How Long Does Marijuana Stay in Your Hair Follicles

How Long Does Marijuana Stay in Your Hair Follicles

How long is the hair follicle drug test detection time? This one question might be spiraling in your head if you need to undergo a follicle test. This might not be true for those who don?t indulge in the occasional pleasure of weed. But then again, finding people who didn?t give in to the allure of marijuana is a hard job.

Passing a hair drug test is very tough all the more reason why a surging number of employers prefer it over other drug tests. It can identify the existence of drug residues for about 90 days. On top of that hair drug tests presumably have a close to perfect accuracy score. This is why lab testers don?t have to run a confirmatory test if the result comes out positive.

A confirmatory test is a common thing for urine or saliva drug tests when someone tests positive for drugs. They do it to strike out the chances of mistakes. But hair drug tests don?t need a second test. Thus, federal government departments and many corporate organizations like to perform follicles tests before recruiting.

A urine drug test has some drawbacks. This is why nowadays employers prefer to use follicles tests. So, if you have a pre-or post-employment drug test it is more likely they would ask for a hair drug test.

It might be hard to beat a hair drug test but it is not impossible. You would find many detox products in the market that can help you pass the test. Some even claim to work in just 24 hours. In this article, we are going to help you understand what a hair drug test is, and how you can pass it along with the do’s and don?ts.

So, What is This Hair Drug Test?

As the name suggests hair sample is used in hair drug tests. It has the longest drug detection window of 90 days. If someone smoked pot and took a follicle test within 90 days he or she is going to test positive. The same goes for other types of drugs.

How Does Hair Drug Test Work?

When you use drugs, the drug metabolites get mixed in your bloodstream. From there it reaches every cell of your body. The drug residues go up to your hair follicles too via the blood vessel. That?s why when they test the hair sample of a drug user it detects the existence of drugs.

For the test, the lab assistant or a doctor would cut 1.5 inches of hair from the roots. But don?t be alarmed since they wouldn?t take only a small amount. They might collect the sample from multiple places on your scalp so it is not noticeable. Afterward, they would send the sample for analysis. Within a few days, you would have your test results.

How Long Does Marijuana Stay in Your Hair Follicles?

As mentioned, like any other drug marijuana stays in your hair follicles for 90 days. The drug detection window for follicle tests depends on the amount of time that usually takes hair to grow past the scalp. Another important fact here is the part from where the sample would be taken.

Reliable sources report that new hair starts to grow within 5 to 10 days. Also, each month our hair grows about .5 inches. And the lab testers need 1.5 inches of the hair sample from the roots to run a follicle test. So, if you do the calculation, it is easy to understand that you would need 90 days for complete detoxification. So, if you are a weed user and take a hair drug test before that you would test positive for marijuana.

What Can Be Detected in A Hair Drug Test?

It is possible to look for a particular type of drug through hair drug tests. But mostly your employer would like to know your drug history. For that, the testing laboratory would run tests to detect the traces of several substances. And these substances are:

  1. Marijuana
  2. Phencyclidine
  3. Cocaine
  4. Opiates
  5. Amphetamines

How Can You Beat a Hair Follicle Drug Test?

You can use a few methods to clean your system from THC in record time before undergoing the follicle tests. One of those is hair follicle drug testing shampoo. Now there is a ton of detox shampoos available but don?t get overwhelmed with them. You have to choose the best one to pass. To narrow down your search check out the following brands for better results.

Toxin Rid

Toxin Rid is a very popular choice among cannabis users. It removes the traces of drug residues in a minimum time. Toxin Rid has other products to help you cheat a urine drug test and saliva drug test. It might be a bit costly compared to similar detox shampoos. But the price tag should be a problem when your job is at stake.

People ask how long does weed stay in your system? And till this point, you know the answer. You have to stop using weed for 90 days to cleanse your system naturally. With this Toxin Rid shampoo, you can get the same results in just 24 hours.

Those who use marijuana occasionally can pass the drug test in 1 day. But heavy users should use the shampoo for 3 to 10 days. It can take more time depending on the type of weed user you are.


  • Very popular among marijuana users and have great reviews
  • The formula used in making this detox shampoo is very effective in removing impurities, and drug metabolites from the follicles.
  • In just a day you can pass the follicles test after using Toxin Rid if you are a light weed user.
  • It gets rid of toxins and drug residues without doing any damage to your scalp or your hair.


  • Some say the product isn?t that much available
  • It is very expensive as the price can go up to $300 in some of the outlets.

High-Voltage Detox

If you are looking for a shampoo that can detox your hair, comes cheap, and doesn?t compromise its effectiveness you should choose High-Voltage Detox Shampoo. It isn?t as popular as Toxin rid or Zydot Ultra Clean it provides great results. With each day, high-Voltage detox shampoo is getting more and more popular in the cannabis community because it costs only $35.


  • The formula of High-Voltage Detox shampoo has gone through a lot of tests to see if it really works in purging out traces of substances and it really does.
  • It helps to wash out THC from the follicles softly
  • The detox shampoo doesn?t damage your hair or irritate the skin of your scalp
  • The price is also reasonable unlike Toxin Rid

Ultra Clean from Zydot

If I have to rank based on effectiveness and popularity Zydot?s Ultra Clean would rank second on the list. Some even claim that the detox shampoo is as effective as Toxin Rid. Zydot?s Ultra Clean doesn?t come cheap but the price is lower than Toxin Rid.

The best part of this detox shampoo is the additional things you get with it. You get a conditioner and a purifying treatment along with it. After applying the shampoo to your hair and rinsing it you have to use the purifying treatment. It helps to penetrate the inner layer of your follicles and remove the drug residues. It also helps to clean your scalp nicely.

The conditioner is to mask the effect of using the detox shampoo. Detox shampoos hurt your hair health. It can make them dry and rough. The conditioner minimaxes the damage and makes your hair look soft, healthy, and shiny.It takes more time than Toxin Rid in removing the toxins. But if you use it as a part of a detoxification method it can boost the effectiveness leading to testing negative on the drug test.


  • It is a popular choice
  • Costs lesser than Toxin rid
  • Very effective in removing THC
  • Scientifically tested to find out the potency of the formula.
  • It works even better if paired with the Majuco detox method.


  • People with long and thick locks would probably need to buy more than one package of detox shampoo since the content doesn?t weigh much.

Home Remedy for Detoxification

Some people prefer to use natural methods to detox the body. While this might be a safe solution but it takes a lot of time. These home remedies only work if you stop taking drugs while you are on the detox program. To pass the follicle test you must refrain from using drugs for 3 months. So, make sure you are patient enough to wait a long period before you can use weed.

If you still want to know how to pass a drug test then do the following. Remember these remedies might take some time to work. So, if you do have time before you are scheduled to take the test then use the described methods. Otherwise, we recommend you use detox shampoos to pass a follicles drug test.

The Majuco Detox Method

This is one of the most effective home remedies which is widely used by cannabis users. With some basic ingredients, you can detoxify the hair follicles. It has many steps to follow but the result is worth the hassle.

For the Majuco method you would need the following:

  • Warm water
  • Zydot Ultra Clean
  • Goggles
  • Vinegar
  • Shower caps
  • Disposable gloves
  • Clean and Clear
  • Liquid Tide detergent
  • Detox shampoo

The process of using the method is described below. Follow them without missing any steps and your hair would be free of drug metabolites.

  1. Stop using weed to mark the start of your detoxification day. The Majuco method would do no good if you don?t stop marijuana consumption.
  2. Now massage some vinegar nicely on your scalp. After that use Clean and Clear and use it on your hair. You have to do this without washing the vinegar. Put on a shower cap when you are done applying clean and clear. You have to keep it like that for 30 minutes.
  3. After 30 minutes wash your hair. You have to rinse your hair two times after applying any type of detox shampoo. For that, we would suggest you use Toxin Rid. When you have washed your hair, you need to again wash it after using tide liquid.
  4. In the last step, you have to use Zydot Ultra Clean Shampoo and wash your hair clean. You have to remember which step is when otherwise the result won?t be that effective. Repeat the whole process three times before taking the drug test. You must repeat the process on your test day too.

Which Employers Use Hair Drug Tests?

Major companies prefer hair drug tests over other types of tests. It is common for trucking companies but other industries also use hair drug tests. I am listing some of them below:

  • Food industries
  • Oil and gas
  • Gaming industry
  • Financial industries
  • Auto manufacturing

The Do’s and Don?ts of Hair Follicle Drug Test


  • Stop smoking weed
  • Do regular exercise
  • Eat foods that help to boost the body?s detoxifying process
  • Drink a lot of liquid


  • Shaving your hair doesn?t help since lab testers would take a sample from elsewhere
  • Bleaching your hair doesn?t mask the existence of drug residues so even after bleaching you would still test positive.
  • Dying is as useless as bleaching because it cannot hide the traces of drug residues

Bottom Line

For any marijuana user, the news of drug testing is nothing less than a nightmare. To make things worse your employer can ask for a hair drug test which is hard to cheat. As a quick rescue, you can buy a detox shampoo to get rid of the traces of drugs. We have shared our pick of the detox shampoo. You can either use Toxin Rid or Zydot Ultra Clean. You are free to choose other brands too.

You would find people ask how long does THC stay in your system or how long does delta 8 stay in your system? In this article, we have tried our best to answer your questions. The methods described in the article for beating the test are the fasted way possible to pass with flying colors. It is better if you use the detox shampoos as a part of the Majuco method.