Hair follicle drug testing is one of the most popular drug-testing methods today. It’s non-invasive, and the samples can be taken easily in a plain view unlike urine drug tests. Normally, when drug metabolites (residues) go into your blood, some of <br />these metabolites are taken to the blood vessels in your scalp and get trapped in your hair follicles. Get more info about hair follicle drug testing faq: http://www.helpmepassadrugtest.com/hair-drug-testing.php
