Don't know about being too safe but it's just how many things are these days- A DIRTY BIG FAT CON!!!!!!!!!.
You won't come across many things that live up to their own marketing hype I'm affraid.
Look at GG3- they list a multitude of benefits for this product- kind to hands, less blead, rubber just glides across the glass, rubber lasts longer etc.etc. All total crap & just not true. The only thing it does better is make a nice gleam on the glass.
Look at spray-on bath cleaning products- spray on, rinse off, job done! What a load of lies. I've never used one to this day that doesn't also require scrubbing with a sponge. Spray on, rinse off & still be left with a dirty great big tide-mark! The worst thing is, I still buy it!