I would avoid them even if they say "...safe...".
I would recommend buying a wash mitt for your wheels.
Use your regular car wash soap and a bucket of warm water and wash them as you would wash your car.
(wash the rears 1st, then the fronts)
Or you can try something
like thisI've seen it work personally and the stuff is amazing.
Cleaning is a lot easier if you
wax your wheels every so often.
Would you spray those wheel cleaners on you paint??
** Treat your wheels the way you would treat your paint **