I think it's a good question, just how much chlorine actualy gets absorbed. Given that the body's primary extra-cellular electrolyte is chloride, and given that people swim in the ocean with no problems relating to chloride (to my knowldege, at least) and given that the kidneys are really good at regulating chloride, it wouldn't seem to be a problem. Chlorinated water from the city is treated with calcium hypochlorite, which is a strong oxidizer, but which is relatively unstable upon exposure to air too. It's typically only presnet at a few ppm's in city water, unless it's inadvertently overloaded, and most likely it could just slightly oxidize a few hairs or skin, but not too many. I also wonder about how much fluoride and fluosilicates are transmitted through the skin. It may not be a big issue though, provided the concentration is on the order of 1ppm. If anyone runs across an article, maybe they'll put it up. I bet Corinthian would know.