Why would they put antifreeze in vaccines?
Well, they wouldn’t.
That antifreeze is an ingredient in vaccines is one of the easier anti-vaccine myths to debunk.
Antifreeze in Vaccines
That vaccines contain antifreeze is also one of those anti-vaccine myths that continue to scare parents away from vaccinating and protecting their kids.
Some vaccines do contain 2-phenoxyethanol, which can be used as a stabilizer or preservative.
2-phenoxyethanol is not antifreeze though, although it kind of sounds like it.
Antifreeze is also called ethylene glycol. This is the type of toxic antifreeze that causes poisoning. It is a colorless, oderless, sweet liquid that is toxic to humans, cats, and dogs in very small amounts.
Polyethylene glycol was once used to inactive some brands of flu vaccine, but PEG is not antifreeze.
What to Know About Antifreeze in Vaccines
Vaccines do not contain antifreeze or any other toxic ingredients.