Transdermal Mg therapy can be very helpful for pain and muscle spasms. Historically the therapy of using mineral salts from the earth can be dated back thousands of years. Our Mg is cosmetic grade and is naturally sourced from Nigari which is rich not only in Mg, but also calcium,potassium, boron and other natural minerals. Placing Mg on the skin is helpful to release muscle knots and ease pain associated with muscle contraction. Our proprietary butter blend includes turmeric, arnica, and white willow bark for natural inflammation and pain relieve. It is also spiked with our exclusive relief essential oil blend and lavender essential oil. To use place generously on painful spots and use often. The high salt content may cause a sting if you have a small cut(not recommended for open skin).Recommend for ages3-100. Recommend for spot treatment on the body.