I have the "XERAPOL plastic polishing compound" to my 10jahrealten Honda Civic to completely yellowed and dulled "Sure," -Glasscheinwerfern tried. The result: madness. Like new. Superclass. However, first comes the work; and you should take a lot of time. And the finger pain after this action. But well worth the effort, considering cost what new headlights. Strong buy recommendation for the "self-made-man" (or woman, of course.)