well im on my second set of stock headlights because the first set fogged up.
car is a 2006 ss/sc. any advice on polish or how to the keep lenses looking new ?

 

They sell some stuff at oreilys that you put on like wax then rub off

 

you should wax the headlight/tail lights regularly to help against the UV rays, before you go and buy another set of headlights there's products in the market that can fix them ( most of the time)

We sell this kit:

restore,headlight restoration, tail light wax,

I hope that helps

 

Yes regularly using the wax on the headlights is good. The headlight covers are very sensitive and the get the swirls very quickly. So the regular care can keep them always like the new.. Good luck...