Best recommendations to increase your odds of passing a drug test

In this article, you will learn everything you need to know about how to pass a drug test. Whether you have marijuana in your system or any other sort of drug, these legal and safe recommendations will help you pass all sorts of drug tests.

You are going to learn about effective methods that will help you before your drug test. You will also learn about the factors that can hinder your plans in order to get clean.

If you ever need to jump to a certain topic, be sure to use the Search by Category menu below, located on all of our pages for quick navigation:

Overall Factors that can have an Impact on Test Results

First, let’s learn what the major factors are when it comes to passing a drug test.

Frequency of Substance Use

This is quite simple to understand. The more you use, the substance will continue to build up in your system, and the more likely it is that you will fail your drug test. Both the amount and the frequency of you using the drugs will play a role in the final results of your drug test.

Total Amount of Body Fat on Your Body

As you may know, THC is stored inside fat cells. When creating our drug test calculator (link below), it was determined that the amount of body fat you have is more important than how much you actually weigh. The more fat cells that are in your body, the more metabolites it will be able to store, and the longer it will take to pass a drug test.

Your Metabolism and Health

The metabolic process ends up breaking down everything that enters your body. Hence, a higher metabolism will break down and eliminate the drugs a lot faster from one’s system as compared to someone who has a slower metabolism. Moreover, genetic makeup, gender, age, and how active you are also affect this process. Plus, according to some evidence, there are specific foods that can also alter one’s metabolism and this can affect the detection of drugs in one’s body.

Passing Probability Calculator

Use the world’s only data-driven marijuana drug test passing probability calculator in order to determine your odds of passing a urine drug test. With over a decade of research and development, this is the only application that can provide an accurate answer to how long cannabis can be detected in your system:

Marijuana Drug Test Calculator

The calculator graphs your Passing Probabilities vs. Days for untampered and diluted/detoxed urine. View Patent US 13/866,015 for more information.

How Urine Drug Testing is Conducted

You would have to submit a urine sample and it will then be sent to the lab, where it is going to be tested using different methods for any signs of drugs in your system. Your sample needs to clear the immunoassay test and in order to do that you should have very low concentration of THC and its metabolites in your urine. The national cutoff for testing THC metabolites is 50ng/mL of urine.

Several Methods to Pass a Urine Drug Test

Permanent Detoxification and Removal of THC Metabolites

This method will remove all of the THC and its metabolites from your body; hence less metabolites will be present in the urine. You will be permanently detoxified until you use weed again. In this method, you need to regularly exercise and have a good diet for a couple of weeks. You can also use additional supplements in order to help with the detox process. This method is perfect for someone who has more time before their test and is looking to completely remove THC from their system.

Temporarily Flushing Marijuana Metabolites from Your Bladder

This method requires the user to drink large quantities of water in order to urinate and flush out all of the THC metabolites from their bladder. This will temporarily reduce the THC metabolites from the body. You need to take in electrolytes and vitamins in order to affect the other important factors, like color, specific gravity, creatinine levels, etc. This method is ideal for the ones who aren’t planning on stopping to smoke anytime soon and need a quick solution before their test.

Substituting a Different Urine Sample that’s not Yours

You can get someone else’s urine or use synthetic urine in order to get a sample that’s 100% clean. You might need additional devices, such as hand warmers or a whizzinator. It should be noted that this method is not legal and we do not recommend it.

What to do when Providing a Urine Sample

Aspirin and a Dilution Process

This is the standard method to use before every drug test, especially when using detox products. You will need to increase your water intake in order to reduce the THC metabolites to undetectable levels. This method can be used when you don’t have enough time and you need an immediate solution a day before your test. However, there’s always a possibility that you will still fail—as no process can be guaranteed.

Things You Need:

  • Aspirin
  • Fluids containing electrolytes (like Gatorade)
  • Creatine powder supplement
  • Vitamin B-12 complex

What to Do:

Take an at-home test first thing in the morning and see if you pass. If you fail your at-home test, it will be imperative at adhere to these directions. If you pass your at-home test, be sure to follow these recommendations anyway—it is rare, but sometimes people fail the lab test right after passing a home test.

It has been found that aspirin may have an impact on the initial immunoassay drug test that urine goes through, causing false-negative results. Fluids that contain electrolytes and creatine will help keep the pH and specific gravity of your urine within range which diluting.

Standard Steps for Dilution:

Step 1) Four hours before your test, take a serving of creatine powder with a glass of water

Step 2) With the same glass of water, take a couple of aspirin pills and a Vitamin B supplement

Step 3) Over the course of the next four hours, try to drink a gallon of fluids with electrolytes

Use a Marijuana Detox Kit

These products are designed to help your body rid toxins through a natural detoxification process, and will help increase your odds of passing a urine drug test.

Substituting Your Urine

Use Your Friend’s Urine

This may be a last resort for some, but it’s the easiest way to pass a urine drug test. Although same gender urine is recommended, you can use either so long as that person wasn’t using anything that could cause you to fail a drug test.

What to Do:

  1. Use a bottle to collect your friend’s clean urine.
  2. Your friend should provide their urine right before your test since it needs to be a specific temperature (if you can’t use previously-stored urine).
  3. Use a heating pad to keep the urine warm enough.
  4. Keep the bottle close to the genital region while it’s inside your underpants.
  5. Transfer at least 30mL of fluid into the sample cup.

Synthetic Urine

This is fake urine that is used by people in order to pass their drug tests and it contains the same ingredients as the real thing. Plus, it smells and looks the same as well.

What to Do:

These products come in both liquid and powder form. If in a powder form, it needs to be turned into a mixture, and then follow the rest of the instructions below:

  1. Add water to the powder and get it to the ideal temperature using a microwave.
  2. Attach the sample to the heating pad.
  3. Hide the sample on your body and bring at least 30ml of the prepared mixture.
  4. Transfer at least 30mL of fluid into the sample cup.

You will need to safely get it inside the test center’s bathroom, and you can do that by either placing the container into a pocket, attach it to your belt, or tape it on the inside of the thigh.


The main component of marijuana is THC, which is fat-soluble. Therefore, it is stored inside the fat cells of the body. The detoxification process comprises of excreting the THC that’s stored in the body fat and releasing it from the body through urine.

Natural detox can take a long time, like a couple of weeks to a few months, depending on the individual’s body, their use of marijuana, and their weight. In order to naturally detox your body, you need to follow a proper exercise and diet program.


  • Get some exercise in order get rid of toxins from your body! Particularly, cardiovascular exercises, like running, walking, jogging, etc.
  • Avoid red meat and junk food, since it’s filled with calories and they can result in storing more fat in the body, which means more storage for THC.
  • Drinking lemon juice in warm water is going to improve digestion and metabolism rate.
  • Adding fruits and vegetables, like leafy greens, will fill you up without adding extra calories.
  • Drinking at least two liters of water on a daily basis will help suppress appetite and help the body metabolize fat.
  • Incorporate more fiber-filled food into your diet, like kidney beans, nuts, black beans, peanuts, wheat bread, etc. It will keep you fuller for much longer.

Have Five or More Days to Naturally Detox?

Use our detox menu below to select a suitable product. All detox products sponsored are safe and will increase your odds of passing a drug test.

Best Recommendations to Pass Your Urine Drug Test

  • A week before your test, stay away from eating greasy and junk food. Have a clean diet filled with healthy foods.
  • Urinate as much as you can by drinking a lot of water. However, don’t go overboard since this could raise suspicions.
  • At least two days before your test, start to drink more water throughout your day as it will help in detoxifying your body. Drink at least 16-ounces glasses four times in a day.
  • Do not drink or smoke no matter how nervous you are. You don’t want to ruin your chances of passing your test.
  • Start exercising a week prior to the test in order to speed up the metabolism. Make sure to stop one day before the test.
  • Avoid toxins and stay away from anything that can expose you to them for at least two days before your test.
  • Use a home testing kit in order to confirm that you are getting the desired results. Hence, you won’t be as nervous on the actual test day.
  • If you are allowed to pick the time for your test then take it in the afternoon, since at that time the urine isn’t as concentrated.
  • Avoid medications or supplements. If you take prescribed medication then take it with you to the test center. However, don’t reveal them unless the people there ask.
  • Try to stay calm during your test and take a couple of deep breaths. It will look suspicious if you’re nervous around the technicians at the test center.
  • On your test day, eat a large meal beforehand and make sure to at least dilute your urine.


In this article, we discussed several ways to increase your odds of passing a marijuana drug test.

The standard method to use when it comes to providing a urine sample is to dilute your urine with aspirin, electrolytes, and Vitamin B. When using a detox product, always include the dilution process to increase your odds of passing a drug test.

When substituting your urine with something else, make sure the mixture is at the right temperature, hide it on your body with a hand warmer pad, and transfer at least 30mL of fluid into the collector cup.

Follow our recommendations in order to detox naturally and avoid taking anything that can compromise the results of your test.

Popular Drug Test Articles

How Long THC Detection in Body/System

Detection Time of Cannabis in Your Body

Detoxification Products vs Water Dilution

Detoxification Products vs Water Dilution

How to Prepare for a Drug Test

How to Prepare for a Drug Test