Then you should know how to read and understand the info on a MSDS, and see that you are on shaky ground.
An MSDS safety sheet deals with concentrated levels of a chemical and what might happen if you drink it or get it on your hands. You can't apply that information to a severely diluted application.
If you are afraid on that basis, then you should be terrified of sea water which is horribly toxic and full of heavy metals and other nasty chemicals when undiluted.