U Pass 8.4 Synthetic Urine:
Our Honest Review...

Upass Synthetic Urine review

This review was last updated February, 2018.

Okay, you got me, I like a good party! But then, who doesn't?

Nothing too crazy (uh, most of the time), but I’ve been known to partake in a good hang session with my friends, have a few drinks, smoke some weed, and have a good ass time.

It’s not usually a big deal, except for one weekend where I found that I was going to have a freaking drug test for a job the next week.

Dude, I was stressing hella hard! This is where synthetic urine products like UPass 8.4 came to mind.

Like everyone else, I had bills and a mortgage to pay and was a good employee, so I didn't want to lose the job I had worked so hard for just because I liked to let my hair down and de-stress during the weekend after a long, hard week.

It just didn't seem fair. But what could I do to beat the fun police?

I decided to do some research. One minute of Google searching later, and I realized that I definitely didn’t have enough time to wait for the THC to leave my system (website said it could take anywhere from five days to three months!), and I knew I didn’t want to try some crazy supplement that promised to detox my whole body in 24 hours (sounds kind of shady to me).

After looking at my options, I figured using synthetic urine or fake pee was my best choice.

man on a computer

I decided to try a few brands at home to see which one gave me the best results. No way was I going into that test without totally trusting my product.

I looked online and found a few different brands such as U-Pass 8.4 and Quick Fix (read more) to get delivered to my house. 

Because I was deep in research mode, I went out to the head shop to see if they had any recommendations or advice. When I was there, I saw U Pass for sale (not up ass, pervs! It's pronounced like “you pass”).

I bought it, along with some home-testing kits and set out to see which one worked the best.

I was only going to trust my future to a product that I knew was going to give the 'right' result for me and save my job.

How Does U Pass Synthetic Urine Work?

I know it seems crazy, but synthetic urine is actually a big industry. Initially, scientists make these products in the lab to help calibrate their own urine testing equipment. Thanks, guys!

They make it specifically to mimic the chemical and physical properties of normal human urine, which makes it perfect for, you know, passing a pee screening test.

Besides a drug test, there are lots of OTHER reasons you might want to use synthetic urine, scientist or not.

1. Sexual  Fetishes

in bed

OK, this one’s up front because U-Pass is actually labeled as “Fetish Urine.” Look, pee and sex don’t mix for everyone, but I don’t judge what floats your boat! Pee is obviously a biological waste product and contains some impurities and toxins, so some people might not consider it the most sanitary thing on the planet.

Synthetic pee provides a clean, but still realistic alternative for actual pee. With synthetic urine, people can get off, not get sick! It lets you be kinky without being stinky.

2. Animal Repellent


This is actually one of the most common reasons that people buy synthetic urine. Fake piss can stop animals like deer and rabbits from messing with your garden and eating all the stuff that you were going to turn into your dinner.

It acts by marking your garden with 'your' scent and thus drives animals away; using fake pee for this also ensures that your neighbors won't wonder why on earth you are peeing all over your own garden.

3. Pranks

prank button

Is there anything funnier than messing with your buddies? Seriously, fake pee is perfect for dumping all over your passed-out friend or on someone’s clothes. You can still get a laugh without actually having to deal with any pee.

Also, the person being pranked might be less inclined to go for a full ass-kicking if they know it’s not real urine. No promises on that last one though.

4. Alternative Medicine

alternative medicine

As you can probably tell by now, I’m no doctor. If I were, I probably wouldn’t be the kind who recommends pee as a cure. However, there are some medical traditions that do use urine as a part of their practice.

For patients who are just too grossed out by actual pee, synthetic urine is a good substitute because it is almost identical, chemically and physically, to real pee.

5. Product Testing

Products have to go through hella tests to be officially approved and sold. They need something to use in the lab or factory to test products like diapers and waterproof bed covers. Synthetic urine is used for that kind of product testing all the time!

What are the ingredients?

Sample bottles

Like I said, I’m definitely not a doctor or a scientist. I’m just a dude who knows a thing or two about passing a drug test. I’ve tested lots of products (you'll find my reviews here: www.syntheticurinereview.com), and I can tell you that there are quite a few ingredients that go in every batch of fake piss no matter who makes it.

The first is distilled water (duh). Then you’ve got sodium chloride, Albumin powder, potassium chloride, sodium phosphate, urea, and creatinine.

These ingredients are meant to mimic the chemical and physical properties of actual human pee. 

How to Use U Pass 8.4 Synthetic Urine:

  1. Before you take the test, you have to microwave U Pass at home for about 10 seconds. When you actually take the test, the temperature has to be between 94 and 100 °F. They stress this a lot on the instructions. This is obviously really important because piss that comes out cold is going to set off some major alarms.
  2. Close the lid and shake it up! You need to make sure that everything is dissolved and evenly distributed throughout the sample. The temperature strip should read somewhere from 94-100°. If it doesn’t, that means you’ve probably overheated it, and need to let it cool down for a bit.
  3. Once it’s at the right temperature, use the rubber band and hand-warmer to keep the U-Pass at the right temperature. If you put the container somewhere in your clothing, the hand-warmer should keep it at around 100° for six hours.
  4. During the actual test, just make sure that artificial pee is at the right temperature and dump it in the collection cup. The makers of U Pass suggest putting in a little less than the 3 oz they provide so that it’s not an exact even amount, which might be suspicious!

Does UPass 8.4 Synthetic Urine Actually Work?

confused girl

Overall, the reviews on UPass are mixed.

It worked for me when I tried it at home, but I didn’t want to play around with this interview. I wanted to make sure I was using the best product available, simple as that.

That’s why I ended up going with Quick Fix, it had the best reviews overall and worked for me every single time when I tested it at home.

Of course, I passed and you can read more about it here.

And just a little tip, you won't be able to find these products through third-party sellers like Amazon, Craigslist, and Ebay. Your best option would be to buy it straight from the manufacturer or an approved reseller where they sometimes offer sales and discounts for multiple orders.

You can click the button below to buy the official Quick Fix product from an authorized reseller. 


bottom CTA

When it comes to synthetic urine, Quick Fix is easily our #1 choice.

This product has a 99.987% success rate meaning that it gives you the best chance of passing your drug test out of all the options that are on the market today.

Overnight shipping available!

On sale until the end of the month.

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