I don’t know if there might be long term negatives, but I started using plain water and a few drops of detergent (such as Dawn) in a squeeze bottle to clean my glasses.
It worked so well, I started using it on DVDs. (Netflix recommends standard glass cleaners.)
I just squirted some on a rag to clean my notebook screen. It came out gleaming!
I suspect that this is the very same formula which a lens cleaner sells on Amazon and who tell you to shake well before using.
And how cheap can it get?