Pricey but it works.
As sceptical as I was...I was also desperate to try anything to keep my glasses from sliding. Nerdwax is pricey but it WORKS. I had to work on it to get it applied evenly, but once it’s applied it works very well. It even has a minty scent, which was wholly unexpected. It’s not strong enough to be offensive or distracting.<br /><br />I would definitely recommend this product. It’s expensive but you use very little and it works very well.  I would give 5 stars for effectiveness, but minus a star for difficulty of application and $$$$
Rating: 4 stars