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6-Month Hair Drug Test: Which Test Do I Need | AMH Nationwide

6-Month Hair Drug Test Which Test Provides Long-Term Drug Use Insights

The 6-month hair drug test which test detects drug use over approximately six months by analyzing hair samples. It is ideal for employers, courts, probation officers, and individuals needing long-term drug use verification. This test is more comprehensive than urine tests for extended detection. Call (877) 731-6362.

OVERVIEW

What is the 6-month hair drug test which test?

The 6-month hair drug test which test analyzes a 1.5-inch hair sample to detect drug metabolites deposited over roughly six months. Hair grows about half an inch per month, so the sample length corresponds to the detection window. This test identifies substances like marijuana, cocaine, opiates, amphetamines, and PCP.

AMH Nationwide routes collections through five national lab networks: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, and ExperTox. A certified Medical Review Officer reviews every non-negative result as standard procedure.

WHEN TO CHOOSE

When is the 6-month hair drug test which test the right choice?

The 6-month hair drug test which test is best when long-term drug use history is required rather than recent use. It suits situations where a broader detection window is critical, such as:

– Employer pre-employment or random testing when extended drug use patterns matter.

– Court-ordered testing to verify compliance over months, not days.

Probation monitoring requiring evidence of sustained abstinence or use.

– Personal testing for comprehensive drug use history.

Long detection window: Approximately six months
Non-DOT safety-sensitive testing: Hair testing is accepted for non-DOT roles
Sample type: Hair, less invasive than urine or blood
Detection: Multiple drug classes with consistent results over time
COMPARISON

How does the 6-month hair drug test which test compare to other drug tests?

Compared to urine and oral fluid tests, the 6-month hair drug test which test offers a significantly longer detection window but does not detect very recent drug use (within 7-10 days). It is not DOT-compliant for safety-sensitive roles, which require federally certified urine testing under 49 CFR Part 40.

The table below summarizes key differences.

Test TypeDetection Window
6-Month Hair Drug TestUp to 6 months
Urine Drug Test (DOT)1-4 days, federally certified
Oral Fluid Drug Test1-3 days
Blood Drug TestHours to 2 days

Employers and agencies needing DOT-compliant testing must use the urine protocol. Hair testing is suitable for non-DOT situations requiring extended detection.

ORDERING

How do I get a 6-month hair drug test which test?

AMH Nationwide provides lab orders and directs clients to collection sites nationwide. There is no online ordering available. To initiate testing, call (877) 731-6362 to speak with a representative who will assist with the process.

Need to verify long-term drug use?

Contact AMH Nationwide to arrange a 6-month hair drug test which test. Call (877) 731-6362 for assistance.

RESULTS

What happens after the 6-month hair drug test which test is collected?

Samples are analyzed by one of five national labs: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox. Non-negative results undergo review by a certified Medical Review Officer (MRO) to confirm accuracy and provide interpretation.

Final results typically include a clear positive or negative report indicating drug exposure within the six-month window.

PRICING

How much does the 6-month hair drug test which test cost?

Pricing varies depending on the specific drug panel selected and detection window requirements. For a precise quote, call (877) 731-6362. AMH Nationwide can provide detailed pricing based on your testing needs.

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AMH Nationwide Customer Service

AMH Nationwide is BBB A+ accredited and routes every order through Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox, all of which use multiple lab certification agencies and standards such as SAMHSA-aligned laboratory protocols, the ANSI National Accreditation Board for forensic testing and calibration, the College of American Pathologists (CAP), and Clinical Laboratory Improvement Amendments (CLIA). Every non-negative screen is reviewed by a certified Medical Review Officer as part of standard processing before a result is released, and chain-of-custody documentation is maintained on every collection. This page does not constitute medical or legal advice.

Last updated: July 2026
Frequently Asked Questions

Common Questions

No, the 6-month hair drug test detects drug use from approximately 7 days ago up to six months. It cannot reliably detect use within the past week.

No, DOT-regulated positions require federally certified urine testing under 49 CFR Part 40. Hair testing is only for non-DOT roles.

This test can detect marijuana, cocaine, opiates, amphetamines, PCP, and other drug metabolites depending on the panel selected.

A small sample of hair about 1.5 inches long is cut close to the scalp, usually from the crown of the head, to represent approximately six months of hair growth.

Every non-negative result is reviewed by a certified Medical Review Officer who confirms findings and provides medical interpretation.

No, AMH Nationwide does not offer online ordering. Call (877) 731-6362 to obtain a lab order and schedule collection.

Ready to get started?

AMH Nationwide provides the lab order and arranges collection nationwide. Every non-negative result reviewed by a certified Medical Review Officer. Call (877) 731-6362 or contact us.

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