It works
We saw this on Shark Tank, and thought we'd give it a shot.  The Chapstick sized tube is perfect for travel.  Walking on a beach with sunglasses on you know the sweat makes them slide down. Just a couple of dabs of this nerdwax keeps them in place.  It also worked well keeping glasses up during snow blowing in a recent blizzard. So while I'd rather use it walking on a beach, it did the job shoveling snow as well.  Is it costly? yes. But does it work? Yes<br />I hope this review helps you make your decision.
Rating: 5 stars