According to the manufacturer:

http://bluemagicusa.com/index.php/bl...t_lens_sealer/
Headlight Lens Sealer

* For new & restored lenses

* Keeps lens clear & bright

* Protects lens from UV rays

* Seals out dirt & grime

* Prevents yellowing & hazing
This may be the Headlight Sunblock everyone has been looking for.