What Causes Foggy Headlights?

When you first buy a car, all its parts, including the headlights, are usually pleasantly shiny. A few months down the line, the once shiny headlights are replaced by foggy headlights due to:

• Oxidation: A majority of modern cars feature polycarbonate plastic headlights. Unlike glass, polycarbonate plastic develops microscopic cracks that turn yellow when exposed to sunlight, eventually causing a cloudy or foggy headlight appearance
• Time and Weather Conditions: Although polycarbonate plastic headlights are typically covered using a coating film, exposure to harsh weather conditions over a long time makes the coat peel off
• Water vapor: Condensation trapped in your car’s lightbox is also a common culprit behind dulling headlights
• Dirt and chemicals: If you’re always on the road, your car may develop a thin chemical and dirt layer, causing yellow headlights