The skin has the ability to absorb chemicals.

Leading dermatologists around the world support Aquasana’s claim that warm water and steam will open the pores of the skin to the extent of ‘letting contaminates’ in.

The fact that the skin absorbs chemicals is confirmed by successful products such as the weight loss patch, nicotine patch and the birth control patch. If the skin did not absorb contaminants, then chemicals would not require Material Safety Data sheets, it would simply be necessary to avoid breathing or consuming them.

If you are doubtful of the validity of the above information, here is a simple test; take chlorinated water, leave your finger in there for 60 seconds and then test for chlorine!