Every car wash i tend to the lights with Wax-As-You-Dry products and 4 times year i Ceramic or Graphene coat them.ceramic coating, wax, graphene spray wax. these all will just kick the can down the road, but they will kick it way down the road depending on how often you apply the product.
They do.X-Pel used to stock precut film for headlights, etc.
https://www.xpel.com/paint-protection-kits
Not sure if Weather Tech still carries headlight film
PPF as others have said. This is the way. Prevents chips and pitting also.
Paint protection filmPPF stands for?