Concentrated source of magnesium. The North Sumbio salt is composed of pure magnesium sulfate crystals. We obtain our EPSOM salts through processes that ensure the natural crystallization of salts, which allows us to offer a higher quality product. 100% pure. Our Epsom salt is free of additives, preservatives and dyes. It does not contain synthetic fragrances or chemical elements harmful to health. High solubility. The size of salt crystals has been carefully selected so that they dissolve easily, thus ensuring its traditional use as bath salts in flotation therapies, immersion baths and natural cosmetic treatments.