Last Updated October 2026

You can clean cloudy, yellowing car headlights yourself with dish soap and water, a mild abrasive like toothpaste or baking soda or a headlight restoration kit. Finishing with a UV-protectant coating can help keep them clear longer.

Headlights clouded by years of UV exposure scatter light instead of focusing it on the road ahead. They can cut your visibility at night, when crash rates are already higher than during the day. Headlights that let more light reach the road have been proven to reduce nighttime crashes.

How to clean your headlights, step by step

This guide covers surface haze, the yellow or cloudy build-up on the outside of the lens. If your headlight looks foggy or wet on the inside, or the lens itself is cracked, you may have a seal or housing issue that needs a mechanic or body shop.

For cleaning, start with the gentlest method that fits how cloudy your headlights actually are, and work up from there only if you need to. Here’s a quick way to tell which stage you’re starting from:

At any stage, if a method doesn’t get you the clarity you want, move to the next one rather than repeating it.

Gather supplies

Depending on the method you choose, you’ll want:

• Dish soap and water
• Microfiber cloths
• Painter’s tape
• A mild abrasive — toothpaste or a paste of water and baking soda
• A headlight restoration kit (available at most auto parts stores).
• A UV-protectant sealant (if you’re using a kit, it probably comes with one)

Option 1: Wash only (if your headlights are lightly dull)

Wash lenses with dish soap, water and a microfiber cloth to remove dirt and grime. This can improve clarity if the haze is mostly a dirty buildup rather than oxidation. Finish with the UV-protectant step below.

Option 2: Wash, then use a mild abrasive (visible yellow or haze, reflector still visible)

Wash the lens, then tape off the surrounding paint and any trim or bezel around the headlight to keep from scratching chrome, painted trim and body paint. Rub a small amount of toothpaste or a baking-soda-and-water paste onto the lens in circular motions with a soft cloth. Rinse and dry, then check the results in direct light. This method can help with mild yellowing but typically isn’t enough for heavy oxidation. Finish with the UV-protectant step below.

Option 3: Restoration kit (amber, opaque or reflector not clearly visible)

A kit typically starts with a chemical activator, not a soap wash, to break down your headlight’s old protective coating. Then you wet-sand the lenses with multiple (usually two or three) grits of sandpaper, progressing from coarser to finer, and then a polishing compound. Follow the kit’s instructions closely, since sanding too aggressively, sanding one spot too long or skipping a grit step can make the lens look hazy even after polishing. Most kits also include their own UV-protectant sealant as a final step.

4. Apply a UV-protective coating

Once the lenses are clean and dry, apply a UV-protectant coating or sealant. This will help your headlights stay clearer longer. Without it, oxidation can start again within months.

Pro tips

• Skip household abrasives beyond toothpaste or baking soda. Stronger chemicals and abrasive cleaners can further damage the lens.
• Don’t sand aggressively unless you’re following a restoration kit’s instructions. Removing too much material can create new haze or cloud spots.
• Tape off surrounding paint and trim before you start to avoid scratches or chemical damage.
• Work in the shade on a cool surface. Direct sun can cause cleaning products to dry too fast and streak.
• Wear gloves and eye protection when using restoration compounds or sanding.

Headlights aren’t the only reason you can lose visibility on the road. If your windows fog up in cold or humid weather, our guide to defogging your windshield can help. Staying on top of small maintenance issues like cloudy headlights is one way to look out for yourself on the road, alongside having the right car insurance in place.

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