What Is A Hair Follicle Drug Teast?
Drug toxins are deposited into the hair follicle and trapped permanently or until you shave your head. As the hair grows the toxins are trapped inside the hair follicle. During the test, the hair is clipped from the back of the head near the scalp by the examiner and let the hair follicles open wide. Once sent to a laboratory the hair is dissolved with chemicals and the toxins are removed.