I tell you what works better...... Use some gease lightning to get the built up dirt off of the lense, which it's gonna dry it out so spray it on and rinse it quick. So to finish it off, use some turtle wax chrome polish. Apply it like it was wax. Let it set for about 10 minutes, and take a dry towel and buff it out. I garunteed you great results. If this don't work on yours, then you'll need to wet sand down the headlight with 1100 grit paper, then 1300 grit and then a light spray can clear coat. That should really make it look like new.