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12 Panel Hair Drug Screen

A 12 Panel Hair Drug Test uses a hair sample to screen for twelve drug classes, including amphetamines, cocaine, opiates, THC, and benzodiazepines. Hair testing reflects a longer window of exposure than urine for many substances.

Order 12 Panel Drug Test (Drugs of Abuse Testing), Hair

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Order 12 Panel Drug Test (Drugs of Abuse Testing), Hair
Typical turnaround
1-3 business days
Starting price
From $379
Results
Confidential, online

Quick answer

The 12 Panel Hair Drug Test is a broad screen that looks for twelve classes of drugs in a small hair sample. Hair testing can reflect a longer period of exposure than urine or blood, which is why it is used in some workplace, legal, and personal testing situations. Collection is quick and does not require a urine sample.

What this test measures

Hair testing works differently from urine or blood screening. As hair grows, substances and their metabolites can become incorporated into the hair shaft, so a sample can reflect a longer window of exposure. Laboratories typically analyze the segment of hair closest to the scalp, which represents roughly the most recent three months of growth.

The collection is simple and non-invasive. A trained collector cuts a small amount of hair close to the scalp, usually from the back of the head, and sends it to the laboratory. The panel screens for twelve drug classes, including amphetamines, barbiturates, benzodiazepines, cocaine, MDMA, methadone, methaqualone, opiates, PCP, propoxyphene, THC, and 6-acetylmorphine.

Hair testing may be requested when a longer detection window is useful, such as in some pre-employment programs, legal matters, or personal checks. Results depend on laboratory methods and cutoffs, and they should be interpreted with a qualified healthcare provider. Hair treatments and environmental exposure are among the factors that laboratories consider during analysis.

  • Amphetamines
  • Barbiturates
  • Benzodiazepines
  • Cocaine metabolite
  • MDMA (ecstasy)
  • Methadone
  • Methaqualone
  • Opiates
  • Phencyclidine (PCP)
  • Propoxyphene
  • Tetrahydrocannabinol (THC)
  • 6-Acetylmorphine (heroin metabolite)

Why people order this test

  • Longer detection window than urine for many substances
  • Single non-invasive collection that is difficult to substitute
  • Used in some workplace and pre-employment screening programs
  • Requested in legal and court-related matters
  • Personal testing for a broader look at exposure over time
  • Follow-up when a longer window of detection is needed
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How to prepare

No fasting or special timing is required. Follow the collection instructions from the laboratory, which may include guidance about recent hair treatments. The collector usually takes a small sample from the scalp area.

Understanding your results

Results are usually reported within one to three business days after the laboratory receives the sample. The report lists each drug class screened and whether it was detected at or above the laboratory cutoff. A qualified healthcare provider can help interpret the findings.

12 Panel Hair Drug Screen by state

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Frequently Asked Questions

How far back can a hair drug test detect use?

Hair analysis generally reflects exposure over roughly the past three months, depending on hair length and growth rate. The laboratory typically tests the segment closest to the scalp.

Does hair testing require a urine sample?

No. The sample is hair, so no urine collection is needed.

Can hair treatments affect the result?

Chemical treatments such as bleaching or perming can influence some analytes, so laboratories collect information about recent treatments and interpret results accordingly.

What drugs does the 12 panel hair test screen for?

It screens for twelve classes: amphetamines, barbiturates, benzodiazepines, cocaine, MDMA, methadone, methaqualone, opiates, PCP, propoxyphene, THC, and the heroin metabolite 6-acetylmorphine.

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Medical disclaimer. The information on LabOrdering.com is educational only and is not medical advice, diagnosis, or treatment. Reference ranges and clinical guidance vary between laboratories. Always consult a qualified healthcare provider about your own results and care.