Hair Testing Overview
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 Test with Quest
Working with an industry leader is always a sound decision. But we know that other factors come into play. As such, we’ve listed the top ten reasons why you should choose to work with Quest Diagnostics.
Hair Testing Resources
Review our hair testing case study and see what existing clients are saying about their Quest Diagnostics hair testing program.