Quoted From EricTheCarGuy:
Lets just say you’re about the 50th person to point that out today so rest assured I’ll be making a video about those headlights and the different ways to handle that situation both the commercial and ‘home’ remedies that have been suggested. To be honest I don’t think there’s any hope for the left one though as it’s cracked and the ‘yellowing’ is actually on the inside from what I can see, doesn’t mean we can’t trash it trying a bunch of different stuff before I swap it out though. T)
trust me when i say, nothing works. the only products that remotely work are the ones that have the “clear coat” to cover the lens. and thats only for a few weeks, after you drive in the rain, its back to the crappy state. you will eventually need to replace them.