It definitely restores about 70-80% of worn headlights. Besides, if the headlight is in a very advanced state of wear, has turned white and dried out, you can't really do much just with a cloth and polish anyway. Still, it's worth the money, I was satisfied.

In short.. it neither removes nor restores the headlights as the title suggests. The importer has even stuck a sticker in Greek regarding the "disappearance of scratches on the body".

So, after rubbing the yellowed headlights with 3 grades of wet sandpaper, constantly wetting them during the process, I applied this specific polish that didn't make any significant difference after sanding and removing it as shown in the photos. After visiting a headlight specialist, he suggested that I have them crystallized to remove the fogging, at a cost of 70€ excluding VAT.
After doing some research, I tried applying a ceramic liquid protection that I bought from here, and the fogging disappeared for the most part. It is definitely better than before, but definitely not "like new".
The F1 didn't provide anything beyond some kind of deep cleaning after sanding.

I sanded first with sandpaper because my headlights had a big issue. First with grit 1000 for 2-3 minutes and then with grit 2000 for another 2-3 minutes. Then I applied the polish and the result is evident from the photos.

Top. With 5 minutes of rubbing (without a polisher) on each headlight, you have an improvement of 80 - 85%. I applied it to a 15-year-old car that is always parked outside. This rubbing lasted me about 3+ months. The liquid in the bottle will definitely last about 5 to 6 rubs, over a year in my case. I think if you use a polisher, the results will be even more dramatic.

Really good product. Application with a roller for better and more comfortable results. Application every 6 months approximately. With a roller, the performance reaches 80 to 90%

Very good product! I randomly saw it on YouTube and it works wonders. For better results, it requires a sponge on a drill.

Amazing product!! First, I sanded them with wet sandpaper No 1200 for 5 minutes each, then No 2000 for 2 minutes, and finally No 3000 for another 2 minutes. While the yellowing had disappeared, it was still very dull. Then I applied the polish and it did the trick! 70-80% improvement.

It does what it promises. In 15-year-old headlights, I would say that it improves them by 50-60%, which is quite good considering that it only takes you 10 minutes for 2 passes on each headlight and without needing any tools. Unfortunately, deep scratches do not disappear, but the foggy appearance is mainly removed.

Very good product. It visibly removes stains, but it's good to have a polishing cloth with a drill at least. It will do a better job than by hand. Anyway, it does what it promises

I give it 4 stars because it really doesn't need anything to remove the yellowing from the headlights...
You wash the headlight from the dust, dry it, and with a cloth and circular motions, you apply the cream with steady pressure and in 10 minutes you have cleaned both headlights of a car... and the improvement is also evident.
Because I tried it on 2 cars that both have peeled off the factory protective varnish, in the end result the peeling remains, of course, it doesn't have the power to remove such a thick film. Also, it is understood that the solution is temporary and needs to be repeated every 6 months.

Perfect. I just bought a cleaning cloth that the seller recommended and in 2 minutes, each light is like new.