Please find below a list of our most recent lab test results. These results have been taken by Analytical Research Labs, Inc. (ARL). As one of the most respected and experienced leaders in the hair tissue mineral analysis field, Analytical Research Labs, Inc. (ARL) has been setting the professional standards that have been emulated for decades by national and international hair testing and interpretation laboratories. ARL, which pioneered the field of hair tissue mineral analysis interpretation, has earned the respect and endorsement of health care professionals throughout the United States, Canada, Mexico, Europe and Asia.