Yawn. Formaldehyde is listed at number 14 but "surprisingly", the article makes no mention of the levels of Formaldehyde in a vaccine nor how potent it is. The following below is from a different site.

Formaldehyde is diluted during the vaccine manufacturing process, but residual quantities of formaldehyde may be found in some current vaccines. The amount of formaldehyde present in some vaccines is so small compared to the concentration that occurs naturally in the body that it does not pose a safety concern.

I've been vaccinated twice, I feel great, potential cancer caused by Formaldehyde be damned!