Interest in immune-linked ingredients like selenium to persist after pandemic passes, supplier asserts A deeper commitment to everyday immune health will buoy select ingredients in the post pandemic world, especially for older consumers, a selenium supplier asserts. Paul Willis, founder and CEO of Cypress Systems, said the large body of science backing the immune support ingredients will continue to support those ingredients once the global pandemic crisis recedes. Cypress Systems supplies SelenoExcell, an organic selenium supplement originates from a non-pathogenic, non-GMO Saccharomyces cerevisiae yeast strain. Selenium has long been associated with optimum immune system performance. But in recent years Cypress Systems has pushed other important benefits of the ingredient, including