It turns out beauty is more than skin deep: The average person slathers, lathers, rubs and sprays, 10 different skin care products on his or her body every day--and since our skin acts more like a sponge than a barrier, we absorb the nearly 130 chemicals we regularly expose ourselves to. Cosmetics companies and the FDA maintain that these chemicals are safe, and many of them are--in small doses at least. But consider that the average woman wears makeup every day, and you begin to understand how