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Sub Solution Synthetic Urine Kit

Prank your friends with confidence with the Clear Choice® Sub-Solution. This is 100% effective synthetic urine designed to be undetectable and toxin-free.


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Clear Choice Sub-Solution was launched in 2003, 16 years later this product still thrives as being the best of its class. Clear Choice prides itself for having the best synthetic urine formula on the market.

Their secret urine formula is made from 11 different chemical compounds including uric acid and urea that mimic real human urine and is balanced for pH, specific gravity and creatinine just to mention a few. All Clear Choice Synthetic Urine is BIOCIDE FREE!

It comes with their patented heat activator formula that raises the synthetic urine’s temperature to normal body temperature.

  • 100% EFFECTIVE


  • Totally Undetectable

  • Standard Size Container

  • Toxin Free Synthetic Urine

  • Ideal Heat Source – Raises Temperature within Seconds

  • Unisex for Male or Female Use

*Please use responsibly. These products are to be used in accordance with all federal and state laws.

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You're reviewing:Sub Solution Synthetic Urine Kit

Yes. Once the solution is mixed you have 8 hours to do one of 3 things with it;
1) Use it
2) Put it in the fridge to use in the next 48 hours.
3) Put it in the freezer. (It will keep for up to 6 months)
Once it has been mixed it has a time limit for use. If you have frozen or had the sample in the refrigerator, you should only reheat it once.
You can microwave the Sub Solution for 7 second increments, just be sure you remove the lid.Once you remove the lid you will need to use your product within 8 hours.
If you received a package with less than 6 months of remaining shelf life then we will replace it a week before it expires. You may contact our customer service dept. NOTE: We will only authorize replacements for unopened sealed products that had less than 6 months of shelf life from the date you received it. Expired products shouldn't be used; products effectiveness will have decreased!!
"Take out the heat activator powder and gently tap the vial to loosen the powder. Carefully pour about 1/8 of the powder into the vial's cap, then add it to the urine. Do not pour directly from the vial into the urine! It's very easy to overpour if you do this. Put the cap back on the urine, shake it gently for 10-15 seconds, then check the temperature strip. Repeat as necessary to get the urine to 94 - 100 degrees. Do not add the whole vial to the sample in one go. Do not mix the heat activator in the sample cup. If your starting temperature is low you may need to use the complete vial, but still add gradually **Please be aware** If your temperature strip is not showing a reading, it means your sample is TOO HOT or TOO COLD"
The heat activator will work almost instantly. We suggest giving it about 5 -10 seconds to fully react before adding more heat activator.
Both products are equally effective. They both use the same Biocide free urine formula. The Quick Luck would be better for a random test, as no mixing is required, while Sub Solution could be used for a test that is scheduled and not random, however Sub Solution does not come with heating pads, it only comes with the heat activator.
It is more likely that your sample is either too hot or too cold. Either way it will not show any indication.
You need to determine if the sample is too warm, or too cold. If it it is too cold than you should add more heat activator. If it is too warm, then you need to cool your sample down. So long as the activator is still in a powder state it will still be effective. If the activator is in a liquid or solid state it means that the activator has already reacted with moisture in the air and can no longer be used. You should open the heat activator only when you are ready to use it..
The heat activator will not hold the temperature, it will only bring your sample up to temperature. For this reason it is best that the heat activator is used as close to the time you’re submitting your test as possible. In cold temperatures, it may take longer for the urine to reach its ideal temperature. Warm weather = fast heating, Cool weather = longer heating time required. Plan accordingly.

*Read all information and instructions carefully before proceeding.*

Remove the screw cap from the plastic collection container and fill with lukewarm tap water to just under the cap. The tap water should not be too hot or too cold.

DO NOT dispose of the cap.

DO NOT open synthetic urine vial until ready for use.

DO NOT open heat activator vial until ready for use.

Add entire contents of synthetic urine vial to water in mixing container, screw cap on the bottle and gently shake container until the powder has completely dissolved. (the synthetic urine can be mixed with water up to eight hours before use).

Heat Activator (glass amber vial)

Note that the use of the Heat Activator is optional; its sole purpose is to heat the solution to near body temperature.

Important: If or when concealing the mixing container, never place the container’s temperature strip next to or against your skin as this may lead to a false temperature reading!

For easy pouring; verify that the heat activator content is in a “loose” or “free flowing” granular form. If the granules are in a solid or partially solid form, simply tap the vial against a hard surface, this will break down any clumps and bring the heat activator back to its original granular form.

The principle behind the heat activator is:

The lower the temperature of the solution = the more heat activator will be needed.

However be very cautious as to the amount of heat activator used, you must avoid overheating the solution.

Guidelines to the amount of heat activator needed:

  • If you do not see any temperature indication on the strip, this means your synthetic urine temperature is below 88°F.

  • In this case, we recommend that you carefully add 1/3 of the heat activator into the mixing container.

  • If the temperature on the strip indicates a solution temperature of 88°F to 92°F then

  • We recommend that you only add 1/4 of the heat activator into the mixing container.

Caution: adding an excessive amount of heat activator may overheat the solution; very rarely one will need to use more than 1/2 of the heat activator without overheating the solution!

If the temperature of the solution rises above 102°F, let it cool down by laying the mixing container on the coldest surface available with temperature strip facing up.

Wait until the temperature drops back down within the recommended range of 94°F to 100°F (indicated in green).

After pouring the estimated amount of heat activator, replace and gently shake the contents to completely dissolve the heat activator, (usually takes less than 20 seconds).

After the heat activator granules have completely dissolved, read the temperature strip to ensure that the solution is within the required temperature range of 94°F to 100°F (indicated in green).

If necessary, carefully add a little more heat activator.

Once the solution is in the acceptable temperature range, flip up cap spout of the mixing container.