Plasma donations at Westland CSL Plasma Donation Centers are crucial for giving therapies to those who need them the most. Our work helps to make sure that the people of Riverside can live a good life. Donated Plasma is also used in research to find new treatments. Reviews of the Center’s donors have praised the staff for being kind The CSL Plasma Center in Riverside provides a vital service in collecting plasma donations from eligible donors. CSL Plasma Incorporation is the world’s largest collector of human plasma.