How to Pass a Hair Follicle Drug Test

Are you facing a hair drug test in the near future?

Although it has become more recognized lately that cheating on urine tests is a very real thing, many professionals believe these hair tests can’t be fooled.

They are wrong though. It may take a little more commitment to pass a hair follicle drug test that other drug tests, but it’s definitely doable once you know how to.

The use of hair drug tests has actually increased a lot over the last decade.

And the reasons are obvious:

  • The detection time is way longer than other tests.
  • It isn’t at all invasive.
  • It’s considered hard to cheat, since there are no privacy concerns obtaining it and thus harder to tamper with the sample in any way.
  • It’s very accurate.

Not a hair follicle drug test? Find out how to beat: urinalysises, oral drug tests (swabbing) or blood tests.

Basic Understanding Of The Hair Follicle Test

how to pass a hair follicle drug test

Studies have shown people with dark hair or more likely to test positive for drugs than those with light hair color, so in a way the hair drug test is discriminating.

In your typical hair follicle drug test a thin strand of hair is taken close to the scalp using scissors and placed in a sealed container. 1.5 inches of this is used. This detects drug use about 3 months back, one month per every half-inch of hair.

It is however definitely possible to go back further, even up to a year and detect drug use, but this is not how the standard tests work and pretty much reserved only for certain legal situations. If you’re really worried I suggest you do some reasearch into what test specifically it is you’re taking, what lab and so on.

If there is no head hair available, hair from other places of the body works as well.

The sample is then shipped to the laboratory where it is chemically washed to eliminate any false positives from outer contact with drugs and then analyzed.

Generally you will have your results within the next three days or so.

For you hair to grow it, just like the rest of the body, needs to get its supplies from your blood. When there are toxins (such as THC and metabolites) in your blood these get deposited in your hair follicles along with the building blocks (amino acids/proteins/minerals and what not). The hair follicle is the sac from which a hairs grows out of.

So when your hair grows, these toxin traces are trapped inside and serve as great evidence to examine what toxins were in your body at a certain time. The time can be roughly estimated by knowing how fast hair grows.

It takes about a week for drugs used to be detectable in a hair follicle drug test (the time it takes for hair to grow past the scalp surface).

How to Pass a Hair Drug Test

Yep, time for the interesting part. How do you pass the hair follicle drug test (aside from being clean the last 3+ months) when regular detox won’t affect your hair?

It’s definitely beatable and many forum members will contest to this over the internet. Myself included. It is however a bit expensive if you want the best solution for it. Which also seems to be the only really reliable method at the time. First, let’s look into the available shampoos for cheating this test.

Detox shampoos

The two best detox shampoos to pass the hair follicle drug test, based on the account of many who actually have passed it, are:

  • Aloe Rid (old formula) – the core product when it comes to reliably beating a hair drug test. It’s worth repeating; old formula or it doesn’t work. TestClear still sells the old one, although they’re often short in supply and it isn’t very cheap. Yet I would never attempt to beat the hair drug test without it. Yep, it’s THAT important. It is sold combined with Ultra Clean since they synergize very well. It’s also part of the Macujo method (see below) which is considered the best method to beat this test currently.
  • Ultra Clean – A popularly mentioned shampoo around the web. It is somewhat effective in that it definitely increases your chances. To be used on the same day of your test. It is in no way reliable on its own though, and shines in synergy with the core of Aloe Rid. This shampoo alone is not as expensive, but as with so many other things it holds true that if you want more powerful stuff it’ll cost you more.

There are a few more (not many though) I could mention but the above mentioned are the ones I use and would suggest anyone else serious about passing the hair test use too.

It’s worth noting that while some detox shampoos work very well for many, a lot of shampoos labeled as “detox shampoos” are actually not that much different from your regular shampoo. It just sells better, marketing them as such.

But shampoos are not the only thing you can (or should) use to cheat the hair follicle test..

The Macujo Method

The Macujo method is the most effective method you’ll find to beat the hair drug test at the moment. Literally hundreds of weed users have used it to pass their hair follicle test and shared their success.  Hence with time it’s gained popularity over the internet. Judging from user feedback online it’s rocking a well over 90% success rate in beating the hair test and is now probably the most discussed method for passing the test on online and social platforms.

I’ve beaten 3 hair tests myself using the method, and this after regular (almost daily) marijuana use.

Most people don’t give back to the forums however, so the ones that have actually passed using the Macujo method are probably more in the thousands or tens of thousands. The ones that failed may have just been unlucky, since nothing works for everyone when it comes to drug testing, but it could also be that they didn’t do it right.

The Macujo method has actually been around since the early 2000’s, it just wasn’t as well-known back then.

What you need:

Macujo method checklist

        • Nexus Aloe Rid Shampoo. As mentioned above it needs to be the old formula that uses propylene glycol. Costly, but nothing else really comes close to it. You can get the old formula here.
        • A shampoo using salicylic acid. I use Neutrogena T/Sal (3% salicylic acid)
        • Liquid tide detergent. I use this one but any brand at your local grocery store works just as well.
        • Heinz vinegar. Any white vinegar is fine.
        • Shower caps. At the very least a pack of 10. I get these since they’re cheap and effective. 100 may be overkill, but then again, maybe not. You’ll need a lot.
        • Goggles. To protect your eyes from burning. Any swimming goggles will do.


During the 3 last days before your test, preferably longer (9 or 10 days ideal), follow these instruction at least 8-10 times. If you start 10 days in advance, you can do it once daily, if you have just 5 days, then twice daily is appropriate.

First you need access to a sink where you can wash and rinse your hair with warm water.

  1. Put on your goggles. This is gonna get messy!
  2. Wet you hair under the warm water.
  3. Massage vinegar into your hair and scalp. Don’t skimp. Avoid getting this in your eyes.
  4. Take some Neutrogena T/Sal and massage it into your hair and scalp as well. This may burn. Then wipe clean exposed skin that are not part of the scalp such as ears and forehead.
  5. Put on a shower cap and let it sit for 30-40 min and use a wet towel to wipe away what escapes the shower cap.
  6. Remove the shower cap and rinse your hair.
  7. Wash and rinse your hair twice using Nexus Aloe Rid Shampoo.
  8. Rinse THOROUGHLY. Use a small amount of tide detergent to help with the final wash, and plenty of warm water.
  9. (Optional) After an hour or so, if your hair feels uncomfortably dry, use a conditioner to return some of its moist.

The theory is that this process works through opening up your hair to allow Aloe Rid to take full effect.

Personally I follow this method to the dot. Use the Ultra Clean on the day of your test.

Hair Follicle Home Testing Kits

This deserves to be mentioned since it can be very helpful with tracking your detox progress to see if you attempts at cleansing your hair follicles has paid off.

Hair home tests differ from urine and saliva in that samples need to be sent to a lab to be analyzed. This should be included in a good hair test kit, and is the reasons these test cost a little more.

Hair ConfirmHair Confirm is a good testing brand and the one TestClear sells. It works like this:

  1. Once you get your test kit, you place your hair sample in the envelope included with the kit.
  2. You then send the envelope to the testing lab (the address is on it and shipping is pre-paid). It arrives in one business day.
  3. In a few business days you get your test results (everything is anonymous so you don’t risk anything testing yourself like this).

For a really high-stakes drug test a home test like this might be worth considering.

Personally I usually don’t use a home test for my hair tests, although I do home test myself before urine tests.


hairless unnatural

Being completely hairless isn’t the most natural thing and will definitely raise suspicions.

There is another option that is regarded as reasonably effective among the community froums. It’s sometimes referred to as the Jerry G method and uses peroxide bleach, baking soda and hair dying among a few other things.

The downside to it is that it quite literally destroys your hair through repeated bleaching and that you may want to shave it off after the test. This is probably the main reason most people prefer the Macujo method over this.

I myself have never tried this one since I love my hair way too much for that.

Which brings me to a third option, let’s call it the shaving method.

Basically it means shaving all of your hair off. Not just on your head, but the rest of your body as well since that hair can be used as substitute.

In theory this works to avoid the hair test although you’ll likely have to do a urine test instead. Worst case scenario they’ll refuse to hire you out of suspicions. I mean, let’s be frank here, who does that? Shaving every hair off their body, that is.

If you had hair during your first interview and not at the time of your drug test, I shouldn’t have to tell you why that is even more suspicious.

If you can prove you’re a professional swimmer then sure, go ahead.

What’s your thoughts on how to pass a hair follicle drug test?

50 thoughts on “How to Pass a Hair Follicle Drug Test

  1. Is there a reason to only use Ultra Clean the day of the test or is it better to use it multiple times if you have the money and time?

    • Yes, the reason is Ultra Clean can’t detox you very well, it is more of a masking effect. Hence you use it before the test. No real point in using it more than that since it doesn’t get in to the hair follicles. If you have the time and money the best thing to do is to go through the macujo method using Aloe Rid as many times as you can (be reasonable though, not talking hundreds of times, but perhaps more than the recommended 10 times).

  2. I smoked with a group of friends 72 days ago and since then have had 4 buzz cuts. The only times I smoked was 72 days ago and in May and on New Years. That was my usage for the year. How strenuous do you think I have to go to pass this test. I’m under the impression my very light usage and haircuts I may have cut it out already.

    • With last time of smoking being 72 days ago already, you’re close to being in the clear by amount of time solely. Add on to that the fact that hair follicle tests rarely can detect just one single-time use. And then as you mention your hair cuts, with hair growing about half an inch a month (varies a little bit between individuals), if your hair is shorter than an inch at the moment, it’s likely clean.

  3. I last smoked a few times 40 days ago but I hadn’t smoked for a year before that, I just found out I need to do this test for a new job sometime in the next few weeks how worried should I be since I am not a habitual smoker?

    • Usually, if you smoked more than once or max twice, within 3 months, it’s advised to take precautions. If you smoked just once it’s unlikely to be detected by a hair test. So in your case, if you’re lucky you could still pass but it would be somewhat of a gamble since these are highly accurate tests. In other words, you should definitely be at least a little bit worried. If it’s a very important test to you, then definitely detox.

  4. I’ve smoked about 2 to 3 times a day for the last year found out about this job a really good job and everything looks like they want to hire me haven’t had my first interview yet but quit smoking a month ago and saved my head about 6 days after that my first interview will be right at my 2 month clean mark not sure if they will test me that day or if it will be on the second interview witch would most likely be around 21/2 mark I bought the old nexxus shampoo and used it for two weeks and have some left plan on being able to do for about another week before first interview and using the ulta clean that day if they don’t test in first interview and have to go back Will it still work and should I be worried about failing should I try doing other methods too please help very good job need really bad?

    • You say you shaved your hair 6 days after you stopped smoking and have been abstaining ever since. This would likely mean the hair on your head is clean. You should still consider though that they may test your body hair (arm pits, even pubics, etc) if your head hair is too short and if that body hair is long enough it may still contain THC from your daily use 2-3 months back. Perhaps use some shampoo for that hair as well, and cut it shorter. You don’t want to be all hairless though since that’s suspicious to say the least.

  5. Sophie, I have been detoxing for about 2 weeks straight using the Macujo method w/ Aloe Rid from TestClear. I’m 150lbs, and smoked about once a night, every night, but always a small amount. I have been clean for over a month. Does AloeRid work for only for THC in the hair? Or does it help reduce the residual footprint of all drugs, such as opiates? Do you think having been clean for over a month, and sticking to the Macujo process for 2 weeks straight before my test I’ll be in good shape for passing? I also have Zydot that I plan on using right before my test. Thank you for this site, and thank you for any insight!

    • Hey, keep it up with the Macujo Method! The more the better pretty much. Clean for a month doesn’t help too much in this case, since it detects use for 3 months back, although it’s still necessary so that new hair doesn’t grow out with toxins in it after you’ve been doing the macujo method on the “old hair”. I’ve heard mainly that it’s been used successfully for THC, but it’s very likely to help for other toxins too, since there’s no reason for it to target just THC the way it works. I think you’ll be good for passing your test from what you’re doing already, but it’s the toughest test to pass so it’s never guaranteed, just very likely.

  6. I was clean for about six years, then I started smoking weed everyday for about 1-2 months. I now haven’t smoked in about 2 months. I’ve also had 2 haircuts since quitting. Do you think I’ll pass? What should I try?

    • Well, in this case, if you didn’t smoke for 2 months, it might be smart to cut your hair to max 1 inch, since hair grows on average half an inch per month, and thus there wouldn’t be thc in that hair. If that’s not an option, Macujo Method remains the most reliable way imo.

  7. I was wondering about 2 weeks ago i used cocaine for 2 days pretty good amount. I haven’t used before. Today is the first day I used the aloe rid shampoo and the test is in the morning. I will also use the other shampoo that came with it before I do the test. What are my chances of not passing the test?

    • It’s generally recommended to use the Aloe Rid much mor than just once, so hard to say. At least you aren’t a regular user, which will work in your favor. As for your chances, no idea.

  8. I smoked once on September 1st and I have a hair drug test in a week this job is VERY important to me. I am a girl and have pretty long hair. Should I be fine or should I try the macujo method?

    • If you only smoked once (september 1st) and thus wasn’t a regular smoker before that, I think you should be fine either way. For one, it’s been more than 3 months, which is the time-span hair tests go back. On top of this, hair tests often don’t detect a single use at all, and it needs to be at least 2 or a few times of use.

  9. Sophie, I consumed 2 ecstasy pills about 2 months ago, I took my own private test about 3 weeks ago and didn’t pass. I am taking my real test this week, but shaved my head about 10 days ago. With my hair growing pretty quick, would the hair growing now be considered clean? should I be okay to pass my test?

    • Since you shaved your head 10 days ago, your new hair should be clean. If they decide it’s too short to test though, they might take hair from some other place of your body, so keep that in mind! It’s not completely natural to shave off all your body hair either, but perhaps you could trim it a bit in some places, so that the only hair kept is that from the last 1,5 months. Tricky but probably doable if you’re worried they will test something else than your head-hair.

  10. Hello, I am currently bald and have a hair test in the next week I was under the impression that it will be a urine test but found out it will be a hair test but have no hair on my head and didn’t know if the Macujo Method can be used on body hair I keep my body hair pretty short and I’m starting to panic and only been clean for 5 days, I have at least 3-5 days to come up with something please help

    • Well, aside from macujo method (which can still be used with short notice and have success by doing it many times a day, although not as ideal as if you have longer time.) bleaching and dying it several times is a fairly good method. It ruins the hair thouh, which is why it’s unpopular for head hair, but for body hair peerhaps that doesn’t matter as much and you’d be fine cutting it off after.

  11. I smoked every day for over a year. 2 joints a day. I quit one week ago and took 7 day cleanse herbal pills with detox and colon cleanse. I took home urine test with morning pee and failed. Seems like hair is still getting dirty at root still today then. And in a week that hair will grow above scalp. So, for hair to be clean wouldn’t I have to be clean passing urine test and then wait another 5 days for that clean hair to grow above scalp? So if it takes one month for urine and blood to be clean then to get 3 month of clean hair I would have to wait 4 months+5days?

    • Yeah pretty much, there’s no exact number of when it’s too little in the blood to make a difference in the hair, since getting completely clean takes a long, long time, because it has a half life, and won’t disappear 100%. But if you’re clean on a urine test, that could mean you have 45ng/ml in your urine, while you’d fail if you had say, 55ng/ml, and 45 or 55 isn’t that big of a difference when it comes to if it will end up in your hair roots or not, so can’t go by that definition either. Personally, I think you need a higher amount than that for it to leave relevant traces in the hair. Right after you smoked, you have way higher levels than just a few hours or a day later, and that’s when it really gets in to your hair. If you’re a heavy user like yourself, perhaps you should add a few days to those 3 months, but not a whole month. These are just opinions and theories however, and I don’t think you will be able to find an actual number for this.

      If you use the Macujo Method though for example, and still think you have too high THC in your blood, you can concentrate the Macujo Method treatment over the last few days before the test, ideally doing it several times each day, and then very little new hair will have reached past the scalp. and you should have good chances of passing.

  12. I was caught off guard with a hair follicle test today. I have about 5 days before the test. Over the last 3 months I’ve smoked about 6 grams here and there. Not everyday. Am I screwed? Any thoughts?

    • Macujo method can still work, you then use it several times a day for those five days. I’ve heard several people having success that way, but as always it’s never guaranteed.

  13. Hi Sophie,

    I smoked about everyday for a year but for the past month it’s been down to a couple times a week.

    As of January 25th I’ll be done completely and my drug test isn’t until May 25th at the earliest. Additionally, I was planning on cutting my hair a month after I quit and once again in late April about a month before the test.

    What do you think my chances are of passing a hair follicle test?

    • Also, what would your advice be to make my chances better apart from the Macujo method?

      • If you are abstinent for 4+ months, you shouldn’t need to use the Macjujo Method at all, since the new-grown hair shouldn’t have THC in it anyway. But other than that, there are methods using bleach and hair dyes that can be effective although they ruin your hair at the same time, meaning you may want to shave it after the test.

    • With your circumstances, I think your chances are great and that you don’t need to worry, as long as you can avoid smoking during these months as is your plan. Although they should only use the top part of your hair, as you say it can’t hurt to make sure it’s cut, 1,5 inches or so seems the perfect length of hair for test-day.

  14. I was clean for 5 months smoked weed heavy for a week about a month ago (dec 21)then quit again(dec 27) I have a hair follicle in late feb early March what’s your advice

    • The way I see it, you could probably get away with just cutting your hair fairly short, a little shorter than 1,5 inch in time for your test, and that hair shoud be clean granted you didn’t smoke again after december. You don’t have the magic number of 3+ months which is the ideal but it’s pretty close. I’d say usually they will be fine with slighly shorter hair than 1.5 inch which is what they want for the test. And the other option would be to go with the Macujo Method.

  15. I’ve been clean since January the 8th. I will most likely have to take a hair follicle test in March. I was a heavy user before that, everyday 2-4 times daily. I usually wear my hair pretty short and have cut it twice in that time period. Should I be ok by March, or do you think I need to use the Majuco method. And also have you ever heard of spice/k2 showing up on these tests

    • I think the dilemma here is that to be reasonably safe after 2 months (january to march) you’d have to cut your hair shorter than an inch, and whether they’ll accept that length for the test I don’t know, and may even wary. Usually they want 1,5 inch length in order for it to check the last 3 months and it’s possible they’ll take hair from some other part of the body instead. Not sure. The other option would be Macujo Method as you mention, which may be the better one in this scenario, but it’s up to you. As for spice/k2 no idea, it would depend on whether they test specifically for that or not.

  16. I’ve recently been smoking for the last month. I quit and was clean for a year prior to this. I just got a phone call for a job making great money and have to pass a hair follicle sometime in the next two weeks. I’m very skiing with extremely high metabolism so toxins leave he body fast. With only a couple of weeks left do you recommend the macujo method?

    • Yeah I’d recommend the Macujo Method here. A fast metabolism is not very relevant for a hair test since once it’s in the hair follicle, it will stay there. For urine tests though a fast metabolism can be very helpful.

  17. I have been smoking everyday for years and i just found out today i got a job but they want to do a hair drug test. I have to take the test on February 8th, is it even possible to have my hair clean by then? And how if possible?

    • It’s never 100% guaranteed when it comes to hair tests, but it’s definitely possible and even likely, but it’s in the post above already. Macujo Method would be the best bet.

  18. I haven’t smoked since Nov 7 15 and I smoked one blunt wit 3 people 2 weeks ago then again last week now I have a hair test coming up idk when could be another month or 2 the weed was I wanna say mid grade wasn’t strong at all had the grassy smell do I’m not smoking anymore tho do you think I could pass the hair test I already shaved after I quit about 3 weeks later but those 2 recent times is all I have done in about 3 months any help

    • It’s not guaranteed that the hair test will pick up having used only 2 times during the last 3 months, but it’s hard to know and it definitely might so it may not be too fun risking it. If you don’t want to risk it, if it’s 2 months until the test it could be viable to shave it off right now as long as you make sure you don’t smoke again. The other option would be the Macujo Method.

  19. Hi Sophie,

    I smoked for the first time around January 9th. I had two hits off of a bong and a THC oil gummy. I have a follicle test coming up in around 2-3 weeks. Do you think what I consumed will make me fail the test? I was considering buying materials for the Mac method as a precaution.

    • Hi Bobbo, although I strongly doubt that one time will be enough to fail the hair drug test, you never know, so if it’s a really important test or money isn’t that much of an issue (if it’s for a job, it will pay itself back pretty quick anyways ofc) it could still be worth using Macujo method to be safe.

  20. Back in Dec, I smoked weed for the first time. I took maybe three hits but did not inhale for very long. A few days later i took just one hit. Then two weeks ago I took two hits but didn’t inhale for very long. I have to take a hair drug test next week, should I be concerned?

    • Very hard to say whether it will detect that or not. Had you smoked heaveier on these ocassions, I’d say you should for sure. But I guess you still should be a little concerned since it’s a little bit of a gamble when you don’t know. I’d probably take some precautions such as Macujo Method, but I already keep the Aloe Rid stocked at home so wouldn’t be as much of a hassle for me. Up to you what you do.

  21. Can you pass the test just using aloe rid and ultra clean?

    • Yes absolutely. The Macujo method is safer though, which is why I prefer doing that. It has Aloe Rid and Ultra Clean in it already obviously as the core, but the rest of the process is synergistic.

  22. So I have a hair foiliice drug test coming up in a few days and I smoked weed earlier this month for like 2 days and it December for like 2 days. It wasn’t anything heavy. Just a about 2 to 3 puffs each day. Should I have any worries? My hair is long and thick.

    • It’s hard to say and would probably vary with individuals whether that would put enough of it in your hair to get detected on a hair test. So although it’s possible you’re perfectly fine, I’d still be a little worried. It’s a gamble, and I never like those when it comes to drug tests. If it’s a very important one, you may want to take the same precautions as had you smoked a lot.

  23. Sophia
    I’m not a big smoker i smoked more around the holidays but since then I might have taken a couple of totes here and there & have a test the beginning of March what should I do?

    • Hi Sara.
      Here and there sounds to me like several times at least and that should be detectable on a hiar test. Best would likely be to do the Macujo method as described in the article, if it’s an important test for you to pass. There aren’t too many options with hair tests.

  24. Hi Sophie,

    I was a regular pot smoker for the past few years. Quit fully in November and have smoked about 8 to 10 times since then. The last being a small amount on January 17th. Not sure if I have a hair or urine screen coming up. If it’s hair my hair is too short on my head for that. Any suggestions for the best results for body hair? Also, if it’s urine, what would be the best route being the time line?


    • For hair, as long as you don’t intend smoking again, it’s possible you could trim your body hair a bit to only leave what’s grown out after you stopped smoking. As long as it looks natural. Otherwise, macujo method can be used on body hair as well although a bit more of a hassle, since you need to do it in many places. If it’s a urine there’s the standard choice of heavy detox or if unsupervised, synthetic urine. Much more info on the homepage about this, in the comment section as well.

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