Ancient Minerals Magnesium Flakes are ultra-pure, highly-concentrated crystals of magnesium chloride (MgCl2) sourced from the ancient Zechstein seabed in Europe. These magnesium flakes are extremely pure because the seabed lies 1,600 to 2,000 meters beneath the surface of the earth, where it has been protected for 250 million years.

The flakes provide high levels of magnesium (47% magnesium chloride) and trace elements from ultra-pure, unpolluted deposits found in this ancient seabed. These extremely pure magnesium flakes offer very low sodium content. Magnesium flakes are especially beneficial when used in baths or footbaths. They are a very cost-effective means to raise levels magnesium in the body via transdermal application.