Headlights advice please

[Purple]

My Ody has dulled and slightly yellow but quite pitted headlights.
What are the best products to use for restoring them ?

[NightKids]

https://www.youtube.com/watch?v=Cy_WF5Iei_I

[Purple]

I ended up buying a kit.
Would have preferred to just buy a spray can of u/v resistant lacquer and use my own sandpaper but no one locally had it.