Hair Analysis Test | Hair Mineral Analysis UK, https://www.mineralstate.co.uk - how to take a hair sample for hair analysis: Hair Mineral Analysis (HTMA) is a reliable clinical laboratory-screening test to measure a person's trace element and mineral content status for such minerals as calcium, iron, potassium and zinc in a hair sample. It also detects "Heavy metals toxicity”, providing you with an accurate analysis of high levels of toxic metals concentrations including aluminium, arsenic, mercury and lead by using a hair sample f.