How long can the headlight restoration fluid last after application?

[VanJoel]

After using headlight restoration fluid, it can last for about one month. Here is more information about car headlights: 1. Car headlights are very important: After prolonged use, you will notice that the light emitted by the headlights becomes dim and yellowish, with reduced brightness, especially for halogen headlights, which is more noticeable. There are two main reasons for the decrease in light brightness: one is the scratches and dust left on the lens cover by external factors like wind, sand, and gravel; the other is the heat generated by the bulb during illumination, which causes the plastic lens cover to age and turn yellow. 2. Traditional methods for headlight restoration: The traditional restoration method involves sanding and polishing the headlight cover, followed by techniques like waxing and coating to restore the headlight's clarity and brightness.