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Hair Drug Testing

Recently, hair testing has come to be seen as a powerful tool for the detection of drug and alcohol use. Hair provides a long-term history of drug and alcohol use by trapping biomarkers in the fibers of the growing hair strand. When collected close to the scalp, hair can provide up to approximately a 3-month history of alcohol and drug use. Hair offers a simple sample to collect, somewhat difficult to adulterate, and easy to ship.

Hair anatomy with sweat and body oils

A 1.5-inch sample of about 200 strands of hair (about the size of a #2 pencil) closest to the scalp will give 100mg of hair, the ideal sample for screening and confirmation. For EtG, add-ons, and/or tests above 10 panels, 150mg of the specimen is recommended. We recommend weighing the specimen on a jeweler’s scale. If scalp hair is unavailable, an equal amount of body hair may be collected. When referring to head hair, we are referring to scalp hair only. Body hair refers to all other hair types (facial, axillary, etc.).


D/L Methamphetamine Isomer Testing

D/L Methamphetamine Isomer Testing is available upon request for specimens that test positive for methamphetamine.

If you are interested in lower-panel options, please reach out to us here!


Drug Panels

  • 19 Panel
  • 17 Panel
  • 16 Panel
  • 14 Panel
amphetamine, methamphetamine, MDA, MDMA, MDEA
carboxy-Δ9-THC, native-THC (environmental exposure/special request), cannabidiol
benzoylecgonine, cocaethylene, cocaine, norcocaine
6-MAM, codeine, hydrocodone, hydromorphone, morphine, norhydrocodone
phencyclindine (PCP)
alprazolam, diazepam, midazolam, nordiazepam, oxazepam, temazepam
amobarbital, butalbital, pentobarbital, phenobarbital, secobarbital
methadone, EDDP
propoxyphene, norpropoxyphene
oxycodone, oxymorphone, noroxycodone
fentanyl, norfentanyl, alfentanil, acetyl fentanyl, acety norfentanyl, sufentanil, norsufentanil
norsufentanil, sufentanil
ketamine, norketamine
buprenorphine, norbuprenorphine
zolpidem (e.g. Ambien®)
mitragynine, 7-hydroxymitragynine
gabapentin (GABA)
*Click the green and white plus sign beside each drug class to view the substances within each class.
Add-Ons Available
High-Potency Opioids (HPOs)
6-β-Naltrexol (naltrexone metabolite), butorphanol (e.g. Stadol®), nalbuphine (e.g. Nubain®), naloxone (e.g. Narcan®), naltrexone (e.g. Revia®)
EtG (Direct Ethanol Biomarker)
ethyl glucuronide (EtG)
Propofol Glucuronide
propofol glucuronide (e.g. Diprivan®)
mitragynine, 7-hydroxymitragynine
gabapentin (GABA)
cotinine, nicotine


Collection Instructions
Client Services

By Phone: 1.800.235.2367

Business Hours (CST)

Monday 7am-7pm
Tuesday 7am-7pm
Wednesday 7am-7pm
Thursday 7am-7pm
Friday 7am-7pm
Saturday 8am-5pm

Contact Client Services

Testing Details

Panel Name: Hair Testing

Panel Description: Hair Testing Drug Panel

Type: Profile

Matrix: Hair

Collection Container: Foil in Secure Envelope

Sample Amount: 100 mg = 200 strands @ 1.5 inches for panels up to  9-panel, 150mg = 300 strands @ 1.5 inches for testing  10-panel and above or for any panel plus an add-on or ETG.
(We recommend weighing the specimen on a jeweler’s scale.)

Storage Conditions: Room Temperature

Transport Conditions: Ambient

Method: Initial screen and confirmation

Turnaround Time: Generally, the standard turnaround time for reporting negative screening test results is the next business day, with an additional 1-2 business days for specimens that require confirmatory testing. Turnaround time begins from receipt of the valid specimen –accompanied by a properly documented valid order– into the laboratory. Some tests require additional time to process and will fall outside the standard turnaround time window.

Contact USDTL


Client Services

By Phone: 1.800.235.2367
Business Hours (CST)
Monday....................7am-7pm Tuesday....................7am-7pm Wednesday.............7am-7pm Thursday..................7am-7pm Friday........................7am-7pm Saturday...................8am-5pm

Contact Client Services

Newsletters, Posters, and Catalogs

Our print materials will keep you up to date on the latest news in drug and alcohol testing.

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Request Your Collection Supplies

For your convenience, USDTL provides test collection supplies at no additional charge.

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