Headlights are restored to clear after a process that removes a layer of oxidation, which is a common problem caused by exposure to the sun's UV rays, road debris, and environmental pollutants. This oxidation causes headlights to become hazy and yellowed over time, which diminishes their brightness and makes driving less safe at night or in poor weather. Restoration kits or professional services sand away the damaged layer and apply a new protective clear coat to prevent it from reoccurring.
