My headlights were really, even excessively, tarnished, yellow and opaque! On advice of my brother-so I bought this kit renovation and what a surprise !!! They returned a beautiful luster and translucent with that !!! Very happy with this purchase, I am renovating myself, it's not complicated at all (A video is visible on YOUTUBE) and quite fast (about 1:30). My vehicle is passed MOT and I won visibility at night !! I recommend it !!!!