You'd be better off applying a wax or sealer to them periodically. The headlights on my 2015 Canyon are crystal clear, and it sits outside 24/7. I treat them just like I do the paint, and they're holding up great.
Yes, Paint Film Protection (PPF) either by 3M, SunTek Ultra or Xpel. All of my cars have a full frontal Suntek Ultra PPF, to include: Bumpers, Lights, Hood, Fenders and mirrors.
This film can add up to 14mil spec of durable, pliable protection from rocks and other debris. Secondly, the three mentioned above have self-healing qualities where light scratches disappear when presented with a heat source (i.e. sunlight). In addition they usually come with a ceramic coating on them so they are protected, easy to clean and vey hydrophobic. The second quality to the coating is UV protection which causes the base clear-coat on the plastic lenses to fade.
Unless you use a ceramic coating on the base lenses, there is no wax or maybe one sealant that offers UV protection...
So yes, there is... You can go to the websites of the brands I mentioned above and each has an engine to find an installer near your location.
Keep in mind, you get what you pay for... The aforementioned products, with installation is not cheap...
Good replies, I have used the "wax and seal" on OTM (other than mustang) and its not the best for long term. I'll have a look at those products mentioned. Thank you!!
Xpel kit has film that covers headlights, fog, and turn signal lens. One of the first things I did to my Mustang and worth every penny. Plastic headlight lenses are $hit!