Tag: hair analysis
Ask the experts: Hair testing vs. hair follicle testing
What is the difference between hair drug testing and hair follicle drug testing? We asked a Quest expert to explain.
Ask the experts: Effects of hair treatments on drug test results
Our scientific expert, Dr. Barry Sample, answers the question: Can products and treatments affect hair drug test results?
Common questions about hair testing
An expert from Quest Diagnostics answers some of the most common questions about hair drug testing.
Quest comments for hair specimen mandatory guidelines
HHS published an RFI seeking comments for federally-mandated hair drug testing. Here are our comments in response to the questions posed by HHS.
Request for hair drug testing information
The HHS published an RFI seeking comments on regulatory policies and standards regarding the use of hair specimen for federally-mandated drug testing.
Detect repetitive drug use with hair testing
Hair testing is a method many employers rely on to help identify periodic and habitual drug use by applicants and employees.
Hair drug testing resources
Quest Diagnostics offers additional resources about hair testing for illicit drug use at HairTesting.com.