Just polished up my headlights today and thought I'd add a review.
My husband bought the Mequiar's Heavy Duty Headlight Restoration Kit about a month ago and used it on his 2006 Acura MDX and really liked it.
The headlights on the truck weren't that bad but there was a section at the top that was yellow & non-clear and portions that were fading. So, I figured I give this a shot....
In a nutshell - the kit requires hand sanding (wet & dry), buffing (with drill & buffing compound), & applying UV protectant. Easy job....even I can do it!! LOL
Here's a picture of the worst area on my headlights - upper corner:
Obviously, this is DAY 1.... The UV protectant is important as to protect from further yellowing/fading. My husband has applied it a couple times 'just in case'. I honestly don't know how long this will last - so we'll see. Easy to perform this again in a few years if needed.