Anything a person puts on their skin will get absorbed and possibly cause problems if the ingredients aren't inert or the individual has a sensitivity to anything in the product. Also, the FDA allows ingredients in cosmetics that are banned in other parts of the world.    I've mostly stopped wearing makeup and my face looks much better. My acne is gone and I didn't get dry skin flakes this winter, my eyebrows and lashes are thicker, and though I have a bit of genetic undereye circles they can be solved with sleep and drinking enough water because applying makeup isn't aggravating them.