--- title: "12-Panel Hair Follicle Drug Test: What It Screens For | AMH Nationwide" description: "Learn what the 12-panel hair follicle drug test screens for with detailed substance coverage. Call (877) 731-6362 for lab-directed collection info." author: "AMH Nationwide" date: "2026-08-27" tags: ["12-panel hair follicle drug test what it screens"] canonical: "https://amhnationwide.com/12-panel-hair-follicle-drug-test-what-it-screens/" last_updated: "2026-08-27" --- # 12-Panel Hair Follicle Drug Test: What It Screens For | AMH Nationwide **By AMH Nationwide** | August 27, 2026 Learn what the 12-panel hair follicle drug test screens for with detailed substance coverage. Call (877) 731-6362 for lab-directed collection info. --- The 12-panel hair follicle drug test what it screens includes a specific set of substances commonly tested for to detect drug use over a 90-day period. This test covers 12 drug classes, offering a broad detection range. Collection is directed through national labs. Call (877) 731-6362 to schedule your test. OVERVIEW ## What substances does the 12-panel hair follicle drug test screen for? The 12-panel hair follicle drug test screens for 12 specific drug classes by analyzing hair samples, which reveal drug use up to approximately 90 days prior to collection. It detects substances that have been incorporated into the hair shaft after drug consumption. Amphetamines (including methamphetamine) Cocaine Marijuana (THC) Opiates (codeine, morphine, heroin) Phencyclidine (PCP) Benzodiazepines Barbiturates Methadone Propoxyphene Ecstasy (MDMA) Oxycodone Hydrocodone PANEL DETAILS ## How does the 12-panel hair follicle drug test panel size affect detection? The panel size determines which drug classes are included in the test and how comprehensive the screening is. A 12-panel test covers a wider range of substances than smaller panels, improving the ability to detect various drug use patterns. Smaller panels, such as 5- or 7-panel tests, screen fewer substances and may miss certain drugs covered by the 12-panel test. Larger panels offer broader detection but vary by provider. | Panel Size | Drugs Screened | | --- | --- | | 5-Panel | Amphetamines, Cocaine, Marijuana, Opiates, PCP | | 7-Panel | Adds Benzodiazepines, Barbiturates | | 12-Panel | Includes Methadone, Propoxyphene, Ecstasy, Oxycodone, Hydrocodone | Choosing a 12-panel test ensures detection of prescription opioids and other substances not always included in smaller panels. [DETECTION WINDOW](https://amhnationwide.com/hair-follicle-drug-test-detection-window/) ## What is the detection window for substances in a 12-panel hair follicle drug test? The 12-panel hair follicle drug test typically detects drug use within approximately 90 days prior to testing. Hair grows about 0.5 inches per month, and laboratories usually analyze the most recent 1.5 inches of hair to cover this period. This long detection window allows the test to identify drug use that [urine](https://amhnationwide.com/urine-drug-testing/) or saliva tests might not detect due to their shorter detection periods. WHO ORDERS ## Who typically orders a 12-panel hair follicle drug test and why? Employers, legal entities, and rehabilitation programs often order the 12-panel hair follicle drug test when a broad and historical overview of drug use is required. It is preferred for non-DOT safety-sensitive roles because hair testing is not accepted under DOT regulations. This test is used when long-term drug use history is more relevant than recent use, such as in [pre-employment](https://amhnationwide.com/pre-employment-hair-testing/) screening or compliance monitoring. ## Schedule Your 12-Panel Hair Follicle Drug Test To arrange a 12-panel hair follicle drug test with comprehensive substance screening, call (877) 731-6362 today. [Call (877) 731-6362](tel:+18777316362)[Contact Us](https://amhnationwide.com/contact-us/) LAB PROCESS ## How is the 12-panel hair follicle drug test processed through national labs? AMH Nationwide directs the requester to a collection site where the hair sample is collected and sent to one of five national lab networks: [Quest Diagnostics](https://www.questdiagnostics.com/), [LabCorp](https://www.labcorp.com/), Omega Labs, United States Drug Testing Labs, or ExperTox. Each non-negative screen is reviewed by a certified Medical Review Officer (MRO) to ensure accuracy and validity as part of standard processing. TEST ORDERING ## How do I arrange a 12-panel hair follicle drug test? AMH Nationwide provides the lab order and directs you to a nearby collection site. There is no online ordering available for this test. To arrange testing, call (877) 731-6362 and speak with a representative who will assist with scheduling and answer any questions. 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 Yes, the 12-panel hair follicle drug test includes detection of prescription opioids such as oxycodone, hydrocodone, methadone, and propoxyphene, as well as benzodiazepines and barbiturates. This test can detect drug use approximately 90 days prior to sample collection by analyzing hair growth that incorporates drug metabolites. No, DOT regulations require urine testing under [49 CFR Part 40](https://www.transportation.gov/odapc/part40). Hair follicle testing is used for non-DOT safety-sensitive roles. All non-negative results are reviewed by a certified Medical Review Officer who confirms the findings and may contact the tested individual for verification. Certain hair treatments like bleaching or dyeing may reduce drug concentration but do not eliminate the ability of the test to detect drug use. After calling (877) 731-6362, AMH Nationwide will provide you with the location of a nearby collection site affiliated with one of the five national lab networks. 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/12-panel-hair-follicle-drug-test-what-it-screens/