Hair Mineral Analysis is a simple test where a sample of hair is taken and used as a biopsy material to test for mineral and chemical imbalances as well as heavy metal toxicity. It is a useful tool to determine the underlying health symptoms, which are largely caused by nutritional deficiencies, imbalances and toxicity in the body. Your body eliminates minerals and heavy metals in the hair. The levels of these minerals and heavy metals and the ratios of minerals to one another, reveal all kinds of things about your body chemistry and overall health.