What chemicals are in a flu shot?

Read the insert: Each dose has an insert available listing all ingredients that are involved to make the vaccine safer and stronger.

Check insert: Regular flu shots carry a warning of egg allergy. The flu virus in routine shots is a dead virus so you can;t "get the flu" from the shot ( a common misunderstanding). The nasal flu vaccine is not a dead virus and is not recommended in pregnant women. As far as preservatives, or chemicals they vary from company to company.

Mercury-free vaccine: Thimerosal is a mercury-based preservative used in multi-dose vaccine vials. It is not known to be dangerous, but why get injected with mercury? You can order a mercury-free flu shot, like I do, for a few dollars more, in a single-dose vial, or, better, in a pre-filled glass syringe, which reduces chances of contamination by office staff during syringe-filling.