How to Use Detox Drinks to Pass a Drug Test


Urine drug tests are the most common type used by employers and legal authorities nationwide, largely because they’re some of the hardest tests to fake. Lipid-soluble compounds (like THC and its main metabolite, THC-COOH) stick around in urine for a very long time, making it difficult to flush the body of undesirable chemicals prior to testing.

Difficult, however, doesn’t necessarily mean impossible; while it’s true that you cannot successfully cleanse your body of THC without abstaining and detoxing for an extended period of time, it is possible to introduce water, electrolytes, and other substances to the body in such a way as to produce a temporary passing result. 

This is the aim of detox drinks, a popular-but-risky way to pass a drug test on very short notice. We tend to prefer to use the substitution method to pass a urine drug screen, but this may not be an option for supervised testing. If this is your situation, a detox drink might be just what you need — but there are some important things you need to know before starting your cleanse.

Here, we’ll break down how to use your cleansing drink of choice to maximize its cleansing power, helping rid your system of THC for the prescribed window and allowing you to produce a clean sample. We’ll also talk about what to look for in a detox drink before wrapping up with a couple of our favorite cleansing beverages for different usage levels. 

Before We Begin: A Few Possible Caveats

Before we get into the science of detox drinks and how to use them, we need to make an important clarification: detox drinks will only work to help you pass a urine drug test. They will not be effective at cleansing your system in advance of hair, blood, or saliva tests. Bear this in mind when choosing a detox product that’s right for you and the test you’ll be taking.

Second, detox drinks are similar to other cleansing products in that they won’t be effective if you don’t abstain from cannabis during your cleansing period. Your results will be better the longer you are able to abstain before your test. We recommend at least 48 hours of abstention for moderate to heavy consumers, though more time is always better. 

Finally, you’ll need to drink a lot of water with any detox drink you choose, and we mean a lot of water. Most detoxes ask that you drink a minimum of 32 fluid ounces of water after consuming the drink, but some request amounts as high as 48 ounces. As a general rule of thumb, more water is better (just don’t overdo it and send yourself into hyponatremia, a potentially lethal overhydrated state. It’s pretty difficult to get there, but not totally impossible), and be sure to urinate as many times as you can before you plan to test. 

How Detox Drinks Work

We need to open with an important distinction: it is not possible to truly eliminate all THC and its metabolites from your body in a protracted period of time. The only way to cleanse your body of THC (in the strictest and truest sense of the word) is to detox naturally, which can take anywhere from a few short days to a period of months, depending on how frequently you use cannabis. 

So, if these drinks aren’t zapping the THC from your cells, how do they help you pass a drug test using your own urine? We’ll cover the science momentarily, but the short answer is that detox drinks use a combination of chemical actions in your body to help you produce urine that will test clean during a certain window of time. After this period, you’ll test positive again — the cleansing effect isn’t lasting, but it will get you through your drug test unscathed.

Detox products work by a combination of a couple different mechanisms: first, they dilute your urine, and therefore any THC or its metabolites that might be present. Second, they adulterate your urine with compounds to help mask the presence of THC and give some of your dilute urine its color and chemical properties back. 

Finally, many detox drinks contain compounds that are believed to encourage the flushing of THC from your cells, removing the molecules from the superficial layer of your internal tissues. Note that this only takes place at the surface — your deeper tissues will still harbor THC and THC-COOH for as long as you continue to consume cannabis. That said, it can help improve your chances of testing clean. The effectiveness of these substances is improved by frequent urination.

First & Foremost: Use Exactly As Directed

Even the best detox drink won’t be effective if you don’t follow the instructions. This is because you need to drink not only the beverage itself, but also plenty of water — expect to refill and drink the container 2-3 times before testing per most instructions. 

You’ll also need to give your body the best chance possible to flush THC and THC-COOH from your renal system, which means that you’ll need to pee as much as possible before your testing. We recommend going at least three times between drinking the beverage and testing, but more is always better. 

Finally, be sure to replenish your electrolytes after testing. While detox drinks do contain necessary salts and ions to keep you from suffering the effects of dehydration, you may need to reup your body’s supply, especially if you’re an active person. Avoid caffeine and other diuretics, focusing instead on rehydrating and resupplying your body with necessary nutrients.

Ingredients to Look For

There are many different ingredients that are commonly used in detox drinks. Here, we’ve broken down the most effective and safest by category according to their purpose. The following ingredients are generally considered safe and effective for cleansing purposes when used as directed:

  • Diuretics, or ingredients designed to cause you to urinate more frequently, serve to help dilute your urine while promoting the flushing of THC from surface tissues. These ingredients include compounds like:
    • Caffeine, a well-known stimulant 
    • Ginseng, a naturally-derived supplement commonly used in energy drinks to boost focus — with the side effect of increased urination
    • Guarana, another plant-derived stimulant 
    • Taurine, a compound extracted from the livers of cattle that’s been found to increase energy (and urination, lots of stimulants have that effect) 
    • Niacin, also known as vitamin B3, is often used to dilate blood vessels, invigorate the body, and speed up the body’s metabolism. This is the molecule responsible for the “niacin flush,” or reddening of the skin, that accompanies energy drink consumption in some consumers, and may induce a type of short-lived “head rush” when taken very quickly in large doses.
    • Cranberry extract. While it’s been shown to be ineffective at treating a UTI, cranberry may help cleanse the urinary tract of non-bacterial chemical elements and assist in flushing “surface” THC from the body
  • Adulterants, or ingredients included to help replace vital compounds in your urine to compensate for dilution while masking the presence of any residual THC. Many of these compounds are contained within your urine naturally; these ingredients are intended to put back together the chemical profile that’s distorted through the dilution process.These may include:
    • Creatine, a precursor to creatinine, a compound found in urine naturally and one of the most important markers for a testing lab that a sample is genuine and untampered with
    • Vitamins B6 and B12 are often used to return color to diluted urine, as are folate, or vitamin B9, and thiamin, or vitamin B1
    • Biotin, a compound necessary for healthy hair, skin, and nails 
    • Zinc, chromium, selenium, and manganese are trace minerals typically found in urine

A Cautionary Note About Herbal Extracts

While most herbal supplements are safe for consumption when used as directed, it is wise to be aware of the herbs included in your detox of choice and any interactions they could have with medications you take. For example, burdock root extract can be very helpful for flushing the kidneys, but could cause a reaction in people allergic to daisies or chrysanthemums. Milk thistle extract works well to protect the liver and soothe potential digestive discomfort resulting from using a detox drink rich in minerals, but could reduce the effectiveness of estrogen-based birth control pills. 

As with anything else, it’s important to consider the potential risks an ingredient might carry for you before making an informed decision. There are entirely too many potential ingredients and corresponding interactions for us to list here, but we’d like to present a few general precautions to minimize any risk of a negative interaction.

Firstly, please exercise caution with detox drinks if you are currently taking any diuretics or blood pressure medications. This is because detox drinks are quite diuretic on their own and could cause dehydration when combined with a similar medication. Secondly, be cautious if you are pregnant or breastfeeding and considering a detox drink. Most ingredients are fine, especially for one-off use, but may cause problems for high-risk moms or those with sensitive systems. 

We don’t mean to incite panic or scare you off of buying that detox, we just want to encourage you to be mindful of what you put into your body. The risk of adverse side effects is vanishingly small, but still non-zero; consequently, we feel we owe it to you to mention it as you consider the right detox drink for you.

The Day Before Testing

On the day before you are scheduled to take your test, make sure to eat sensibly and keep yourself amply hydrated. We recommend skipping out on fatty or fried foods during this time, opting instead for plenty of fiber and protein. Leafy greens, grilled chicken or fish, fresh vegetables, and fiber-packed root veggies like sweet potatoes or beets are good choices.

You’ll also want to take any pre-cleanse pills that were included with your detox on this day. Taking the pre-cleanse pills will help prime your system for tomorrow’s detox and remove residual THC from your system. Take them as directed with plenty of water — if you need something with flavor, try to opt for tea, coffee, or juice over sugar-packed sodas. 

Immediately leading up to your test, we advise avoiding strenuous exercise. If you already have an established exercise habit, keep it up! However, if you’re a habitual couch potato, now is not the time to take up jogging. This is because too much fat-burning during this time can cause THC trapped in your body’s fatty tissues to return to the bloodstream, becoming detectable in your urine. To avoid this, keep novel exercise to a minimum in the few days before testing.

The Morning of Testing

On the morning of the big day, make sure to have a big glass of water or two with your morning coffee — though perhaps limit yourself to one cup today. Keep breakfast low in fat and high in fiber (egg white veggie omelet, perhaps?) and wear comfortable clothes. Don’t fast until your test; not only will depriving yourself of food not help your chances of passing, but you’ll be cranky and more prone to unnecessary anxiety. 

Be sure to take your detox drink with you! You may remove the label if you’d like, or place it in a large water bottle or thermos for discretion. Make sure that you know the time and place you are supposed to take your test, as the next steps will depend on the timing.

Hours Before Testing

Since detox drinks give you a window of time during which you will test clean, time is of the essence. Your detox will be most effective three hours from the time of consumption (unless otherwise specified), with the window of effectiveness extending for up to 5 hours. For this reason, we advise taking the drink as close to 3 hours from your test as possible.

When it comes time to take the detox, down the whole thing as quickly as you can. We don’t mean you have to chug it (unless, of course you want to), but try to finish the bottle within 15 minutes or so. Then, immediately fill the bottle with water and drink that — again, doing your best to finish it within about 15 minutes. 

After that bottle is gone, go ahead and fill it up again — and don’t worry, you can take your time drinking this one. You’ll probably need to urinate pretty quickly after finishing the first bottle of water, so don’t fight the urge. The more you are able to go before your test, the better off you’ll be. Stay hydrated leading up to your test by refilling that water bottle frequently. 

The Test Itself

When collecting your sample for testing, use urine from the middle of your stream, as opposed to the beginning or the end. This minimizes the risk of trace THC ending up in your sample and gives you the best chance of providing a fully clean sample and passing your drug test. 

To do this, allow yourself to urinate for about 4-6 seconds before beginning to collect the sample. Once you’ve obtained an adequate specimen, clean up the cup (it’s just polite) and head out, being sure to wash your hands thoroughly. 



A detox drink like Mega Clean or XXtra Clean from TestClear can help you pass your drug test with flying colors, but these beverages aren’t bulletproof. Make sure that you follow the directions on the product that you choose, abstain with plenty of time to spare, and keep yourself well-hydrated throughout the process. 


Does Synthetic Urine Work? TestClear Powdered Urine vs. U Pass 8.4

When we need to pass a urine drug screen, our personal favorite method to ensure a clean result is substitution, or using a sample of clean urine instead of our own for the test panel. This method is simple, straightforward, and nearly foolproof — unless, of course, the powdered urine you’re working with is subpar. There are oodles of substitution products available on the market, but many of them leave you at risk of failing your test.

So, how do you screen the “good stuff” from the rest?

Today, we’ll compare two of the most popular synthetic urine kits available: U Pass 8.4 Synthetic Urine Kit vs. Test Clear Powdered Urine Kit

We’ll examine and compare the following so you don’t have to:

  1. ingredients and components of both kits;
  2. compare experiences from real users to determine which kit is the safest for your drug testing needs.

A General Note on the Drug Testing Industry

As we compare these two synthetic urine kits, we’ll need a certain level of understanding of the relationship between the drug testing industry and the companies creating products designed to “spoof” those tests. These two fields are locked in an arms race of sorts, a self-sustaining cycle that creates an ever-evolving line of products. As testing companies create tests capable of detecting things like dilution or substitution, cleansing companies reformulate their products to meet the requirements of the new tests.

Because the two industries are at constant war with each other, the product that worked last year might not work on Tuesday of next week, and what works for a small lab in Poteet, TX might not fly at a major testing lab in San Diego, CA. Your odds are affected by where you are and the type of test you’ll be taking, but ultimately, it’s still a bit of a gamble every time.

With that in mind, it’s important to choose cleansing and substitution products that are on the cutting edge of drug testing technology. Using the best products available will give you the best chance of passing your drug test, even accounting for all other factors.

What ingredients are used in TestClear vs. U Pass 8.4?

The U Pass synthetic urine kit has been widely used by many people in need of a clean sample for years. On the surface, this might seem like a good thing — it’s worked before, right? And, in some ways, having a lot of experience gives a company an advantage. However, in the drug testing world, that’s not quite all there is to it — sometimes ingredients once thought of as safe can become problematic and put consumers at risk.

This can become problematic if an ingredient in a cleansing or substitution product is picked up on a new version of a drug test and perceived as a drug, a drug metabolite, or a sign of dilution or tampering. In these instances, the sample would be considered contaminated and would result in the potential loss of a job or other disciplinary action.

We suspect (though it’s impossible to know for certain without more details about the specific ingredients of U Pass) that this phenomenon is related to the recent reports we found of U Pass not working for consumers. One report even said that their use of U Pass returned a result that was positive for heroin (yikes!), which is much more difficult to explain away than a little THC.

While it’s unlikely that the U Pass kit would yield this result in every single drug testing panel available today (there are many, many different brands on the market, and it takes some time before everyone gets caught up to the same level of detection), it is a sign that this product has likely outlived its usefulness and needs a reformulation in order to be effective.

This highlights an important issue in drug testing: the need to stay current on technology and products. Because the landscape of drug testing and cleansing products is ever-evolving, the thing that worked a few months ago might be entirely obsolete now.As a consumer, it is crucial to make your decisions based on current information, not a batch of reviews from two years ago.

How Reliable is TestClear vs. U Pass 8.4?

There is a chance that using a synthetic urine kit from U Pass would help you pass a drug test today. However, that chance becomes smaller and smaller as time passes and more and more of the drug tests used by employers become more advanced. Over time, the U Pass 8.4 kit will be entirely obsolete, and it seems from online reports that its time as a reliable way to achieve a passing result has expired.

The TestClear Powdered Urine Kit, by contrast, has a proven track record (as of the time of this writing) of success in producing passing results by substitution. It is formulated using the same components used in the synthetic urine used to calibrate drug tests, guaranteeing a clean result (unless the sample were accidentally contaminated during mixing or storage — unlikely, but still worth mentioning).

Final Thoughts on TestClear vs. U Pass 8.4

We also find the TestClear kit to be a bit more user-friendly than the U Pass kit. Unlike U Pass, TestClear’s Powdered Urine Kit is mixed when you are ready to use it, then heated using those adhesive toe warmers popular in colder climates during the winter. Unlike the microwave heating used with the U Pass kit, this method ensures that your sample won’t get too hot — the sample will be warmed slowly by the warmers to body temperature. This method produces an even heat that does not compromise the integrity of the compounds within.

We also rather prefer the plastic vial included in the TestClear kit, as opposed to the flexible plastic bag utilized by U Pass. While there are certain perks to the bag (it’s a little easier to conceal under clothing), it’s not the easiest to dispense, which can lead to spillage during testing. The plastic vial, on the other hand, is much easier to use and allows for extra filling to ensure an amply sized sample for your test, further averting suspicion.

How do TestClear vs. U Pass 8.4 Retailer Support Compare?

Finally, there’s the issue of the sellers themselves. It’s true that U Pass is available from many different retailers, often at a discounted price. However, the old adage “you get what you pay for” is especially true of drug test cleansing products — you may not receive the kit by the day you need it, and it may not help you pass your test even if it does arrive in time.

TestClear, by contrast, ensures guaranteed delivery on all expedited shipping orders and takes the extra step of guaranteeing the efficacy of the products they carry. This creates a more secure purchasing experience and adds an extra layer of protection that other sellers simply can’t offer. We feel that this is important, especially in the high-stakes world of drug testing.

Discount Code for TestClear Powdered Urine:

Ultimately, while it is technically true that you could chance it and try your luck with the U Pass kit, why take the unnecessary risk? With the TestClear Powdered Urine Kit, you can ensure a passing result with ease and simplicity. While the upfront cost may be a bit higher for the TestClear kit, we feel the peace of mind is more than worth the extra investment. You –and your career — are worth it!


Do Drug Detox Drinks Work? TestClear vs. Herbal Clean Qcarbo32

When searching for a reliable drug test cleansing product, navigating the crowded field of search results can be difficult. There are hundreds of products out there that claim to work, but many of them aren’t as effective as their advertising makes them out to be.

Here, we’re looking at Herbal Clean Qcarbo32, a popular cleansing drink available from a variety of retailers. We’ll compare it to the two most comparable products available from TestClear, Mega Clean Cleansing Drink and XXtra Clean Cleansing Drink. This comparison is based on a combination of research into the product formulations and ingredients, our personal experience, and a sampling of reviewsfor both products from verified users.

A General Note On the Drug Testing Industry

First, we need to talk a bit about the drug testing industry and its relationship with cleansing companies. The two fields are locked in a sort of arms race with one another: as drug test cleansing companies create products that can fool the tests, more advanced tests are created. This spurs the creation of more advanced cleansing and substitution products, and so on in a self-sustaining cycle of enhanced precision and more detailed formulas.

In some ways, this is a good thing — all that competition between the two industries spurs advancements in both of them. Furthermore, research into the development of new products enhances our understanding of the science of drug testing, improving our access to empirical information on the subject. However, it’s not so great from a consumer standpoint. This ever-evolving landscape makes it so that the product that worked last year might not work next week. When choosing a cleansing or substitution product, it’s crucial to make your decision based on the most current information available.

Do cleansing drinks remove THC?

To thoroughly and fairly compare cleansing drinks, we need to start by talking a bit about how they work. There are a couple of primary ways that urine test cleansing drinks work: superficial cleansing of tissues, dilution of urine, and masking the presence of THC. There are some drinks out there that only work using one or two of these mechanisms, but the best cleansing beverages use a combination of all three processes for a more reliable clean.

There are different ingredients that are often included in cleansing beverages to serve different purposes. These ingredients vary from manufacturer to manufacturer, but there are some that you can pretty much count on being in your cleansing drink. These include B vitamins, which are used to help flush THC from surface cells of the body, as well as to add color to the urine and ensure that it meets dilution standards.

Secondly, cleansing beverages tend to utilize a blend of herbs, proprietary or otherwise, that support the goal of producing a clean sample during the specified window of time. These may include things like dandelion, burdock, or turmeric root extracts to help flush superficial fat cells of THC and its metabolites, along with diuretic compounds like uva ursi leaf and juniper berry extracts that encourage more frequent urination.

Finally, these products contain essential nutrients and electrolytes like creatine and magnesium to help urine retain the necessary concentrations of these compounds to meet dilution standards. They’ll also use vitamins B1 and B2 to improve the color of the urine sample despite its dilution. Niacin is used to help flush THC from urine and tissues and, while it’s effective, it can be toxic in high doses — beware of products containing very high percentages of niacin, and avoid stacking multiple cleansing drinks simultaneously.

What ingredients are used in TestClear vs. Herbal Clean Qcarbo32?

From an examination of the ingredients in Herbal Clean Qcarbo32, there are plenty of ingredients that are considered safe and effective in temporarily cleansing the urine of THC and its metabolites to produce a clean sample, including uva ursi, burdock, turmeric, and dandelion extracts alongside plenty of B vitamins and electrolytes.

Both Mega Clean and XXtra Clean contain many of the same ingredients, though we noticed slightly higher concentrations of many essential vitamins in the Mega Clean and XXtra Clean formulas. We also noted a few extra components in the herbal blend utilized by Mega Clean and XXtra Clean — not necessarily better, just a different approach.

How to use TestClear vs. Herbal Clean Qcarbo32

Qcarbo32 is intended to be used in much the same manner as Mega Clean or XXtra Clean — drink the entire bottle within 15 minutes, then refill the bottle with water and drink that within 15 minutes. With all three beverages, consumers are encouraged to urinate frequently to flush as much THC from their systems before testing to ensure a clean sample.

What’s the TestClear vs. Herbal Clean Qcarbo32 customer experience like? 

When looking at reviews for Herbal Clean Qcarbo32, we noticed a trend across different sellers: for people who had plenty of time to abstain beforehand and were occasional to moderate cannabis consumers, the drink worked well and consistently. However, for consumers with fewer than three days to abstain or a long history of frequent cannabis consumption, the results were less reliable, and more users reported that the drink didn’t quite cut it.

This highlights important points in choosing a drug test cleansing product:  

  1. It’s crucial to find the right product for your level of THC exposure;
  2. A product that works perfectly for someone who takes a few hits before bed at night might not be enough for someone who goes through several joints per day!

Final Thoughts on TestClear vs. Herbal Clean Qcarbo32

We like TestClear because the products they carry are formulated with maximum effectiveness in mind. While they carry products for less frequent consumers (like their 1-day and 3-day detox programs), most of their selection is geared toward helping consumers with heavier usage patterns produce a clean test result. In our experience, this leads to a more reliable clean and better results for consumers.

Aside from the differences between the products themselves, we also noticed a major difference between sellers. While Herbal Clean Qcarbo32 is available from sellers like Amazon and GNC, we noted a significant number of complaints across different platforms relating to shipping, timeliness of the product’s arrival, and pricing. That’s the gamble of online retailers — some are reliable, but many are not. With something as important as drug testing, we feel it’s beneficial to choose specialized sellers over big-box stores.

Discount Code for TestClear Detox Drinks:

By ordering from TestClear, you ensure a couple of things.

  1. First, you are receiving the product you ordered, not a knockoff in similar packaging;
  2. Second, you will receive the product in a timely manner — if you ordered overnight delivery, then you will receive it the next day, guaranteed.
  3. Finally, TestClear stands behind their products in a way that many retailers don’t, meaning that you’re covered in the event that a product doesn’t work out for you.

We don’t mean to imply that Qcarbo32 is a subpar product — it isn’t, and it works just fine for many people. However, it isn’t the most reliable product available, and it may not work for people with less time to abstain or who have used cannabis more frequently for longer periods. For high-stakes drug testing, we prefer to stick to the product line available from TestClear. Test Clear’s cleansing products work reliably, they ship in a timely manner, and they are supported by a guarantee of efficacy when used as directed that’s backed by TestClear.


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