can test clean.

Passing a Hair Follicle Drug Test in 24 Hours

Since hair tests go back so far (the period tested is only about 90 days worth of hair, but it could theoretically be tested all the way to the ends of the hair shaft) and have such a low threshold for detection, they’re notoriously hard to beat. That said, you do have some options, though we should warn you that your hair will hate you for what we’re about to recommend.

First of all, you’ll need to get a cleansing shampoo like Toxin Rid or Zydot (we highly recommend the combination of both: Toxin Rid before, and Zydot to finish). The three-part cleansing system of Zydot makes for a good final deep clean before the test and restores some strength and shine to the hair, which will be quite dry after all is said and done.

We recommend washing your hair at least 10-15 times with the shampoo, perhaps supplementing with Zydot every 5 washes or so, before you’re due to test. It sounds extreme, but it works. You’ll need to let the shampoo sit on your scalp for about 15 minutes each time before vigorously scrubbing to remove oils and other molecules from the hair shaft. Focus on the scalp, where oils tend to remain.

You can also supplement with vinegar rinses, salicylic acid acne treatments, even detergent washes (your hair won’t like it at all, but it will help). You can also use a bleach or box dye that includes peroxide developer to help remove excess THC, though it would take multiple processes to remove everything through this method. It’s important to avoid re-contamination by contact with things like hairbrushes, linens, and hats that were used on your un-cleansed head. Change all your linens, wash hats, and perhaps get a new hairbrush just for this purpose.

A Quick Note About Drug Testing

If drug testing is a part of the conditions of your employment, you might be concerned about the potential of CBD to cause you to test positive for THC. This isn’t an unfounded concern — however, there isn’t exactly a cut-and-dry way to answer it.

Much of the data we have about CBD is anecdotal, and its potential impact on drug testing is no exception.  There are very few peer-reviewed studies on the subject, and the ones available paint a rather murky picture:  avoiding full-spectrum products containing traces of THC can reduce your risk of a false positive, but that may not eliminate the risk entirely.  A single study (as yet unconfirmed) suggests that even isolate-based products may not be completely risk-free under certain circumstances.

If you are concerned about passing a drug test, you’ll need to consider this potential risk when deciding whether CBD is right for you. To learn more about the science of CBD and drug testing, check out our article for a more thorough discussion of how to minimize your risk of a false positive.

Conclusion

There are a number of ways to pass a drug test on short notice, especially if you’re prepared. If you’re looking for a job or work for a company that is known for random testing, keep a detox product or two on hand to keep you covered at all times. From simple saliva testing to the dreaded hair test, there’s a way to beat any test with just 24 hours notice.

We’re happy to provide our readers with a custom TestClear discount code, simply enter the promo code: ‘TestClear10‘ at checkout to get 10% off of all TestClear detox products!

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How to Easily Pass a Hair Follicle Drug Test for THC

Nearly 8 in 10 US employers require some type of drug screening before hiring, with some continuing to use drug tests over the course of employment. About 7% of these employers use hair follicle testing, one of the hardest types to beat. Hair testing is often used for jobs in airports, casinos, and other higher-security positions. It’s also used by an estimated 10-15% of Fortune 500 companies—hair testing’s prevalence is growing, as it reliably detects regular drug use over a long period of time.

Since the hair follicle test shows use over a period of at least three months (and potentially much longer), it’s notoriously difficult to beat and, as with any drug testing method, abstinence is the best way to pass. That said, if you’re facing an impending hair follicle test, don’t panic! There are ways to beat the test and cleanse your hair of THC in time, without waiting months for it to clear naturally. Here, we’ll discuss the science of hair testing, then break down what works and how to cleanse properly.

What is Hair Follicle Drug Testing?

While many companies stick to the tried and true urine or blood drug tests to check for recent drug use, the hair test is able to detect THC in your system for a much longer time. A human hair stores a long history from when it sprouts, to the moment you decide to get a haircut. This history is also stored in all of your hair including arm and, you guessed it, pubic. This is one of the reasons why you should really think before shaving your head as your last result. More on that later.

A clinician will cut a small sample of your hair with the goal of collecting ~50 strands of hair. That sounds like a lot, but more often than not your administrator will be able to complete this in three very small snips. The sample is typically taken from the back of your head with respect to your classy hairstyle in mind. Again, if you’re bald or have opted to shave your head before your drug test, samples may be taken from other parts of your body.

How Does THC End Up In My Hair?

Your body processes THC and other cannabinoids in complex ways, causing cannabinoids and their various metabolic byproducts to end up scattered throughout the body’s different systems. THC initially finds its way to your hair, or more accurately your hair follicle, through your bloodstream in the blood vessels that supply those follicles.

Here’s where it gets a little bit interesting: THC doesn’t actually stay in your bloodstream that long. It typically only stays there for as long as you’re high (a few hours in most cases, though it can remain detectable in small amounts for up to two or three days in the heaviest consumers). So how does such a short-lived phenomenon yield such a durable record of your THC consumption?

The body breaks down cannabinoids in the blood quickly, but not quite quickly enough—some of the THC molecules find their way into the soft tissue surrounding the root of your hair (keep in mind, all the action is taking place beneath your scalp so far). Some of those THC molecules attach themselves to the cortex, or outer layer, of the hair strand itself, emerging from the scalp as a cannabis-infused hair about 5-10 days later.

How Long does THC Last in my Hair?

When it comes to drug testing, employers typically like to use hair drug tests for their benefits of going further back than urine drug tests and mouth swab drug tests. While technically there is no definitive time frame for how long THC remains in your body, it has been shown through several studies that THC lasts anywhere from one week to three months for THC to completely become undetectable from hair follicles. 

This, of course, is reliant on how often you use THC products, how strong the weed or strain is, your metabolism/diet, your body fat percentage, how often you exercise, and how much you perspire. See our chart below for how the hair drug tests compared to other times of drug tests

First Time User 1-2 Times a Month 3-5 Times a Week Daily Use
Urine Up to 1 Week 2 Weeks – 4 Weeks Up to 2 Months Up to 3 Months
Hair Unlikely 1 Week – 3 Months

1 Week – 3 Months

1 Week – 3 Months

Blood 6 – 24 Hours Up to 1 Week Up to 1 Week Up to 1 Week
Saliva

First 24 Hours

First 24 Hours

First 24 Hours

First 24 Hours

As you can see from the chart above, the only potential benefit of a hair follicle drug test being administered to you is if you are a one-time or first-time user of cannabis. It is unlikely that after a light first smoke sesh you will test positive for THC from a hair test.

This is because these tests were originally designed with their purpose being to catch heavy drug users. However, occasional and daily users are still prone to show up on these tests as they are very accurate. Do note that hair drug tests can determine drug use as far back as twelve months, but typically, will only reach back about the three.


The Science of Hair Follicle Testing

Consuming cannabis in any kind of real quantity (beyond a single puff at a party once in a blue moon) will be detected in a hair test. A hair test is estimated to be 6-10 times more accurate than body fluid testing for drugs, meaning it’s much more difficult to beat than a urine screen or cheek swab.

If you consume cannabis with any kind of regularity, your hair will reveal “bands” of THC indicating periods of usage, resulting in a positive reading. It takes just the tiniest amount of THC to trigger a positive result, too: one picogram per milligram. For those at home who don’t routinely measure on that side of the metric system, a picogram is 0.000000000001 grams.

The only way to beat a hair test is to https://keytocannabis.com/products/old-style-aloe-toxin-rid-shampoo-product-review, or outer part of the hair shaft, a process which is definitely going to rough up the condition of your hair. You should realistically expect some damage before all this is over, though this can be remedied with a few deep-conditioning treatments and a keratin treatment if necessary. Save the restorative processes until https://keytocannabis.com/products/old-style-aloe-toxin-rid-shampoo-product-review, though, as waiting will allow you to strip out as much of the THC as possible with the cleansing shampoo.

We know it’s possible to cleanse your hair of THC, but how can you do this most effectively and, perhaps more pressingly, quickly? You’ll need a high-quality https://keytocannabis.com/products/old-style-aloe-toxin-rid-shampoo-product-review for certain; while we’ll discuss some home remedies, these are not backed by science and should not be used exclusively (also, they’re crazy damaging to your hair!). If you’re going to try them out, use them in conjunction with a https://keytocannabis.com/products/old-style-aloe-toxin-rid-shampoo-product-review.

How to Cleanse the Hair Shaft of THC

So, since THC is stored in the outer cortex of the hair shaft, it is possible to cleanse it of THC. This process involves opening up the cuticle, allowing it to release THC molecules, which can then be washed away. This is the basic action performed by https://keytocannabis.com/products/old-style-aloe-toxin-rid-shampoo-product-review, which work by chemically forcing open the cuticle, allowing the product to penetrate deep into the hair shaft and cleanse it of THC. https://keytocannabis.com/products/old-style-aloe-toxin-rid-shampoo-product-review are designed to penetrate the hair in a way that is minimally damaging, making them much gentler on your hair than DIY options like washing with detergent (yikes!).

The first thing you need to do is stop consuming THC immediately. Don’t add any more THC to your bloodstream to be carried to your hair follicles and into your hair shaft. Second, purchase a cleansing shampoo like https://keytocannabis.com/products/old-style-aloe-toxin-rid-shampoo-product-review and, if you like, a secondary product like https://keytocannabis.com/products/zydot-ultra-clean-shampoo-product-review (shown in image below), and begin a cleansing regimen immediately.

Zydot Ultra Clean Shampoo Product Review

What should your cleansing regimen look like? We recommend washing with the https://keytocannabis.com/products/old-style-aloe-toxin-rid-shampoo-product-review (shown in image below) 10-15 times before your test (this may mean multiple washes per day, but that dream job is worth it!), and then using the https://keytocannabis.com/products/zydot-ultra-clean-shampoo-product-reviewimmediately before the test for a final deep cleanse. You can also supplement your washing routine with the https://keytocannabis.com/products/zydot-ultra-clean-shampoo-product-review—not only will it provide an additional deep cleaning in support of the Toxin Rid, but its three-part system also helps recondition hair after the cleanse, returning some of its shine and improve manageability. This can be a lifesaver, especially if you have chemically – or color-treated hair.

Old Style Aloe Toxin Rid Shampoo Product Review

Boost the Results with Home Remedies

If you want to boost your cleansing routine with home remedies, start by saturating your hair with white vinegar and allowing it to soak for 15 to 20 minutes. Then, use a salicylic acid acne treatment to further cleanse the hair. Finally, lather your hair with one cup of liquid detergent. Then rinse your hair completely, without conditioning (it will be DRY!). You can also color your hair using a box dye or bleach that uses peroxide developer (most do, but avoid direct dyes that don’t use developer and therefore lack the chemical cleansing effect of other colors) to help clear out some of the THC. You can repeat these steps as needed until your hair is cleansed.

It’s critically important to avoid contact between your hair and things like hats, pillowcases, and hairbrushes that could still be contaminated with THC. Be sure to change your pillowcase and linens, as well as use a fresh towel when cleaning so you don’t take the risk of re-contamination. Wash all hats, and perhaps purchase a new hairbrush to use on your cleansed hair.

Think Before You Shave your Hair

It’s common advice: just shave your head!  This is misguided for several reasons: for starters, if they can’t get a sample from your head, they’ll just take it from somewhere else on your body, like your armpit or chest.

Furthermore, assuming you went all in and shaved your entire body, rendering yourself unable to provide a hair sample, you’d most likely be failed on the spot (testing authorities aren’t stupid, after all). Even if you weren’t failed automatically, you’d still be subjected to a different type of drug testing so you wouldn’t be off the hook anyway. Shaving is just not a good solution and can create a new set of problems. It’s much better to stick to cleansing.

A Quick Note About CBD & Drug Testing

If drug testing is a part of the conditions of your employment, you might be concerned about the potential of CBD to cause you to test positive for THC. This isn’t an unfounded concern — however, there isn’t exactly a cut-and-dry way to answer it.

Much of the data we have about CBD is anecdotal, and its potential impact on drug testing is no exception.  There are very few peer-reviewed studies on the subject, and the ones available paint a rather murky picture:  avoiding full-spectrum products containing traces of THC can reduce your risk of a false positive, but that may not eliminate the risk entirely.  A single study (as yet unconfirmed) suggests that even isolate-based products may not be completely risk-free under certain circumstances.

If you are concerned about passing a drug test, you’ll need to consider this potential risk when deciding whether CBD is right for you. To learn more about the science of CBD and drug testing, check out our article for a more thorough discussion of how to minimize your risk of a false positive.

Conclusions

While it’s an intense process, cleansing your hair of THC to pass a hair test is possible! You’ll need to get a https://keytocannabis.com/products/old-style-aloe-toxin-rid-shampoo-product-review for best results and use it frequently before the day of your test. The more washes you can get in beforehand, the better! TestClear offers rush delivery on all their products so you can start your cleansing regimen as soon as possible.

We are happy to provide our readers with a custom TestClear coupon code for all detox products on the site, simply enter code: ‘TestClear10‘ to get 10% off of your order!

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