COVID-19 Vaccine Ingredients By Vincent Iannelli, MD / March 25, 2021 / adjuvants, anaphylaxis, buffer, COVID-19 vaccine, HEK-293 cells, ingredients, ionic compounds, mRNA vaccines, PEG, PER.C cells, polysorbate 80, preservatives, stabilizers Have questions about COVID-19 vaccine ingredients? Share this:FacebookTwitterRedditPrintLinkedInPinterestEmailTumblrWhatsAppLike this:Like Loading...