THC Detox: Clean Your Hair With These Home Remedies


Two Home Remedies to Clean THC From Your Hair

welcome to colorful colorado

Sooo… marijuana is now a legal drug in my home state of Colorado.

But Coloradans can still get fired for smoking pot, because THC remains on the list of banned substances for the vast majority of companies here. Marijuana also remains on the list of drugs detectable by the hair drug test.

And THC stays in your hair a looong time.

So if you have a hair drug test coming up – even if you live in Washington or Colorado – you still need a way to get traces of THC out of our hair.

The good news is that there are two proven THC detox procedures that can help you pass your next hair drug test.

How THC Gets Into Your Hair

I will be quick here, but it’s important to understand what’s going on when you smoke marijuana & what labs are actually testing for to understand why certain cleaning regimens work and others don’t.

First thing you need to know:  the hair drug test doesn’t test for the presence of THC (∆9-tetrahydrocannabinol).

Instead, test labs are looking for minute concentrations (50 ng/mL) of THC-COOH (11-nor-9-carboxy-THC) in your hair sample.

THC-COOH is a metabolite (byproduct) that’s created when THC is broken down in your body.

THC-COOH gets into your hair in two ways:

  1. most of it is deposited onto the hair shaft by your sweat glands.
  2. some of it gets through your bloodstream into the hair follicle.

A lot of people think it’s just one or the other. You see a lot of religious debate online about this.

This research graphic below shows the many ways THC and THC-COOH get into and onto your hair (courtesy of

Keep in mind that the hair test only detects the TCH-COOH metabolite, not THC nor the other cannabinoid shown in the graphic.

how cannabinoids get into yur hair

how cannabinoids get into your hair (Click to see image)

In this diagram, note that THC can be deposited onto your hair through contamination and second-hand smoking, but THC-COOH can only be transmitted to your hair after first passing through your blood.

If TCH-COOH got into your bloodstream, then it proves that you ingested or inhaled a THC product.

This is why labs test for the byproduct, and not THC itself.

Cleaning your hair with strong chemicals and shampoos removes the portion of TCH-COOH that is deposited by your sweat glands onto the surface of your hair.

Your Best Plan of Action

OK enough of the science.

Since this is a mobile site, I’ll get right to the point.

Here is the most proven plan for stripping THC (THC-COOH) out of your hair:

The Best THC Detox Plan for a Hair Drug Test

If you want to remove traces of THC from your hair prior to a hair drug test, then your best plan of action is to do the following:

  1. Use either the Macujo or Jerry G method to clean your hair.
  2. Clean your hair several times during the week leading up to your test.
  3. The night before and the morning of your drug test, wash your hair using one of the recommended shampoos in the table below.
  4. Drink plenty of fluids during the 24 hours leading up to your test, in case the lab decides to test your urine, too.
  5. Add a supplement or herbal, if you want.
  6. Don’t waste your money on THC detox drinks – unless you’re worried about the urine test, too.

Keep reading to learn more about the Macujo and Jerry G methods, including step-by-step instructions and supply lists.

(touch the “↑ BACK TO TOP” button to return to this list)


Don’t Have Time To Read Everything?

Enter your email below, and we’ll send you everything on this site packed into a neatly organized 24-page eBook (.pdf) that you can read later on, or sharing with others.

Two THC Detox Procedures You Can Do At Home

Hundreds of people swear that two home remedies – the Jerry G method and the Macujo/Growman method – will strip THC metabolites from your hair and help you pass the hair drug test.

Both are pretty simple. But they rely on harsh chemicals, so they’re hard on your hair.

But, you ask: do they work?

As you might expect, drug test labs say they do not.

On the other hand, there are hundreds of people who claim they absolutely doLike this guy,  this young man,  this happy person  and  this fine lady.

I’ll leave it to you to decide who you trust.

The Macujo Method

vinegar clean and clear and Tide

The Macujo cleaning procedure was first described on in the early 2000s.

In 2007, a user named Growman talked about his success and the Macujo method accelerated in popularity.

Macujo/Growman is the most frequently discussed THC home remedy on forums and social networks like Reddit.

The Macujo process deep-cleans your hair using Nexus Aloe Rid shampoo  (the old formula that uses propylene glycol); acetic acid (vinegar); salicylic acid shampoo; and laundry detergent.

The Macujo/Growman method clearly works for many people, but it’s hard on your hair and may chemically irritate your scalp.


aloe rid detoxifier

 WARNING:  Don’t buy the old formula anywhere else. People have paid for the old formula, but received the new formula instead (WHICH DOES NOT WORK).  Check the 1-star reviews on Amazon to see what I mean.  
  • Salicylic acid shampoo like Clean and Clear pink (2% Salicylic Acid) or Neutrogena T/Sal (3%).
  • Tide detergent: liquid form, available at any grocery store
  • Heinz vinegar: available at any grocery store
  • Shower caps: buy at least a dozen
  • Goggles: to keep your eyes from burning

Follow the cleaning procedure detailed below at least 5 times over the 3 days prior to your hair drug test.

Choose a deep sink where you can rinse your hair thoroughly with LOTS of warm water.

  1. Wet your hair thoroughly with warm water.
  2. Pour Heinz vinegar on your head and massage it into your hair all the way down to the scalp. Keep the vinegar away from your eyes – it will burn like hell.
  3. Put the goggles on. Pour a dollop of Clean and Clear Pink or Neutrogena into your hand and massage it into your hair. This will probably burn your scalp a bit. Wipe and clean all exposed skin – especially your ears, eyebrows and forehead.
  4. Put a shower cap on your head and let it sit for 30 minutes. Keep a wet towel handy to wipe away any Clean and Clear that drips out of the shower cap. You’ll look really dumb at this point, so take a selfie for posterity.
  5. Remove the shower cap & rinse your hair thoroughly.
  6. Wash & rinse your hair twice with Nexus Aloe Rid shampoo.
  7. Place a very small amount of Tide into your hair to finish wash everything out. Use lots of warm water to rinse. Keep rinsing until your hair squeaks like you’ve never experienced before.

Note: this procedure is hard on your hair and will remove all essential oils. You may want to follow with a conditioner, but wait at least an hour before doing that.


The Jerry G Method

In 2008, a user named “Jerry_G” started a thread on discussing a new bleach-and-clean method he claimed was “90% effective” against the hair follicle drug test.

According to Jerry G, the method works because bleaching opens up the hair cuticles, making the metabolites easier to clean – as depicted in the graphic below:

how bleaching hair impacts the hair cuticle

Since his original post, many people have backed Jerry’s claim that this is one of – if not the – most effective way to strip THC metabolites out of your hair.

The main downside of this method is that repetitive bleaching destroys your hair. This is probably why the Macujo method is preferred.


toxin wash    zydot_ultra_clean_shampoo


The process is simple: bleach and re-dye your hair, twice.

Note: your hair will get damaged. A lot of people cut their hair after this procedure.

  1. Perform the first bleach-and-dye on the day you quit using. Ask your hairdresser (or a fake blonde friend) how to bleach your hair properly using peroxide. For the re-dye, just follow instructions on the package.
  2. The second bleach-and-dye should be done at least 10 days after your last use of marijuana. If you have little or no time, then the second bleach and redye should be done as close to the test as possible.
  3. On the day of the test, make a thick baking soda paste w/ water and massage it into your hair. Then, do a full Toxin Wash treatment followed by a full Zydot treatment. Some people do step this several times.


Which THC Detox Products Really Work?

passed a hair drug test with this

One Guy’s Solution: Do Both!

Many people who use the Macujo and Jerry G methods also use products like shampoos, detox drinks and supplements to give themselves a little extra luck.

Listed below are the products that seem to work – and don’t work – for the hair test, based on my research of forums, discussion boards, friends and customer ratings online.

Detox Shampoos

Some detox shampoos really seem to work for a large number of marijuana users.

I say some, because a whole lot of so-called detox shampoos aren’t any different than the shampoos you use every day. They just carry a different label.

The best-known THC detox shampoo is Nexus Aloe Rid  – but only the old formula. It’s expensive as hell, but worth it.

To help you sort through the rest, I studied the successes of real pot smokers documented on popular weed forums including, and

In addition, I went through hundreds of user reviews posted on popular drugstore and retail sites like,,, and more.

In the end, I narrowed the list of shampoos down to a few who meet the following two criteria:

  1. there are multiple independent claims of passing a hair drug test due solely to this product.
  2. the shampoo is rated three stars or better on popular retail and drug testing websites
Best THC Detox Shampoos

Scroll to see more –>


Detox Drinks

best thc detox drinks

Detox drinks are popular with pot smokers. There are dozens of examples online of people who claim a detox drink saved the day.

Almost all of these examples involved urine or saliva tests.

But the question I am trying to answer on this site is: do detox drinks work for the hair drug test?

After hours of researching online, I found no direct evidence that detox drinks helped anyone pass a hair drug test.

There are plenty of examples of people using the Macujo or Jerry G method and then finishing them off w/ a detox drink.

But I couldn’t find a single example where a detox drink was the only thing used to beat the test.

This actually makes sense, because the main benefit of consuming a detox drink is that your body fluids are diluted with water and the THC is masked in your body fluids.

But hair isn’t a body fluid.

Enough said: do not rely on detox drinks to save your job.


Food Supplements and Pills

ultra THC herbal cleanse

A third type of THC detox product used by many marijuana users is consumables. This includes food supplements, herbs and pills.

My research revealed a lot of conflicting information.

On one hand, all of the product manufacturers claim their products work and some provide clinical evidence to prove it. Many offer money-back guarantees, too.

On the other hand, I found almost no claims from people consumed one of these products (only) and successfully passed a hair drug test due to that product.

I’m not saying consumables don’t work. I’m just saying that I can’t find independent examples of people saying the use of just that product caused them to beat the hair drug test.  If you know of any direct evidence that a particular product worked on a hair drug test, then please leave a comment below so we can share it!

As with detox drinks, you’ll find plenty of people who add supplements to their Macujo and Jerry G cleaning regimen.

My take on consumables right now: most of these products are safe and organic, so you don’t have much to lose by adding them to your regimen. If you think a supplement will help, then go ahead and take it.

But I wouldn’t rely on consumables alone to save your neck, m-k?



Best of luck on your next hair test!

– J.Z.




  1. Scared
    January 27, 2015 @ 2:42 pm

    If I don’t have the time or money to get the Nexxus shampoo will this still work for me?


    • Jay Z.
      January 28, 2015 @ 1:19 pm

      I can’t vouch for that, sorry. As far as I know, the Macujo method requires Nexxus Aloe Rid (old version). Perhaps someone else has a difft experience…?


      • JJames
        May 31, 2016 @ 6:36 am

        I really want this trucking job but they’re telling me I have to be clean for a year. Do you think they’re bluffing and are only gonna look back 90 days or an entire year? I can wait a year I’d just rather not.


        • Jay Z.
          June 1, 2016 @ 4:33 pm

          A 90-day look back is the standard, but yes, there are tests that go back a year.

          The results of a 12-month hair tests can be easily challenged, though, because all sorts of things can contaminate hair over that long a timeframe. Bleaching, hair coloring, stress on hair can all impact the results.


    • Jennifer
      April 7, 2016 @ 8:34 pm

      Can hemp products cause a false positive? I use a face cream daily with avacodo oil and hemp seed oil. I bought it at a farmers market. How likely is it that that could make a hair test positive?


      • Jay Z.
        April 9, 2016 @ 8:30 pm

        Contrary to what some say, hemp products don’t cause false positives. They don’t contain enough THC to do that.


  2. Tami
    April 8, 2015 @ 7:39 pm

    Thank you for the info on the test. What does the lab do if a person is bald


    • Jay Z.
      April 8, 2015 @ 11:25 pm

      They’ll take a sample from another part of your body.

      First, they try taking a sample from under your arms or from your chest (if a man). If they can’t do that, then they’ll sample your pubic hair. If nothing down there, then they may ask for urine or blood. They may decide to fail you if they think you only recently shaved to avoid testing positive.

      If they fail you, don’t just take it. Raise hell and ask for a retest using your urine, blood or defer until later.

      Good luck!


  3. tin
    April 21, 2015 @ 11:31 pm

    Do the nexxus shampoo work on its own and does it leave your hair clean from thc for good or just for a few days ?


    • Jay Z.
      April 21, 2015 @ 11:57 pm


      The Nexxus Aloe Rid (old formula) shampoo is just one ingredient of several used in the Macujo/Growman method. Click this link to read about Macujo/Growman.

      If you keep using drugs, then no shampoo can strip your hair “for good”. This is because your body will keep growing new tainted hair beyond the scalp line that contain traces of more recent drug use. If you plan to keep using, then you’ll need to do another Macujo/Growman or another cleaning procedure before every test.

      Best strategy for passing is to stop using 100 days before the hair test, then cut your hair down to 1.5″, all around the head, a few days before the test.

      Of course, not everyone has the luxury of 100 days advance notice. This is why I put this site up…

      Best of luck on your test,



  4. Joe
    May 19, 2015 @ 5:17 pm

    Also is it worth it for me to take the risk of using up until the test? Or should i just stop now since i have 90 days.


    • Jay Z.
      May 19, 2015 @ 5:34 pm

      If you have 90 days to spare (how unusually nice of them!), then I strongly recommend that you just stop using, like today.

      90-100 days of abstinence is the most predictable/controllable way to pass a hair drug test. The remedies discussed on this site are for people who don’t have that much time (since last use).

      Good luck!



  5. Freaked out
    May 19, 2015 @ 11:42 pm

    First of all thank you so much for putting this site up.

    I want to apply for my dream job but they do hair tests. I went to WA for a few months the end of last year and joined all the group’s in celebrating the new law. I haven’t smoked mj for months now. But, I’ve read the test go back a year? I don’t know what to do. In my wildest dreams I can’t afford the nexus shampoo 🙁 I can’t shave my head, I’m a girl who’s always had long hair…
    Any advice?


    • Jay Z.
      May 20, 2015 @ 1:52 pm

      Freaked Out,

      Don’t be.

      If you only used MJ a few times in December, then by now you are clean for the test – assuming they test for the past 90 days (the first 1.5″ of hair from your scalp), which is the norm.

      In other words: CAN they test further back than 90 days? Sure. WILL they? Probably not.

      The vast majority of hair tests only look back 90 days. On rare occasions (government/defense jobs for example), they test further back. Part of the reason for this is that the accuracy of the hair test degrades over time as natural weathering, shampoos and chemicals damage your hair follicle. The labs know this.

      Yes, Nexxus Aloe Rid shampoo (old formula) is expensive. But it’s by far the most recommended THC detox shampoo used as part of the Macujo method, described above.

      Best of luck snagging that dream job!



  6. concerned citizen
    May 31, 2015 @ 8:21 am

    Please advise,

    4. Put a shower cap on your head and let Neutrogena sit for 30 minutes. Keep a wet towel handy to wipe away any Clean and Clear that drips out of the shower cap.

    5. Remove the shower cap.

    (Am I to assume I rinse the neutrogena out before I put in Nexus or do I add Nexus in with the Neutrogena?)

    6. Wash & rinse your hair twice with Nexus Aloe Rid shampoo.

    Thank you


    • Jay Z.
      May 31, 2015 @ 2:17 pm

      Good catch. Yes, rinse the Neutrogena out. I updated the directions above.


      – JZ


  7. bad timing girl
    June 11, 2015 @ 2:25 am

    I haven’t touched a drug in 6 years, that is, except 2 drags of weed about 6 weeks ago. Go figure, I have my dream job waiting for me…if I can pass the hair test… Can that small of an amount be picked up? Is there anything that could cause a false THC positive? Help!!


    • Jay Z.
      June 15, 2015 @ 12:42 pm

      Yes, even small traces can be captured in the hair follicle.

      But… if you only had 2 drags total in the last few months+, then your blood level may not have ever reached the minimum threshold. If that’s true, then you are clean for the test. This is impossible for us to know, though, without knowing the specific concentration of THC you ingested.

      Re. false positives:

      Because the hair test is looking for a metabolite (THC-COOH) that is specific to THC, there aren’t many chemicals/products that can cause a false positive for marijuana. Two things known to cause a false positive include:
      – the common prescription medication, Protonix (pantoprazole sodium), warns of “false positives” for cannabis on its label
      – hemp food products and oils

      Some people also claim ibuprofen causes false positives, but that has not been definitively proven.

      Best of luck on your test!



  8. Wounded warrior
    July 1, 2015 @ 2:53 am

    I’m being blindsided and slammed in a custody battle. They are going to do a hair follicle test. I had 2 hits 3 months ago. What are my chances at passing this test without this regimin? Call me vain, but I really don’t want to ruin my hair if not needed.


    • Jay Z.
      July 2, 2015 @ 10:06 pm

      I’d say your chances are pretty good… if you’re willing to cut your hair to 1.5″ all around before your test, and your test isn’t for another 10 days or so (at least).


  9. Paranoid girl
    July 1, 2015 @ 8:04 pm

    I quit smoking for 3 months then started smoking again maybe 2-3 says a and week for the past 2 months. I have a hair follicle test in the next couple weeks. What are my chances of passing?


    • Jay Z.
      July 2, 2015 @ 9:11 pm

      Unfortunately, not very good.

      You may want to try one of the two cleaning regimens explained on this page.

      Good luck,



  10. [email protected]
    July 2, 2015 @ 5:17 pm

    I just bought the nexxus aloe rid shampoo that comes with Ultra clean shampoo.

    Do I still need to get the salicylic acid shampoo like Clean and Clear pink (2% Salicylic Acid) or Neutrogena T/Sal (3%)?
    Or does the Ultra clean shampoo take its place?


    • Jay Z.
      July 2, 2015 @ 9:07 pm

      Yes, purchase one of the salicylic acid shampoos, too.


  11. Worriedmom
    July 28, 2015 @ 3:15 pm

    Where can I find the nexxus aloe rid?


    • Jay Z.
      August 5, 2015 @ 12:54 pm

      The old formula of Aloe Rid is available at

      It may be available somewhere else online, but I’ve not been able to find another source.

      Good luck!



  12. freck
    August 6, 2015 @ 5:50 am

    If you did cocine 77 days prior to a hair folical test. Will it still show up without any detoxing


    • Jay Z.
      August 7, 2015 @ 2:53 pm



      • Anga
        October 12, 2016 @ 7:08 pm

        No it doesn’t cocaine is out of your system in a matter of days


        • Jay Z.
          October 21, 2016 @ 8:07 pm

          Out of your blood, yes – but NOT out of your hair.

          Once drug traces get into your hair from drug-tainted blood, they will remain trapped in your hair at that level, even after your blood levels drop back down.

          Unless you strip the traces out.

          This ‘permanent record’ nature is exactly why employers use the hair test.


    • worrywart
      October 5, 2015 @ 12:17 pm

      Does aloe rid and zydot, and the macujo method work for hair tests that check farther back than 90 days, like for government jobs?


      • Jay Z.
        October 5, 2015 @ 5:28 pm

        Yes. In general, the older the hair is, the less of a trace remains.


  13. Norml Mom
    September 2, 2015 @ 12:52 pm

    JZ, thanks so much for all this information. I unexpectedly lost my job and am back on the market. Hearing how companies in my area are now opting for hair tests, I got a little nervous. I followed the Macujo steps and paid for my own hair test at a local center. I PASSED! Now I can feel confident going through all my interviews without worrying what will happen next. YOU ROCK! Keep up the public service dude.


    • Jay Z.
      September 22, 2015 @ 8:54 pm

      Awesome news! You made my month 🙂


    • G
      July 21, 2016 @ 11:07 pm

      How much would it cost if i went and paid for a hair test just to make sure i can pass??


      • Jay Z.
        July 25, 2016 @ 9:14 pm

        See the hair drug test table on our home page> for a sample of hair tests you can buy & test yourself with, in your home.


  14. GingerSpice
    September 23, 2015 @ 11:42 am


    I have an upcoming drug test for a big job but im a little sceptical about doing the macujo method on my hair.
    Does it completely destroy my hair if i perform it? What will I look like? Will it be obvious to my potential employer that Ive done something to my hair?

    ps Has anyone else noticed itching of their scalp since they started smoking weed? Is this normal? and will macujo resolve this as well?


    • Jay Z.
      September 26, 2015 @ 11:20 pm

      The Macujo method won’t destroy your hair like the Jerry G method does. It will irritate your scalp. though.

      Hope that answers your question. Good luck!



  15. Tami
    November 14, 2015 @ 4:27 pm

    I haven’t smoked pot in 8 years then the other day smoked a half a joint. I might need a drug test in 2 weeks. will a half a joint show up in urine or a hair follicle test?


    • Jay Z.
      November 19, 2015 @ 3:39 pm

      Probably not. Good luck!


  16. JustWondering
    November 20, 2015 @ 2:43 am

    Hey Jay – Sorry for the repeat posts, but they dont seem to show up for some reason. Dude, thank you SO much for advising everyone and being an awesome person!

    This is my 3rd attempt at a post, and each one is getting shorter and shorter ha.

    I last smoked August 1st. I may be getting a job offer from a govt job. My hair is about an inch or so all around (had it cut earlier today after reading your post). Do you think I am clear? My test may be in about 2 weeks or more.

    If I want to do a home test to confirm I am clean (since its been over 90 days), which one do you recommend? What about finding a testing center in the Atlanta GA area?



    • Jay Z.
      November 28, 2015 @ 2:09 pm

      Re. whether you will be clear by Dec 3:

      Given the info you shared, I think your chances of passing are pretty good if you were a light/moderate (weekly, not daily) smoker before quitting.

      Here’s why I say this:

      – you cut your hair down to 1″ (60 days of growth) on Nov 20, after abstaining for 100 days.
      – this means you had 33 days to clear your bloodstream before the oldest hair on your head today began growing (40 days minus 7 days for hair to grow through scalp)
      – 33 days is plenty enough time for a moderate user to clear their bloodstream of THC-COOH, the THC metabolite the labs test for.

      If you were a daily/heavy user, then your chances are probably still pretty good. Testing yourself at home is a great idea, though.

      Re. at-home hair tests: see the table of hair tests on our home page . Hair Confirm and Psychemedic sell very dependable & accurate home tests.

      Good luck on your test!



  17. Bad girl22
    November 22, 2015 @ 4:53 am

    Hi Jz I just smoke weed maybe 3 days ago the supervisor at the job told me to drink plenty of water and vinegar but is that enough


    • Jay Z.
      November 28, 2015 @ 1:40 pm

      For a hair drug test, no, that’s not enough!


  18. Vinny
    November 22, 2015 @ 10:41 pm

    I have been a habitual smoker for years and have a hair test coming in mid-Jan, if I shave my head now and stop smoking will that help.


    • Jay Z.
      November 28, 2015 @ 1:39 pm


      Yes, it will help.

      But you don’t have enough time to grow the minimum 1.5″ for a lab sample. Hopefully, they will accept a shorter sample.

      Be aware that if you’re a habitual user, it can take 10 days for your blood levels to drop below the minimum threshold, plus another 7 days for the last bit of tainted hair to grow through your skin. So, don’t shave until 2-2.5 weeks after your last use.

      Best of luck,



  19. Nervous
    November 28, 2015 @ 4:39 am

    I am not a frequent pot smoker but on October 11th, I smoked 2 small bowls. I just got a call about a job I really need and they said I got it, but I have to take a hair follicle drug test on December 2nd. I have short hair, the longest bit is around 3.5 inches. What are my chances of passing this test?


    • Jay Z.
      November 28, 2015 @ 1:53 pm

      If you regularly smoke more than once every 90 days, then you are definitely running a risk of failing the test w/ 3.5″ of hair and only 6 weeks between last use and the test.


      • Brandon0228
        December 16, 2015 @ 8:47 pm

        For some reason my comments aren’t showing up, so ill try a reply.. Amazon sells the nexus aloe rid shampoo, claims it to be the original formula.. it looks exactly the same as the one on the test clear website.. however the reported serial number is 605592 16035 6….. this differs from the one on the test clear website simply by the 6 in the beginning and end. Do you think it is a scam and is not in fact the original formula?
        I have stopped smoking about a month ago, system is probably clean so i was planning to start the growman method in the next month or so, as i haven’t gotten the job yet, but i know they follicle test, so i wanted to be ready… but i can’t help but wonder if amazon is selling the real stuff or a scam.
        Any input is appreciated.


        • Jay Z.
          December 22, 2015 @ 9:59 pm


          I don’t really know the answer to that. But if you read the 1-star reviews of the product being sold on Amazon, there are complaints about the shampoo not working and/or not being the original formula.

          The only place I know that definitely sells the old formula is TestClear.

          (If anyone reading this knows another source, then please let me know so I can add it to this site!)


  20. Val
    December 22, 2015 @ 6:10 am

    My boyfriend has a hair follicle test sometime in January, maybe towards the beginning of February. We stopped smoking last weekend. His hair is at a 1/2in. right now. We plan on cutting his hair every 2 weeks. Will that be good enough or will we need to try one of the remedies?


    • Jay Z.
      December 22, 2015 @ 9:45 pm


      No, sorry, but cutting your hair every 2 weeks won’t be enough.

      At the time of your bf’s test, the sample station/lab expects to clip a 1.5″ long sample of hair from his scalp line. This will contain a record of his most recent 90 days of drug use.

      Given the short amount of time between his quitting and being tested (~4-6 weeks), a 1.5″ sample will probably contain evidence of drug use.

      The only way to get around the remedies is to cut his hair down to <0.5" in length ALL OVER HIS HEAD, right before the test.

      The problem with that approach is that the lab may not accept such a short sample and he may be failed for tampering (esp. if his hair is usually much longer).

      I don't want to tell you what to do. But your bf's situation is exactly why the Macujo and Growman methods were developed 😉

      Best of luck!



  21. Your my only hope
    December 22, 2015 @ 6:59 am

    Hey JZ I have a question I haven’t smoked weed since July 26, 2015 and now I might a chance at a really good job but there is a hair follicle test in the way. The test will go back 6 months and I am afraid I will not pass because the time passed hasn’t been 6 months and I’m always around smokers and have touched it from time to time, but I don’t smoke. What do you think I should do? I will probably have a few more weeks before I have to take the test, but I don’t want to fail and embarrass my sister since I am pretty much getting the job because of her



    • Jay Z.
      December 22, 2015 @ 9:35 pm

      You won’t test positive due to second-hand exposure. The only risk you have is your use ~5 mos ago.

      There are 2 ways to reduce your risk of failing:

      1. Cut your head hair down to about 5 months of growth (2.5″ of hair length) & hope they accept the slightly shorter length.

      2. Try one of the cleaning regimens described on this page:

      Of the two options above, option #1. is the more reliable bet.


      • Stressed
        January 11, 2016 @ 2:49 am

        Hi JZ
        Went to a get together and ate two brownies only to find out they had pot in them. This was October 23. I have never used any type of drugs before or since. I have a hair test tomorrow. It’s been 76 days. I cut my hair two days ago to one inch. Can you tell me what my chances are of testing positive? Thanks so much


        • Jay Z.
          January 15, 2016 @ 7:07 pm

          Pretty good, I’d say. A single use, even brownies, is usually not enough to show up on a hair test.


  22. very scared
    January 6, 2016 @ 2:48 pm

    Can the two methods be combined? Like can I bleach / re dye hair several times and use the aloe rid?


    • Jay Z.
      January 15, 2016 @ 7:11 pm

      Yes, but it would be very hard on your hair and scalp.


  23. ed jsckson
    January 11, 2016 @ 12:49 pm

    I haven’t smoke weed in a year and change but I smoke a joint on new years. How long will my hair, blood and urine be affect by this?


    • Jay Z.
      January 15, 2016 @ 7:06 pm

      Yes, but one use is usually not enough to show up on a hair drug test.


  24. Sarah Keys
    January 13, 2016 @ 7:34 pm

    What about other drugs, ie: meth, cocaine, heroin? Will this work for those?


    • Jay Z.
      January 15, 2016 @ 6:57 pm

      Less certain, but given that THC is the hardest drug to scrub from your system, it’s probably worth a try.

      Remember, abstaining from use and cutting your hair far ahead of your test is always the best bet. The cleaning regimens are for people who don’t have that option.


  25. Worried
    January 14, 2016 @ 12:24 am

    I have been a heavy user (about a gram a day) of marijuana for about 7-8 years. I worked as a contract employee for a contract-company that works for a world wide business. They just notified our whole department that our contract is not going to be re-newed. Within 30 days they want us all to re-apply to the world wide company and be full time employee’s which is great. Except that the re-hire comes with a hair drug test. I need to pass this test. . . would cutting my hair after 15 days be worth it? Could a heavy user pass with just a shampoo or do i need to do the full JERRY G method?


    • Jay Z.
      January 15, 2016 @ 6:55 pm

      Cutting your hair within 15 days of last use AND within 15-30 days of your hair test isn’t a good bet if you are a heavy user.

      I think your best chance is a full-on Jerry G or Macujo.

      Good luck!


  26. Kim Rollins
    January 14, 2016 @ 7:23 am

    If I haven’t used anything since November and won’t be test til sometime in April do I need to do the regimen or cut my hair to pass a hair drug test?


    • Jay Z.
      January 15, 2016 @ 6:46 pm


      Probably the regimen. You’ll need to cut your hair shorter than 1/2″ (all over your head) to ensure the new growth is drug-free.


  27. Cindy McMillan
    January 14, 2016 @ 6:54 pm

    I haven’t used since 11/31/2015 I’m suppose to be getting a hair test on 1/25/2016 what do you recommend.


    • Jay Z.
      January 15, 2016 @ 6:47 pm

      You are too close to the test for a hair cut to work. Consider the Macujo or Jerry G methods described on this page.


    • Leon
      January 16, 2016 @ 5:32 am

      thats crazy i have a test that day to. However i stopped later around 12/26, goodluck to both of us.


  28. Adri
    February 3, 2016 @ 2:58 am

    I have a drug test coming up in a week and I just smoked weed 3 days ago, if I buy the Nexua aloe rid along with the ultra clean shampoo. Will I have a chance at passing? What more can I do to make sure I pass the test? Please help


    • Jay Z.
      February 4, 2016 @ 8:09 pm


      I think that’s all you can do, to be honest.

      Best of luck on your test!



  29. CJ
    February 11, 2016 @ 1:43 am

    I have a test coming up soon. My hair is too short so they will be most likely taking from my arm or leg. Will the Jerry G method work on only scalp or will it also work on other areas? Thank you.


    • Jay Z.
      February 21, 2016 @ 3:57 pm

      Both methods will work on any type of hair.

      But bleaching your underarms (Jerry G) will look VERY strange.

      And the Macujo method will irritate sensitive skin, so it’s hard to recommend.

      But it’s your body, so…


  30. Wondering...
    February 11, 2016 @ 1:46 am

    The last time I smoked was the first weekend of January and it was a very small amount. Before that I was a light smoker. Only smoking once or twice in December. If I don’t ever smoke again and I use the Macujo method will my hair stay clean or is it just temporary?


    • Jay Z.
      February 21, 2016 @ 3:54 pm

      Any hair that has been treated w/ Macujo remains clean, but new growth has not been treated so it will be as nature grew it.

      If you haven’t used for 10-15 days before your Macujo treatment, then your new growth won’t be tainted and you should be OK.

      Hope this helps.

      All the best!



  31. Worrier
    February 18, 2016 @ 7:31 pm

    I havent been using for almost 30 days now, and never smoked more than a hit or two per day, 3 hits max, with random weeks of no smoking at all for the last 3 months. I still don’t know the date of my test, just that I will be getting one eventually. I have fine light brown hair that’s fairly short. I was using frequently, but in very low doses compared to many users. I don’t think i have smoked a whole bowls worth in a day for at least 6 months. Will I be ok just using the old formula aloe rid and zydot shampoo, or should I use the Mac method with it?


    • Jay Z.
      February 21, 2016 @ 3:45 pm

      I’d do the full Macujo, if I were you.

      Best of luck!



  32. Austin
    February 19, 2016 @ 7:31 pm

    I just took a hair follicle drug test – here’s my experience:
    I got news about two weeks before the test that I had to take a hair test, and I freaked out because this is a job offer of a lifetime.
    I smoked about four times in the three months leading up, including twice in the most recent month (but more than 7 days, so it was definitely grown out by then).
    Obviously I’m not a consistent smoker but I for sure did not smoke after realizing I had the test.
    I did the Macujo method exactly as instructed about 6-7 times the week leading up (I didn’t have the nexus until then). The last time I left the vinegar and clean & clear in for about 45 mins instead of 30. The day of, I did the Zydot treatment within a couple of hours of going in.
    I didn’t shave my body hair in hopes that they just wouldn’t ask for it, or I could convince them to take it from my head. When I went in, the lady said she had to take it from my head because I had hair there. She cut from the crown of my head and made sure it was definitely down to the scalp.
    I prayed and prayed, and decided that regardless of the outcome I was done with weed for good. It is just not worth it. Drug tests, the monetary cost, the risk of getting in trouble with the law. My best advice is just stop smoking the damn stuff.
    It took 4 business days for them to get the test back to my employer, but I passed.
    I only used about 1/3 of the Nexus shampoo with roughly 20 washes. It’s insanely expensive, so if anyone wants to make a deal I can mail them the other portion of it. It’s the old kind and I’d say there’s at least 30-40 washes left, depending on how much hair you have. Reply to this comment if interested.


  33. Dank
    March 9, 2016 @ 4:16 pm

    I have been smoking concentrates heavily for years and have a hair test coming up that supposedly tests back a year. I have up to 6 months before I can take the test, how long in advance should I stop smoking if I don’t want to use any remedies. I understand I need to detox my body before hair can grow clean but I just want to be extra sure, I always thought 90 days wasn’t enough time.


    • Jay Z.
      April 3, 2016 @ 4:24 am

      For heavy users, give yourself at least 100 days from the last use to clear your system. Then cut your hair down to 1.5″ for the 90-day sample.

      Best of luck!


  34. Jim Howard
    March 30, 2016 @ 5:34 pm

    So, if he urine tests are not 100% accurate then how on earth can they be used against you?? I would urge everyone not to allow anyone to test you! Even if you don’t get the job because of your refusal to be tested, it is better than having anyone be able to truthfully say that you failed a test. JUST SAY NO TO DRUG TESTING!!!!!!!


  35. Maria
    April 21, 2016 @ 10:34 pm

    I just got offered a position for my dream internship and I was told that I had to take a urine and hair test.
    I’m currently panicking because I smoked maybe a quarter of a dime a couple weeks ago and my test is roughly in 45 days. the only time I smoked before that is before the 90 day mark. do you think that little amount of weed will show up in a hair test?


    • Jay Z.
      April 24, 2016 @ 1:22 pm

      No, I don’t think that little bit will show up. I think you’re probably safe.


    • Fritz
      August 4, 2016 @ 4:45 pm

      What were the results, my situation is similar in that I am not a user, but tried a gummy…


  36. Robyn
    April 22, 2016 @ 2:55 am

    hi jz, first, thanks so much for putting up this site, and freely offering all this information to everyone!
    I was a heavy smoker for several years, up until march 1st. I quit and havent smoked since. Now, I shave my head down to the scalp about once a month or so, and have done so since I quit, however i dont remember exactly when. I am expected to go for a interview on may 4th, and if all goes well, I will most likely b tested, hair, saliva and urine (from what others who have started there have told me, I dont know for sure, and that sounds a bit excessive, but Im going on that just in case) Now, I do not have the money to purchase that rid shampoo. I live on a very tight budget and its just not possible. If I shaved all my hair, head to toe, now. would that look to obvious, and if not, would it b enough? I have very thick body hair. what would you recommend?


    • Jay Z.
      April 24, 2016 @ 1:21 pm

      If you shave everything now (April 24), there won’t be enough hair to sample anywhere on your body until late July. Hopefully, they will drag their feet on the test.

      Best of luck.


      • Faith
        April 29, 2016 @ 10:41 pm

        Well I have a test on Tuesday. I started the Macujo method today. And plan on doing it at least once a day including Tuesday. Then after the Tide washing on tuesday I’m going to make the baking soda paste and use the Zydot Ultra Clean before I go in. I hope this works, I’m praying and staying positive. Good luck to anyone else in this situation!


        • Brian
          June 13, 2016 @ 8:11 am

          Hey how did you test turn out?


  37. Steak
    April 29, 2016 @ 10:23 pm

    Just came my my friend a hairdresser and she said all off this sounds good. One thing she recommended is cocnut oil for the scalpe and hair instead of conditioner because it will not close the cuticials like some conditioner


  38. JC
    May 13, 2016 @ 8:06 pm

    Jay, I haven’t smoked in three years, but ate an edible candy in December, and had a portion of a pot brownie about a month ago. I’m applying for a job I really want, which has the hair test. Since I’m not a consistent or habitual user, should I worry? I’ve been paranoid about even sending in my application for fear I would be denied a chance for reapplying if the test shows positive. Im a girl with long hair too so don’t really want to destroy it either, however it does get dyed once every month, does that help? Thanks for your advice in advance!


    • Jay Z.
      May 15, 2016 @ 5:57 pm

      You are probably clear for a hair test.

      Good luck!



  39. tony
    May 30, 2016 @ 4:11 am

    In was involved in a car accident April first and lost a lot of blood. Because of this I was given several blood transfusions during my week long stay. If that blood came from a drug user would that have any impact on an upcoming follicle test?


    • Jay Z.
      June 1, 2016 @ 4:38 pm

      Technically, yes, it could happen (for some drugs). But blood suppliers and hospitals screen for common drugs, so it’s highly, highly unlikely you would ever get tainted blood like that.


      • meka
        July 8, 2016 @ 8:14 pm

        Do anyone have nexxus left to sell


  40. Trevor
    July 1, 2016 @ 12:44 am

    Do you know if Testclear is reputable/ is still selling the nexxus aloe rid? I cant tell from their website.


    • Jay Z.
      July 25, 2016 @ 9:46 pm

      Yes, TestClear still sell the old version of Aloe Rid. Their website is kind of old, but they are very reputable. They’ve been selling online for I think 15 years.


  41. Lisa
    July 31, 2016 @ 8:01 pm

    Hi Jay- I know this might be a strang question, but here goes. I’m having a hair follicle test sometime this week (possibly tomorrow). I don’t smoke personally, but my adult daughter does, daily. She does not live with me, but comes to my house nearly every day. I know she uses my hair brush, hair bands, etc. Will this cause me to fail the test? I didn’t think about this possibility until late last night & soaked my brush in a variety of things (tea tree oil, listerine, rubbing alcohol, etc), but I had already been using my brush regularly. Will her use of my brush contaminate my hair? Thank you for your advice.


    • Jay Z.
      August 1, 2016 @ 10:49 pm

      Lisa, no, you aren’t at risk. Just make sure you wash your hair thoroughly & brush it well before the test, so none of your daughter’s hair accidentally gets taken with your sample.


  42. Suni
    September 1, 2016 @ 9:33 pm

    I haven’t smoked for over 2 1/2 years. I shaved my head, when I knew my system was 100% clean. I’m involved in a CPS case that is about to close, but I had a moment of weakness and smoked a small amount about a month ago. I already have products that include the active ingredients for the Mancujo process, but feel the need to inquire about the Nexis product. My suave shampoo and aloe vera gel include propylene glycol, and only cost a few dollars each. I cannot spend the money for the Nexus product that is so adamantly suggested here. If I substitute the products that I already have, can I allow my paranoia to abate?


    • Jay Z.
      September 8, 2016 @ 10:16 pm

      The only evidence I have seen mentions the old formula of Nexus Aloe Rid. It’s possible that the reason Nexus works is the propylene glycol content, or it may be a mixture of chemicals.

      I’m not a chemist, so I don’t want to recommend a substitute unless there’s clear evidence it works. And I haven’t seen that, yet.


  43. Luna
    September 2, 2016 @ 12:17 am

    My bf wants to get a good job that dies hair test. We have stopped smoking for about a month. Can we just use one of the shampoos or do you suggest the whole regime?


    • Jay Z.
      September 8, 2016 @ 10:11 pm

      Do the whole regimen.


  44. Erik
    September 8, 2016 @ 1:55 am

    Hey I ate a pot brownie over 60 days ago and I wasn’t a avid user of pot. I have a test in a week or so am I good only have eaten once sixty days ago?


    • Jay Z.
      September 8, 2016 @ 9:39 pm

      Yes, you’re probably fine if you only had one brownie. Good luck on your test!



  45. Matt
    October 12, 2016 @ 12:45 am

    will armhair show marijuana use from 6 months ago? arm hair was about 1 inch and they took all my fore arm hair to test about the size of a cotton ball?


    • Jay Z.
      October 21, 2016 @ 8:08 pm

      It can. Arm hair grows much slower than head hair, so 1″ could easily back 6 months.


  46. J
    October 15, 2016 @ 6:06 am

    I just left a reply, but I have a question too… I’ve been clean for almost 14 months, but I’m on probation & have to take a follicle test every 6 months. My first one will be in November. Until August of last year, I was heavily using meth, weed, & benzos. Since August 23, 2015, I haven’t touched anything… I have pretty long hair. Will my past use show up?


    • Jay Z.
      October 21, 2016 @ 7:57 pm

      You are at risk.

      You probably have strong evidence of drug use within your youngest 1-1.5″ hair (out from the scalp). Best bet is one of the cleaning regiments (Macujo/Aloe Rid or Jerry G/bleach).

      Sorry about that:-(


  47. Thanks in Illinois
    October 19, 2016 @ 5:05 pm

    Hello JayZ and thanks very much for all the great information on this site. I’ve come to this site several times over the last few months looking for information and it’s been very helpful to this ole guy who’s been smoking since 1974! I finally had to quit after losing a great job because of a drug test. When I first started there they used urine tests and I used different methods for passing the randoms but the best had always been synthetic urine. Then they switched to mouth swabs and I panicked..only to find out after some research that the swab is actually the easiest one to pass. Rinse with hydrogen peroxide, simple and effective as I’ve passed many of them since I learned this trick and I was a very heavy user smoking several times a day, even at work. The event that led me to losing my job are complicated but I was finally caught.

    My question: On June 15 of this year I quit all together once I learned that I would probably have to take a hair follicle test for my CDL licence. A couple weeks ago in a moment of weakness I took about a half a hit from a hitter. MAN WAS THAT GREAT!! But now I’m wondering if that little amount is enough to fail me on a hair follicle test?


    • Jay Z.
      October 21, 2016 @ 7:52 pm

      No, one hit after 100 days of abstinence shouldn’t raise your TCHOOH blood levels any where near the min cutoff. So, your hair should be safe.


  48. Robbie
    October 19, 2016 @ 7:23 pm

    Sorry for the double post:

    Thanks so much for everything Jay!

    I had a couple (maybe 4 at most) bowls 2 nights ago after about 1yr and 2 months abstinence. Will I pass a hair test next month? Anything to do if hair test gets postponed further? No other usage planned.



    • Jay Z.
      October 21, 2016 @ 7:50 pm

      Yes, I think you are safe. Don’t do any more, though.

      Good luck on your test.


  49. David
    November 1, 2016 @ 5:00 pm

    So does this only work for thc or will it strip my hair of absolutely every drug? And how badly does this damage your hair? Does it fall out? Anyway thanks for the info JZ.


    • Jay Z.
      November 12, 2016 @ 4:31 pm

      The evidence I’ve seen is for THC. No, your hair doesn’t fall out. But it’s hard on your scalp/skin.


  50. James
    November 8, 2016 @ 12:38 am

    I smoked weed about 4 times 9 weeks ago and have to go for a hair test shortly. Would you recommend I try one of these methods?


    • Jay Z.
      November 12, 2016 @ 4:14 pm

      You are on the borderline.

      If it were me, yes, I’d use Macujo or Jerry G, depending on whether you are willing to bleach your hair (Jerry G) or not (Macujo).


  51. Steve
    November 9, 2016 @ 1:21 am

    Hey jay took two hits a week ago and was clean before that 100% I have a hair folical test in a week or two. Was it enough to be worried about?


    • Jay Z.
      November 12, 2016 @ 4:09 pm

      I wouldn’t be that worried. Two hits in your life shouldn’t show up.


  52. Joe
    November 10, 2016 @ 8:06 pm

    Have a test for a job coming up & I smoked twice ( half a joint) about 4 or 5 weeks ago. Shaved my head & body hair today. The test is about 3 months from now. Told it will go back 6 months not 3. What’s my outlook?


    • Jay Z.
      November 12, 2016 @ 4:07 pm

      Well, when you show up you won’t have 6 months of hair available.

      But I wouldn’t worry too much. Your situation isn’t that unusual these days, with modern grooming habits and hair styles.

      My guess is they will go ahead and test you for 90 days, then retest later on if they want the full 6 mos.

      They might be saying, “6 months back”, just to scare-off regular users.

      Best of luck!


  53. Jay Z.
    November 12, 2016 @ 4:28 pm


    You are def. at risk, so I’d do the Macujo. I’m assuming with dreads that you wouldn’t want to bleach your hair (Jerry G)…


  54. Lesley
    November 24, 2016 @ 2:37 pm

    I have long ass, thick ass hair and the nexus bottle is only 5 fl oz… im worried i should by 2 nexus bottles but shit thats $500! Do i need to clean my whole head of hair, or just the first 2-3 inches coming out of my scalp? Thank you!


    • Jay Z.
      November 26, 2016 @ 10:23 pm

      Good question! Focusing only on the first 2-3 inches out of your scalp should do the trick.

      Sample/lab stations are instructed to cut the hair sample from the scalp line, out.


  55. RT
    November 27, 2016 @ 8:26 pm

    05592 16035 old
    6 05592 16035 6 is the bar code I can find. Is this the same one?



    • Jay Z.
      November 29, 2016 @ 10:21 pm

      Yes, it’s the same.


  56. ddd444
    December 10, 2016 @ 7:29 pm

    Does sweating remove toxins from hair?


    • Jay Z.
      December 15, 2016 @ 11:13 pm

      Not to my knowledge. I believe that is a myth.


  57. Blake
    February 14, 2017 @ 9:53 am

    Jay thanks for all the great post first of all. Please help me out on my situation though. My childrens mother just sprung child support papers and custody on me so I told my lawyer that I had smoked prior to knowing this was going to happen pretty regularly. He said I would have to take a hair test if she pulled that card. So my hair is already buzzed on my head, but I went ahead and buzzed everything else also. I should have 90 days, but what do you recommend on this life changing matter because I will do anything not to loose my kids?


    • Jay Z.
      February 15, 2017 @ 5:06 pm

      You have already done what you need to do.

      If I were you – since you’ve already shaved your head – I’d try going into the test with only ~1 inch of hair. That will eliminate the oldest ~30 days of history from your hair, and it’s long enough that they may accept the sample.

      If they don’t accept that short of a sample, then they may ask you to return in 4 weeks, when your hair is long enough… which only helps you.

      Good luck on your test. No one should lose custody of their child… for using natural marijuana. That’s crazy!


  58. CALI
    February 22, 2017 @ 9:39 am

    Hello. I am a regular mj smoker. I smoke blunts not joints which contain like .5 to a gram each about 4 times daily. I have decided to stop smokin to get a better job but my question is if my husband still smokes heavily in the house will my efforts be in vain. Also, can the thc be transferred to me through his cum cuz we obviously dont use condoms? * sorry so graphic but i need to know.


    • Jay Z.
      February 23, 2017 @ 4:58 pm

      No, THC cannot be passed into your hair into any other part of your body, by your husband. Not enough to cause you to fail a hair test, for sure.

      You’ll be fine, if you abstain.


  59. J.R.
    March 9, 2017 @ 1:17 am

    If you shave all your hair and stay clean for a few weeks will your hair again be dirty as it grows out, or will you test clean as long as you stay away from THC, etc?


    • Jay Z.
      March 10, 2017 @ 4:41 pm

      It doesn’t work that way, because drug traces enter your hair follicle from your bloodstream.

      Until your blood level drops below the minimum test threshold for the drug, all new hair will be tainted.

      So, shaving doesn’t help as long as your blood is tainted.

      For most people, it takes 15-45 days for drug traces to dissipate enough in your blood to begin growing clean hair – depending on the drug and how much you used.

      On top of that, it takes tainted hair about a week to grow all the way through your skin.

      Once clean hair starts growing through your skin, you need to let enough of it grow to be tested. For most people, that’s 1.5″ for a 90 day test – at least 90 days’ worth of growth.

      This is why I recommend abstaining for at least 100 days before a hair test for light MJ user, and 110-120 days for a heavy user.

      Hope this makes sense. Good luck!

      If you are within this margin of error, then consider the cleaning regimens discussed above.


Leave a Reply

Your email address will not be published. Required fields are marked *

Real Time Web Analytics