It simply does not eliminate or reduce fog
Now that we all have to wear masks as a result of COVID-19, I became frustrated with my glasses always getting fogged up. So I purchase this product and have been using it daily.  Following the directions, I first clean my glasses like I would normally, then I spray my glasses (front & back) and then allow the product to dry. Finally, I use a microfiber wipe to clean my glasses and then simply wear them like usual.  Regretfully, the product does not eliminate or reduce the fog from breathing while wearing a mask.  I will also add that my glasses tend to get dirtier with this spray. I think it's because the lenses become a bit stickier (for lack of technical term).  Sorry, wish it worked!
Rating: 1 stars