Tag: hair follicle drug test facts

Hair testing

Common questions about hair testing

March 9, 2021

An expert from Quest Diagnostics answers some of the most common questions about hair drug testing.

Hair testing

Ask the Experts: Hair drug test specimens

October 17, 2017

Our experts explain how a hair drug test specimen can be taken from other parts of the body if someone is lacking hair or is bald.

Hair testing

Quest comments for hair specimen mandatory guidelines

August 5, 2015

HHS published an RFI seeking comments for federally-mandated hair drug testing. Here are our comments in response to the questions posed by HHS.

Hair testing

Hair drug testing resources

January 21, 2013

Quest Diagnostics offers additional resources about hair testing for illicit drug use at HairTesting.com.

Hair testing

Hair testing from a leader in science and service

January 31, 2012

Hair testing provides up to a 90-day detection of repetitive drug use, which can act as a powerful drug use deterrent.