Our Magnesium Soak is harvested through Solar Evaporation from Utah's ancient inland sea, the Great Salt Lake, which is naturally high in Ionic magnesium chloride. White Egret Magnesium Soaks leave less residue and contains no heavy metals. This product includes 72 ionic sea minerals and is infused with the essential oils Frankincense and Lavender that work together to help calm and relax the mind and body.