The wonders of Epsom salt have been touted for hundreds of years and is said to boast beneficial properties that can soothe the body, mind, and soul. Ultra Epsom Salt is USP gradea designation reserved for only the finest magnesium sulfate in the world. Ultra Epsom is raising industry standards for premium therapeutic Epsom salt. Studies have shown that magnesium and sulfate are both readily absorbed through the skin, making Epsom salt baths an easy and ideal way to enjoy the associated health benefits. Known for its quality and functionality, Ultra Epsom can be used for many different purposes, from creating skin care products, bath bombs and scrubs to maintaining float tanks. Intensely rich in minerals, it dissolves easily and is perfect for spa-like relaxing soaks and calming foot baths. Offered in a variety of different grain sizes, SaltWorks Ultra Epsom Salt is versatile and can perfectly complement a wide range of applications that fit your needs. Fine Grain: Popular for bath blend projects, fine grain Ultra Epsom Salt is perfect for use in the bath & garden. This salt also works well mixed into soaps and salt scrubs.