Redmond Selenium 30’s mineral-rich granules are the perfect size for mixing or feeding free choice. This premium sea salt comes with naturally occurring essential trace minerals. Selenium 30 is also fortified with added selenium (30ppm), copper, manganese, cobalt, iodine and zinc. Redmond’s Selenium 30 is free of chemical processing, preferred by livestock, and helps animals maintain a normal function. Selenium 30 works especially well for sheep, cattle or horses in selenium-deficient areas.