squalene: its made from plnts and/or shark liver oil
en.wikipedia.org...
seems safe.
youll have to be more specific about the polysorbate there are several kinds.
im assuming that by timerosol you mean thimerosal.
that does have mercury in it, but im still not sure how dangerous it is. it does seem to have done some good in vaccines like the one for diphtheria.

