Article updated: 2020 Aug 24. doi: 10.10827/ Author Leslie Griver, Robert Henry

The Ultimate Guide to Passing a Supervised Drug Test

If you’re on the internet right now looking up ways to pass a supervised drug test, you probably have a drug test soon.

And you probably know by now that to pass a urine drug test, you need to lower the concentration of marijuana metabolites in your urine below 50ng/ml.

Now, the only definite way to pass your drug test is to not have anything in your system.

But, if you’re not sure of this, there are other ways.

If the upcoming urine test is a Direct Observed Collection, it means you’ll be watched by a staff member of a similar gender. Your chances for passing are quite limited with this one.

But, if your test is a Monitored Collection, where the staff member accompanies you inside the restroom but does not enter the stall, you might just be able to get your way if you do everything right.

Today we’ll be telling you about three ways in which you can pass your supervised drug test.

These are:

A little warning before we start: since you need to pass a supervised drug test, urine substitution is extremely risky and we don’t recommend it.

Let’s get on with it, shall we?


The first method I’ll be talking about is flushing. If done correctly, flushing is a legal method that guarantees you’ll pass your drug test.

And the best part is that this method really works when you have limited time – even if your drug test is on the same day!

How Does it Work

Flushing is very easy to implement.

All you have to do is drink loads of water before your drug test.

This causes the THC metabolites in your system to be flushed out of the bladder, making their concentration in the urine temporarily low, and below the drug test’s detectable level.

How Is It Done

Here’s what you need if you choose to flush to pass your drug test, and why you need it:

Vitamin B Supplement This will restore your urine’s natural color, which otherwise might seem suspiciously clear instead of the natural yellow.
Creatine Ethyl Ester Supplement This is required to restore normal creatinine levels in the urine, which can become suspiciously low when you consume too much water.
Electrolyte Powder or Drink These consist of sodium and magnesium, which will keep your urine’s specific gravity level in check, which might otherwise seem off.
Aspirin Its metabolites are known to cause false-negative results in immunoassay drug tests.
Activated Charcoal This will break the enterohepatic circulation of THC metabolites and temporarily prevent them from being reabsorbed from the intestines into the blood. So, fewer THC metabolites will be excreted into the urine.

How to Pass a Supervised Drug Test with Flushing: Instructions

Natural Detoxification

If you have time on your hands, say about 2 months, you can allow your body to detox itself. And since it’s a natural process, it’s guaranteed to work well.

But remember: the time it takes to naturally detox depends on the person’s body mass and metabolism, so it’s different for everyone.

How Does it Work

With natural detoxification, you can remove all traces of THC metabolites from your body by simply letting nature take its course.

Obviously, the concentration of metabolites in your urine will go down, but THC metabolites are also stored in body fat and are gradually released into the bloodstream with time.

This could sabotage your drug test!

To avoid this, you’ll need to help your body out by burning fat, so that those stored metabolites are released and excreted as well.

How Is It Done

Here’s what you can do to help your body naturally detox.

Follow a Healthy Diet Plan This means avoiding fast foods and sugar, which may contain preservatives, flavor enhancers, and coloring agents. Eating more of green vegetables and fruits enhances the amount of fiber in the diet which helps bind and remove metabolites from your system.
Drink More Water This will help flush out more toxins from your system. Drink approximately 8-10 glasses or 2 liters every day.
Exercise This will help burn excessive fats and release more THC for excretion.
Take Activated Charcoal This will break the enterohepatic circulation and fewer THC metabolites will be reabsorbed into the blood from the intestines.
Take Apple Cider Vinegar (ACV) Ingesting 30ml of ACV daily is known to help burn more body fat.
Take Cranberry Pills These help to reduce body fat since they contain no sugar and are a great substitute for sugary drinks.

Urine Substitution

Now as I mentioned in the beginning, I do not endorse urine substitution.

For starters, it is illegal.

Additionally, it is very risky and difficult to implement.

If you try to swindle the system and get caught at the collection site, or the laboratory, it will have significant consequences for your career and personal life.

So why risk the humiliation and blacklisting when better alternates are available?

And even if you think you’re extremely clever, neither of the options for urine substitution can guarantee that an expert lab won’t detect that the urine sample was substituted.

But just for information and curiosity’s sake, I’ll tell you what it is.

Urine substation means that you do either of three things:

For urine substitution to be effective, you need to keep the urine’s temperature between 90 °F to 100 °F.

Since you will be observed during urination, you need to use a whizzinator or some similar device, to cheat the observer. [4]

The Whizzinator is a kit that has:

If you are female, you’ll need to use a female whizzinator. It’s the same in principle and use as the traditional whizzinator, and comes with:

So basically, if you have a drug test scheduled for tomorrow, flushing is the best way to go.

If you have ample time, go with a natural detox.

And even though it may seem quite thrilling and appealing, avoid urine substitution techniques. After all, nothing is more important than safety and reputation.