SelenoExcell® High Selenium Yeast is a nutritional supplement produced by Cypress Systems Inc.. Our product has been standardized with The Division of Cancer Prevention at the National Cancer Institute and is supported by a Clinical Trial Agreement (CTA). To maintain the highest quality product for your health and wellness, this natural food form of selenium has withstood the rigors of Gold Standard Clinical Research.

In 1996, the Journal of American Medical Association reported that a Nutritional Prevention of Cancer Trial had, for the first time, shown that a nutritional agent could be effective in reducing certain forms of cancer; specifically a 48-63% reduction in colon, lung and prostate cancer risk and 50% overall reduction in mortality for all cancers.