Synthetic Urine: Everything You Need to Know

Urine tests are the most common drug test used by employers to screen candidates or employees for marijuana use. That’s because it’s cheap to administer and the results are reliable. It’s also one of the most difficult tests to pass. You can use synthetic urine to pass your test, but it’s not as simple as it once was. Here’s everything you need to know about synthetic urine.

There are two reasons why using synthetic urine is not as easy as it used to be. Firstly, it’s possible that you will be closely supervised when giving your sample. The days of disappearing into the bathroom to do your thing are over. That makes smuggling fake pee into your test almost impossible. Secondly, the laboratories that handle the testing have become smarter. They can test a sample and tell if it’s not from a human.

But you can still get away with using synthetic urine if you know which brand to use, how to use it and most importantly, when to use it. Luckily, we’ve got all the information you need to answer these questions.

When Is It a Good Idea to Use Synthetic Urine?

everythiing you need to know about synthetic urine

Labs use synthetic urine to calibrate their tests for normal readings.

Laboratories actually use synthetic urine to calibrate their equipment. So if you use it, you should have no trouble passing your test. However, it’s not always a good idea. There are certain situations where using it is more likely to get you busted.

To figure out whether fake piss is an option for you, ask yourself the following questions:

  1. Will the test be supervised?

Obviously, if you know someone will be watching you, it’s not a good idea. Unlike your own pee, which comes right out of a warm body, synthetic urine requires heating to make it look authentic. And depending on which product you use, you might need to warm it up to the right temperature just before you hand it over. Unless you can smuggle a microwave into the bathroom, and use it without attracting attention, you can’t use fake piss.

  1. How closely will you be supervised?

Perhaps there will be someone in the room with you, but they won’t make you strip naked. Or even pull your pants down to your knees and hold your shirt up. In this case, there are ways and means of concealing your sample. You could hide it in your underwear or use a fake penis. This will also ensure that the sample is warm and has a better chance of avoiding suspicion.

  1. Is the synthetic urine you’re using reliable?

There are plenty of options out there but you need to make sure that the brand you chose will pass the test. Remember that drug companies know all about synthetic urine and they know how to test for it. Products that worked in the past may not work anymore. If you’re researching products on the web, check when they were reviewed. If it was more than a year ago, look for a newer product.

  1. Could you pass the test without it?

If you knew about the test well in advance and you’ve been following a detox program, you might not need it. You can always get a home test to check your results beforehand. But, if you’ve used marijuana even a few days before your test, detoxing and using a masking product won’t be enough to ensure you pass. In this case, synthetic urine may be your only option.

Depending on how you answered these questions, you’ll know whether you can safely use synthetic urine to pass your test. Of course, a lot depends on the quality of the product you use. To understand why this matters, you need to know more about how urine tests work.

How Do They Test Your Urine Sample?


Various chemical processes come into play with different drug tests.

Here’s the complicated bit. The first thing a lab will do is use a dip strip on your sample. This is called an EMIT (short for enzyme multiplied immunoassay technique). It’s used to detect the presence of metabolites and proteins in urine. It produces a colour spectrum that’s compared against one generated by a clean sample. If this result is positive, the sample is sent for further testing.

The next stage is a GC-MS (short for gas chromatography-mass spectrometry). It’s a very sensitive test and the results produced are a reliable indication of marijuana use. But, if you can pass the EMIT test, you don’t need to worry. A GC-MS test is expensive, which is why the cheaper EMIT test is used first.

Checking for Adulterated Samples

Before they test your sample for evidence of marijuana, the labs will check it for evidence of tampering. These are some of the things they look at to determine your specimen is unadulterated:

  • pH: The normal pH range for urine is between 4.6 and 8. You can err slightly on either side of this. But, if it’s way outside of this range, they’ll suspect it’s been messed with.
  • Specific gravity – The normal range for specific gravity is 1.005 and 1.030. Anything outside of this range is a sign that the urine has been diluted or tainted.
  • Temperature – This one is pretty obvious! Your own pee is warm because it comes from inside your body. Normally between 90 °F and 100 °F (or 32-38 °C). If it feels much warmer or cooler, it’s a dead giveaway.
  • Creatinine levels – This is a by-product of creatine; an amino acid contained in muscle tissue and found in urine. Anything less than 15 mg/kg of bodyweight is a sure sign of dilution.
  • Uric acid – No uric acid or no creatinine indicates that the sample is not from a human.
  • Glutaraldehyde – Some synthetic urine products contain this substance. Unfortunately, it’s not normally present in urine. That’s why it’s so important to check the reliability of the product you use.
  • Nitrate – Like Glutaraldehyde, nitrates shouldn’t be present in urine. But some synthetic urines use it to oxidise the THC in your system. Instant fail!
  • Urea – If your sample doesn’t contain this – it’s not the real thing.
  • Colour and odour – Drinking a ton of water to dilute your pee seems like a good idea. But if you take it too far, it won’t look or smell right and that makes it suspicious. You could try taking some b-vitamins to add some yellow colour to it.

As you can see, passing a urine test is about more than just submitting a clean sample. There are a lot of things that can give you away! If you’re still determined to use synthetic urine, there’s one last thing you need to consider. Where to hide it!

How Can You Sneak It Into the Test?


Whether you can sneak synthetic urine into a drug test depends on how closely you’re being watched.

You’re going to have to get creative with this. Try to find out as much about the testing procedure as you can. Obviously, if you’re going to be supervised, you’ll need to come up with a way to smuggle it in and use without raising suspicion. Just doing a Google search should help you come up with a clever solution to this scenario.

If you won’t be supervised, you could try some of the following:

  • Tape the bag to your inner thigh. It’s not really creative, but it does work.
  • Wear two pairs of underpants. Keeping the sample in between them will also ensure it’s close to your actual body temperature.
  • In your bra. A sports bra would be more comfortable for hiding your sample and again, it will keep it warm.

There are probably a hundred different ways to do it, but you get the picture. Two things are important here. First, you need to make sure that you can keep the sample at the right temperature and secondly it mustn’t be easy to find. If there’s any possibility that you will be patted down before the test, or have to take your pants down and lift your shirt up, you’ll have to be really clever about concealing it.

Everything You Need to Know About Synthetic Urine: Best Products

Sub Solution

Sub Solution is a recommended synthetic urine for passing drug tests.

Now for the information you really want. Below is a list of synthetic urine products that are the most reliable currently on the market. They have helped thousands of people pass their tests, so you can use them with confidence.

Sub Solution

This synthetic urine tops the list as one of the best products on the market. What sets it apart from the competition is the heat activator formula that comes with it. It’s a powder that you add to the urine to make it the right temperature to pass for real urine.

This is much more reliable than using a heat pad or a microwave. It’s easy to overheat your sample using these methods. It’s also more discreet. Surprise tests won’t catch you off-guard either. If you have Sub Solution on hand, it won’t take you more than a minute or two to prepare a sample.

You normally only need about half of the heat activator powder to get the right temperature.  And it comes with a temperature strip to you can test it before you hand it in.

It also behaves like real urine. It has the right colour, the right smell and it foams slightly when you shake it up—like real urine. Because of this, your sample won’t look suspect and you’ll avoid any further testing. It contains 11 compounds including urea and uric acid; two important compounds that are found in human urine. Without them, the lab would know that it’s fake right away. And just like real urine, it’s balanced for pH, specific gravity and creatinine.

Clear Choice, the company that manufactures Sub Solution, first released it in 2002 and it remains one of the best-selling synthetic urines. That’s why they’re confident enough to back it up with a 200% money back guarantee.

Purine Powdered Urine Kit

Purine is another great option when you need fake urine. Although it doesn’t come with the handy powdered heat activator you get with Sub Solution, it still has everything you need to help you pass your test.


Need to pass a urine test? Purine Powdered Urine Kit can help.

It comes with an air activated heater, which takes between 20 -40 minutes to heat the vial up to the right temperature. A highly accurate, reusable temperature strip is included, so you can test it several times to make sure the temperature is correct. Like Sub Solution, Purine smells and behaves like real pee.

You can add an extra vial to the kit at checkout. This is useful for experimenting before the day of the test so that you know how to use it properly. There’s no substitute for practice. If you won’t need to heat your sample quickly, this is definitely a good option.

Quick Fix

Like Purine, you’ll need to use a heating pad or a microwave to heat it up for about 45 minutes beforehand. It has all the qualities you find in regular, human urine such as urea and uric acid and the right levels of pH, specific gravity and creatinine.

But unlike Sub Solution and Purine, it doesn’t smell like anything. Normally, that wouldn’t be a problem. Who likes the smell or urine anyway? But when it comes to a drug test, you want to avoid anything that will make your sample look odd.

Other Brands

There are plenty of other brands available, such as U pass, Magnum Detox, P-sure and Clean Stream. Some are more expensive than others, and some are more reliable than others.

Whichever one you finally decide to use, make sure you do your homework first. Read reviews, ask around, and if possible, try them out before your test. There are a lot of good products out there, but some are just a waste of money. Make sure you don’t buy the latter.

A pee test can be one of the most difficult tests to pass, especially for frequent or heavy users. If you use a good quality synthetic urine, you won’t have to worry. Concealing it properly and making sure it’s the right temperature will help you avoid suspicion. It can be a nerve-wracking experience. Make sure you work out a strategy so you nerves don’t get the best of you.

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