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Need To Pass A Hair Drug Test In Your Future?
You’ve come to the right place.
On this site, you’ll find the latest information about how to pass a hair follicle drug test, get your questions answered, and learn about the four proven ways to beat it – including which THC detox shampoos work best, how long you need to abstain – and more.
If you have a question about your situation, I’m more than happy to help. Just leave a comment at the bottom of any page.
Alright, let’s get straight to it:
Four Proven Ways To Beat a Hair Drug Test
If you’ve been using drugs frequently for more than a few days recently and have a hair drug test coming up soon, then there are only four proven ways to pass a hair drug test, as follows:
- Abstain for 110+ Days: The most proven way to beat a hair test is also the simplest. Just stop using at least 110 days before your next hair test.
- Shave It All Off: Don’t have 110 days before your test? Then you can try shaving your head and your body. But be warned: most test labs are onto this trick. If they can’t get a 90-day sample of hair, then they may fail you.
- Do-It-Yourself Detox: You can try stripping THC and other drug traces from your hair using a proven home hair cleaning regimen and/or detox shampoo. The Macujo and JerryG methods are two proven at-home hair detox regimens that lots of people swear by.
- Use Detox Products That Work: Only a select few hair detox shampoos can clean traces of alcohol and drugs out of your hair. But skip the drinks and pills – they won’t help you on a hair drug test.
What Would You Like To Know?
- How The Hair Drug Test Works
- Proven Ways To Beat The Hair Drug Test
- Two Home Remedies That Work
- Detox Products That Work
Hair Drug Tests Are Now the Norm
In the U.S., the hair drug test is gaining favor over older and more frequently used urine and blood tests for three reasons:
- Hair tests detect a much longer history of drug use: Hair stores a longer history of drug use than either urine or blood, which are limited to days for most drug types.
- Hair tests are harder to cheat: there are no privacy issues with removing a hair sample from a person’s head, so the sample can be taken in full view.
- Older tests are losing effectiveness: urine testing has become less reliable due to the proliferation of cheat products like synthetic urine and powders.
Occupational, Health, and Safety magazine recently recommended that H.R. departments use it over other methods.
In response, the market for home remedies and cheat products has boomed. Today, there are dozens of companies claiming they can help you pass a hair drug test with flying colors.
But can they?
Why I Built This Site
A few months ago, a good friend asked me to check the internet to see if there was any way to beat an upcoming hair test he was facing. We were in a restaurant, so I did what most people do – I Googled it on my phone.
The search results frustrated me. Most of the sites were unreadable, old forum posts, or filled with cheesy bylines and popups. NONE of them worked on my phone (see example below).
I’m an app developer, so this irked me. Don’t these people understand their audience (young, mobile)??
So, I took it upon myself to collect the most reliable facts and information I could find and get it into a site that anyone can read on their mobile phone.
To get smart, I interviewed friends that have used some of the home remedies, detox products, and test kits I found; I visited dozens of forums online; and, I spent a LOT of time researching the subject both on and off the web.
I learned there is compelling evidence that some products and cleaning methods improve your chances of passing a hair drug test – even if you’ve recently smoked pot, snorted cocaine, or taken narcotics. I also learned which products and methods work the best, based on feedback from real people who used them.
There are three groups of people who might find this site useful: drug users, employers, and health professionals. Each has a stake in the hair drug test.
Let’s start by discussing HOW hair drug tests work (not too complicated), then move into the various methods people are using to get around them today.
How The Hair Drug Test Works
The reason a hair follicle test works are simple: your hair needs blood to grow, and it gets that blood via the root of the hair follicle.
When you use drugs, traces of the drug are deposited directly from your bloodstream into and onto the hair shaft, via the hair follicle. Either the drug itself is deposited, or your body may react to a drug by producing metabolites, which are then deposited onto and into your hair.
As your hair grows over time, the chemicals that are deposited onto your hair store a record of your drug use, sort of like the rings of a tree record the changing of the seasons.
What Happens During the Test
When you arrive at the test location, a small sample of hair will be cut from the top or back of your scalp right at the skin line and placed into a sealed container.
A sample length of about 1.5 inches is typically taken because human hair grows about 1-2 inches every 90 days, and the period most commonly sampled is 90 days.
The sample is then sent to a lab to be tested for trace chemicals. Turnaround time on the hair follicle test is typically short, less than three days.
Which Drugs Are Detected By A Hair Drug Test?
The following chart shows which drugs are detectable by hair drug tests – and how far back in time drug use can be detected for each method.
As you can see, pretty much every drug stays in your hair, once it’s there.
Detection Times for Alcohol and Other Drugs
|Drug Type||Cutoff Level||Detection|
|Marijuana||50 ng/mL||90 days|
|Cocaine||300 ng/mL||90 days|
|Amphetamines||1000 ng/mL||90 days|
|Opiates||2000 ng/mL||90 days|
|PCP||25 ng/mL||90 days|
|MDMA||500 ng/mL||90 days|
|Benzodiazepines||300 ng/mL||90 days|
|Barbiturates||300 ng/mL||90 days|
|Codeine||100 ng/mL||90 days|
|LSD||0.5 ng/mL||90 days|
|Nicotine||200 ng/mL||90 days|
While some drugs will naturally degrade over time, THC traces tend to remain in your hair until you cut it.
NOTE: Most employers do not test for the following drugs:
- Hallucinogens (LSD, mushrooms, mescaline, peyote)
- Anabolic Steroids
- Hydrocodone (Oxycodone, Vicodin)
The hair follicle drug test was originally designed to detect heavy long-term drug users, not occasional pot smokers. For short-term testing, employers and labs still use urine and blood tests. That said, a hair test may detect an infrequent user.
A hair test can detect drug use for up to 12 prior months, but accurate results are typically limited to the past 90 days. In contrast, urine and blood tests cannot test for use further back than a few days. This is why a lot of employers prefer the hair follicle test.
Interestingly, because hair grows at a steady pace, a hair drug test can also tell an employer exactly when someone took drugs and when they stopped. Most tests don’t report the timeline, but take this fact into account when answering questions, after the test.
How Long Does It Take for Drugs To Get Into My Hair?
For head hair, it takes 5-7 days for tainted hair to be available for sampling because it takes that long for hair to grow from the root to above the scalp line.
From that point forward, drug traces will remain in your hair until you either cut it or strip it out with chemicals.
Hair Samples From Other Parts of Your Body
If your head hair is too short for the lab to sample 90 days, then the test station may choose to sample hair from other parts of your body.
In general, body hair grows more slowly than the hair on your head. The table below explains the drug test limitations of each source of the hair.
|Source||Limitations of Sample||Detection|
||1 cm=1 mo.
up to 1 year
|Pubic Region|| Alcohol Testing only:
|Leg|| Alcohol Testing only:
How Accurate is a Hair Follicle Drug Test?
The hair drug test is just as accurate as a blood or urine test, with the added advantage of detecting a much longer history of use.
Most drug test companies and labs claim 99% accuracy for all of their tests.
Which kinda makes you wonder: how the heck can anyone beat a test if it works 99% of the time?
The short answer, of course, is that just as with urine tests, hair drug tests are NOT 99% accurate in the real world.
People find ways around them. Drug tests have flaws.
Drug testing accuracy has been declining for many years.
Hair Drug Test Kits & Labs
It’s helpful to know which labs and tests are used most often by employers, and therefore are likely the most accurate.
For example, Psychedemics is widely considered the best hair testing company in the business, so if your test is handled by them, then you’ll need to bring out the big guns.
Also, keep in mind that you can also order a test to make sure you or your loved one tests clean.
To see a list of all accredited drug testing labs in the U.S., click here.
Four Proven Ways To Beat a Hair Drug Test
OK, so this is where the controversy begins.
I’ll start with the proverbial caveat: there is no single method, detox kit, or detox product that can guarantee you’ll pass a hair drug test. None.
That said, there are a few methods, products, and services that can give you a fighting chance.
All of these methods work by reducing or eliminating the residual drug footprint in your hair.
Some of the detox product manufacturers back their claims with up to 200% money-back guarantees, so apparently they are quite comfortable making them.
Let’s walk through each type of solution, starting with the simplest.
1. Abstain for 110+ Days
But, honestly, if you are worried about getting or keeping a great job or you risk losing your child over a hair drug test, then your best bet is to just stop using, at least 110 days before your next hair test.
Why 110 days?
Well, if you smoke weed moderately or heavily, it takes up to 10 days for drug traces to drop in your blood, plus another 100 days to grow 1.5″ of clean hair through your scalp – enough to be sampled for a standard hair test (which looks back 90 days).
If your hair test is testing for drug use even further back, then you’ll need to grow longer hair – and abstain even longer.
Of course, not everyone gets 110 days advance notice of a hair drug test. We wish!
If this is your situation, don’t fret – you have three more options (keep reading)…
2. Shave It All Off
When hair tests came onto the scene in the mid-2000s, it was obvious to everyone that the most effective way to beat a hair drug test is also the simplest: about five days before your test, just stop using drugs and shave your entire body. Any hair sample that grows after that point will be clean because it takes about seven days for new hair to make it up to the scalp/skin line.
Maybe a little too simple, it turns out. There are a couple of fatal flaws with this approach.
First of all, many employers will automatically fail you if you walk into the test center with your head looking like a bowling ball. Think about it: you’ll have to explain why you shaved every hair off your body less than a week before your “hair” drug test.
Second, most employers are onto this simple hack, so it’s not advised. If they can’t get the hair from your body or head, then they will almost certainly test you using a urine or blood test, which will detect more recent drug use.
3. Do-It-Yourself Detox
Some regular drug users swear by two deep hair cleaning methods that you can do yourself at home using over-the-counter products.
Both methods remove traces of THC metabolite from your hair using chemicals.
There’s a lot of debate over whether these two methods work that well.
But I haven’t seen any compelling evidence that supplements and drinks will help you pass a hair drug test. They are designed to help you pass a urine test, after all.
Purchasing a detox shampoo to rid your hair of drug traces before the test is the easiest path, so a lot of people choose this route.
The problem is, there are lots of shampoos claiming they will eliminate all traces of drug use from a person’s hair follicles.
Most products can’t do it.
Stripping chemicals out of your hair with a special cleansing shampoo is a popular solution, but be warned: only a few hair detox shampoos work as claimed. Most fail because they can’t get into the hair shaft itself, which is where many drug traces live.
As is true with any powerful over-the-counter remedy, the stuff that works costs more. So pay attention to the price. From what I can see, anything that costs less than $20 probably doesn’t work as claimed.
Hair Drug Tests: Myth and Facts
Here are some of the most common myths regarding hair drug tests we’ve seen flying around and the facts.
Myth: I’ll be safe if I shave off all my hair.
Fact: No, you won’t. Labs are used to such tricks.
We’ve touched a bit on this above. Shaving your head looks like a dead simple solution, but it likely won’t work. If the lab doesn’t automatically fail you, they’ll take a hair sample from your body.
This could actually be worse for you since it’s likely that body hair can show drug use further back than the 90-day drug use history head hair offers.
Myth: Any shampoo will clean the drugs off my hair.
Fact: You need special shampoos to strip the drug metabolites off your hair.
Ordinary shampoos are not nearly strong enough to remove traces of THC or other drugs from your hair. You’ll need a special shampoo that’s formulated specifically for hair drug detox.
But be careful which detox shampoo you choose. Many brands, especially the cheaper ones, make big but untrue claims about the effectiveness of their shampoos.
See our reviews of the best detox shampoos above, including Aloe Toxin Rid (old formula), Zydot, and Clear Choice, among others.
An effective detox shampoo will cost you more, but it’s worth it when it’s a job on the line.
Myth: Hair drug tests are used for only a few drugs
Fact: This was true a few years ago, but it no longer is.
More and more drugs can now be tested using a hair sample. Here are some of the drugs that can be detected using a hair follicle drug test.
- Benzodiazepines (Xanax)
- Buprenorphine (Suboxone)
- Zolpidem (Ambien)
- Synthetic Marijuana
- Amphetamines and methamphetamines
- Opiates (heroin, codeine, and morphine)
- Expanded Opiates (hydrocodone, oxycodone)
Myth: Labs cannot use pubic hair for a drug test.
Fact: This is true for some labs, but not all, so we wouldn’t recommend betting your career on a lab’s testing policies.
As we have discussed, shaving your head doesn’t save you from a positive drug test. The lab can take body hair, usually from the armpit, chest, face, or legs.
What if you shave off all those areas as well? Surely, they won’t pluck a hair from down there, right?
Some labs, as a matter of policy, won’t use pubic hair for drug testing. But some do. If you plan to shave as a way of beating a hair drug test (which we don’t recommend), you’d better shave everything from head to toe, as you can’t be sure the lab won’t take anybody hair they can use.
However, experts recommend against using pubic hair in a drug test because of potential contamination from urine. Urine contamination can actually increase the concentration of some drugs.
Hair Drug Test Cutoff Levels
Even if you have used a certain drug, you may be lucky and pass a hair drug test if the drug levels in your hair are below the cutoff.
The lab doesn’t automatically call a positive test if you have any traces of drugs in your hair. There has to be enough of them.
The cutoff level (expressed in picograms per milligram) varies for different types of drugs. Here are the common cutoff levels in a standard 5-panel hair drug test.
- Amphetamines, including methamphetamine, amphetamine, and ecstasy – 300 pg/mg for the screen (initial) test. The same cutoff also applies to the confirmatory test.
- THC – 1 pg/mg for the screen test and 0.10 pg/mg for the confirmatory test.
- Opiates including heroin, oxycodone, and morphine – 200 pg/mg for both the initial and confirmatory tests.
- Cocaine – 500 pg/mg for both the initial and confirmatory tests.
- PCP – 300 pg/mg for both the initial and confirmatory tests.
Frequently Asked Questions
What are the best DIY methods to pass a hair follicle drug test?
The two DIY hair detox techniques that seem to work for most people are the Macujo method and the Jerry G method. They are tough on hair, but they give you the best chance of passing your test.
We’ve not seen any other DIY method that’s successful enough for us to recommend.
How far back does a hair follicle test detect drug use?
A hair follicle drug test checks for drug use up to 90 days back. Hair can show drug use much further back than that. However, labs only use 1.5″ of hair from the root, which shows a 90-day drug use history.
How to read a hair follicle drug test result?
You’ll get your test results in 24-72 hours. A negative test result arrives sooner, while a positive result takes longer because of the second confirmatory test.
Your test results will display the screening and confirmation cut off levels. It’ll show the levels of different drugs detected in your hair.
If the detected levels are above the cutoff, that’s a positive test. If the level of drugs detected is below the cutoff, that’s a negative test.
Can a hair test detect one-time use?
It is unlikely that a hair drug test will be positive if you use a drug just once. Most drugs require repeated use for enough metabolites to be deposited in the hair.
However, if you took a large number of drugs during that one time, enough metabolites may have entered your hair to get a positive test result.
How much does a hair drug test cost?
A hair drug test costs between $50 and hundreds of dollars depending on several factors.
A home hair drug test kit will be cheaper than a lab test. For a lab test, the cost depends on the test panel. A panel that tests for more drugs will cost you more.
Note that if a potential or current employer requests a drug test, you usually don’t have to pay anything. The employer covers the costs of the test.
Can I use lice treatment to pass a hair follicle drug test?
You may have heard about some stoners using lice treatment to pass a hair drug test. However, we have not seen any evidence that lice treatment works. We recommend sticking to proven detox shampoos and DIY hair detox methods.
Can I use a hair relaxer to pass a hair drug test?
Hair relaxers contain chemical compounds that strip some of the drugs from your hair. One study showed a significant decrease in drug levels in hair that had been treated with a relaxer.
So, yes, you can use a hair relaxer to pass a hair drug test. To be safe, we recommend combining it with a good quality detox shampoo.
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- Read my review of Old Style Aloe Rid shampoo, where I explain how the shampoo works and where to buy it safely.
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Best of luck!