Pass A Marijuana Drug Test: Everything You Need to Know


Got a drug test coming up?

If you're reading this article, it's likely that you do and need to know how to get marijuana out of your system fast.

Well, good news. For marijuana users, passing a drug test can be tough, but it's not impossible either.

You just need to know the proper ways on how to pass a marijuana drug test.

This article will teach you the basics of drug testing and help you learn how to detox weed through natural and chemical methods, and be weed-free using the best and fastest methods possible.

Teach me, I want to learn how right now!


THC or Delta-9 tetrahydrocannabinol is one of the many chemical compounds (known as cannabinoids) found in marijuana.

It’s fat-soluble, meaning it’s stored in fat cells of your body.

It can be traced using your saliva, hair, fingernails, blood, as well as urine samples and is what drug tests look for to see if you have consumed the drug or not.

THC is responsible for most of marijuana’s psychoactive and euphoric effects. It works by binding to cannabinoid receptors in the brain which can induce enhanced sensations, food cravings or munchies, giddiness and paranoia.

In short, THC is what gets you high.

How is THC Absorbed?

In the body - THC is absorbed the fastest through smoking, which is also the most popular way to consume marijuana. When marijuana is smoked, it reaches its peak level at around 9 minutes.

Oral ingestion - Through edibles and infusions is another way to consume marijuana although it is less common than smoking. When marijuana is smoked, it reaches its peak level at around 9 minutes.


There is no simple answer on how long THC stays detectable in the body because it greatly depends on a number of factors:

  1. THC half-life. Generally, the half-life of THC is 7 days. After this period, metabolites (the breakdown product of THC) decrease to 50% and it takes about 3 - 4 weeks for the occasional user’s body to be completely rid of THC.
  2. The frequency of marijuana consumption. For example, regular and frequent smokers retain THC longer than first-time users.
  3. How much you smoke. Heavy consumption of marijuana also translates to more THC being present in the body.
  4. Not all weed is created equal. The potency of the weed strain that you have consumed affects your THC levels.
  5. Your lifestyle. Your metabolism, diet and physical activity is a factor to take a note of.
  6. Detoxification. Detoxing is a way to hasten the decrease of THC traces in your body. There are many products available in the market to achieve this result.


There are several drug testing methods used to detect marijuana use. These methods have varying sample types but share the common goal of detecting THC or its metabolites (THC-COOH) in the body.

Times THC or its metabolites are detectable in the body:

  First time use Occasional use Regular use Daily user
Urine 5 to 8 days 11 to 18 days 33 to 48 days up to 90 days
Hair Unlikely 7 days up to 3 months 7 days up to 3 months 7 days up to 3 months
Blood 6 - 24 hours up to 7 days up to 7 days up to 7 days
Saliva first 24 hours first 24 hours first 24 hours first 24 hours

Urine test

Urine testing is the most common drug test method because it is less expensive, easiest to collect, and because THC remains detectable for a longer period of time in urine than elsewhere.

75% of drug tests are conducted on urine samples.

Urine drug tests detect THC-COOH (major breakdown product of THC) rather than THC itself.

How Results are Obtained:

  1. Send the subject to an offsite facility where urine is collected and screened (most common method)
  2. Fast and instant onsite screening which is convenient for the work, school and rehabilitation settings (gaining popularity)

Detectable time:

  • For one-time users: urine tests can detect THC-COOH presence 5 to 8 days after marijuana consumption
  • For occasional users: urine tests can detect THC-COOH presence 11 to 18 days after marijuana consumption
  • For regular users: urine tests can detect THC-COOH presence from 33 to 48 days after marijuana consumption
  • For daily users: urine tests can detect THC-COOH presence 90 days after marijuana consumption

Hair follicle test

This test method is expensive yet effective, and is mostly used for highly sensitive jobs. Just an inch of hair from a person’s scalp, pubic area, arms or legs is required.

Detectable time:

  • Hair follicle tests can detect marijuana use about 7 days up to 3 months after marijuana use.

However, studies have shown testing hair for traces of THC can cause false positives because of secondhand exposure to marijuana.

Blood test

Test that identifies THC in the bloodstream.

Detectable time:

  • For occasional users, THC stays in the bloodstream for about 6 - 24 hours. After this time period, it is metabolized in the liver and dispersed in the cells.
  • For frequent users, a blood test can still produce positive results for up to 7 days

Because of this timeframe, it is not ideal for pre-employment screening. This method is most commonly used to detect THC in subjects who are recently impaired such as in accidents.

Saliva test

The saliva test is another method that is preferred by employers. The sample is taken through a swabbing inside the mouth which makes it convenient and inexpensive to administer.

Detection time:

  • THC remains in the saliva the shortest, which is within the first 24 hours after marijuana.


Drug tests are administered in various settings for different reasons.

The most common are for pre-employment requirements and random drug testing in companies.

Fortunately, you don’t need to be 100% free of THC or its metabolites to pass a marijuana drug test. You would just need to have levels below the threshold for the test.

Typically, the threshold is 50 ng/mL. As long as you register under this value, your test result will be negative.


Drug testing within 24 hours after using marijuana can be risky. However, there are ways to improve your chances and even make sure that you will test negative.

  1. Do not start gulping water nonstop on the day of your test. Instead, drink 2-3 liters the day before your test, and then around 1-2 liters several hours before your test.
  2. Avoid exercise within 24 hours prior to testing as it spikes THC levels in the blood.
  3. Improve your chances of a negative result by taking Vitamin B2, B12 or B-complex. A dosage of 50 to 100 mg. should be sufficient.
  4. Schedule your testing around the afternoon or anytime that you do not need to use your first urine of the day.

Use same-day detox products

Toxin Rid

So you decided to smoke up but then you forgot you had a drug test coming up. What do you do? This is where the TOXIN RID 1-day detox comes in, perfect for those who have lower levels of THC in their system.

It comes with pre-rid tablets, dietary fiber, and a detox liquid. What makes them awesome? They are an all-natural detox product which has herbs, minerals, and vitamins. And because it’s all-natural, it dissolves in your system, then rids your blood, saliva, and urine without any trace.

You can take the tablets, the liquid, and the dietary fiber anytime just like any other dietary supplement.

Toxin Rid Rescue Mouthwash

Mouthwash, that’s what this is. It’s a mouthwash just like your everyday mouthwash back home. However, Toxin Rid Rescue Mouthwash has a unique ability that your usual mouthwash most likely doesn’t! It removes any detectable drug toxins left in your mouth before you take a drug test. Drink it, gargle, and spit it out! Repeat it twice and take breath mints right after. It is a small, 1-ounce bottle which makes it easier for you to dispose or hide before you take the test.

Mega Clean

Okay. Maybe you’ve smoked a little more than the average user and your THC levels are flying. You try every solution you can think of and nothing seems to be working. You went on a diet, ran 5 miles a day, and everything else that article suggested but you’re still worried.

Maybe it’s because of your body or maybe you took in a bit too much THC to pass your drug test. This is where Mega Clean comes it, the perfect solution for supervised drug tests!

Mega Clean is for users who have larger body or for those who have higher toxin intake. Just drink 20 ounces every two hours and you should be good to go. That’s how you do it like a boss! It takes effect within 1 to 5 hours and then it wears off, so users must be careful when using this one.

It is a one litter of bottle which is rich with Mata-Boost. What makes it great is it comes with a FREE six-capsule PreCleanse supplement packet which can be used for up to 12 to 24 hrs prior to the test. All you need to do is consume light meals and urinate to flush the toxins. Easy, peasy.

XXXtra Gold Cleansing Drink

XXXtra Gold Cleansing drink is recommended for those who are taking directly-supervised tests. It lessens your toxin level in 1 hour but is still effective up to 5 hours.

It’s basically a drink, a juice drink to be exact, and you just chug it down. It’s actually quite refreshing actually and comes in wild berry or watermelon flavor. This 20-ounce drink contains a 5-point cleansing system with herbs, diuretics, creatine, vitamins, and fruit fiber which are all used to detoxifying the body.

Once taken, it’s to avoid taking any toxic substances that may fail its effectivity. You can wait up until 48 hours, right? Or better yet, stay out of its way until your drug test to get an even better chance of passing.

Ultra Clean Shampoo

Have a hair follicle drug test coming up? Sounds like you need something that will clear your hair from any impurities, and fast.

Most drug testing centers are well equipped with to find whatever drugs you’ve been taking with just hair sample. It could get pretty hairy for you (no pun intended).

Ultra Clean Shampoo with Aloe Rid will give you might be just what you need. This is the only shampoo for follicle test that can purify the hair and condition it at the same time. Just like your ordinary shampoo, it controls tangles, adds sheen, and manageable. BUT what makes this unique is that it penetrates the inner structure of the hair to dissolve and remove any chemicals, allowing you to pass your hair drug test with flying colors.

Clear Choice Shampoo

Now let’s go to another type of shampoo that’s guaranteed to be effective for up to 8 hours, Clear Choice Shampoo. It’s just like hair dye. Just leave it in for about 15 minutes then wash it with warm water. That’s all it takes to earn get your getaway ticket from all your drug-test worries.

Just make sure you don’t use any other finishing products or blow dry your hair after use. Why? This product contains all the ingredients you need to help you out with a test. It has citric acid, Cocamide MEA, Cocamidoopropyl Betaine, Sodium Laureth Sulfate, and Blue #1. When applied, it will help decrease the THC levels that can be traced in your hair.

Powdered Urine Kit

So you’ve already tried everything, read everything you can find online, but still have your doubts. What else can you do? Maybe you’ve smoked too much and there’s no way to detox in time for your drug test. Looks like you’re out of options…or are you?

This is where Powerdered Urine comes in. It’s the only product recommended for those who have no other options and want to be 100% sure they pass their unsupervised urine drug test. If you are a heavy user, then this one is for you.

The kit itself comes with a vial of powdered urine, a plastic medical transport vial with lid, temperature strip attached to the vial, and two air activated heaters enclosed in a plastic package. Why does it need air activated heaters? Once you will take the test, it could look suspicious if your “urine” is too hot or too cold. The heaters will help bring the temperature into an average degree, making it “urine” possible. The kit itself is clean and clear, so no worries on that department.

Test yourself at home.

Want to be 100% sure before your test? You can buy drug testing kits and test yourself at home to see if you pass.

Marijuana drug test kit | Hair drug testing kits | Oral fluid screening kit


In addition to detoxing the natural way, here are other tips to be clean from THC in a week.

Use detox products. There are different detox products you can use to achieve a negative result in 7 days. Just make sure to use reliable products that are effective and safe for you.

Toxin Rid

For urine tests, blood tests, saliva tests

Toxin Rid cleanses your system of drug toxins unlike detox drinks that only mask toxins temporarily.

This product is completely natural, and involves a 3-part system that requires the intake of tablets, dietary fiber and detox liquid.

Toxin Rid's 10-day formula is specifically designed for users with extreme drug exposure. Meanwhile, the 7-day and 5-day formula is designed for users with heavy drug exposure.

Toxin Rid works best when you combine it with Mega Clean.

Increase your creatinine levels. Increase your intake of red meat or further enhance it by taking creatinine supplements.

These supplements are available in specialty health stores and can be added to your daily diet a week prior to your exam.

Time your tests. Each method of testing has a different window wherein THC is detectable in your system. Knowing these timeframes can increase your chances of testing negative.

Please note that this is most effective for single use of marijuana only and may not be as reliable for frequent users.

Hair alteration or removal. This method will only work for hair follicle testing.

If the person administering the test is unable to obtain a hair sample, you cannot test positive with this method.

However, this method can easily raise suspicions especially if you are not a bodybuilder or a competitive swimmer.

You must remember that there are other more convenient ways for facilities to test for THC so this method may enhance your chances but cannot totally eliminate the possibility of testing positive.


If you want to be THC-free in a month, the best way is to abstain as quickly as possible.

Stop consuming cannabis in all forms: smoke, edibles, topicals and concentrates.

The next step includes natural detoxing methods like staying hydrated.

Drinking water is the simplest form of detox. To aid this natural method, use lemons which are very high in vitamin C. Tea and other juices are recommended as well.

CAUTION: Drinking too much water on the day of your test can dilute your urine and cause suspicion. It only makes sense to drink plenty weeks before your test.

Avoid alcoholic beverages, caffeine and sodas within this period as well.

Being on the right diet also helps you flush out THC. Consuming food rich in antioxidants is recommended during the detoxification process. Some examples are tomatoes, kale, plums, spinach, bell peppers, corn, berrries, walnuts, artichokes, and brewed coffee.

Fiber-rich food help lessen THC absorption in the body. Green vegetables such as broccoli, spinach and kale are good items to include in the diet.

Add food that is rich in vitamins and electrolytes to your daily meals.

Herbal supplements such as cayenne, psyllium seeds and milk thistle can also enhance detoxing, making it more effective.

Consumption of junk foods should be eliminated as it causes water retention and slows metabolism.

The body can rid of toxins by sweating. Regular exercise is an effective form of natural detox. Cardio exercises such as running and biking help release THC that are stored in the fat cells.

CAUTION: avoid exercising prior to a drug test. THC metabolites, when present, can increase levels in your blood within 24 hours of exercise.


So there you have it. Hope this gave some insight on how to pass a drug test. Good luck!