There is so much crap that goes into both food and cosmetics in the US, let alone products that are imported from China. The pet food scare had me doing a lot of research about pet food and, more recently, I have been doing lots of research about what goes into to skincare. One of the most common ingredients are animal by-products that come from rendering plants. Rendering plants take dead animals - road kill, diseased farm animals, euthanized dogs and cats, etc - put them in a big cooking pot and process them down to a "valuable" substance that is used in most American cosmetics. It's gross.
You can read a bit more here, if you can stomach it.
I've become more and more wary about what I put in my body and what goes on my skin (because, what goes on my skin just gets absorbed into my body). I recently threw away all kinds of beauty products because of their contents.