How to Pass Hair Follicle Drug Test for Marijuana

The hair follicle drug test is becoming a more popular option than saliva and urine tests because it can detect drug metabolites even when taken months ago. Hence, the common question “How can you beat a hair follicle drug test?” There are many ways to do so and particular do’s and don’ts to consider prior to undergoing the test.

What Is a Hair Drug Test?

Understanding the nature of the test will help you beat it, and even if you’re not a drugs-of-abuse user, the knowledge gained will help you stay comfortable during the test and while awaiting the results. Aptly named, a hair drug test helps determine if the person uses drugs of abuse and misuses prescription meds through a hair sample.

What Can a Hair Drug Test Detect?

The hair drug test is usually requested to check for the presence of:

  • Amphetamines: MDMA (ecstasy), methamphetamine, MDEA (eve)
  • Opiates: Morphine, codeine, 6-acetyl-morphine, heroin
  • Marijuana (THC)
  • Phencyclidine (PCP)
  • Cocaine

How Hair Drug Test Works

To understand how the laboratory test works, below is a detailed discussion of its main principle and procedure.

Main Principle

As with anything that goes inside your body, the by-products reach the different organs through the bloodstream. In terms of drugs or medicines, the metabolites bind to the tissue and cells around the hair roots. After some time, they reach and get trapped into the hair follicle and then the strands.

The Testing Process

Different laboratories might have different protocols, but generally, a trained collector will obtain 100 grams of hair, about 90 to 120 strands. They would collect from various areas to ensure there won’t be bald spots. If the sample is collected in your workplace, the collector places it in a piece of foil or envelope and then seals and labels it.

In the lab, the hair gets tested using a rapid screening procedure known as ELISA (Enzyme-Linked Immunoabsorbent Assay). For positive samples, they get re-tested using a tandem chromatography-mass spectrophotometry test to rule out possible false positives usually caused by prescription opioid painkillers.

Expected Results

There are three possible results, namely:

  • Negative: This means that no drug metabolites have been detected in the sample using the screening test, indicating two things. The person isn’t an illicit drug user or hasn’t engaged in illegal drug use in the past 90 days.
  • Positive: This result means that the sample tested positive for both screening and confirmatory tests for a specific illicit drug.
  • Inconclusive: This result would require the person to undergo another round of tests since the lab rejected the sample due to contamination or improper collection.

What Are The Hair Follicle Drug Test Detection Times?

The hair incorporated with drug metabolites will take about five to 10 days to reach the scalp surface. The hair’s average growth would be 0.5 inches or 1.3 centimeters per month from the scalp vertex or crown.

Since the required hair length for most testing laboratories is 1.5 inches or 3.9 centimeters, in terms of how long does marijuana stay in your hair follicles, that would be about 90 days or three months. Body hair, on the other hand, can help determine drug use up to one year. However, body hair follicle drug test detection times aren’t as well studied as head hair.

Hair vs. Urine vs. Saliva or Oral Fluid Testing

To further understand this newest and popular drug test, let’s compare its pros and cons with the pros and cons of urine and oral fluid or saliva drug tests.

Hair

Pros:

  • 90-day detection period
  • A high rate of positivity
  • Reveals regular and long-term drug use
  • Not easily tampered
  • Not affected by most factors
  • Perfect for return-of-duty and pre-employment screening

Cons:

  • Expensive
  • Long turnaround time
  • Takes a few days before drugs stay in the hair
  • Not federal testing approved
  • Can’t be used for post-accident detection situations

Urine

Pros:

  • Detects recent drug use (four hours to a week; 30 days for marijuana)
  • Reasonably priced
  • Proven track record
  • Federal testing approved (such as DOT)
  • Suitable for many purposes

Cons:

  • Easy sample adulteration
  • Doesn’t detect the frequency of drug use

Saliva or Oral Fluid

Pros:

  • Reasonably priced
  • Detects recent drug use (48 hours)
  • Difficult to cheat
  • Suitable for many purposes

Cons:

  • Not federal testing approved
  • Doesn’t detect the frequency of drug use

Which Employers Use Hair Drug Tests?

In terms of drug analysis using hair, there is really no specific list of industries recommended to use it. It solely depends on the employers’ preferences and needs. Meaning, the employer can choose between the three tests: urine, oral fluid, and hair. Thus, if you’re an employer, consider evaluating each test’s pros and cons to determine which one best meets your company’s needs.

When Do Employers Use Hair Drug Tests?

With that said, if you have trouble deciding, experts recommend considering the hair drug test in certain situations. One is for scheduled tests because the current employee, applicant, or returning staff knows that they’ll get tested.

Remember that THC and weed stay in your hair follicles for a long period, usually up to 90 days. Hence, it would be challenging for the person to beat the test if they’re a regular user.

How to Pass A Hair Drug Test: The Do’s and Don’ts

Much like any drug test, the best way to pass a hair drug test is to refrain from using illicit drugs, especially since it is quite challenging to beat. Still, there are suggested ways to do so.

How to Clear THC From Your Hair

Although not 100% foolproof, some people claim that cleansing or detoxifying the hair of drug metabolites can give you a chance of passing the test.

Hair Follicle Drug Testing Shampoo You Should Use

The process of hair detox would require particular types of shampoo. Here’s a table of some of the products you need to prepare:

Products Pros Cons
Zydot Ultra-Clean Set (Shampoo, Purifier, Conditioner)
  • Reasonably priced
  • Thoroughly cleans; even styling products
  • Detangles hair
  • Improves hair manageability and luster
  • Tames frizz
  • Reduces swelling and redness
  • Contains allergens
  • Non-vegan
  • Non-vegetarian
  • Requires washing with regular shampoo before use
Old Aloe Toxin Rid Shampoo
  • Most effective in removing toxins
  • Doesn’t irritate the scalp
  • Doesn’t strip hair moisture
  • Easy to use
  • Removes metals in the hair
  • Oldest detox shampoo
  • Pricey
  • Comes in a small pack
Nexxus Aloe Rid Original Formula
  • Cleanses hair and scalp thoroughly
  • Rejuvenates damaged hair
  • Anti-dandruff
  • Improves hair texture
  • Pricey

DIY Home Detox Remedies

Using the hair follicle drug testing shampoos above and other products, you can remove drug metabolites on your hair and scalp using the Macujo Method. It requires you to stop consuming weed at least ten days before the scheduled drug analysis and until the release of the official results.

The Macujo Method

The most widely-known hair detoxifying procedure is Macujo. There are two different types; the old and the new.

Old Macujo Steps

This method only helps you get rid of marijuana or THC. Here are the steps to follow:

  1. Damp your hair with warm water.
  2. Apply a small amount of apple cider vinegar to your scalp. Massage gently to distribute evenly.
  3. Apply a good amount of Vaseline around your forehead and ears to prevent any rash that may be caused by the next product you’ll use.
  4. Place a little amount of Clean & Clear Deep Cleansing Astringent in your palm and massage it on your scalp.
  5. Place a shower cap and let the products sit in your scalp and hair for 30 to 60 minutes.
  6. Rinse your hair with warm water.
  7. Wash your rinsed hair with Aloe Rid shampoo. Rinse with warm water. Repeat.
  8. Place a little amount of Tide Liquid Detergent on your palm and gently massage it on your hair and scalp. Make sure nothing gets in your eyes. Rinse with warm water.
  9. Place a little amount of Zydot on your palm and massage it on your hair and scalp. Rinse with warm water.
  10. You can repeat the whole process three to seven times.

New Macujo or Mike Macujo Steps

This method can help get rid of higher amounts of marijuana and other drugs. The steps you need to take are:

  1. Damp your hair with warm water and massage a little amount of the original Nexxus Aloe Rid Shampoo.
  2. Rinse thoroughly with warm water and towel dry your hair.
  3. Fill a large bowl with baking soda and add warm water little by little until it has a paste consistency. It shouldn’t have clumps.
  4. Massage your hair with the baking soda paste for about five to seven minutes.
  5. Rinse thoroughly with warm water and towel dry your hair.
  6. Apply a good amount of Vaseline around your forehead and ears to prevent any rash that may be caused by the next product you’ll use.
  7. Spray a fair amount of Clean and Clear Astringent over your head, ensuring the entire head gets saturated.
  8. Massage the product for five to seven minutes. Wipe any drips with a clean towel.
  9. Use a shower cap and let the astringent stay for 30 minutes.
  10. Dab a little amount of Tide Liquid Detergent and scrub it on your hair for three to seven minutes. Make sure it doesn’t form foams or suds.
  11. Rinse thoroughly with warm water.
  12. Apply a good amount of Nexxus Aloe Rid and rinse it with warm water.
  13. Spray and saturate your whole head with apple cider vinegar. Massage it into your hair and pat dry.
  14. Spray a good amount of Clean and Clear Astringent over your head, ensuring the entire head gets saturated.
  15. Massage the product for five to seven minutes. Wipe any drips with a clean towel.
  16. Use a shower cap and let the astringent stay for 30 minutes.
  17. Dab a little amount of Tide Liquid Detergent and scrub it on your hair for three to seven minutes. Make sure it doesn’t form foams or suds.
  18. Rinse thoroughly with warm water.
  19. Apply Nexxus Aloe Rid and massage it on your hair. Rinse well.

Repeat the procedure 10 to 18 times, on different days, if you’re a heavy marijuana user, and 10 to 20 times if you’re a heavy opiate user. For ecstasy, meth, and cocaine, you can repeat the test twice a day for 10 days.

Tricks That Won’t Help You Pass a Hair Follicle Drug Test

Definitely, there is no trick to pass a hair drug test in 24 hours (1 day), but people have tried to find ways to do so. Some of the most popular but ineffective ones are:

Shaving Your Head

Remember that body hair is also an acceptable sample for the test. Thus, shaving your head hair won’t work.

Hair Bleaching or Dying

Although bleaching can help remove drug metabolites, it won’t be enough to pass the test. Drying won’t only damage your hair but will also won’t remove any drug metabolites on your scalp and hair.

FAQs: Hair Drug Test Facts and Answers to Your Questions

1. Can the Hair Drug Test Identify the Specific Date of Drug Use?

The test can detect drug use of up to 90 days, but it won’t provide the specific date of drug use. That’s because the hair growth rate is different from one person to another.

2. Which Part of the Body Can Hair Be Collected?

As noted earlier, body hair is acceptable, so yes, you can still get tested even if you have little or no head hair. The hair can be collected from the legs, face, arms, and armpits and can be combined.

3. Can the Hair From the Comb or Brush Acceptable?

No, because there are protocols testers should strictly follow.

4. What if I have an Artificial Hairpiece?

Some people have used fake hairpieces to trick the test, so there are stricter protocols for the sample collection process. The collector will carefully identify whether or not you’re wearing a hairpiece and collect real hair. Or else, they’ll use body hair.

5. How Accurate Is Hair Drug Testing?

The accuracy of the test improved because of the improvement of standards, from sample collection to testing. The specific tests used to detect drugs in the hair have also improved, preventing false positives due to hemp and poppy seeds.

That said, some meds like opioid painkiller will show a positive test result, so make sure you inform your employer you’re taking the prescriptive drug. Better yet, show your doctor’s prescription.

How Can You Beat a Hair Follicle Drug Test: The Conclusion

A hair drug test is an accurate pre-employment and return-to-duty screening procedure that many employers prefer over the other tests. It can detect multiple illicit drugs and even some prescription meds. Since THC and weed stay in your hair follicles for a long time, the test can detect long-term drug use even if the employee stopped using for a few days prior to the test.

That said, you can use detox shampoo to pass a hair follicle drug test in combination with other products. Just make sure you follow the right procedures and abstain from using drugs for a few days.