What to know about hair follicle drug tests

Employers, lawyers, and medical professionals are showing increased interest in hair follicle drug tests because they can determine if a person has been using illicit drugs or misusing prescription medications.

In this article, we discuss how hair follicle drug tests work, how to use a home kit, and what the results mean. We also cover the accuracy and cost of testing, whether people without hair can still provide a sample, and how hair follicle tests compare to traditional urine-based drug tests.

What is a hair follicle drug test?

A hair follicle drug test can determine patterns of illicit drug use or prescription medication misuse over a certain period — this is typically 3 months for hair samples that come from a person’s head.

Full story at Medical News Today