Even more concerning is that potential toxic effects of synthetic substances interacting in cosmetics, both within the same product and when several cosmetic products are used repeatedly every day, are barely understood. (odylique.com)
There were no signs of toxic effects on the eye, either in terms of inflammation / infection or on the cellular level. (sciencedaily.com)
High doses of some environmental contaminants have produced toxic effects in certain wildlife species. (acsh.org)