How To Pass A Hair Follicle Test

As if pre-employment pee drug screenings weren’t a bummer already, some employers take it up a notch and subject you to other tests like the dreaded hair follicle test. It has a near-sinister reputation among marijuana users and one that far precedes its name to be honest. The mere mention of a hair follicle test is enough to instill a paranoia that says that ‘You are going to fail’.

How to pass a hair follicle testBeing a long time casual Marijuana user and an administrator at one of the biggest weed forums online, I have met my share of people who have taken all kinds of tests. Some have passed every single one, others have failed repeatedly. However, everyone is either staring at the wall or twiddling their thumbs asking how to pass a hair follicle test. I myself, have passed the hair follicle test on three occasions after the lab got suspicious due to my incredibly clean urine profile and decided to double check.

The fact is that it can be beaten just like a urinalysis can be. The caveat is that you need to know exactly how to do it because the margin of error here is slim, unlike a urine test that gives you more ways than one to try.

First, let me try to explain some hair drug test facts and dispel a few common myths that surround it.

How does a hair follicle test work?

The hair follicle test was originally intended to screen people for heavy usage of illicit drugs like Meth and Cocaine. It uses a small sample of your hair from either your head or your body (underarms, legs or chest) and tests it for drug molecules and specific metabolites. When it comes to marijuana, labs don’t test for THC (∆9-tetrahydrocannabinol) per se.

Instead, they test your hair for minute concentrations (50 ng/mL) of THC-COOH (11-nor-9-carboxy-THC), which is a metabolite of THC.

That’s the scientific part. Here’s what’s more important about how to pass a hair follicle test.

Every lab will cut off 1.5 inches of hair from the root and discard the non-root end. This is the standard hair drug test procedure around the world. The only guys who can go probing to the end of the hair are coppers. No lab does that. In fact, I’d recommend that you request the lab technician to cut off the length beyond the first 1.5 inches.

I am sure you’d like to know what those 1.5 inches will reveal. Can it detect if you smoked Marijuana during your prom night 18 years ago? Can it show if you smoked a bong at your best friend’s bachelorette party last week? How much data is stored in a single strand of hair that can connect you to your Marijuana usage?

Relax. This is a standard lab test we are talking about. Not CSI or Nat Geo’s Forensic Experts.

1.5 inches of hair can reveal your pot smoking history for the past 90 days at best. That is an educated estimate that is followed by pot smokers around the world. Your lab may claim that a hair drug test can detect pot usage for the past 12 months or 3 years. That’s just baseless propaganda without scientific claims to back it up with.

Can you shave to beat the hair drug test?

If you walk into the lab for the test without a strand of hair on your body, you might as well walk into the lab with your Kush in hand. Shaving is out of the question. You will be disqualified right away and lose your job in the process. You need to have hair on your head or your body and still find out how to pass a hair follicle test.

The only way to pass a hair follicle drug test is to detox your hair and eliminate the metabolites completely before you step into a lab. And it can be successfully done with hair follicle detox shampoo. Now, there is a lot of contradictory information floating out there about how to pass a hair follicle test with a drug detox shampoo. There will be people who tell you it won’t work. Guess what?

Hair follicle detox shampoo has worked 3 times for me. Passed the test without any problems whatsoever even when I had smoked my last joint just 7 days before the test. Most people are just passing on what they hear from sources, friends or what they read on the internet. I am speaking from my personal experiences with these drug detox shampoos.

The two hair detox shampoos that I have used are Aloe Toxin Rid detox and Zydot ultra clean.

Old style Aloe Toxin Rid detox shampooOld Style Aloe  Rid detox shampoo:  Old style Aloe Toxin Rid is one of the most effective but gentle hair detox shampoos that will flush out every trace of THC or other drugs from your system completely within as less as a week.

And if you are short of time, you can just increase the number of times that you wash your hair a day to three or four. This will clear your hair follicles in a matter of days. Its advised to use Zydot Ultra Clean shampoo with Aloe Toxin Rid combination for the best results.

Just to let you know that there is a science behind the claims, Aloe Toxin Rid contains Propylene Glycol which breaks down the cuticle, the first hard layer that protects every single hair follicle and penetrates into the cortex (the second layer) where THC metabolites are stored. For more info check out my
Nexxus Aloe Rid Gentle Clarifying Shampoo review.

Then, the ultra-clean shampoo works in combination to flush out the THC metabolites from this layer.

That makes it sound like the shampoo is harsh on your hair. Not one bit. Have used it repeatedly and even recommended it to friends. We still have hair on our head. So, guess it’s just good old shampoo.

One thing that I must mention is that only the old batch of Aloe Rid shampoo that has a barcode number of 05592 16035 is effective. The newer lot does not contain Propylene Glycol and you will most likely be busted.

This is where I buy the older batch from. These are the only guys who stock it now: The shampoo comes in testclear’s own packing (picture above).

Other than these shampoos, I have also used The Macujo method, which has a 90% success rate in helping remove toxins from your hair. Before I tell you in detail about how to pass a hair drug test, I’d like to talk about DIY home remedies for a hair drug test that are gaining popularity among weed users.

Are there any home remedies for a hair drug test?

A lot of weed users try to pinch pennies and ask for how to pass a hair follicle test home remedies that can help them remove the traces of THC from their hair. Guess what?

There is no homemade method that can help you remove THC from your hair shaft. None that I know of in my last thirty years of smoking experience. This is one of the hair drug test facts that very few people seem to realize.

You can drink all the water in a well and jog for days. At best, it will reduce your weight. The THC will still be there though, stuck like a leech to your hair shaft.

A method that I keep hearing about these days on the forum about how to pass a hair drug test involves bleaching your hair and then dyeing it and then repeating the process repeatedly for 5 to 6 times. You can even add Vinegar to the mix apparently.

What an atrocious load of bull! This method will do one thing for sure. It will screw your hair completely. We are not talking about temporary dry or frizzy hair either. A friend of mine, who didn’t even consider speaking to me once before trying this on her hair, learned it the hard way.

She had to completely shave off her head because the hair was beyond repair. All those chemicals in the bleach and the dye had destroyed her hair follicles.

So, if you are looking for how to pass a hair follicle test home remedies for clearing a hair strand test, do it at your own risk. At best you will lose your job. At worst, you will get busted and you will still screw your hair completely.

How to pass a hair follicle test : The Macujo Method

drug detox shampooThe Macujo cleaning technique to pass a hair strand test was first posted online sometimes in the early 2000s. But it remained largely unknown until a young man by the name of Growman experimented the shit out of it and got great success with it. That’s when the method really took off. It’s pretty popular in the community and it would be fair to say that it has worked for more than 90% of the people who have tried it. The other 10% probably didn’t read the instructions well. In simple terms, it is one of the most effective ways of passing hair follicle drug test.

How to pass a hair test with the Macujo method

  • At least 5 days for the method to completely strip the THC from your hair. The recommended time is 7 days. But five days work too.
  • Aloe Toxin Rid shampoo (The older batch which contains Propylene glycol)
  • Vinegar (You can take any grocery store brand like Heinz)
  • Salicylic acid shampoo like Clean and clear
  • Tide detergent liquid
  • Shower caps
  • Goggles to prevent the shit from burning your eyes out

Just to let you know, this will be hard on your hair because you are using a lot of chemicals along with the shampoo for a drug test. But it won’t damage your hair to the point of no repair. Some moisturizing and omega supplements will restore it to its former glory.

Here’s how you use the Macujo method.

  • You will need a deep sink where you can wash your hair thoroughly with a lot of warm water.
  • Wear the goggles so that you can prevent the vinegar and the shampoo for drug test from burning your eyes
  • Start off by rinsing your hair with the water. Ensure that you wet it till the roots and on the scalp.
  • Now take a pulp full of the Heinz Vinegar and apply it till the roots and on the scalp. This may burn the scalp a little.
  • Now use the salicylic shampoo and massage it into your scalp. This may also amplify the burning sensation
  • Wear a shower cap and let the mixture sink into your hair follicles and your scalp.
  • After half an hour, remove the cap and wash your hair and scalp thoroughly
  • Now use the  Aloe Toxin Rid Shampoo  (old formula) and rinse your hair twice with it.
  • Lastly, the coup de grace, take a few drops of Tide and wash the hair with it until you can feel a squeaky clean feeling.
  • Wash your hair with Zydot Ultra Clean Shampoo on the last day of the treatment, right before the drug test.

Note: You will have to use lots of water to wash off the chemicals from your hair. This process needs to be repeated for 7-8 days at least until the THC (or any other toxin) is removed completely from your hair. If you are short of time, do it three to four times a day for three to four days at least. Do not smoke pot during this period.

Hair Drug Tes FAQ

Can I only buy the Zydot Ultra Clean shampoo to remove the traces of the drug metabolites?

You sure can. It won’t work though. Zydot will only be able to remove the metabolites once Aloe rid strips to the second layer of the hair follicle. It won’t work alone, else nobody would buy Aloe Rid. There’s a reason why it is sold as a package.

How to pass a hair drug test in 24 hours? 

These methods need to be repeated for at least 7-8 times to ensure that you are able to remove toxins completely from your hair. If you only have 24 hours, you are likely to fail the test to be honest. Just don’t want to get your hopes high. But hey, what do you have to lose? Try the Macujo method by repeating it 4-5 times during that time frame. Some people have reportedly cleared their tests by doing this.

How long does a hair drug test go back?

 90 days

What companies do hair follicle tests?

There is no exhaustive list of which companies do hair follicle tests available. The reason for this is that it changes all the time, and in some companies is only for some job roles and not all situations.

But using common sense, there are obvious job types which stand a good chance of using the hair follicle test, for example, a lot of trucking and haulage companies do, some government agencies, and education services as well. There are databases online that claim to tell you which companies do a hair follicle test, but many of these appear to be out of date.

How do hair drug tests work?

There is one standard when it comes to a hair drugs test.  A 1.5” sample is taken, from the follicle upwards, with the end of the hair beyond 1.5” removed.  Watch closely to make sure the technician does this!  This gives approximately 3 months of history for them to test.  If you are bald or have very short hair on your head, then body hair can be used instead.

Is there any natural hair detox recipe?

One natural hair detox recipe that some people say works involves baking soda. Mix one part baking soda with four parts hot water.  Wet your hair.  work the baking soda mixture through your hair. Massage your scalp for a couple of minutes. Rinse it out and condition to seal the detox, using raw honey.  Unfortunately, there is zero evidence that this recipe of any other will work, as no recipe will remove toxins trapped inside the hair.  So you will not pass a hair drugs test using a natural detox recipe.

How long does LSD stay in your hair?

LSD can be detected using a hair test for up to 90 days, depending on the length of hair and the frequency of cutting. Hair tests are usually only done by the courts or police or government because a hair test is expensive. Hair tests are only usually done by a court when they are trying to convict you for manufacturing or trafficking. However, a few jobs such as trucking companies do sometimes use hair testing as well.

Does molly show up in a hair test?

Yes, molly will, unfortunately, show up in a hair drugs test. It can be detected up to 3 months after taking MDMA.   Modern drug testing instruments can detect MDMA in human hair at the picogram level per milligram of hair.

A picogram is a millionth of a millionth of a gram. So the problem is that although people often state that it’s three months, this is about how far back the drugs center tests go, but in general, terms, unless you shave your head or have the hair containing molly grow and be cut off, Molly can be detected in your hair.

How long does pot stay in your hair?

Pot will be detectable in your hair for up to 90 days (around three months).  But that’s not how long it stays in the hair, that’s how far back in history drug testing centers usually go. It could stay in your hair for a lot longer than that depending on use and hair length. But the standard test only uses a 1 1/2 inch sample from the roots of the hair upwards, the ends are cut off, which means that a longer than 90-day history will not show up in a standard drug test.

How long does crystal methamphetamine stay in your hair?

Meth will be detectable in your hair for about three months, or 90 days. That’s not how long it actually stays in the hair, it can stay detectable for longer depending on your usage and hair length, but 90 days is how far back in your history that drug testing centers usually look.

Psychemedics hair test cutoff levels?

The test cutoff for a Psychemedics hair test is Enzyme Immunoassay (EIA) at 10 pg/10 mg hair.  Some websites and forums inaccurately state this as using radioimmunoassay (RIA) at 20 pg/10 mg of hair, but this is no longer accurate.  Psychemedics changed the test cut-off and method in 2012.

How much does a hair follicle drug test cost?

A regular hair testing kit starts from 60$ and goes up to 90$.

How to pass a hair follicle drug test for opiates?

It’s the same for every drug. The macujo method will do the job.

How to pass a hair follicle drug test naturally?

Drugs stay in your hair for up to 90 days. There is no way to pass a hair drug test naturally unless you wait three months.


On a closing note, I would like to say that many times, laboratories and companies change their mind at the last moment and ask you to go ahead with a urinalysis as well. Maybe they just suspect that you detoxed your hair.

Whatever the reason, always carry a bottle of synthetic urine with you if it’s an unsupervised test. The most recommended brand is Sub Solution as I already explained in an earlier blog post. Alternatively, you can drink an entire bottle of Mega Clean cleansing drink an hour before you head to the test.

It gives you a five hour window period during which your urine will be clean and won’t contain any drug metabolites.

You can order both these products from the same website that sells Aloe Rid.

A hair follicle drug test can be a pain in the ass and it can be expensive as hell too. But if you are serious about getting that job, you wouldn’t think twice about it, would you? Good luck with the test. Feel free to shoot an email if you have any doubts.


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