What it is
Sanded back, refined, sealed.
The plastic lens on modern headlights isn't glass — it's polycarbonate, and polycarbonate oxidises under UV exposure over time. That's the yellow, cloudy look, and it isn't cosmetic: it genuinely cuts down how much light gets through, which matters most exactly when you need it most, on a dark road.
We sand back the oxidised layer in stages, refine it to a clear finish, then seal it with a UV-resistant coating so it doesn't just cloud over again in a year. Light output goes back to something close to what it was when the car was new.
A new pair of headlight units on most modern cars is expensive — often more than the rest of the car's cosmetic condition would justify. Restoration is a fraction of that cost, and on a car that's otherwise in good shape, cloudy lenses are usually the single thing making it look older than it is.