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