US Drug Test Centers Blog/News

Hair Drug Testing at US Drug Test Centers

Posted: Apr 27 2015

By: Jane Schwab

If you need a hair drug test, US Drug Test Centers has more than 20,000 facilities nationwide to offer hair testing with immediate service. Call today to order a hair drug test at the location closest to you.

You should have head hair to be able to have a hair drug test performed. If you do not have head hair, many of our facilities will take body hair from the arms or legs. Our hair testing is offered through Quest Diagnostics and LabCorp. Quest facilities will cut head hair or body hair. LabCorp facilities will only cut head hair.

Hair testing for drugs is the only drug testing method available that provides up to a 90-day lookback period. Hair testing provides a longer detection window and can lead to a higher positivity rate, compared to urinalysis, making it an excellent deterrent of drug use. The typical length of head hair tested is 1½ inches from the root end. Since the average growth rate of human head hair is approximately ½ inch (1.3 cm) per month, a hair analysis covers an approximate 90-day time frame. This time frame is an approximation only since an individual's actual hair growth rate may vary from the average.

Hair testing is commonly ordered for court-ordered drug testing and child custody cases. US Drug Test Centers works with many family attorneys to help their clients with hair drug testing. Our hair testing procedures and results have successfully withstood legal challenges in workplace testing, military proceedings, and other civil jurisdictions.

Our hair tests screen for a wide variety of drugs, including expanded opiates and ecstasy, creating a broad and robust drug testing menu. Our menu of hair testing options is listed below.

womans brown hairIt's very hard to cheat on a hair drug test. Every collection is observed. All hair samples are washed prior to screening and confirmation analysis to remove external contamination. The laboratory is actually testing for drug metabolites that are embedded into the hair shaft. We have not found any adulterants that can beat the test at this time. Moreover, the risk is minimized because every collection is directly observed.

The testing process for hair produces accurate hair drug test results. Hair samples are first screened in our laboratory using Enzyme-Linked Immunosorbent Assay (ELISA) methodology, which has been proven reliable for routine drug testing. Any samples that test presumptively positive in the screening process are then subjected to gas chromatography/mass spectrometry (GC/MS), gas chromatography/tandem mass spectrometry (GC/MS/MS), or liquid chromatography/tandem mass spectrometry (LC/MS/MS) confirmation testing.

Results for hair testing will take at least two business days. In some cases, the testing might take a few extra days. Our hair test panels include:

Hair drug test 5 pane — Screens for amphetamines (methamphetamine, ecstasy, MDMA, and MDA), cocaine, opiates (codeine, morphine, and heroin), PCP, marijuana.

Hair drug test 5 panel plus expanded opiates and oxy — Screens for amphetamines, cocaine, PCP, marijuana, and opiates (codeine, morphine, heroin, hydrocodone, hydromorphone, oxycodone, oxymorphone).

Hair drug test 9 panel — Screens for cocaine, marijuana, phencyclidine (PCP), amphetamines, benzodiazepines, barbiturates, methadone, propoxyphene, and opiates (including codeine, morphine, heroin, hydrocodone, hydromorphone, oxycodone, oxymorphone).

If you need to set up a time to go for your hair test, call US Drug Test Centers today for fast, immediate service.


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