There's no way to link to without it being behind spotify's wall, but Bobby Kennedy Jr. explained the use of poisons in vaccines on Joe Rogan. You can of course easily find it on spotify should you want to. It was very well explained and he provided where to check his facts in court cases he'd litigated etc. Rogan and Bobby Jr are both often idiots in individual views, but occassionaly useful just for not being torally in step with the supplied narrative. The short version is basically all vaccines have some sort of poison in them because that stimulates an immune response increasing measurable efficacy.