How To Pass A Hair Follicle Drug Test: Step By Step Guide Of 2024

Shefali Sinha

Recently, with the increase in drug tests, the high searches of ‘how to pass a hair follicle drug test’ have become evident online. Many consumers are looking for the quickest ways to detox methods.

Unlike urine drug tests, which can identify recent cannabis consumption, the hair follicle test only becomes effective after 5 to 7 days. However, this test can detect drug metabolites even up to 90 days after drug use. 

We know that to pass a hair follicle drug test can be stressful and even result in legal consequences. To tell you the truth, getting a positive result is not good for anybody, therefore we have come up with effective measures. 

As our team of experts researched and tested over 20+ brands, they have prepared a list of how to pass a hair test in 24 hours or less.

What is follicle drug screening?

The hair follicle drug test, also known as the hair strand drug test, relies on hair samples rather than the follicles themselves. This is because the top part of the hair contains a higher concentration of THC metabolites, carrying the toxins as it grows. 

When facing the test, the tester will carefully select hairs, opting for dense areas if the crown hair is scarce or collecting samples from body areas for bald individuals. The presence of toxins remains consistent throughout all the hairs in your body.

Despite various methods and hacks that may seem promising, it’s essential to debunk some myths surrounding the hair follicle drug test. These tests are highly accurate, making it challenging to cheat them. 

While synthetic urine is an alternative for passing a drug test, exploring more effective methods is crucial.

What hair drug test examines

The collected hair sample is subjected to drug testing by the tester to detect THC metabolites, indicating drug consumption within the past 90 days. The drug test covers substances such as marijuana, cocaine, ecstasy, amphetamine, PCP, methamphetamine, and opioids like morphine, codeine, and 6-acetyl morphine. 

While some countries have legalized cannabis for recreational use, many employers still conduct drug tests to maintain drug-free workplaces. 

These tests may be administered during the hiring process and periodically for current employees, serving as a tool to identify drug abuse among at-risk individuals.

If someone suggests that simply abstaining from cannabis products for a few days will help you pass a hair drug test, they are mistaken or attempting to deceive you. 

Hair follicle tests have a detection period of 90 days, and you won’t receive a three-month advance notice for such tests. 

Consequently, giving up weed consumption for at least 120 days is essential to stand a chance of passing the test and avoiding detection.

How does drug testing on hair work?

When you smoke cannabis, it enters your bloodstream and eventually spreads throughout your body. 


Over time, THC metabolites find their way into your hair follicles through oils secreted by the glands on your scalp. These metabolites can remain in your hair for months, potentially leading to positive outcomes in drug tests.


If you’re preparing for a drug screening, you may wonder about the time frame a hair follicle drug test covers. To answer this, it’s essential to understand the test’s core principle.


During the test, a technician will cut a 1.5-inch strand of hair near your scalp. This length can detect substance use or its absence within the last 3 months. So, if you’re concerned about how long THC stays in your hair, the test can reveal marijuana usage over the past 90 days.


While bleaching your hair might seem like a cosmetic makeover, it won’t deceive chemical scientists. Despite being mentioned as a potential hack on some online drug detox forums to pass hair drug tests, this method only has a 40% success rate. 


Besides, frequent bleach treatments can damage your hair significantly. Unless you’re willing to take the risk, it’s best to consider other options, as this approach may not be a reliable solution.

You can, of course, shave all your body hair, including that of your head. But be ready with a good excuse to give your employer. Your “going bald” is a big giveaway that you’re trying to avert getting tested. Hair follicle tests require a minimum of a 1.5-inch sample.


And, if you cannot present a valid reason for going bald to your boss, you’re probably going to get fired, or, at best, be placed on probation while they wait “patiently” for your hair to grow back.


Now that you know which hacks don’t work for a hair follicle drug test, find out which methods do.

Effective Ways On How To Pass A Hair Follicle Test

Best THC Detoxifying Shampoo For Hair Test For Weed

Old Style Aloe Toxin Rid Shampoo - theislandnow

One of the easiest and most discreet methods to pass hair drug tests is by using the Old Style Aloe Toxin Rid Shampoo. The unique formulation of this product helps you pass the hair test by using it 24 hours before you take the test.


You can even use the shampoo on the day of the test. You can use the product daily or 3–10 days before the test. If you don’t have much time in hand, you can take multiple showers in a single day, too.


Remember that you have to properly lather the hair with the shampoo and leave it in for at least 10 to 15 minutes before washing it out. If possible, use the shampoo 15 minutes before the test to get the most effective results.


The best way to use the shampoo is to start by applying any regular shampoo and then rinsing it off. Then, apply a dime-sized portion of the Old Style Aloe Toxin Rid Shampoo. After massaging your scalp and hair well and leaving it on for the recommended 15 minutes, rinse it completely and follow with your regular conditioner.

Don’t forget to focus on your scalp while massaging in the detox shampoo. The toxins generally accumulate more in your scalp and hair roots. The goal here is to remove all the old layers of oil from your hair and scalp.


The product’s innovative deep cleansing formula will not only cleanse your hair but also delicately remove all the toxic chemicals, environmental pollutants, residual drug buildup, hair impurities, chlorine, and hard water minerals. To procure a gradual release, this shampoo works with their advanced microsphere technology.


One of the cheap alternatives to the Old Style Aloe Toxin Rid Shampoo is the Ultra Clean Shampoo by Zydot, as it claims to leave your hair in a pure and pristine state that is free of unwanted impurities and contaminants, all for a cheaper price.

Recommended For Hair Follicle Drug Test

Zydot Ultra Clean Shampoo - theislandnow

The Zydot Ultra Clean Shampoo comes with an internal hair purifying treatment and conditioner. As it removes all the external barriers to expose the inner hair, the purifier does its work by penetrating deep into the scalp, hair follicles, and hair shafts to dissolve and remove all the toxins and impurities.


Finally, the conditioner adds sheen to your hair and controls the frizzes and tangles, making your hair smoother and more manageable.


Note: But unlike the Aloe Toxin Rid Shampoo, the Ultra Clean Shampoo will not help you clear the hair follicle drug test independently. When you use it as a part of your thorough cleansing and detoxifying process, it definitely helps. But it might take longer. So, don’t forget to detox your hair before the test day.


Pro tip: You must avoid and/or wash all items that you may have previously used to avoid any accidental reintroduction of the toxins into your system. All clothing and accessories that may have been in contact with your hair may still carry the toxins or toxin-laden hair follicles that could contaminate your hair and body once again.


Such items include hats, headbands, beanies, pillowcases, scarves, bandanas, shorts, tops, ear accessories, etc.

#2. Home Remedies

You can also use some home remedies, which might be easier on the wallet. But bear in mind that these methods take a longer time to prepare and execute.


Most home remedies involve some affordable ingredients that you can easily find in your kitchen, such as detergent, lemon juice, baking soda, sea salt, vinegar, etc.

The Jerry G Method

The Jerry G method presents an effective solution for eliminating drug toxins from your hair, named after its inventor, Jerry G, a marijuana enthusiast who introduced it in 2008.


This technique involves using potent ingredients that break down the hair cuticle, allowing the chemicals to penetrate all layers of the hair and successfully eliminate drug residues.


The Jerry G method has proven effective in cleansing hair of weed metabolites. However, it’s essential to note that this process requires a minimum of 10 days to complete and may cause significant damage to the hair.


To perform the Jerry G method and achieve a negative drug screen, you will need the following items:


  1. Permanent hair dye with ammonia, closely matching your natural hair color
  2. Old Style Aloe Toxin Rid shampoo
  3. Zydot Ultra Clean shampoo
  4. Peroxide Bleach
  5. Baking soda paste
  6. A set of combs, brushes, towels, and hair accessories to prevent re-contamination

Warning: If you have sensitive skin, these methods could prove to be extremely painful and even detrimental to your skin health. Skin rashes resulting from such treatments would also serve as tell-tale signs of tampering with the test sample (hair).

#3. Abstain from Weed for at least 90 days

Some research surveys showed that traces of cocaine disappear from hair after the subjects stop consuming the drug for at least 90 days. 


According to a study, the subject- a woman, had stopped consuming cocaine after year-long drug abuse. Her hair samples were regularly collected over a period of more than 10 months to monitor the chemical changes. These samples were then exposed to a series of chemical analyses to test for drug residues.


The results revealed that the level of cocaine in her hair significantly dropped in the course of the first three months after her last consumption. 


After that, no traces of cocaine were noticed in her hair after about 120 days – even in the sections closest to the roots.


But this is barely a strategy, especially if you do not know the date of the drug test in advance (90 days in advance to be precise). Usually, knowing that far in advance is not possible anyway. As a result, there are more effective solutions to your problem than this.


In general, daily activities do help reduce the level of drugs in your body. 


But the process is gradual. Regular washing and detoxification help flush out the toxins from your body in addition to various daily activities, ultimately reducing the level of drugs in your body. After about three months, the level is usually negligible.

Can You Remove Metabolites From Hair?

A hair drug test targets the inner part of the hair shaft, not the outer layer. This is because as hair grows, nutrients from the bloodstream nourish it, and the metabolites from the drugs consumed get trapped in this section of the hair. 

Since drugs circulate through the body via the veins and arteries, their metabolites become part of the hair growth process and cannot be removed once embedded.

Consequently, shampoos or detox kits that claim to cleanse the hair’s outer layer are ineffective. 

Although these products might slightly reduce the quantity of metabolites, regular drug users usually have numerous metabolites present, making it unlikely for the test to turn out negative even with detox attempts. 

Shaving the head and hair may postpone the test, but the hiring company will receive the result eventually, raising suspicion during the hiring process.

Despite being more costly than other drug tests like urine and saliva tests, the hair drug test is highly accurate and can be used as evidence in court.

FAQs Related To 'How To Pass A Hair Follicle Drug Test'

No, it’s highly improbable. A single instance of drug use will not lead to a significant substance concentration that can be detected through a hair test.

Similar to other substances, a hair test can detect marijuana usage within the past 3 months.

Hair drug testing has the capability to detect a variety of drugs and substances, including Benzodiazepines, Cannabis, Cocaine (including Crack Cocaine), Ecstasy (MDMA), Ketamine, Mephedrone (M-Cat), Methadone, Methamphetamine (including Amphetamine), and Opiates (including Heroin).

Detox shampoos may cause side effects like skin irritation, redness, itchiness, and dryness, especially those containing harsh chemicals that strip the hair of its natural oils.


To avoid these discomforts, we have carefully selected the best options available, including Old Style Aloe Toxin Rid and Zydot Ultra Clean. These products deliver excellent results without any unpleasant side effects.

The hair follicle drug test can pick up drugs you used within the last 90 days. This is because hair grows about half an inch every month. So, in 3 months or 90 days, it may grow an inch and a half, which is the ideal length of hair required for a standard hair test.


Body hair might have a longer lookback period as it does not grow like the hair on your head.

Yes. All kinds of human hair can be used for hair follicle testing, even those on your eyebrows, hands, fingers, and toes, etc.

No detox shampoo comes with a 100% guarantee. However, some do come with a 99% success rate, such as the Old Style Aloe Toxin Rid Shampoo. It is the closest product to grant a foolproof solution.

Unlike regular shampoos, drug detox shampoos come with a unique proprietary formula to help provide the desired results. It is impossible to duplicate these in lower-quality shampoos. This is why the Old Style Aloe Toxin Rid Shampoo holds a monopoly over the market. It is the only detox shampoo that comes with the highest success rate.

Since the Aloe Toxin Rid Shampoo arrived on the market, it has remained the most preferred detox shampoo for passing a hair follicle test. No other product on the market has been able to beat its success rate so far.

Some prescribed drugs can lead to a false positive reading of your hair follicle drug test. Because of this, you may need to explain to your employer, along with some proof, about the components of your prescribed drugs that you have been using over the past three months.

Yes. If you took drugs just one time in the last 90 days, you could still test positive for it.

The Jerry G is the most recommended home remedies for detoxing your hair before a hair follicle drug test. 


Usually, these home remedies involve ingredients such as aloe vera, vinegar, or clay powder. However, these are not strong enough to remove THC or any other hard drug residue.


As a result, you will also need to use some type of detox shampoo, such as the Old Style Aloe Toxin Rid Shampoo, for the complete result.


These methods are especially useful when you have a very short time before a hair test. When combined, they should accelerate the detox process.

Final Thoughts: How Long Do You Need To Pass A Hair Follicle Drug Test?

Passing a hair follicle test is indeed challenging due to the stringent sample collection process, extended detection window, and the test’s accuracy, making cheating difficult. However, this article offers potential solutions to flush THC metabolites from your hair successfully. Strictly adhering to the instructions and maintaining a healthy diet are crucial for success.


For optimal results, consider using both the Old Style Aloe Toxin Rid Shampoo and the Zydot Ultra Clean Shampoo together, as they work synergistically to remove drug compounds from your hair.


For added assurance, you may also consider trying other drug tests to gauge your status. By following the advice and utilizing the products mentioned in this article, you can significantly increase your chances of passing the hair follicle drug test.

About the author

Shefali Sinha

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1 Comment
  • It’s been a year since I’ve last used and I might have to test for probation how far back does probation test for

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