From the Manufacturer:
Metal Magnet's key ingredient, purified Humifulvate, is obtained from a unique, spring-fed, Hungarian peat deposit that is over 3,000 years old. It has been the subject of scientific studies for over 40 years. Research shows that Metal Magnet™ binds to heavy metals such as lead and cadmium, allowing the body to expel them more easily.
Years of environmental exposures to toxins, buildup of unhealthy waste substances, and improper eating habits can all take their toll on your system. Metal Magnet contributes to a healthy lifestyle by helping limit the amount of heavy metals in the body.