EXPERIENCE THE SOOTHING RELIEF OF 100% PURE MAGNESIUM CHLORIDE FLAKES, SOURCED FROM THE HEALING WATERS OF THE DEAD SEA. ALL NATURAL AND FRAGRANCE-FREE. What are magnesium chloride flakes? SeaMAG Magnesium Chloride Flakes are a form of magnesium used in baths and topical applications. They dissolve in water and can be absorbed through the skin, helping to boost magnesium levels in the body, relax muscles, and promote overall wellness. What is Magnesium Chloride? Magnesium chloride, sourced from seawater, is naturally comprised of magnesium bound to chloride ions. Being water-soluble, it offers excellent absorption, providing a natural and bioavailable form of magnesium.