[shorod]

Such a product would probably only be short term, and I suspect only makes the lens "look" better and only offering minimal improvements to optical quality. You could most likely achieve the same effect with some car polish to clean the surface.

If you want a longer term fix, you could wetsand the lens to remove buildup and contaminants, as well as getting the lens surface flat. Then use a foam pad polishing system to buff the lens smooth, being careful to not heat the plastic so much that it gets soft and distorts.

If you don't already have the buffer and foam pad, you would likely be better off to pick up a new set of DOT-approved aftermarket headlight assemblies from eBay or similar.

-Rod