Magnesium oil is made from a mixture of magnesium chloride flakes and water. Amazing Oils is 100% pure, organically sourced Magnesium Oil, from the Salt Lakes of Australia. Magnesium chloride is an easy-to-absorb form of magnesium that may be able to raise levels of this nutrient within the body when applied topically to the skin. Magnesium is an important nutrient that helps overall general health including: