How do you clean headlights and protect against road salt?

No detailer will ever recommend the standard sanding of the headlights – which still lists as a top solution on many search engines. Full and easy-follow kits are available that take 10 minutes of your time and results last for up to 3 years. Sanding will damage the integrity of the polycarbonate surface leaving it prone to sun damage and more vulnerable to stone chips.