How to Successfully Pass a Hair Follicle Drug Test For Weed

What is a hair follicle drug test and how does it work?

A hair drug test, also known as a hair follicle drug test, is a type of test that analyzes for the presence of drugs and illicit substances in a small quantity of hair obtained from the head or other parts of the body of a person. In most cases, hair samples are obtained from the head, but on some occasions e.g. if a person is bald, the hair sample will be obtained from other areas.

A hair follicle drug test result chart shows whether a person has used drugs within the last three months. In other words, this type of drug test has a longer detection period than blood, urine, or saliva drug tests. For instance, a saliva drug test can only analyze drug use within 24 to 72 hours. Blood and urine drug tests have detection time that is in between, but hair drug test has the longest detection period.

That being said, a hair follicle drug test is unable to determine whether a person has used illicit substances or drugs within a few hours before the test. In most cases, a hair follicle drug test is required for employment where it is crucial for employees to stay away from drugs and illicit substances. These subjects include law enforcement e.g. police, government agencies such as the FBI, but also occupations like truck driving. The University of Richmond School of Law’s Journal of Law and Technology reports the utilization of hair drug tests has become common in the legal industry, particularly in instances when court-ordered drug testing is required. Some examples of cases that rely on metabolites levels found by hair follicle drug tests in the legal industry include probation, divorce, and child custody.


Aloe Toxin Rid Shampoo + Zydot Ultra Clean

  • It’s an integral component of The Macujo Method!
  • It’s an integral component of The Jerry G Method!
See Deal →

Zydot Ultra Clean Shampoo

  • This is shampoo and conditioner that purify hair to remove and eliminate accumulated chemicals, medications, and other impurities stuck in the hair shaft.

Hair follicle test sample

When is it used?

According to the White Paper of the American Society of Addiction Medicine (ASAM), the Department of Health and Human Services-certified laboratories are obliged to report the quantitative values of all drug tests associated with the Department of Transport to MRO. This requirement is related to workplace testing. Additionally, judges and lawyers may require quantitative values in certain scenarios. A hair follicle drug test is used to track for the presence of multiple drugs and substances including hallucinogens like cocaine, ecstasy, cannabis, PCP, stimulants such as methamphetamine, benzodiazepines like Xanax, and opioids such as oxycontin. The hair follicle drug test may also analyze for the presence of designer drugs such as Spice.

Generally speaking, a sample of 1.5” of hair covers 90 days. However, theory suggests this kind of drug test could analyze for drug use longer than 90 days in persons with long hair. Do you need to cut your hair, then? It’s easy to assume older hair has a decreased drug residue density and may have naturally detoxed with time. That being said, the longer a person’s hair is, the more it can tell about the drug use of a particular individual. In other words, more “records” of drug use can retain.

Now the question remains where do they obtain hair samples from? Is it from the ends or near the scalp? The latter is a correct answer – near the scalp. We will provide more info about this particular subject further in this post, as we share more info from our research. But first, it’s useful to remember detox to pass a drug test is considered an illegal activity in some parts of the U.S. Therefore, please check legislation or law regarding this subject in the region of your residence.

How does this drug test work?

Before we focus on how to pass this drug test, it’s useful to address how it works first. The process starts when 1.5” of hair is obtained from a person. The hair sample is taken from the area close to the roots. Considering the fact your hair grows ½ an inch a month, on average, the obtained hair sample will analyze for drug use within the past three months. The lab technicians or testers evaluate the sample to detect chemical signatures or drug metabolites present in it. Bearing in mind that metabolites of drugs and other substances tend to bind to a natural skin pigment called melanin, men and women with darker hair tend to maintain these chemical signatures or metabolites longer than their counterparts with a lighter color of their hair.

Testing Process

Upon extraction of a hair sample, the tester may get it washed and evaluated for environmental contamination. A washing could decrease the false positive likelihood. The main reason drug metabolites reach your hair is blood-borne molecules. That’s exactly why regular store-bought hair products including shampoos are unable to eliminate residues of drugs completely. However, it’s possible to find detox shampoos, but we will discuss them further in this post. The next step in the testing process that lab technicians are going to take is to dissolve hair samples into solvents. The tester then goes on to perform an analysis of the liquid obtained by soaking your hair sample. A vast majority of laboratories rely on two tests in order to ensure the accuracy of results.

One of these methods is an ELISA test. ELISA stands for enzyme-linked immunosorbent assay. This test evaluates the manner of interaction between antibodies interact and any substances in the sample. The result, whether positive or negative, is available within 24 hours from this particular test.

The 2nd analysis is chromatography/mass spectrometry or GC/MS test. This test is highly powerful because it has the ability to detect up to 17 different drugs. The GC/MS test helps testers exclude false-positive test results provided by the abovementioned ELISA test. The mechanism of action of a GC/MS test is quite simple. It revolves around injecting the sample into a gas chromatograph, a machine created specifically to separate substances found in the provided sample. It separates the substances according to size and polarity. Then, every component is transferred inside a mass selective detector that serves to detect drug residues. In other words, GC/MS breaks substances apart and analyzes all components individually.

Levels Chart: What does the hair follicle test detect?

Hair follicle test levels chart

The chart displayed above is obtained from the company involved in the business of drug testing. As you can see, the chart reveals low doses of some drugs or substances give you more chance to successfully beat a hair drug test. In these cases, passing a drug test could be possible without a detox even. That being said, you can’t achieve this with high doses. Let’s take cannabis as an example. The amount of weed found doesn’t relate to the actual use. That happens because in some people the body can eliminate cannabis metabolites faster than in others. Factors that affect the rate at which the body eliminates metabolites include weight, height, frequency of cannabis use, and the body’s metabolic rate.

Detection times with hair follicle drug test

Hair follicle drug test detection times

The hair drug test 90-day detection window is demonstrated in the chart above. A lot of businesses and organizations also test for the presence of nicotine. The reason is simple – smokers are more likely to develop various health problems and thereby increase the healthcare expenses of some companies.

Comparison with other drug tests

Compared to saliva, blood, or urine drug tests, hair follicle drug tests are not as common. But, these tests are known for their accuracy and the longest detection period. That being said, this type of drug test is noninvasive, unlike blood drug tests.


  • Detection period of 90 days
  • Highly accurate
  • Non-invasive (unlike blood test)
  • Able to spot the use of a wide spectrum of substances and drugs
  • May estimate when drugs or substances were last consumed


  • Compared to urinalysis, which is low-cost, hair follicle drug tests cost more
  • Not popular and less frequently used

When it comes to successfully beating a hair follicle drug test two approaches are the most popular. These include the Macujo and Jerry G methods. While we can’t be sure that most people who pass this kind of drug test achieve it intentionally, many of them are and they do accomplish it within the 90-day detection period. It is unclear where these names came from but if you know, leave a comment below. So, how are they making it happen?

How to beat hair follicle drug test in 2 days i.e. 48 hours – the Macujo Method

Tools you need:

  • Goggles
  • Disposable gloves
  • Clean and Clear’s acne wash (pink)
  • Liquid Tide detergent (a pack)
  • Sink
  • Shower cap
  • Towel
  • Warm water
  • Toxin Rid Shampoo with aloe, or any other aloe-containing shampoo (preferably Zydot Shampoo’s Ultra Clean detox shampoo)
  • Vinegar

As you can conclude some of the listed ingredients aren’t exactly safe to use on your hair. For that reason, if you have at some point in your life, experienced an inflammatory reaction from applying any product or substance on your scalp or skin, you should skip this method. If you have high levels of inflammation or deal with allergies, you may have a reaction to these products. Additionally, abort this method if these products or ingredients cause a burning sensation on your scalp. Pain induces inflammation, so you need to bear that in mind.

Two scenarios may occur. One scenario is where the pain you experience causes damage, but in the second scenario, the immune system is producing this sensation to combat or neutralize perceived threat. It’s useful to remember that we neither invented nor we are recommending the use of this or other methods. The main purpose of this text is to just describe these techniques in a way they are practiced by users and to report anecdotal or scientific findings.

The Macujo Method Instructions:

  1. Start it off with vinegar. According to the original instructions, you should rinse your hair thoroughly, but you may want to avoid that. Doing so would just add yet another barrier on top of hair oil. The objective here is to eliminate the oil from your hair. That is the only way to reach the follicle and break open it in order to wash toxins out. Unless you have a sensitive scalp, you may benefit the most from the straight vinegar. Work it into the roots. Keep in mind, they will analyze the first 1.5” of hair from the roots. However, you shouldn’t cut your hair. Testers would just go on and obtain it from other parts of the body e.g. your armpit. Obtaining a hair sample from the pubic area is unlikely, but still possible if you are applying for a job in a strict workplace such as the FBI. However, under no circumstances should you put any of the abovementioned ingredients onto your genital area. Your best bet is to follow the rules and avoid cutting your hair.
  2. Next, apply Clean and Clear onto hair, making sure vinegar is still in your hair. Leave this in for 30 minutes with a shower cap on. The purpose of a combination of these liquids is to open up hair follicles and gain access to metabolites produced by drugs, which are found in your hair.
  3. Then, thoroughly rinse your hair. Get all the liquids you applied so far out of your hair.
  4. Once you’ve rinsed your hair thoroughly it’s time to wash it with Toxin Rid Aloe Shampoo.
  5. Persons who swear by this method insist the old patented shampoo is the best option. If you can’t find this product in particular, get another aloe vera-containing detox shampoo. Aloe is important because it can protect against inflammation of the scalp. Another option is to try Zydot Ultra Clean, the product that is scientifically proven to free your hair from drug metabolites. [3]
  6. Repeat the shampoo and rinse.
  7. Your next move is to use a couple of Tide laundry detergent drops to wash your hair. If you’re not a fan of this approach or you have problems with itchiness, you can skip this part. But, you do risk failing. It’s up to each person to decide. Keep in mind, if you choose to wash your hair with Tide detergent you risk the health of your hair and scalp.
  8. Lastly, use Zydot Ultra Clean to shampoo your hair just prior to the test.
  9. Repeat this method three times one day prior to the test, and one time on the test day. This should allow hair follicles to break open and wash out drug residues.

Is the Macujo method effective?

As far as we know, at this point, no scientific evidence backs up this method. That being said, many regular drug users have reported they passed drug tests successfully with the Macujo method. Also, numerous masking agents and detox products that were considered myths have since been scientifically proven to pass drug tests. In turn, drug companies keep evolving and they are trying to develop new methods to hold off any cheating-related methods.

If you stumble upon a new safe and effective substance to add to the equation, you may find something effective that will take testers and scientists several thousands of dollars and many months to analyze and inspect to determine how to detect or get one step ahead. With this strategy, you have a higher risk of damaging your hair and scalp. It’s important to wear gloves and goggles to protect your hands and eyes from these chemicals. Don’t follow this method unless you’re doing it for really important reasons such as employment. If it is not your method, try Old Style Aloe Toxin Ridand Zydot Ultra Cleanbetter.


Aloe Toxin Rid Shampoo + Zydot Ultra Clean

  • It’s an integral component of The Macujo Method!
  • It’s an integral component of The Jerry G Method!

Zydot Ultra Clean Shampoo

  • This is shampoo and conditioner that purify hair to remove and eliminate accumulated chemicals, medications, and other impurities stuck in the hair shaft.

Guide to Clear THC from Your Hair Over Ten days, Jerry G Method

Now we’re going to address another popular method for a hair detox. This method is called the Jerry G. method. Supposedly, Jerry G is the name used by a real person on websites and forums associated with drug tests. It looks like this guy really exists. First, if you haven’t bleached your hair ever, you should be cautious when you decide to do this. Adhere to all instructions and most importantly, don’t attempt doing anything you normally would not do. Again, stay away from this method if you have issues with allergies or inflammation.


  • Step 1: Stop smoking marijuana for at least 10 days.
  • Step 2: Bleach hair using a hair color with ammonia. You should do this on the same day you stop smoking. This move aims to open up hair cuticles more effectively and flush out their contents. It can work because bleach alters hair pigment and thereby it can access drug metabolites in hair follicles, eliminate them, or modify their structure. If you have already colored your hair and experienced no hair damage or burning sensations on your scalp, then you will hopefully have the same experience with this method.
  • Step 3: Wash your hair using a high-quality detox shampoo like Toxin Wash. According to some people, you may have to purchase aloe-containing shampoo such as Toxin Rid with Aloe. This theory may or may not be accurate. Do some research and decide for yourself. Let us know in the comment section below.
  • Step 4: On day 10, bleach and dye your hair for a second time. Again, use the aloe vera-containing shampoo like Toxin Rid with Aloe. Anytime a detox shampoo is necessary you can substitute Ultra Clean. It is affordable and works.
  • Step 5: On the drug test day, consider adding baking soda paste onto your head. The use of baking soda is harmless, which is a good thing to know if you’ve never done this before. Leave the baking soda in your hair for 15 minutes and then wash it off. This action neutralizes acids in your hair. Plus, it could also wash out or neutralize any drug toxins. Shampoo once more with the Aloe-based detox shampoo.
  • Step 6: Use Zydot’s Ultra Clean Shampoo to shampoo your hair.

When it comes to breaking open the hair cuticles and removing toxins, this method has good theoretical underpinning. After all, it gets into your hair. Otherwise, it wouldn’t be able to change the pigment. This method is right for you if you have already dyed your hair before and didn’t experience anaphylaxis. Make sure to read the label and check all ingredients to see whether you are allergic to any of them. Compared to the methods we discussed, this method appears to be a safer option. Dye your hair twice and proceed to use a detox shampoo to wash it. Sounds quite safe in my book.

Home remedies for hair drug detox

Despite the fact hair bleaching before the test appears to be a logical method to beat hair follicle drug test if you show up with hair that looks bleached it’s possible that the test admins could obtain hair samples from the genital or armpit area. If you opt for bleaching your hair, use both bleach and hair color. Why? It’s simple, bleach may oxidize melanin in hair, but hair color will give you your natural color back. As a result, your hair will not look bleached. Additionally, a combination of color and bleach may conceal remaining drug metabolites.

This is a scientifically studied approach. The International Journal of Legal Medicine (Jurado, Kintz, Menendez, and Repettoo, 1997) published a study whose main objective was to compare bleached/dyed hair with untreated hair. Researchers focused primarily on bleaching and dying. Hair bleaching involves the use of a bleaching agent to treat some hair locks. The main objective here was to lighten hair color. At the same time, other locks remained untreated and retained their natural color. On the flip side, hair dying included the use of a coloring formula to provide cosmetic treatment of all hair strands. In bleached samples, the only requirement was that a subject i.e. a drug user was the test participant. However, with dyed samples the hair shaft segment needed to be left untreated.

How they affect drug test results

Even though the length of these segments varied from one case to another, with each test subject, the contrast between treated and untreated hair was clear. Ten female drug users had their hair samples tested for opiates, hash, and cocaine. Five participants (nr. 1-5) underwent hair bleaching whereas the remaining five participants (6-10) had their hair colored. Some of the subjects in this study were multi-drug users.

Researchers looked at opiates in six cases including four dyed samples and two bleached. Cannabis was tested for in four subjects (three hair coloring samples and one from the bleached group). Nicotine was also researched in eight samples of hair provided by subjects from France. All donors reported tobacco use, but not the use of any other substance or drug. The bleaching method was used to treat their hair samples. It’s also useful to mention all participants from this study were living and their hair was treated before samples were collected.

Recent findings

Researchers found detectable residues of drugs declined, in every case, compared to the untreated hair samples. Additionally, results showed reduced detectability levels for drug metabolites were strongly associated with the extent of hair damage. Therefore, if you want to detox your hair effectively before the drug test, you need to expect to induce hair damage. That being said, damage should be somewhat controlled. It is important to avoid being too obvious otherwise testers would assume you are trying to beat the test. What we can conclude based on these findings is that damage to your hair is the secret to passing a hair follicle drug test successfully. Again, these efforts are not for everyone.

The following metabolites of drugs decreased by 40-60% according to the results:

  • Benzoylecgonine
  • 6-diacetylmorphine
  • Codeine
  • Cocaine

For most people, this is enough to pass a hair test for drugs. Therefore, you could benefit from using the method with bleach and dye instead of too damaging techniques (to your hair). Of course, you may consider these methods only if you’re desperate and need a quick and fast solution. Findings revealed detectability of morphine decreased by over 60%. Morphine addicts should seek proper help to successfully overcome their addiction. As far as THC is concerned, this decrease was just 30%. The case with THC and other drug metabolites, of course, is that you need to abstain from these substances as long as possible before you take the step.

Abstinence is the first step before you start a hair detox routine. In the study, the percentage of THC that remained was higher than that of THC-COOH, which is a metabolized version of THC. The researchers analyzed the samples in detail and confirmed the choice of method didn’t matter. Whether bleaching or dying methods were used was irrelevant. The only thing that matters is the extent of hair damage. That’s why you probably won’t avoid damaging your hair if you really want to pass this test successfully.

Hair detox Dos and Don’ts

DO: Cause significant damage to your hair

Unfortunately, if you want the pre-test detox to work you will need to damage your hair. This is the key to succeed and effectively pass a hair drug test.

DON’T: Smoke prior to the test

You shouldn’t smoke before the test because it’s necessary to abstain from drugs including cannabis for as long as possible before the testing day. This goes without saying, but it’s useful to remind yourself of the basics.

DON’T: Shave

Although it may seem like the natural course of events, you should avoid shaving your head. Why? Well, the testers will still obtain a hair sample. They can get a hair sample from your pubes or armpits. Shaving the entire body could raise suspicions and lead to various consequences. Even if you have no hair whatsoever to provide a hair sample, the tests will just switch to another test and ask for a urine sample or blood test. In the most serious scenario, they can disqualify you immediately. This is, definitely, not the right approach.

Common tricks that won’t help you beat a hair drug test

The internet, especially social media platforms, is a rich source of tips and tricks to beat hair follicle drug tests. One of the most popular tricks that won’t work is using a wig. Someone i.e. test administrator can recognize you’re wearing a wig, particularly if the wig isn’t even high-quality. But, even if you invest in a really good wig, the testers can still see it’s not your own hair. Remember, lab technicians and test administrators have dealt with a wide range of tricks and excuses, so they can easily recognize these things.

Yet another trick that won’t have much success is the intake of detox pills. Let’s think about it for a second, what can detox pills do in hair follicles? In order to beat a drug test, you need to reach hair cuticles so they can break open to flush out drug metabolites and other residues. In these cases, pills can’t do much. However, they can help you pass other types of drug tests such as urinalysis.


Q: How long does cannabis remain in hair follicles?
A: Cannabis will likely remain for 90 days in hair follicles, but possibly more in some cases.

Q: Can I pass a hair drug test for cannabis if I cut my hair?
A: No, it can’t. The testers will simply obtain hair samples from other parts of the body, use other drug tests, or disqualify you immediately.

Q: If I wash my hair with Zydot Ultra Clean once only, will I give a clean sample?
A: The answer would be – no. Studies show it’s necessary to wash your hair multiple times with this shampoo to pass a drug test. Or you can use the shampoo with Jerry G or Majuco methods, or perm your hair.

Q: Can hair cleansing products work without a detoxifying routine such as Jerry G Method to pass a drug screen?
A: Yes, it is possible. Essentially, you need to damage your hair to pass a hair follicle drug test.

Top shampoos for hair follicle drug test: Pros and Cons

Old Style Aloe Toxin Rid

This is among the most popular and effective shampoos for detox on the market. The shampoo has a lot of positive reviews and testimonials left online by users who passed the hair drug test successfully. At a first glance, the costs may seem on the higher side, but if you aim to get or save employment chances or a job position the price is not as high as it seems. When you purchase Old Style Aloe Toxin Rid Shampoo you may also receive Zydot Ultra Clean for FREE. Of course, to get the free shampoo you need to make your purchase at the right platform. For that reason, you may want to check vendor deals such as When you make the right moves, you can cover expenses associated with Jerry G or Macujo’s methods with these purchases.

Top Detox Shampoo to Pass Hair Follicle Drug test of Our Choice: Zydot’s Ultra Clean

You probably recognize the name of this shampoo from the methods to pass the hair follicle drug test we addressed earlier. This product is highly popular and it’s also our choice for the best detox shampoo you can find near you today. Plus, you can buy it for less than $40. It is most likely you won’t consider shampoo to be any special. What you have to do is buy a product that eliminates residues and oils from your hair. Of course, people don’t normally purchase hair products such as shampoos to purposely induce hair damage, but the truth is, that is necessary so you can pass the test.

The reason Zydot is our top choice is that the product has been carefully examined and is confirmed scientifically it can remove drug metabolites and residues from a person’s hair. Keep in mind it’s necessary to use the product a few times (3 times minimum), if we presume it will eliminate the same 30% of residue on every occasion, amassing to 90%. This calculation is rough but it can be more beneficial than washing your hair once only.

Zydot Ultra Clean Detox Shampoo

The goal is to make sure your hair is damaged, but not intact. You need to bring all signs of tampering to a minimum, so strive to avoid using hair dyes that are not in your natural hair color.



  • Aqueous extract of aloe vera
  • Alpha-glucan oligosaccharide
  • Avocado oil
  • Caprylic/capric triglyceride
  • Guar hydroxypropyltrimonium chloride
  • Cocamide DEA
  • Butyl methoxydibenzoyl methane
  • Cocamidopropyl betaine
  • Hydrolyzed Wheat Protein
  • Ceramide 3
  • Carbon
  • Octyl methoxycinnamate
  • Methylisothiazolinone
  • Polyglyceryl-3 diestearate
  • Citric acid
  • Tetrahexyldecyl ascorbate
  • Fragrance
  • Stearyl alcohol
  • Cetearyl alcohol
  • Propylparaben
  • DM DM hydantoin
  • Hydroxyethylcellulose
  • Propylene glycol
  • Sodium laureth sulfate
  • Diestearyldimonium chloride
  • Panthenol
  • Polyquanternium-10
  • Methychloraisothiazolinone
  • Sodium chloride
  • Potassium chloride
  • PPG-10 cetyl ether
  • Sodium thiosulfate
  • Methylparaben
  • Stealth-2
  • Sodium PCA
  • Tetrasodium EDTA
  • Tocopheryl acetate
  • Triethanolamine
  • Water
  • Wheat Amino Acids

The ingredients seem basic, like those in any other shampoo and it’s not too expensive, which is another advantage. Plus, it contains aloe vera, which can decrease redness and swelling that you may develop after you apply those substances on your head, for a good reason we suppose.


Hair follicle

Is it really possible to beat a hair follicle drug test? Science says it is. And so does social media. Our answer is also yes. Of course, there’s a catch. What’s the catch here? Well, you have to produce hair damage and crack open hair follicles to remove all drug metabolites. The best option is to dye hair more than once or twice even.


Should you bleach or dye your hair

It is necessary to do both bleach and dye, because their combination will work better than either of them individually. The abovementioned study found over 60% reduction in morphine, an example of a drug metabolite. The result is incredible and shows it’s a lot more effective than using detox shampoo alone. Hair damage is important if you want to pass this type of drug test successfully. The extent of damage depends on you.

Keep in mind in some areas and states in the U.S. it is not legal to perform detox to pass a drug test. Research this subject beforehand. You should also research the ingredients of products you’re planning to use for detox to be confident they will not cause allergic reaction. Be careful, take this information seriously. Even though hair damage is important, you should be careful not to overdo it. Otherwise, you’d raise suspicions among the testers.

Of course, you also want to avoid permanent damage. Your hair grows at a rate of 1.5” in 3 months on average. Testers and test companies aren’t allowed to test more than an 1,5” of hair because that will be looking at whether a person has used drugs over 90 days ago. The law is on your side there. You can easily find recipes of DIY remedies, but are they reliable? Try Old Style Aloe Toxin Rid or Zydot Ultra Clean instead. Therefore, if your goal is to pass the hair drug test, you have tons of options including dye, bleach, and shampoo. Good luck!


[1][2][4][5] “How to pass a hair follicle drug test? – Kids as Self Advocates.” 12 Jan. 2019, Accessed 13 May. 2020.

[3] “Effect of the shampoo Ultra Clean on drug … – NCBI.” Accessed 15 May. 2020.