Posted on 2/26/2026
Foggy or cloudy headlights are more than just a cosmetic issue—they can seriously reduce nighttime visibility and make driving less safe. Over time, headlight lenses become oxidized from sun exposure, road debris, moisture, and environmental contaminants. The good news is that mild to moderate fogginess can often be improved with some simple DIY methods. If your headlights are looking dull or yellowed, these tips can help restore clarity and improve safety. It’s also important to know when a DIY approach is enough—and when professional service is the better option. Why Headlights Become Foggy Most vehicles use plastic (polycarbonate) headlight lenses instead of glass. While plastic is lightweight and durable, it’s more susceptible to oxidation. UV rays from sunlight gradually break down the protective coating on the lens, causing a cloudy or yellow appearance. Additional contributors include exposure to road salt, chemicals, dirt, and weather extremes. Over ... read more