How to Pass a Hair Follicle Testing?

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The number of scientific studies acknowledging the benefits of occasional highs is continuously on the rise. Thankfully, state laws are following accordingly, allowing medical and recreational use of certain substances, like cannabis.

Unfortunately, drug use and substance abuse (including alcohol and tobacco) are still frowned upon in the work environment. Drug-free workplace, many employers try to cultivate might be well-justified, but no one should lose their job for some off-hours fun, as long as they’re responsible while working.

Regardless of where you stand on the subject, mandatory drug tests are becoming more common, and so are the methods for beating such tests. And as the number of cheat methods and synthetic urine products increases, so does the number of employers that mandate hair follicle testing instead of urinalysis.

We wanted to know what hair testing is, how it works, and how to pass a hair follicle test, and still enjoy your favorite substance. Here’s what we’ve learned.

What is Hair Follicle Testing?

Hair follicle testing is a laboratory method of testing for drugs using hair as a testing sample. This method screens your hair for drug use, or misuse of prescription medication, by detecting traces of illicit substances in your hair strands.

It’s quite an expensive procedure when compared to urinalysis. However, its high accuracy and the long detection window of up to 90 days, justify its steep price.

urine test

To top it all off, hair tests are notoriously hard to fool or beat, as you can’t easily tamper with the sample.

When you’re submitting to urine testing, you can always undergo a detox, or use a substitute sample. Synthetic urine is the most commonly used method to beat urinalysis when you’re out of detox options. But hair tests are different when it comes to sample collection and processing.

A lab technician almost always does hair sample collection by cutting the hair directly from your head and preventing you from tampering with the sample.

That collection method, among other things, makes hair follicle testing an increasingly popular testing method among employers.

Luckily for you and us, you can tamper with your hair before it’s collected as a testing sample. That way, you can detoxify your hair and prepare it for hair follicle testing.

But, before we talk about hair detox, let’s talk briefly about how hair follicle testing works.

How Do Hair Tests Work?

To make the sample, the lab technician has to cut a sample of your hair. They cut the lock of your hair at the scalp, usually about an inch and a half long.

Afterward, the hair sample is thoroughly washed to remove any impurities or compounds that may trigger false positives during testing.

After washing, your hair is diluted to form a solution suitable for further analysis. Hair follicle testing includes two analytical methods: the detection test and the confirmatory test.

The first testing method uses immunoassays to determine the presence of drugs. You’re most likely familiar with this testing method, as it is essentially the same analytical method used with at-home urine drug test strips.

If the first test detects the presence of drugs or other substances, the sample is then submitted to further analysis.

The second test or the confirmation test uses gas chromatography-mass spectrometry to determine the concentration of drugs in the solution.

If the concentration levels exceed the specific cutoff values for certain drugs, your sample is positive, and you’ve successfully failed a drug test.

But if the concentration levels fall short of cutoff values, the results are negative, and you’ve passed a drug test. In that case, the results of the first test are ruled out as false positives.

pass a hair follicle testing

As you can see, there’s not much room for sample “correction,” when it comes to hair follicle testing. But you can tamper with the hair before you come to the lab and submit a sample for testing.

So, you want to know how to pass a hair test?

How to Pass a Hair Test?

To provide you with a more elaborate answer to your question, we contacted the experts at We had a chat with Mr. Tyrone Calderon, and here’s what he said:

“Yea, hair follicle drug tests are a buzzkill. But, with enough time, and a proper hair detox method, you can successfully pass a hair drug test. You just have to put in the work.”

According to him, there are tons of methods out there that can help you pass a hair follicle drug test. Some are more effective than others, while some don’t work at all.

To save you the trouble, we compiled a list of useful, as well as ineffective methods people resort to in hopes of passing a hair test.

⊕ STOP USING DRUGS – This method is pretty self-explanatory, and it’s more of a step than an actual detox method. Refraining from drug use won’t detoxify your hair in any way, but it will stop the drugs from entering your hair once it’s clean.

⊕ Specialized Hair Detox Shampoo – Whatever enters your hair follicle, becomes a building block for hair. And once it grows past the follicle, it stays in your hair forever, or until you cut the hair off. Regular shampoos aren’t potent enough to remove the toxins from your hair, which is why you should resort to high-quality hair detox shampoos.

⊕ Use a structured detox method – these are the well-known Macujo, and Jerry G methods, which include several hair products and chemicals. They’re proven as highly effective, though potentially damaging to your hair.

⊗ Shave your head – Shaving your head clean might be your first instinct and a reasonable step. But the truth is that it’s an ineffective method of trying to fool a hair drug test. It might raise red flags, cast suspicion, and it simply won’t work. The lab technician can use your body hair to produce a sample, as well as your nail clippings.

⊗ Dye or bleach your hair – Dying and bleaching your hair are essential steps in any structured detox method. On their own, however, they have almost no effect on drug metabolites stuck in your hair.

⊗ Lice treatment – Lice treatment products are great at exterminating lice, but they don’t have any effects on toxins in your hair strands.

One last “hack” you can use is to call in sick and get a doctor’s note, as it’s the only justifiable excuse for missing a drug test. Your employer might postpone your test, so use the time you “bought” to prepare appropriately.

detox from THC

More info can be found in this guide:


Only high-quality hair detox products or structured detox methods enable you to pass a drug test successfully.

We strongly advise that you look into both the Macujo, and the Jerry G methods, as well as some high-quality hair detox products.

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