Hair testing analyzes a hair sample for parent drugs and their metabolites. A hair specimen, collected from a donor's head or body, is sent to the laboratory and is screened for illicit substances
Hair color is determined by the amount of melanin in the hair. It has been shown experimentally, through actual hair samples, as well as determined in court that hair color has no significant impact on results.
Does hair color effect results?
Our preferred lab can test for cocaine, marijuana, opiates (codeine, morphine & 6-acetylmorphine,), amphetamines (amphetamine, methamphetamine, MDMA, MDA), and phencyclidine (PCP). The extended opiates panel adds oxycodone, oxymorphone, hydrocodone, and hydromorphone.
What drugs can we test for with hair?
Our clients regularly report finding five times as many users compared to laboratory-based urine testing programs.
How effective is hair testing?
The typical length of head hair tested is
1 1/2 inches from the root end. Since the
average growth rate of human head hair
is approximately 1/2 inch 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.
What time period does hair testing cover?
It takes approximately 5-10 days from the time of drug use for the hair containing drug to grow above the scalp where it can be collected.
How soon after use can a drug be detected in hair?
Body hair can be used for testing. However, while body hair is generally acknowledged as representing a more distant time frame than head hair, the approximate time period cannot be identified due to the high variability of growth rates.
Does body hair give the same
type of results as head hair?