If you’re trying to pass an upcoming urine drug test, you’ve probably seen plenty of urine substitution kits ranging from synthetic to the “real deal,” powdered and premixed human urine, with lifelike (though that may be a bit generous, given some of the kits we’ve seen) prosthetics or specialized dispensers for supervised tests. There are dozens of products available on the market, but which one will ensure a passing result 100% of the time (when used correctly, of course)?
While the differences between kits may not be immediately evident (or may not seem like a big deal in the face of substantial cost savings or a major time crunch), not all urine substitution kits are created equal. When you’re facing a drug test for something as significant as a new job or the outcome of a legal situation, there’s too much on the line to gamble with inferior products. So how do you, as a consumer, discern which products will help you pass and which to pass on?
Here, we’ll break down the science of urine substitution, discussing the general purpose of these products, the chemical differences between synthetic and human urines, and the risks and benefits of each type. We’ll finish with a brief discussion of our experience with TestClear Powdered Human Urine and why we prefer it to other substitution kits out there.
Selecting Urine Substitution Kits
If you’ve spent any time researching urine kits, you’ve probably noticed something a bit, well, peculiar: the labeling of some products for fetish purposes. Some urine substitutes are marketed as being for the purpose of fetish fulfillment, largely to sidestep regulations that restrict advertising of a product to “cheat” a drug test. We’re not trying to kink-shame (different strokes and all), but a fetish urine kit is not necessarily going to help you pass a drug test.
In a way, this marketing can be helpful, as it can serve as a signal that this is not the right product for you. This is because urine substitutes marketed this way have a tendency to be less rigorously formulated than others. In a way, this makes sense; after all, they’re theoretically marketed towards human urine fetishists and not laboratory equipment, meaning they likely won’t help you pass your drug test.
With this in mind, in our experience it’s a good practice to skip these kits in favor of those formulated with the specific compounds tested for in urine drug tests (more on that in a moment). You need a kit intended to be read by modern drug tests as human urine, not flavored to taste like it.
Science of Urine Substitution: Powdered vs. Premixed Kits
Another difference between kits you may notice is that some urine kits will come premixed, as a liquid, while others will be packaged as a powder meant to be mixed with water soon before your test. Sometimes “fetish kits” are sold premixed, which may serve as a hint when choosing a urine substitution kit: powdered is the way to go.
This is for a couple of reasons, the main one being that, essentially, there isn’t exactly an official regulation stipulating the expiration date of substitute urine in terms of how long it can legally sit on a shelf before being sold. The premixed urine kits lose some of their “freshness,” and therefore raise your risk of your test being flagged for tampering or a false positive.
From a consumer standpoint, this means that a premixed kit purchased at your local smoke shop may have been collecting dust for over a year before you bought it. During that time, compounds in the urine substitute have chemically changed, shifting the molecular profile of the sample and raising your risk of a false positive. This isn’t to say that it’s completely impossible to dupe a test with a premixed kit (depending on its starting composition, freshness, and other factors), but it does raise your risk of your sample being flagged for tampering — thereby failing you.
For this reason, we prefer to stick to powdered urine kits that you mix yourself shortly before taking your test. Since urine doesn’t stick around for days, weeks, or months inside your body, it just makes sense that you should mix your sample shortly before you take your test. So, now that we’ve gotten the major differences out of the way, there’s still one more to discuss: synthetic urine versus the real deal.
Composition of Synthetic Urine
Synthetic urine uses the chemicals usually present in human urine to create a sample that, while not of human origin, contains all the markers read by drug tests to indicate that the sample is legitimate (and clean!). This can be achieved in a number of ways (and each company has their own patented formula for doing so), so no two products will be exactly identical.
Generally, these products contain urea, creatinine, and potassium, magnesium, and calcium chlorides, along with sodium sulfate and ammonium phosphate and/or diphosphate. B vitamins or yellow dyes may be added for color, and chemicals called heat activators that bring the sample to temperature when water is added. A urine substitute formulated this way stands a good chance of helping you pass a drug test, but these ingredients are unlikely to be labeled, meaning there’s no knowing for sure what you’re getting.
To add to the uncertainty, a much simpler formula for substitute urine involves urea, sodium chloride, potassium chloride, and sodium phosphate. The resulting liquid will look and smell very similar to urine (making it an adequate substitute for many experiments and, yes, fetish purposes), but won’t be convincing enough to fool even the most outdated of drug tests.
Composition of Human Urine
Human urine, by contrast, varies from person to person depending on diet, metabolism, and other factors. It’s a complex liquid that contains about 91-96% water and both organic and inorganic substances. The approximate ratio of organic to inorganic solutes (the technical term for stuff dissolved in a solvent — water in this case) is 7:5, or 7 organic molecules to every 5 inorganic molecules.
In this context, organic means simply that the compounds in question contain carbon molecules, while the inorganic particles do not. These chemicals are largely leftover traces from the foods and beverages we consume, but can also contain waste products from cellular metabolic processes. All these compounds combine to create a complex liquid that differs strongly from its synthetic cousins.
Since human urine comes directly from the source, it won’t be missing any of the key markers tests look for to determine the authenticity of the sample. It also won’t contain any “red flags” that might raise eyebrows at the testing site — with human urine, you don’t have to worry about the yellow dye or heat activator raising the alarm that your sample isn’t genuine. This adds a peace of mind to the testing process that no synthetic urine can offer.
Risks of Synthetic Urine in Drug Testing
So, can you use synthetic urine to pass a drug test? The short answer is: sometimes. This depends on a couple of factors, including the synthetic urine that you’re using and the rigor of the test you’re taking.
Through diligent research and thorough examination of the product (and perhaps even direct conversation with the company providing the synthetic urine replacement), you may be able to determine that a product contains all the necessary compounds required to pass a drug test without flagging the sample for tampering. However, that’s a serious amount of work for a regular person to undertake, and it may not fully guarantee a passing result.
This is because drug tests are advancing all the time, getting better and better at filtering out the fakes from the real deal. Drug test companies and the people trying to beat them are locked in a sort of arms race, with each side constantly inventing better products to try to get past the other.
With any synthetic urine substitute, there is always a non-zero chance (however remote) that the sample may be flagged for being fraudulent or having been tampered with. Such a result will trigger an automatic failing result for you, meaning you can kiss that dream job at your perfect company goodbye. While the risk may be numerically small, we feel that, with the stakes so high, it’s notable.
Benefits of Powdered Human Urine
When you use a powdered human urine like the urine substitution kit from TestClear, you can be confident that you will pass your test. We like the TestClear kit for its ease of use — simply add water to the powdered urine in the included plastic vial, then use one of the included warmers to bring the sample to the appropriate temperature for testing. When mixed about an hour before testing, the sample has plenty of time to reach its ideal temperature, and the slim vial is easy to store close to the body to avoid arousing suspicion on the way into the test.
The human urine powder within the kit will reconstitute to create a urine sample indistinguishable from other human urine by modern drug tests. Since the powder contained within the kit is of human origin, you don’t need to worry about the concentration of the compounds within. You can test with your head high, knowing that you will pass every time. Even against the most sensitive of drug testing apparati, TestClear human urine achieves a passing result 100% of the time.
While it is technically possible to pass a drug test using a synthetic urine substitute, choosing and using a product is fraught with unnecessary risks that can compromise your chance of passing. With the stakes of a drug test being so high, we prefer to use the powdered human urine kit from TestClear. Using clean urine of human origin ensures a passing result and grants peace of mind when testing.