What are the ingredients in the COVID-19 vaccines?June 29, 2021|By guardiansclede A What are the ingredients in the COVID-19 vaccines? Vaccine ingredients can vary by manufacturer. To learn more about the ingredients in authorized COVID-19 vaccines, see Information about the Pfizer-BioNTech COVID-19 Vaccine Information about the Moderna COVID-19 Vaccine Information about the Johnson & Johnson’s Janssen COVID-19 Vaccine Ingredients Included in COVID-19 Vaccines PrevNext