--- title: "6-Month Hair Drug Test: Which Test Do I Need | AMH Nationwide" description: "The 6-month hair drug test which test offers reliable long-term drug detection. Learn when to choose it over other tests. Call (877) 731-6362 for info." author: "AMH Nationwide" date: "2026-08-27" tags: ["6-month hair drug test which test"] canonical: "https://amhnationwide.com/6-month-hair-drug-test-which-test/" last_updated: "2026-08-27" --- # 6-Month Hair Drug Test: Which Test Do I Need | AMH Nationwide **By AMH Nationwide** | August 27, 2026 The 6-month hair drug test which test offers reliable long-term drug detection. Learn when to choose it over other tests. Call (877) 731-6362 for info. --- 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](https://amhnationwide.com/hair-follicle-drug-test-detection-window/). This test identifies substances like marijuana, cocaine, opiates, amphetamines, and PCP. AMH Nationwide routes collections through five national lab networks: [Quest Diagnostics](https://www.questdiagnostics.com/), [LabCorp](https://www.labcorp.com/), 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](https://amhnationwide.com/pre-employment-hair-testing/) or random testing when extended drug use patterns matter. – Court-ordered testing to verify compliance over months, not days. – [Probation](https://amhnationwide.com/hair-follicle-drug-test-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](https://amhnationwide.com/urine-drug-testing/) 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](https://www.transportation.gov/odapc/part40). The table below summarizes key differences. | Test Type | Detection Window | | --- | --- | | 6-Month Hair Drug Test | Up to 6 months | | Urine Drug Test (DOT) | 1-4 days, federally certified | | Oral Fluid Drug Test | 1-3 days | | Blood Drug Test | Hours 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. [Call (877) 731-6362](tel:+18777316362)[Contact Us](https://amhnationwide.com/contact-us/) 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. AMH Reviewed & Maintained By 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](https://www.samhsa.gov/workplace/drug-testing)-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 You May Also Need [Nail Drug TestingNo head or body hair available? A 5-panel fingernail test covers a similar look-back window.Learn more →](https://amhnationwide.com/5-panel-fingernail-drug-test/)[ChildGuard: Environmental ExposureConcerned about a child or loved one? ChildGuard screens for exposure to drugs in their environment.Learn more →](https://amhnationwide.com/5-panel-hair-drug-test-environmental-exposure-childguard/)[Shorten the Detection WindowShortened options like 30 and 60 day hair panels are also available, useful when a urine test’s 1-3 day window is too short.Learn more →](https://amhnationwide.com/30-day-hair-drug-test/)[Hair ETG Alcohol TestAlso need alcohol testing? The hair ETG test screens for alcohol use, and can be added to the same collection.Learn more →](https://amhnationwide.com/etg-and-peth/) 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. Sources • [SAMHSA – Mandatory Guidelines for Federal Workplace Drug Testing Programs](https://www.samhsa.gov/workplace/drug-testing) • [U.S. DOT – 49 CFR Part 40 – Procedures for Transportation Workplace Drug and Alcohol Testing Programs](https://www.transportation.gov/odapc/part40) • [CDC – National Center for Health Statistics – Drug Use FastStats](https://www.cdc.gov/nchs/fastats/drug-use.htm) • [Quest Diagnostics – Employer Solutions, Hair Testing Methodology](https://www.questdiagnostics.com/) • [LabCorp – Occupational Testing Services](https://www.labcorp.com/) ## 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. [Call (877) 731-6362](tel:+18777316362)[Contact Us](https://amhnationwide.com/contact-us/) --- **Need a drug, alcohol, HIV or STD test?** AMH Nationwide is a national lab testing agency operating since 2004, with more than 20,000 collection sites across the United States. Hair, urine, fingernail and blood testing, panels from 5 through 19, for individuals and employers. - Call: (877) 731-6377 - Find a collection site: https://amhnationwide.com/locations/ - Full page: https://amhnationwide.com/6-month-hair-drug-test-which-test/