Visibility into patterns of use over months
For roles or programs where a longer look-back matters more than same-day results, hair testing gives visibility into patterns of use over months, not days.

Hair drug testing
Testology, Inc.
A standard 1.5-inch hair sample can reflect a pattern of use going back roughly three months, far beyond what urine or oral fluid can show.
Unlike urine, hair samples are collected in view and aren't subject to the same substitution or dilution tactics.
Hair testing shows a history of use rather than very recent use — pair it with oral fluid or urine if a recent event also needs to be captured.
Practical questions about how the hair sample is collected and analyzed.
We can help you decide whether hair, oral fluid, or urine testing best matches what you're screening for.
Ask us