This clear coating is the exact same as used on the new car headlights to specified standards.
Simply polishing headlight lenses does not produce a lasting finish as the polycarbonate plastic used on headlight lenses must be protected from humidity and moisture atmospheric conditions in order to last.
Polishing alone may only last a few weeks at the most. The use of inferior lacquer coatings may also see the coating crazing, flaking or delaminating which will result in poor performance of the headlight beam.
Nu Vision will give the best possible and longest lasting results when applied to correctly prepared headlight lenses.