UPass 8.4 Review:
Our Honest Assessment Of This Product

Upass Synthetic Urine review

Last Updated On: January 2020

So, exactly what can you expect from our very honest UPass synthetic urine review?

A whole lot of personal experiences that's for sure. Let's begin with a really quick background of who I really am and what got me into this situation.

The truth is, 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 substance screening for a job the next week.

Dude, I was stressing hella hard! This is where 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 products 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 8.4 Work?

I know it seems crazy, but fake pee is actually a big industry.

Initially, scientists made these products in the lab to help calibrate their own testing equipment. Thanks, guys!

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

The better brands literally have all the chemicals that these screening machines will ever look for (at least for now until they come up with more sophisticated machines).

Besides a urinalysis, there are lots of OTHER reasons you might want to use these products, 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!

It 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.

They provide a clean, but still a realistic alternative for actual pee. With it, 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 products like UPass 8.4.

It 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 unloading all over your own garden.

3. Pranks

scared man getting pranked

Is there anything funnier than messing with your buddies?

Seriously, these products are 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 disgusting stuff.

Also, the person being pranked might be less inclined to go for a full ass-kicking if they know it’s not real.

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 it 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 piss, it is a good substitute because it is almost identical, chemically and physically, to the real stuff.

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.

Liquid solutions like UPass 8.4 are used for that kind of product testing all the time!

What are the ingredients?

Sample bottles

As I said, I’m definitely not a doctor or a scientist. I’m just a dude who knows a thing or two about beating a drug screening.

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 an artificially-made product 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 waste. 

How to Use U Pass 8.4 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 a sample 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 the sample 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 Urine Expire?

Yes, Upass urine expires after 1 year, and you should definitely not take any chances after that.

The problem is that the chemicals will slowly break down, resulting in a sample that is immediately picked up as fake.

You should also avoid using it more than a week after mixing because the water will slowly evaporate and increase the concentration.

Frequently Asked Questions

What temperature does U Pass need to be heated to?

U Pass needs to be heated to a temperature of between 94 and 102 degrees for it to match the average human body temperature range. At the test lab, this will be one of the first things that will be checked, and anything beyond this range will fail.

Can you reheat U Pass?

Yes, you can reheat U Pass to make sure that it’s at the right temperature before you use it. However, you should avoid doing this too many times as it can cause some of the water to evaporate and create a very high concentration of the ingredients.

Does U Pass include a temperature strip?

Yes, U Pass includes a temperature strip which is pre-attached to the sample bottle. Make sure you’re familiar on how to read the piece before you head for the urine test, as you need to quickly check it for the right range before you submit your sample.

Will U Pass go bad?

Yes, U Pass will go bad, and there is a use-by date printed on the packaging. However, once the package has been opened and heated once, it’s best to use it within a few weeks as the concentration of the sample can start to decay.

Can you freeze U Pass for storage?

Yes, you can freeze U Pass for storage, and it’s one of the better ways to store it if you don’t plan to use it immediately. However, it’s best not to defrost it more than a couple of times as this can change the chemical balance and increase the risk of a failed test.

Can you buy U Pass in retail stores?

No, you cannot buy U Pass in retail stores, and if you do see it, then be very careful about its authenticity. The best thing to do is only to get it directly from the manufacturer as this is the only way to guarantee you’ll get the real thing.

Does U Pass smell disgusting?

Yes, U Pass smells disgusting, and it’s a vital feature of the product. Without this smell, it would be an indication that there wasn’t the right mix of urea and uric acid.

Does UPass 8.4 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 - Quick Fix

When it comes to urine product, 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.

About the Author Anna Miller

Anna is a content writer, blogger, and entrepreneur. When she is not spending time managing and supervising her business, Lindsley's Lumber, Anna creates content for her synthetic urine website. Aside from being an entrepreneur and blogger, she is also a pet lover, loves to cook and maintain her home garden. You can find out more about me here.

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