How to Pass a Hair Follicle Test

Tyler Collins

Written by

Tyler Collins

Published

September 11, 2024

Clinically Reviewed by

Rob McKinstry, LPHA

Lab tech with a magnifying glass on illustration of hair strand

Are you scheduled to undergo a hair follicle test soon? Perhaps you’re nervous about this important test and are looking for ways to pass it. Most drug tests use urine or blood samples, but some companies or organizations may require a hair follicle drug test.

If this is your first time doing this specific drug test, it’s normal to feel a little anxious. However, there’s no need to panic!

In this blog post, we will give you an overview of what a hair follicle test is. We will also provide some information on how to pass a hair drug test. By having this information on this type of drug test, you can avoid getting worried about getting a positive result.

What is a hair follicle test?

A hair follicle test, also known as a hair strand test, is a type of drug test that uses a hair sample that is taken from the scalp. It is considered to be one of the most effective and accurate methods for detecting long-term drug use.

Compared to a urine drug test or a blood drug test, the window of detection is much longer. Most substances can be detected within 90 days of last use. This makes it a more accurate test for detecting chronic drug use.

However, the downside to this type of test is that it cannot detect recent drug use within the past week or so. It may take several days to show up in hair follicles, which means that drug test results may not detect an illicit substance on someone who has used drugs recently.

To get accurate drug test results, the part of the hair sample needs to be 1.5 inches long, which will be cut from your scalp. If there is not enough hair growth from your scalp, body hair can also be used as a sample, but it is not as accurate.

How to Pass a Hair Drug Test

If you’re anxious about passing a hair follicle drug test, you might be looking for ways to make sure you don’t get a positive test result for any substances you may have used.

Here are a few tips that might help:

1) Stop taking in any illicit substance or prescription drugs at least 90 days before the test.

Medical staff looking at a man’s balding scalp before hair drug test Drug tests are often random and unexpected, that’s why when you’re told that a hair follicle drug test is going to be conducted, it can be disconcerting as it can trace more than 3 months of your drug history.

If you’re planning to change employment or nearing your annual physical exam, avoid drug use as soon as possible. Drugs can take a long time to clear from your hair follicles, so stopping use as soon as possible gives you the best chance at passing the test.

2) Avoid taking supplements or medications that could potentially trigger false positive results.

Some supplements, exotic food products, and over-the-counter medications may contain substances that can cause false positives on drug tests. If you can avoid taking these for several weeks, it may reduce your chances of getting a false positive result.

If you have already been taking these supplements, make sure to disclose any medication or supplement use before the test so it can be taken into account during the interpretation of results.

3) Disclose prescription medications you’re taking.

If you have a valid prescription, make sure to disclose it before the test. This can help prevent a false positive result and may also protect your job or standing in an organization.

Because a hair drug test can detect 90 days of drug use, it’s important to recall and note down any medications you’ve been prescribed in the past few months before the test. This can help explain any positive results and avoid any issues with your employer or organization.

4) Get help from a professional drug addiction rehab

While the 90-day detection window may be applicable for most drugs, repeated or chronic drug use can potentially result in detection beyond the 90-day window. If you’re concerned about passing a hair drug test due to ongoing or previous drug addiction issues, it’s important to seek professional help from a drug rehab center.

Not only will this improve your chances of passing the test, but it can also have long-term benefits for your health and well-being. A professional rehab program can provide you with the support, resources and guidance needed to overcome addiction and lead a healthier lifestyle.

When is a hair follicle drug test required?

Man holds up his red hair while doing an o a thumbs up signHair follicle drug tests can be required in various situations, depending on the policies of employers, regulatory bodies, and educational institutions. Understanding when these tests may be mandated can help individuals prepare accordingly. Here are four common instances when a hair follicle drug test may be required:

Pre-employment Screening

Companies use drug testing, including hair follicle tests, during hiring to ensure safety and productivity, especially in roles with high responsibility or safety concerns.

Athletic Competitions

Athletes are subjected to hair follicle drug tests by sport’s governing bodies to detect performance-enhancing drugs and uphold fair play.

Student Drug Testing

Educational institutions may use hair follicle tests for students in extracurricular activities to discourage substance abuse and maintain safety.

Hair follicle tests can provide evidence of drug use in legal cases, especially those involving substance abuse or custody disputes.

By being aware of these situations, individuals can better prepare for the possibility of a hair follicle drug test and understand the implications of their results.

Best Orange County drug and alcohol rehab

The Lighthouse Treatment Center can help you finally break free from addiction. Our Orange County drug and alcohol rehab program provides evidence-based treatments, personalized care, and a supportive community to help you achieve long-term recovery.

As we guide you in your sobriety journey, you can reduce the anxiety of facing a hair follicle drug test by participating in our comprehensive treatment program. Our experienced and compassionate team will work with you to address any underlying issues that may have led to substance abuse, develop healthy coping mechanisms, and provide ongoing support after you complete our program.

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