Does Quick Fix 6.3 Urine Work?
An Honest Review of This Brand

This Quick Fix Synthetic Urine review was last updated in March 2025.

After testing a dozen or so different synthetic urine solutions on the market for a drug test, I finally came across Quick Fix by Spectrum Labs. They’ve been around for years and boast a full money-back satisfaction guarantee on the Quick Fix site. But I wanted to test them for myself.

In this Quick Fix synthetic urine review, I will answer your questions on how this fake pee product works, where to get it for safe use, and how to use it to increase your chances of successfully passing a drug test.

What is Spectrum Labs Quick Fix Urine by Spectrum Labs?

Quick Fix urine is a fake pee sample that you can use for a bunch of different reasons but most common one is to pass drug tests.

The more technical explanation:

Quick Fix Urine is a lab grade quality artificial urine sample. Its “official” use is for calibrating machines that test chemical compounds in real human urine — for medicine and shit.

Of course, these mad scientist dudes can’t be pissing on their chemical testing machines every 10 minutes when trying to do science, so they developed a artificial urine sample to use while calibrating their machines.

Now, people have figured out a way to use this lab-grade synthetic urine sample to get around testing machines in their favour. Thanks, science. What would we do without these lab geeks?

The great thing about using this fake pee formula developed in a lab is that every batch is tested before it ever gets to your door. This guarantees that you’re getting a legit synthetic urine sample every single time for your drug test.

In fact, Spectrum Labs Quick Fix has NEVER failed an actual screening, which is one of the main reasons I use it. Actually, it’s the only reason I use it for passing a drug test.

Why would you take a chance losing your job on a fake pee sample that could potentially change your lifestyle? No thanks to failing a drug test.

And while the biggest market is men, the Quick Fix Urine IS unisex, which means it works the same for both guys and girls.

>> PURCHASE OUR #1 CHOICE FOR SYNTHETIC SAMPLE HERE <<

One of the best parts of synthetic urine is it comes pre-mixed, which makes it easy to use in an emergency urine test. Most of these synthetic urine products are dehydrated or powdered, which can get you busted since you need to go somewhere to mix it up.

Since Quick Fix 6.2 fake pee comes pre-mixed, it only takes about 15 seconds until it’s ready to use for your drug tests.

What are the Uses of Spectrum Labs Quick Fix Urine?

Spectrum Labs Quick Fix Urine has various uses beyond passing drug tests, including as an animal repellent, for scientific development and testing, potential medicinal purposes, and even in certain sexual fetishes.

Although Quick Fix 6.2 fake urine is popular for one highly controversial reason, this synthetic urine test sample is actually marketed for a lot of different uses.

If you want to find out more about these types of fake pee products for passing your drug test, please visit our homepage. But in the meantime, here are some other common uses for the synthetic urine products:

1. Animal Repellent

Is Thumper demolishing all your Mom’s Marigolds? No need to sit up all night with a shotgun — synthetic urine is here!

People often use fake urine as an animal repellent to keep away pests from gardens or patios. Animals smell the human scent, and naturally, avoid the area. This is a technique most critters use themselves when marking their territory.

And Quick Fix Synthetic Urine isn’t any different as it works the same. The best part is that you don’t actually have to keep peeing around your house yourself. You can just buy a bunch of fake pee products and spray it all over your property to get them, nasty buggers out.

2. Scientific Development

People in the lab-created synthetic urine samples to use for medical and scientific testing purposes. By creating this substance in a controlled lab, scientists can get faster and clearer results.

The Spectrum Labs Quick Fix 6.2 and 6.3 “urine” is fresher and freer of toxins, which has a better impact on your results. In addition, it can be balanced for particular pH levels, certain chemical compounds, and other unique characteristics.

This has led to a lot of improvements with the current drug test machines, as well as other medical discoveries.

3. Pee Therapy

Let’s get this out of the way. Quick Fix synthetic urine is NOT recommended for use internally. But – synthetic urine can be used for medicinal purposes aside from a drug test. A lot of people around the world use human urine as a medicinal compound.

For example, in the Indian Ayurvedic process of Amaroli, pee is used for its various health benefits. Human urine has been prescribed by some Indian medical practitioners who follow the Shivambu Kalpa Vidhi for more than five centuries.

4. Sexual Fetishes

Look – it’s not my thing, but who am I to judge. I’m just a dude with an artificial product sample review site. Whether you’re into it or not, you can’t deny that pee is a big fetish for a lot of people.

If you’re going to get kinky, then at least be safe about it. You can use Spectrum Labs Quick Fix 6.2 or 6.3 fake pee to stay healthy while you get your jollies on. Real pee has a lot of toxins and impurities, so by using the best fake piss you can mimic the look and smell of natural urine, but make your foreplay way healthier with fewer germs.

5. Pranking Your Buddies

Everybody loves a bit of toilet humor. If someone says they don’t — they’re lying. I had a buddy in college who thought it was hilarious to piss on other people’s beds.

Now, if he had used fake urine instead – he probably wouldn’t have gotten his ass kicked so many times.

>> PRANK YOUR BUDDIES AT A DISCOUNTED RATE HERE <<

Plus, fake urine is way healthier since it doesn’t have disgusting toxins and chemicals from the human body. It’s just for a laugh dude! You don’t want anyone to get sick. I would only prank your buddy if he can take a joke.

Please don’t do it to a total stranger or you might get your head kicked in.

How Does Quick Fix Synthetic Urine 6.3 Compare to Quick Fix 6.2 and 6.1?

Quick Fix Synthetic Urine 6.3, Quick Fix 6.2, and Quick Fix 6.1 are all highly effective options for passing drug tests, with the main differences being in bottle size and shelf life, and Quick Fix 6.3 introducing a new formula for superior performance.

The only difference between these fake pee versions is that Quick Fix 6.2 comes in two ounces bottle and Quick Fix 6.3 has an option of three ounces. Also, the Quick Fix 6.3 formula has a longer shelf life of about two years.

Quick Fix did say that they have added in a new fake pee formula that is supposedly making the Quick Fix 6.3 and Quick Fix 6.2 versions the superior option in the market. And, outside of the packaging change from the Quick Fix 6.2, there isn’t too much of an improvement on the sample itself as Quick Fix synthetic urine already boasts a 99%+ passing drug tests.

People really can’t ask for more of this fake urine in my opinion.

This improvement from the Quick Fix 6.1 fake pee version is a very good sign for everyone as it just means that you know you’re in the right hands with this brand.

You can also look into the Quick Fix Plus synthetic urine review online and see how many people swear by this fake urine product.

Also Read: Quick Fix vs Urine Luck

How Does Spectrum Labs Quick Fix Work for Urine Tests?

Quick Fix 6.3 synthetic urine from Spectrum Labs is designed to mimic the composition and characteristics of real human urine, making it an ideal solution for passing urine drug tests.

Now, here is the most important part. When you take a drug test (or use any other method for measuring chemicals in the body through urine), you usually use fresh pee straight from the human body that is at the same body temperature.

The makers of Quick Fix 6.1 and Quick Fix 6.2, Spectrum Labs, have created it in a scientific environment to simulate the natural substance of real pee.

This lab process produces a substance that can pass for fresh human urine that is totally balanced for pH, creatinine, urea, specific gravity, and other characteristics of natural pee — ideal artificial urine for a drug test.

Since Quick Fix 6.2 and 6.3 fake pee is unisex, it can be used by both men and women for passing drug tests (which is one of the main reasons it’s considered the best synthetic urine test sample on the market). And one other good thing about it is that the instructions are pretty clear on how to use it, and it is totally foolproof.

The way it works is by warming up the sample to between 90- and 100-degrees Fahrenheit. Each order comes with a bottle of their recipe, a heat pack, a cap, and a body temperature strip.

You toss the fake pee bottle into the microwave, check the temperature, and then cap the pee sample so you can use it exactly during a drug test.

The Quick Fix 6.2 and 6.3 heat pack lets you keep it at the correct body temperature for up to 8 hours, so you’re ready to go whenever you need to take your drug test. 8 hours is normally a working day so that is more than enough time for you to conceal it and prepare for your drug test.

Will The Lab Ever Know?

The lab will never know if you choose a synthetic urine product containing urea, like Quick Fix Urine, which is essential to pass a drug test without detection. A lot of labs have started to test samples to make sure they contain urea. Before, there was no chance you could get caught with synthetic urine — but with this new technology, you have GOT to choose a product that contains urea to pass drug tests.

A lot of product manufacturers CLAIM that uric acid is the same thing as urea. Dude, don’t take that chance. They are NOT the same thing. If a drug test can’t see urea while detecting uric acid in your synthetic urine test sample, the people at the drug testing labs will know it’s fake urine.

They’ll report the sample as non-human (or invalid), and you’ll be slammed. So, make sure you only choose a synthetic urine sample that contains urea for your drug test.

Quick Fix has that covered and is guaranteed to stand up to any drug test which checks for urea in the pee sample. It’s completely untraceable and has never failed a urinalysis drug test. There are a number of Quick Fix synthetic urine review comments out there that back these drug test results up.

So, long story short, Quick Fix Urine does work and will help you get through that challenging urine drug test that you’ve been dreading for weeks.

For more information about how well Quick Fix Urine works, keep reading on. There are a lot more goodies in store for you below.

Do Advanced Drug Tests Work with Quick Fix?

Advanced drug tests may pose challenges for Quick Fix, as they often have stringent requirements that may not be easily met with this synthetic urine product.

While advanced drug testing is uncommon in most situations if you are aware that the test goes beyond the standard five-panel test typically used for pre-employment or on-the-job screening, relying solely on Quick Fix may not be the most reliable option.

Although Quick Fix offers affordability, it is advisable to consider alternative solutions for important drug tests. One option is to upgrade to higher-quality synthetic urine that closely resembles genuine human urine in its chemical composition, such as powdered human urine. Another option to explore is the synthetic urine belt, which allows for discreet and convenient temperature maintenance and the delivery of a realistic urine sample.

By investing in a more reliable solution, you can increase your assurance and enhance your chances of successfully passing an advanced drug test while staying true to your goals.

What Are the Ingredients for Spectrum Labs Quick Fix Synthetic Urine?

The main ingredients in Spectrum Labs Quick Fix Synthetic Urine are urea and uric acid, which mimic the components typically found in human urine and are chemically balanced for pH, creatinine, and specific gravity.

Fake urine has gone through several different formulas as drug test technology has changed over time.

Quick Fix Synthetic Urine Plus 6.3 is the newest formulation of the world-famous patented premixed laboratory urine. 

These people keep up with drug testing labs trends (much-appreciated science people). The formula is made up of ingredients you’d normally find in pee.

It has gone through several different formulas as technology has changed over time.

Even the differences between the current Quick Fix 6.2 version and its predecessors Quick fix plus 6.1, 6.0, 5.7-1, 5.7, 5.0 and 4.0 are quite different.

Quick Fix keeps up with testing trends (much-appreciated science people). The formula is made up of ingredients you’d normally find in pee.

It contains pre-mixed urea, and is chemically balanced for pH, substances like creatinine and specific gravity.

Urea is an organic chemical structure that is basically a human waste substance. It’s also called carbamide and is made naturally by your body as it breaks down proteins. Your liver metabolizes proteins, amino acids, and ammonia. Then your kidneys send the urea from your bloodstream into your pee.

Urea is how your body naturally gets rid of nitrogen — mostly through genuine urine, but also sometimes when you sweat.

Most people excrete around 30 grams of urea every day either in liquid or solid form. The current version is developed from carbon dioxide and ammonia through a process of dehydrating ammonium carbamate through extreme heat and pressure.

Totally pure urea is made up of around 46% nitrogen and is balanced for pH when dissolved in water. Your bladder, urethra, ureters, and kidneys all help process these compounds so you can excrete them naturally.

As extra water and toxins move through your body, and you piss them out, your body gets rid of by-products that are considered waste – such as urea, extra ammonia, and uric acid.

How to Use Spectrum Labs Quick Fix for Best Drug Test Results?

To achieve the best results when using Spectrum Labs Quick Fix for a drug test, follow these simple instructions carefully.

Quick Fix tests every single batch before shipping out so you know you’re getting a quality sample for your drug test if you order directly from the manufacturer.

Please, don’t buy the fake urine from unknown sellers as normally they will be shipping a phony or watered-down Quick fix product, which could cause a failed drug test.

When Quick Fix arrives, it’s pre-mixed and comes with a temperature strip included. So, all you need to do is heat it up, and it’s ready to go. No chemistry degree or special lab equipment is needed to succeed in your drug test.

Here’s the best way to use Quick Fix fake urine, so you can make sure you’re not going to get slammed after a drug test:

1. Heat Up the Quick Fix Fake Urine Product Sample

Before you leave your house, open up the bottle of Quick Fix fake urine and stick it in the microwave for 20 seconds. Make sure you open the top before putting it in the microwave!

If you CAN’T microwave Quick Fix fake urine, then tape the heat pack to it an hour before you want to use it (or secure it with a rubber band). Heating up the synthetic urine is the most important step because if you make a mistake, then you could be leading yourself up to a failed drug test.

2. Test the Urine Temperature

After you take it out of the microwave, close the top and shake the Quick Fix bottle up really well. This makes sure the temperature is consistent throughout the entire bottle. Then use the temperature strip to test how warm it is. The urine should be between 94- and 100-degrees Fahrenheit.

If the temperature is not enough, then put it back in the microwave for a few seconds and test the temperature strip again. If it’s too hot, then let it cool down a little bit or use something to fan the product off before testing. Don’t waste too much urine testing it.

3. Keep Quick Fix Warm Until the Drug Test

Use a rubber band or tape to secure the heating pack around the Quick Fix bottle. This will keep the correct body temperature strip until you’re ready to use it.

The heating pad is guaranteed to keep the bottle of urine at the right temperature for around 6 to 8 hours. So, if you need longer than that, put it in the microwave again or use warm water so the temperature strip is right.

You can reheat the fake urine with a heating pad as many times as you need to. The temperature strip has to be somewhat consistent throughout the whole ordeal, and the only way to do that is to follow the instructions provided in the box or keep reading this article. I recommend you wear two pairs of undergarments. That way, you can put the pack in between the two pairs and keep the sample warm, and that way you’re comfortable during the drug test.

>> QUICK FIX 6.2 HAS A 99.987% SUCCESS RATE BUY HERE<<

4. Give Your Sample Properly

When you’re ready for the drug test, shake the bottle of Quick Fix fake urine, make sure the temperature is correct, and then pour the synthetic urine bottle into the testing collection cup. If you see it “settling” – this is natural. Normal pee does this too.

If you’ve got a supervisor in the room, then you have to use a tool like the Monkey Dong to pretend you’re actually pissing into the cup. Supervisors are specially trained to check for tubes, straws, and filled condoms. Come prepared for the drug test.

Where to Buy Quick Fix Urine?

Buy Quick Fix 6.3 fake urine directly from the original manufacturer retailers.

Sometimes you see people selling the product on eBay and Amazon for a super cheap price, and those are two places I don’t recommend, because usually, these are expired (especially on Amazon) and don’t match the quality required.

Quick Fix fake urine is only guaranteed to work if you get a FRESH quality sample, so don’t risk getting something that’s degraded by trying to save a few bucks before your drug testing.

Also, you might encounter a few smoke shops near you that sell Quick Fix formula in stores, but I wouldn’t trust those people as they might be cheap knockoffs of the real Quick Fix.

Usually what happens is these sellers buy a bunch at liquidation sales and then try and hawk them online or even at local smoke shops. It’s not worth it. Just get it from the manufacturer so you can be guaranteed it will work.

Quick Fix promises you’ll get a fresh sample that will be good for several years before it expires, and there are many positive Quick Fix reviews backing that claim up.

There are not too many retailers that sell them in-store, so it’s always best to shop online to get the best price.

There was also a case a few years ago where someone was selling knock-off versions of the original Quick Fix product and creating bogus urine reviews.

The guys at Quick Fix eventually got these counterfeit urine manufacturers retailers shut down – any product you buy online (directly from the manufacturer) is guaranteed to be the real deal with real and honest reviews.

Always read the actual content and look at the length of the synthetic urine review. Normally if you see a bunch of super-long reviews, they are not real. So just watch out before buying the product before your urine tests.

Don’t fall for any scam sites which say that there are still counterfeit products that are on sale – unless you’re buying on eBay or Amazon, there are NO counterfeit products out there anymore.

You can’t buy this product in any high street store as it’s only available for sale online.

One other reason you want to make sure you buy directly from the real manufacturer is so it will be shipped discreetly to your place before your drug testing. The last thing you want is a box labeled “fake human urine, so this dude can cheat his piss test at work” showing up on your doorstep.

OK – I exaggerate, but the manufacturers of Quick Fix guarantee your package will be delivered to your place in a generic box that will NOT say what’s inside the box.

How Much Does It Cost?

The cost of Quick Fix urine varies depending on whether you choose the regular Quick Fix or Quick Fix Plus version, with a slight price difference, but it’s advisable to buy in bulk to ensure you’re always prepared for unexpected situations like additional sample requests during drug tests.

I ALWAYS order extra. You never know when you’re going to get a nasty case of someone asking you to give an extra sample of genuine urine for a drug test – “just to be safe”. I almost got nailed last time because of that, so now I always make sure I bring an extra pack.

The difference between Quick Fix urine and Quick Fix Plus is the size of the bottle. Most of the time, the drug test won’t need more than a couple of ounces, but sometimes you will spill. If you want to be 100% sure about your drug testing, get the Quick Fix Plus version. It’s not that big of a price difference.

Also, trust me on this one dude, get a 10 pack of the formula. You do NOT want to be caught without enough stuff if you’re asked for a second sample during urine drug tests. Plus, Quick Fix has a money-back guarantee if it doesn’t work you can always just return it.

They offer what they call a “200% satisfaction guarantee” on each sale – and they allow you to return the product within 30 days of buying. I don’t think you will find many negative Quick Fix Plus reviews that don’t like the guarantee offer.

Our Official Rating:

• Effectiveness: 4/5
• Price: 5/5
• Ease of use: 4/5

Frequently Asked Questions:

How do you read the Quick Fix Plus strip?

You read the Quick Fix Plus temperature by checking for a green color underneath the numbers.

It takes a few seconds to adjust, but the reading is accurate enough in that range to indicate whether it’s too hot or cold.

What temperature should Quick Fix Plus be?

Quick Fix should be at a temperature between 95 and 100 degrees Fahrenheit.

This is what’s classified as a normal temperature for fresh pee that has just left your body.

How long does Quick Fix Plus stay at the right temperature?

Quick Fix Plus will stay warm and at the correct temperature for up to 8 hours if you properly attach the heat pack.

Can you reuse Quick Fix Plus synthetic urine?

Yes, you can reuse Quick Fix Plus synthetic urine.

However, it’s something you shouldn’t keep for longer than the recommended shelf life on the packaging.

What is the shelf life of Quick Fix?

The shelf life of the Quick Fix 6.3 product is around two years.

Can Quick Fix be reheated?

Yes, you are able to reheat Quick Fix in the microwave with no problem whatsoever.

Is there a strip included with Quick Fix?

Yes, there is one strip included in every box of Quick Fix.

What if my temperature strip is not working?

It is common when you’ve overheated your product. Leave your product at room temperature for a little bit, and the strip will work just fine.

Is the 2- ounce bottle of Quick Fix enough for my urinalysis?

Yes, it is.

Can I use Quick Fix for drug testing if you don’t have a microwave?

Yes, you can simply use the heating pad included with the Quick Fix product as instructed. It will work just fine if it’s the right temperature.

Can you freeze synthetic Quick Fix 6.3?

Yes, you can freeze Quick Fix as the freezing process will not alter the chemical structure of synthetic pee. However, you should avoid going through a freeze and defrost cycle more than once, as, over time, this can degrade the sample, making it less reliable be sure to always recheck using the temperature strip.

Does Quick Fix 6.3 smell like real human urine?

Yes, Quick Fix 6.3 does smell like real human urine.

Does Quick Fix come with instructions?

Yes, Quick Fix comes with easy-to-use instructions.

Our Honest Quick Fix Synthetic Urine Review:

How Much Does It Cost? – Good

Quick Fix Plus is a little more expensive than some other synthetic urine brands for genuine urine drug tests, but given the high success rate of Quick Fix, it’s still the number one best value for money. And, when you’re dealing with something as important as passing a mandatory test, then you really don’t want to risk it with some cheap product, do you?

So, I don’t think spending a little bit more for it is a big deal as long as it guarantees that it works as it was intended to. All in all, the artificial urine price is completely fine because quality always wins when it comes to these matters.

Adulteration – Good

All products need to pass an adulteration test to be worth their salt. Adulteration means the urine has been contaminated, diluted, and tampered with. And, using those kinds of products will get you in trouble for sure, so avoid it at all costs.

If you are still unsure of what this issue is, do some of your own research to get an idea of how serious it can be for a lot of people.

Research done on Quick Fix Plus artificial confirms that it’s a safe product that is free of adulteration, which is part of the reason it has such a high success rate.

Success Rate – Incredible

So, for the people asking, “has Quick Fix Synthetic Urine failed?”

Quick Fix Plus has a 99.987% success rate. You can’t really hope for anything higher than that in the real world. There’s no doubt in my mind that this is absolutely the best and easiest to use artificial urine formula on the market for drug testing!

Sure, it costs a few bucks more when you compare it to the crappy stuff that you can buy at your local head shop, but if you want the preferred method for drug testing, Quick Fix Plus by Spectrum Labs is where it’s at. It’s my favorite brand!

Check out this one Quick Fix Synthetic Urine review in a closed Facebook group.

Fake urine might be an ideal answer if you are facing drug tests or are subjected to randomized testing for whatever reason. 

The content of the Quick Fix 6.3 product is made to look like real human urine, with the right pH, specific gravity, and urea level. 

However, I would still recommend the Quick Fix 6.2 formula. Of all the products I’ve tried over the years, Quick Fick 6.2 earned the most points after helping me pass several crucial drug tests. The formula is ideal for both men and women, with a genuine appearance, scent, foam content, and ingredient list. Spend the few extra bucks and get the real Quick Fix formula. I can assure you, Quick Fix 6.2 Plus by Spectrum Labs is worth it for passing your drug test!