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Hair Follicle & Nail Testing

Hair Follicle Drug Testing is one of the only ways to get an in depth assessment of drug usage in 3 month increments; 90 days is the most common, however it can go back a year depending on the length of hair. This is a great test for an employer or parent.  Fingernails and toenails may also be used for the test.


When compared with urine specimen testing, hair follicle testing provides up to 2.5 times the number of positives and a longer detection window. Hair follicle drug testing can test for the following classes of drugs:

   Note: EtG Testing is only up to a 90 day test and can be performed in hair or fingernails (excludes toenails)


​  List of Drug Testing Panels


Hair Follicle & Nail Drug Testing has some distinct advantages over saliva, urine, and blood-based tests. Simple specimen collection and highly accurate results that meet the same reference standards as urine testing. In addition, there are no known methods for sample adulteration (washing will not dilute the sample). Because specimen collection can be directly observed, the risk of adulteration is even further reduced.



  • Sample collection is gender neutral, less intrusive, and observed.

  • Testing detects drug use over a far wider window of time - 90+ days.

  • Hair follicle testing is virtually tamper-proof.



These factors have contributed to hair follicle testing becoming the gold standard of drug testing, leading to a growing trend among law enforcement agencies and major corporations to choose this technique over other methods.



Why Use Our Lab?


  • Confirmation of positive results

    • Gas Chromatography/Mass Spectrometry (GC/MS), the most accurate method available, is used to confirm all positives.

  • Fast turnaround time

    • Negative results are generally reported within 24-48 hours of receipt at the laboratory.

  • Legally defensible results

    • Our lab follows stringent chain-of-custody guidelines mandated by the College of America Pathologists (CAP).  Hair testing is also forensically defensible.

  • Client Confidentiality

    • Only authorized laboratory personnel have access to donor information. Donor information is kept private and secure.​




ChildGuard -Specialized Testing for Children

We offer testing for children who may be exposed to drugs via 2nd Hand Smoke or Accidental Ingestion.


If you suspect a child may be living in a drug environment, we can help.


Call for More Information


(909) 991-2275 

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