Best Shampoos to Pass Hair Follicle Drug Test in 2024

Robert J. McGrath
Robert J. McGrath, Ph.D

Last updated on 2024 May 28

Navigating a hair drug test can be daunting. Luckily, I’ve gathered some best shampoos to pass hair follicle drug test. These shampoos are not only effective but also come with a guarantee.

The best part? No extreme measures needed.

No bleaching, shaving, or damaging your hair and scalp.

These methods are gentle yet effective.

Plus, you won’t be juggling multiple products or spending a fortune. All this to ensure you don’t miss out on job opportunities due to a hair drug test.

Let’s dive into the details.

Old Style Aloe Toxin Rid Shampoo
aloe toxin rid shampoo
  • Highly effective for drug tests
  • Effective for heavy users
  • Suitable for dreadlocks and dark hair
  • Used in Macujo and Jerry G methods.

Do detox shampoos actually help pass a drug test?

Studies confirm that detox shampoos can indeed help you pass a drug test.

But remember, not all shampoos that promise to cleanse and purify are up to the task. You need a special detox shampoo designed specifically for drug test preparation.

These are particularly good at removing drug traces like marijuana, cocaine, and morphine from your hair.

Let’s simplify a study for better understanding.

Imagine your hair as a diary of what’s been in your body. Scientists check this ‘diary’ to see if you’ve used drugs.

The study tested whether certain products could effectively erase some of these drug ‘entries’ from your hair. They looked at common items and some special shampoos claimed to clean out drugs from your hair.

They treated hair samples with things like vodka, regular hair tonic, special drug test detox shampoo, disinfectant, and even Head and Shoulders shampoo.

What they found was pretty interesting.

These treatments could reduce the drug traces by about 52% to 65%. Drug test detox shampoo stood out as one of the more effective options.

And you couldn’t even tell the hair had been treated just by looking at it.

So, when it comes to passing hair follicle drug tests, the right detox shampoo might just be your secret weapon.

Another study brief

The study tested drug test detox shampoo on hair from 14 drug users.

Hair was washed with the shampoo and analyzed using advanced methods.

Results showed that the levels of drugs decreased after a single wash:

  • cocaine by 5%,
  • morphine by 26%,
  • and THC by 36%.

results of studies

This indicates this shampoo reduces drug traces in hair.

Drug test detox shampoos and ETG

This study looked into whether detox shampoos can hide signs of alcohol use in hair. Experts usually look for specific markers like ethyl glucuronide (EtG) to detect alcohol consumption.

Researchers tested four detox shampoos on hair samples, soaking them for different times. Here’s what they found:

For EtG, three shampoos were as effective as plain water.

However, one shampoo significantly reduced EtG levels by up to 86% in just 2.5 hours.

Further tests with the most effective shampoo showed it could lower EtG significantly.

These studies also highlighted an important advantage: hair treatments like detox shampoos aren’t visually detectable.

While bleach proved more effective at removing substances, it’s also harmful, damaging both scalp and hair.

Therefore, if you aim to pass a drug test without harming your hair, opting for a hair detox shampoo to remove drug metabolites is a safer and more discreet choice.

Choosing the right shampoo for a hair drug test

When selecting a detox shampoo for a drug test, it’s crucial to cut through the marketing hype and find products that truly work.

I’ve done the research and will guide you on what to look for and why it matters.

Suitability of the product

The market is flooded with detox shampoos, but not all are created for removing drug metabolites. Many are designed to eliminate environmental toxins and improve hair’s look and feel.

However, for a drug test, you need a shampoo that can penetrate the hair structure and dissolve the drug residues.

I’ve focused on shampoos proven to remove drug metabolites effectively.

Safety concerns

Safety is paramount. Some methods and shampoos use harsh ingredients like bleach or laundry detergent, causing significant harm to hair and scalp.

Users often report severe irritation, damage, and even the need to cut their hair due to the harshness.

It’s not just about discomfort; visibly damaged hair can raise suspicion during the test. Our selected shampoos prioritize safety, ensuring they cleanse without causing harm.

Bottle size

The quantity of shampoo needed is more significant than you might think.

The frequency of use depends on your prior drug use; the more you’ve used, the more you’ll need to wash.

Typically, it’s advised to use the shampoo at least 15 times before the test due to the complexity of removing metabolites from hair shafts.

Unlike urine tests, you can’t easily verify your status at home for hair tests, so it’s better to over-prepare than risk failure.

Generally, 10 ml of shampoo is used per wash, so aim for at least a 150ml bottle. For those with longer hair or dreads, even more may be necessary.

I’ve ensured all products on our list meet this volume criterion.

Brand reputation

Reviews are critical. Look for feedback specifically related to drug testing, as many shampoos might have good reviews for hair appearance but not for detoxing drugs.

I’ve sifted through the reviews and included only those products proven to aid in passing hair drug tests.

Top reliable drug test detox shampoos

In reality, there are only two detox shampoos on the market that are truly reliable for passing hair drug tests.

The sale of such products is often surrounded by moral and legal questions, making it a challenging market to enter.

As a result, some companies mislabel regular detox shampoos as ones that can help pass hair follicle drug tests.

They bank on the fact that dissatisfied customers are unlikely to raise legal complaints about failing a drug test due to a shampoo.

In our selection, we’ve included only those shampoos that have been verifiably proven to remove drug metabolites from the hair and help users pass drug tests.

Aloe Toxin Rid Shampoo: a trusted detox solution

toxin rid aloe shampoo

Aloe Toxin Rid has long been a go-to for removing hair contaminants and is especially effective for drug toxins. It’s our top pick for clearing drug traces from hair.

Even frequent marijuana users find this shampoo reliable. For enhanced cleansing, consider combining it with Zydot Ultra Clean.

Its aloe-based formula is kind to your hair and scalp, removing substances like THC and cocaine without causing damage. Natural conditioners keep your hair nourished and hydrated.

Despite its $230 price, its effectiveness justifies the cost.

Start using it daily 3-10 days before your test, aiming for at least 15 washes.

  • The routine is simple:
  • wash with regular shampoo,
  • apply Aloe Toxin Rid,
  • rinse,
  • and follow with your usual conditioner.


  • Works for: Heavy users, all hair colors and types, including black hair, afro hair, and dreadlocks.
  • How many times to use: 10-15
  • Approximate uses per bottle: 23
  • Effects last for: 36 hours
  • Price: $200 (or $235 when paired with Zydot Ultra Clean)
  • Price per oz: $25
Get Old Style Aloe Toxin Rid Shampoo

Zydot Ultra Clean: for light users

zydot ultra clean contents with instructions

Zydot Ultra Clean Shampoo is a detoxifying hair treatment that contains hair follicle detox shampoo, purifier, and conditioner.

It’s a popular hair detox option for marijuana users for its use in the Jerry G Method, which eliminates THC metabolites from the hair cortex.

Each product in the Zydot Ultra Clean package serves a different purpose:

  • Shampoo: cleanses your hair of product buildup, dirt, and other impurities that may hinder the effective absorption of hair care products and treatments.
  • Purifier: penetrates deep into the hair shaft layers to dissolve, release, and remove drugs, drug metabolites, and other unwanted toxins incorporated into the hair matrix.
  • Conditioner: makes your hair softer, fuller, shiny, tangle-free, and more manageable. The aloe-based conditioner also refortifies the cuticle with a protective coating.

ZYDOT Ultra Clean Shampoo is only effective for light users. If you regularly use marijuana, it is recommended to use it in combination with Old Style Aloe Toxin Rid Shampoo.


  • Works for: Light users across all hair colors and types, including black hair, afro hair, and dreadlocks.
  • How many times to use: once.
  • Approximate uses per bottle: One.
  • Effects last for: 36 hours.
  • Price: $36.
  • Price per oz: $36.


  • Relatively cheap.
  • It’s the only hair detox treatment with shampoo, purifier, and conditioner.
  • All three products contain aloe vera, which conditions and moisturizes the hair and scalp.


  • It’s only effective for up to 24 hours due to the risk of recontamination.
  • Ultra Clean Hair Purifying Treatment might not work for heavy drug users.

How to use Zydot Ultra Clean

If you settle on Zydot Ultra Clean to detox your hair, follow these steps:

  1. Wash your hair with regular shampoo and give it a good rinse.
  2. Apply half the Zydot Ultra Clean Shampoo to soaking wet hair. Work the shampoo into your scalp and hair for at least 10 minutes for a deep cleanse. Wash off the shampoo.
  3. Apply all the contents in the purifier packet and massage into the scalp and the hairs closest to the scalp. Comb through hair with a new or thoroughly cleaned comb and let sit for 10 minutes. Rinse well.
  4. Repeat step 3 with the remaining Ultra Clean Shampoo.
  5. Apply the conditioner and gently massage it into the scalp and hair, ensuring total coverage. Leave in hair for 3 minutes. Give your hair a thorough rinse for about 1-2 minutes to remove any trace of product.

In addition to deep cleaning your hair correctly, observing the guidelines below will help ensure the Ultra Clean Hair Purifying Treatment is as effective as possible:

  • Don’t consume or inhale toxins 24 to 48 hours before using Ultra Clean.
  • Use Zydot Ultra Clean one day before or on the morning of your drug test, as it’s only effective for up to 24 hours. That’s because the sebaceous glands alongside your hair follicles produce sebum that inevitably introduces contaminants into the hair.
  • Two or more applications are required to complete detoxification if you’re a heavy user, your hair is six inches or longer, or you have thicker hair.
  • Thoroughly clean items that may come in contact with your hair to avoid reintroducing toxins to your hair. These may include old combs, pillowcases, headrests, hats, and hoodies. Alternatively, refrain from contact with these items altogether.
Get Zydot Shampoo
Aloe Toxin Rid and Zydot Ultra Clean are the only detox shampoos I trust as effective, safe, and reliable for drug tests. While there are other options out there, these two have consistently proven their worth.

I’ll review other popular shampoos, but remember, their effectiveness isn’t guaranteed. Use them at your own risk.

Stinger Folli-Kleen Intense hair cleanser: A risky bargain?

As someone who has been immersed in the world of haircare analysis for years, I’ve developed a knack for discerning the good, the bad, and the questionable in this industry.

The Stinger Folli-Kleen Intense Hair Cleanser falls somewhat into the latter category.

This product does have one noticeable advantage – its price. At a modest $29.99, it’s one of the more affordable detox shampoos on the market.

However, affordability alone isn’t a measure of effectiveness.

Mixed reviews and natural ingredients

Despite being FDA registered and made in the USA, the reviews for this product are less than stellar. Consumers have reported mixed results, suggesting this shampoo may not be reliable for everyone.

On the plus side, Stinger Folli-Kleen boasts of ingredients that are all naturally found, which is reassuring for those concerned about chemical exposure.

That said, it may only work for light users willing to take the risk of a less-than-perfect track record.


  • Works for: Possibly for one-time users.
  • How many times to use: Once.
  • Approximate uses per bottle: 5.
  • Effects last for: 36 hours.
  • Price: $34 (or $17 on Amazon).
  • Price per oz: $17.

High Voltage Detox Shampoo: The cheapest option

High Voltage Detox Shampoo

Moving down the price ladder, we find the High Voltage Detox Shampoo. At a mere $12, it’s the cheapest detox shampoo available. But as the old adage goes, you often get what you pay for.

Poor reviews and limited effectiveness

Regrettably, the reviews for High Voltage Detox Shampoo are not positive. Its low cost seems to be reflected in its performance, according to many users.

This shampoo might serve you well if you’ve only used weed once. However, for anyone beyond an occasional user, its efficacy is questionable.


  • Works for: Possibly for one-time users.
  • How many times to use: Once.
  • Approximate uses per bottle: 5.
  • Effects last for: 36 hours.
  • Price: $34 (or $17 on Amazon).
  • Price per oz: $17.

Macujo Aloe Rid Old Formula Shampoo

macujo shampoo

This shampoo claims to rival Toxin Rid Old Style Aloe Shampoo, even suggesting it mimics the Nexxus Old Formula. While it may work for moderate users, the reviews vary widely.

Interestingly, it’s recommended to use this shampoo with the Macujo method, involving harsh substances like vinegar and bleach.

This method can significantly damage your hair and scalp, so caution is advised.

Another consideration is the frequency of use.

Official guidelines suggest up to 20 washes before a drug test, but one bottle typically covers only 17 uses.

You’d likely need two bottles, making it pricier than Toxin Rid Old Style Aloe Shampoo in the long run.


  • Works for: Moderate users across all hair types, including dreads.
  • How many times to use: Up to 20.
  • Approximate uses per bottle: 17.
  • Effects last for: 36 hours.
  • Price: $170.
  • Price per oz: $28.

Step-by-step instructions for using detox shampoo for a hair follicle drug test

Here’s a detailed guide on using Toxin Rid Old Style Aloe Shampoo and Zydot Ultra Clean Shampoo to pass a drug test.

  • If you’re an occasional user, you might only need Zydot Ultra Clean on the test day.
  • Start using the shampoo daily, ideally 3-10 days before your test.
  • If short on time, consider multiple showers a day.
  • During each wash, keep the shampoo lathered in your hair for 10 to 15 minutes.
  • Aim for at least 15 washes before your test for optimal results.

Regular use instructions:

  1. Start with Regular Shampoo: Begin your routine with your usual shampoo.
  2. Rinse Thoroughly: Ensure all shampoo is washed out.
  3. Apply Old Style Aloe Toxin Rid: Use a dime-sized portion, ensuring thorough coverage.
  4. Let it Soak: Leave it in your hair for a while to penetrate deeply.
  5. Rinse Out: Wash the shampoo out thoroughly.
  6. Condition Regularly: Finish with your regular conditioner, focusing on the scalp to remove oil layers.

how to use hair detox shampoo

On the day of the test: Zydot Ultra Clean usage

Step 1:

  • Wet hair thoroughly.
  • Use half of the Zydot shampoo, massaging for 10 minutes.
  • Rinse with warm water.

Step 2:

  • Apply all of the purifier, massaging into the scalp.
  • Use a new comb to spread it evenly.
  • Leave for 10 minutes then rinse.

Repeat step 1:

  • Use the remaining shampoo, creating a lather and massaging for another 10 minutes.
  • Rinse thoroughly.

Step 4:

  • Apply all of the conditioner, massaging into scalp and hair.
  • Comb through, leave for 3 minutes, then rinse with warm water.

Now, style your hair as usual and you’re ready for the test!

Tips for passing a hair drug test

To increase your chances of passing a hair drug test, here are some essential tips:

  1. Cease Drug Use: Stop using drugs at least 48 hours before you start using the detox shampoo. This helps prevent new drug metabolites from entering your hair.
  2. Avoid Contamination: Stay away from items that have touched your hair, like pillowcases, hats, and headbands. They might reintroduce toxins.
  3. Time Management: Act quickly. Drugs can deposit in the newly grown hair shaft after about 3 days, so start the detox process as soon as possible.

Homemade solutions

The Jerry G method for hair follicle tests

The Jerry G Method is a rigorous home remedy for passing hair drug tests.

It uses strong chemicals, so proceed with caution and be aware of potential damage to your hair and scalp.

What You’ll Need:

  • Rubber gloves and goggles for safety.
  • Ammonia-based permanent hair dye.
  • Baking soda.
  • Detox shampoo like Toxin Rid Old Style Aloe.
  • Shower cap or plastic bag.


  1. Protect Yourself: Wear gloves and goggles to safeguard against harsh chemicals.
  2. Dye Your Hair: Apply ammonia-containing hair dye as per the kit’s instructions. Ammonia may help break down the hair cuticle, releasing drug metabolites.
  3. Wash with Detox Shampoo: After dyeing, thoroughly wash your hair with a detoxifying shampoo.
  4. Air Dry: Let your hair dry naturally.
  5. Pause for Recovery: Wait at least 10 days before repeating to give your scalp and hair time to recover.
  6. Repeat Dye and Wash: After 10 days, re-dye your hair and wash it again with the detox shampoo.
  7. Baking Soda Treatment: The day before your test, apply a baking soda paste to your hair, then rinse and shampoo.
  8. Final Wash: On test day, give your hair one last wash with the detox shampoo.


  • The Jerry G Method is intense and can cause significant damage, including hair breakage and scalp irritation.
  • Visible damage to your hair and scalp could prompt the drug test collector to opt for body hair instead
  • There’s no scientific proof of its effectiveness in passing a drug test.

Time Required:

  • Single Cycle: About 2-3 hours, not including the 10-day wait.
  • Total Time: Around 4-6 hours of active treatment over 11 days.

The Macujo Method

The Macujo Method is a rigorous approach to cleanse your hair for a drug test.

It uses various household and specialized products.

Here’s a guide on how to proceed, but be aware of the potential risks to your hair and scalp.

What You’ll Need:

  • Macujo Aloe Rid or Toxin Rid Old Style Aloe Shampoo
  • Heinz Vinegar
  • Tide Liquid Laundry Detergent
  • Clean and Clear Deep Cleaning Pink Astringent
  • Zydot Ultra Clean
  • Arm & Hammer Baking Soda

Step-by-step guide:

  1. Soak with Vinegar: Start by soaking your hair in vinegar for 30 minutes to open the hair cuticles.
  2. Apply Astringent: Add Clean and Clear Astringent, cover with a shower cap, and wait another 30 minutes. This aims to neutralize THC.
  3. Rinse: Wash out the acid and vinegar thoroughly.
  4. Tide Application: Apply Tide detergent and let it sit for an hour. This is a crucial but harsh step.
  5. Final Rinse and Condition: Rinse your hair well and apply a conditioner for 10 minutes to restore some moisture.

Important notes:

  • The effectiveness of just Zydot Ultra Clean and Toxin Rid Old Style Aloe Shampoo is significant, making other steps potentially excessive.
  • Tide detergent is notably harsh and may cause noticeable damage to your hair and scalp. If a test collector sees this, they might use hair from another body part.
  • This method is aggressive and might leave your hair feeling damaged.

Proceed with caution and awareness of the potential risks and damage to your hair.

Word of caution

Before diving into DIY methods for passing hair drug tests, consider the severe side effects. Many of these home remedies can significantly damage your hair and scalp. For women, the potential for hair damage can be particularly distressing. Here’s what some individuals have shared about their experiences:

  • “Wouldn’t wish that process on my worst enemy.”
  • “The relaxer really irritates your scalp after the Macujo.”
  • “Bleach makes scalp burn like hell apparently and causes hair/scalp damage.”
  • “Crazy scalp melting treatments.”
  • “So when I damaged my hair, I felt like my life was RUINED.”
  • “After my test, I decided to cut my hair because I wasn’t trying to look like Patchy the Pirate, so I got a bald fade.”
  • “I had dandruff and pieces of my scalp were falling out for like a week and a half after.”

I recommend opting for drug test shampoos that are safe and proven to work without such damaging effects.


I highly recommend Toxin Rid Old Style Aloe Shampoo in combination with Zydot Ultra Clean as the most effective and reliable solution to pass a hair drug test.

For light users, Zydot Ultra Clean alone can be a reliable option. It’s crucial to weigh the consequences of failing the drug test.

Consider the repercussions of not passing and avoid shortcuts or ineffective methods. Your hair’s health and your test’s success are worth the careful choice.

Hair drug test procedure

Understanding the hair drug test procedure is crucial for confidence and to avoid mistakes. Here’s what you can typically expect:

  1. Setting: The test might occur in a lab, hospital, or even at your workplace, where the sample is then mailed to a lab.
  2. Identification: A clinical manager will verify your ID.
  3. Explanation: They’ll explain the procedure before starting.
  4. Sample Collection: Hair is usually taken discreetly from the back of your head, close to the scalp, using sanitized shears. They’ll collect about 1.5 inches of hair, reflecting approximately 3 months of drug history due to average hair growth.
  5. Packaging: The hair is placed in foil and then an envelope, which is sent to the lab.
  6. Results: Typically, results are returned to the company within 3-5 business days.

How long can drugs be detected in your hair?

Drugs can be detected in hair indefinitely.

Once metabolites enter the hair, they remain until the hair is cut or removed via special treatments. This permanence makes hair tests particularly challenging.

Even if you stop using drugs, metabolites lingering in your blood can deposit into new hair.

For instance, marijuana metabolites can remain in your blood for weeks, continuing to enter new hair as it grows.

How hair detox shampoos work

Hair detox shampoos are designed to tackle the layers of the hair shaft: the protective cuticle, the cortex, and sometimes the medulla.

These shampoos effectively open the cuticle, the scale-like outer layer, exposing the cortex. This allows the deep-seated toxins within the follicles to be removed.

In addition to cleansing agents, quality detox shampoos include conditioning elements like aloe vera, salicylic acid, and propylene glycol.

These agents help reseal the cuticle, flattening the hair strand surface, making your hair softer and shinier after the detox process.

Why choose detox shampoos instead of Macujo and Jerry G methods

Macujo and Jerry G methods involve harsh substances like bleach and vinegar, which can severely damage hair and scalp.

Such damage is not just painful and irritating but can be particularly distressing, especially for women who value their hair’s health and appearance.

Common complaints from these methods include:

  • Intense scalp irritation and burns.
  • Significant hair damage leading to drastic measures like cutting it all off.
  • Continuous discomfort from itching and dandruff.

Additionally, collectors conducting the hair test are often aware of these extreme methods.

They can easily spot the signs of damaged hair and scalp, raising suspicion.

In such cases, they might opt for samples from other body parts, rendering the efforts to cleanse scalp hair futile.

That’s why I recommend specially formulated detox shampoos.

Not only are they designed to safely and effectively remove drug metabolites, but they also maintain the integrity of your hair and scalp, avoiding unwanted attention during the testing process.

These shampoos are a discreet, safe, and proven method for those needing to pass a drug test.


Do shampoos work for hair follicle drug tests?

Yes, but not all shampoos are effective.

You need those specifically developed to break down drug metabolites within the hair shaft.

Refer to the detailed recommendations in this article for guidance.

How long does detox shampoo last after you wash your hair?

Detox shampoos permanently remove drug metabolites from the hair shaft.

However, as your hair grows, new metabolites from your blood get deposited into the newly grown hair.

Since hair grows about 0.5 inches per month, it’s best to perform a hair detox less than 3 days before your drug test to ensure the newest growth is also treated.

Does Selsun Blue help pass a hair drug test?

Regular detox shampoos, including Selsun Blue, typically don’t remove drug metabolites for drug tests. There’s no reliable evidence suggesting Selsun Blue can help pass a drug test.

It’s crucial to use products that are proven to work and understand the risks of failing a drug test.

Can Zydot be detected in a hair test?

Hair drug tests don’t look for signs of using detox shampoos. Therefore, Zydot Ultra Clean and other drug test detox shampoos are not detectable.

However, home remedies like the Macujo and Jerry G methods can visibly damage hair and scalp, raising suspicion and possibly leading collectors to take samples from other parts of your body.

Will bleaching your hair affect a hair drug test?

Yes, bleaching your hair will cause noticeable damage to both the hair and scalp.

If a drug test collector sees this damage, it may raise suspicion, and they might opt to take hair from other parts of your body for testing.

Can I do anything at home, like bleaching my hair, to pass a hair follicle test?

Yes, there are home methods like the Macujo and Jerry G methods, which involve using bleach, vinegar, ammonia dye, etc.

These can help destroy drug metabolites in your hair shaft. However, they also significantly damage your hair and scalp.

A drug test collector might notice this extensive damage and opt to take samples from other parts of your body due to suspicion.

What drugs can be detected?

Hair drug tests commonly screen for:

  • Amphetamine/methamphetamine/ecstasy
  • Marijuana metabolites
  • Cocaine and its metabolites
  • Opiates (including codeine, morphine, and 6-acetylmorphine)
  • Oxycodone-related substances (oxymorphone, hydrocodone, hydromorphone)
  • Phencyclidine (PCP)

Can a lab determine when the drugs were taken?

Standard hair drug tests, using about 3 inches of hair, can detect drug use within the past three months, given hair grows about 1 inch per month.

However, they don’t pinpoint the exact timing within that period as the entire hair sample is dissolved for testing.

More detailed segmentation of the hair can provide a more specific timeline, but such procedures are costly and not typically part of standard testing.