Forensic Drug Testing Lab
Hair Drug Testing
Recently, hair testing has come to be seen as a powerful tool for the detection of drug and alcohol abuse. Hair provides a long-term history of drug and alcohol abuse by trapping biomarkers in the fibers of the growing hair strand. When collected close to the scalp, hair can provide up to a 3 month history of alcohol and drug abuse. Drug and alcohol biomarkers can appear in scalp hair 1-7 days after the last use. Hair offers a sample that is simple to collect, somewhat difficult to adulterate, and easy to ship. A 1.5 inch sample of about 200 strands of hair (about the size of a #2 pencil) closest to the scalp will give 100 mg of hair, the ideal sample for screening and confirmation. We recommend weighing the specimen on a jeweler's scale. If scalp hair is not available, an equal amount of body hair may be collected.
Click here to view our hair collection instruction slides.
Click here to download the fingernail and hair drug panels.
- 17 Panel
- 16 Panel
- 15 Panel
- 14 Panel
- 12 Panel
- 10 Panel
*Click the green and white plus sign beside each drug class to view the substances within each class.
By Phone: 1.800.235.2367
Business Hours (CST)
Monday 6am - 8pm
Tuesday 6am - 8pm
Wednesday 6am - 8pm
Thursday 6am - 8pm
Friday 6am - 8pm
Panel Name: HairTesting
Panel Description: Hair Testing Drug Panel
Collection Container: Foil in Secure Envelope
Sample Amount: 100 mg = 200 strands @ 1.5 inches (We recommend weighing the specimen on a jeweler's scale.)
Storage Conditions: Room Temperature
Transport Conditions: Ambient
Method: Initial screening test with confirmation of presumptive positives
Turn-Around Time: 1 day for negatives / 2-3 days for positives
- White Papers
Can a hair test be manipulated by the donor?
Can a hair test be used to prove that a previously taken urine test was inaccurate?
Can a hair test determine how much or how often someone is using a drug?
Can someone test positive in hair because of passive or environmental exposure?
Does race make a difference in hair testing results?
How can positive drug or alcohol test results be interpreted? If the quantity of drug or alcohol metabolite detected is high could that be an indication that the donor (1) was consuming a large amount, (2) was using recently, or (3) was using frequently?
How long can drugs be detected in body hair?
How long can drugs be detected in head hair?
What does a positive hair test result mean?
Why do we test for EtG in hair and not FAEE?
Why was one matrix positive and another negative on the same donor?
Annotated Bibliography for EtG in hair 20-Mar-2014