Bests & Worsts Reviews from Amazon

There are quite a few reviews where buyers report that this coating frosted their headlights and they had to remove it. I was concerned about this but upon application to my 2008 Kia Sorento headlights (which had been cleared using a 3M headlight restoration kit) my headlight lenses remained crystal clear. I suspect that headlight lens material and surface condition along with the atmospheric conditions under which this coating is applied (temperature/humidity/etc.) could affect the results. I will update this review after several months to see how this stuff holds up to driving, rain, snow, cold, etc.. UPDATE: The coating had started to deteriorate after 13 months and there was baked on bug impact debris on the lenses. I removed the Meguiar's coating using 70% isopropyl alcohol and inspected the headlights. One headlight was showing a little haze. The other headlight was still mostly nice and clear. I cleared the light haze from both headlights using 3M rubbing compound on a 3M orange foam pad and hand drill and applied another coat of the Meguiar's spray (two overlapping coats with five minutes of dry time between applications). You can see in the attached photos what my eleven year old headlights look like as a result of using the Meguiar's coating along with 3M rubbing compound. This vehicle was always stored outside and exposed to the sun, rain and a lot of snow. I think this product is worth it for the protection it provides. One 4 oz. can was enough for two full treatments with some left over for next year. UPDATE #2: Another year has passed, I just recoated my headlights after buffing them with 3M rubbing compound using a pad on a drill. There was a slight bit of haze on the turn signal part of the lenses but the rest of the lenses were still nice and clear. My 12 year old headlights look almost new. I got three full applications (two coats per application) out of one can.