Verifying that it is in the Moderna COVID vaccine, I find a 12/30/20 CDC document titled: “COVID-19 Vaccines: Update on Allergic Reactions, Contraindications, and Precautions.” [1]
https://blog.nomorefakenews.com/2021/05/19/shocker-why-is-this-substance-in-the-moderna-covid-vaccine/