Hair Testing Overview

Quest Diagnostics envelope and tweezers for hair collection for drug testing

Hair testing for drugs of abuse provides up to a 90-day drug use history. Collections are convenient and tamper-resistant with results that are fast and reliable.
 

Hair Testing FAQs

Hair testing, tweezer of brown hair cut with lab technician

What drug testing situations are best suited to a hair test? Is hair analysis appropriate for workplace drug testing other than pre-employment?

 

Hair Testing Resources

Test tubes for hair and drug testing in the laboratory

Review our hair testing case study and see what existing clients are saying about their Quest Diagnostics hair testing program.

Process and Certifications

Scientists in laboratory performing hair testing and drug testing

Our hair testing drug panels yield reliable results that allow you to screen with confidence and look back at patterns of drug use.
See Our Panels

Hair Testing Collections

Quest Diagnostics yellow hair collection envelope for hair testing and drug testing

Locate a nearby collection site from more than 2,000 across the country. We offer resources to help you create the most effective hair drug testing program.
Collect a Hair Sample