“This product worked as a cleaner, but I didn't find this product to work on my polycarbonate lenses for antifog (which is why I bought it.) There are more convenient cleaners than this one.”
The anti-fog in the spray bottles is easier to apply, but the paste lasts longer. It is made for polycarbonate lenses as well, but depending on conditions will vary how any of these products will work.
We apologize that you are having an issue. We have sold hundreds of units of this anti fog cleaner and have not ever heard this complaint. Please send it back for a refund if you are not satisfied.
