--- title: "Hair Follicle Drug Test: Which Test Do I Need | AMH Nationwide" description: "Hair follicle drug test which test is best for long-term drug use detection. Compare options for employers, courts, and personal use. Call (877) 731-6362." author: "AMH Nationwide" date: "2026-08-27" tags: ["hair follicle drug test which test"] canonical: "https://amhnationwide.com/hair-follicle-drug-test-which-test/" last_updated: "2026-08-27" --- # Hair Follicle Drug Test: Which Test Do I Need | AMH Nationwide **By AMH Nationwide** | August 27, 2026 Hair follicle drug test which test is best for long-term drug use detection. Compare options for employers, courts, and personal use. Call (877) 731-6362. --- Hair follicle drug test which test to choose depends on the detection window and testing purpose. This test detects drug use over 90 days, making it ideal for employers, courts, probation, and personal monitoring. It uses hair samples processed through national labs with MRO review. Call (877) 731-6362. OVERVIEW ## What is a hair follicle drug test and when is it used? A hair follicle drug test analyzes a small hair sample to detect drug metabolites, providing a [detection window](https://amhnationwide.com/hair-follicle-drug-test-detection-window/) of up to 90 days. It is used when long-term drug use history is needed rather than recent use. Employers, courts, [probation](https://amhnationwide.com/hair-follicle-drug-test-probation/) officers, and individuals use this test to verify extended abstinence or identify repeated drug use. AMH Nationwide routes collections through five national labs, including [Quest Diagnostics](https://www.questdiagnostics.com/) and [LabCorp](https://www.labcorp.com/). EMPLOYERS ## When should employers choose a hair follicle drug test over other tests? Employers select a hair follicle drug test when they require drug use history over weeks to months, such as for [pre-employment](https://amhnationwide.com/pre-employment-hair-testing/) screening or random checks where recent use detection is insufficient. This test is preferred for safety-sensitive positions not regulated by DOT, as DOT requires [urine](https://amhnationwide.com/urine-drug-testing/) testing with strict protocols. Hair testing provides a longer detection window but does not detect very recent use. Long detection window: up to 90 days Non-invasive collection Not suitable for DOT-regulated roles Detects chronic or repeated drug use LEGAL & COURT ## Is a hair follicle drug test appropriate for court or probation settings? Hair follicle drug tests are often used in court and probation to monitor long-term compliance with drug-free mandates. It allows authorities to verify abstinence over an extended period. Because of its long detection window, it is useful when short-term urine or oral fluid tests do not provide sufficient history. However, courts may still require urine tests to detect recent use. Verifies up to 90 days of drug use history Common in probation and [child custody](https://amhnationwide.com/hair-follicle-drug-test-child-custody/) cases Results reviewed by certified Medical Review Officer Not suitable for detecting very recent drug use PERSONAL USE ## When is a hair follicle drug test the right choice for personal drug monitoring? Individuals may select hair follicle drug testing to monitor long-term drug abstinence or to verify a drug-free lifestyle over months. It provides more comprehensive information than urine or saliva tests. Personal users should understand that hair testing cannot detect drug use within the past 7 days and that hair treatments may affect results. AMH directs clients to national labs for professional collection. ## Need Help Choosing the Right Drug Test? Call (877) 731-6362 to speak with an expert who can guide you in selecting the best hair follicle drug test or alternative for your specific situation. [Call (877) 731-6362](tel:+18777316362)[Contact Us](https://amhnationwide.com/contact-us/) COMPARISON ## How does the hair follicle drug test compare to urine, oral fluid, and nail tests? | Test Type | Detection Window | | --- | --- | | Hair Follicle | Up to 90 days | | Urine | 1-4 days (varies by drug) | | Oral Fluid | 12-48 hours | | Nail | Up to 6 months but less common | Hair follicle testing offers the longest standard detection window among common tests. Urine tests detect recent use and are required for DOT safety-sensitive roles. Oral fluid tests are for very recent use. Nail testing has a longer window but is less widely accepted. PROCESS ## What is the process for hair follicle drug testing through AMH Nationwide? AMH Nationwide provides the lab order and directs the requester to a collection site affiliated with one of five national lab networks: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox. Collections are professionally done with chain of custody protocols. Every non-negative result undergoes review by a certified Medical Review Officer to ensure accuracy and reliability. There is no online ordering. To initiate testing, call (877) 731-6362 to discuss your needs and receive guidance on the appropriate test. 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 Hair follicle drug tests commonly detect substances such as marijuana, cocaine, opiates, amphetamines, methamphetamine, PCP, and synthetic cannabinoids. The exact panel varies by test and should be confirmed when ordering. Results typically take 3 to 5 business days after sample collection. All non-negative results are reviewed by a Medical Review Officer before final reporting. Certain hair treatments like bleaching or dyeing may reduce drug metabolite levels in hair, potentially affecting test sensitivity. However, testing labs have methods to detect tampering or adulteration. No. DOT-regulated safety-sensitive testing requires urine testing under federally certified protocols. Hair follicle testing is not approved for DOT compliance. Cost varies depending on the drug panel and detection window. Contact AMH Nationwide at (877) 731-6362 for a quote tailored to your testing needs. No. AMH Nationwide requires professional collection at authorized sites to maintain chain of custody and sample integrity for legal and employment purposes. 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/hair-follicle-drug-test-which-test/