I wish I could say that it works on all degrees of damaged headlight lenses, but it does have its limitations.
If your headlight lenses look like a plastic milk jug, opaque white, then you are probably past the point of no return. The more opaque the lens, the deeper the damage. Sometimes long exposures to harsh sunlight actually chemically alters the plastic, and nothing will restore the clarity. It's probably time to consider replacement.
For light to moderate hazing QuikClear is the solution. For heavier damage (where you cannot see the headlight light bulb for example), you might give other products a try that are more aggressive, but it will require the use of power tools and quite a bit of time. You can always give QuikClear a try. For $4.99 it might be worth the risk.

There are all sorts of enviornmental conditions that cause the lenses to turn hazy and cloudy. Probably the most common would be abrasion or scratches from sand, road debris, road salts. Sun exposure is also a key cause for failure, though not as likley as simply the accumulation of fine scratches. Applying QuikClear protects your lenes with an additional layer of protection from scrathes. Yes, even the QuikClear will scratch, but by simply applying another coat of QuikClear will fill in those scratches for another 6-12 months of protection.

I'll break it down for you. You can find more detailed instructions by going HERE

• Start with a clean headlight lens. When I say clean, I mean free of all road grim, bugs and most importantly, wax.
  
  

  Wax is the enemy of QuikClear as it will prohibit the solution from bonding to your lense.

  Use any ammonia based product like Windex, 409, or Simple Green. If you leave any grim or bugs on your lens, the QuikClear will immortalize them on your lens.


• Once the lens is clean and dry, and above 50 degrees, open the QuikClear foil pouch. Inside the pouch is a "Sponge Wipe", that is pre saturated with the QuikClear solution. Using a wiping motion, (not a scrubbing motion), simply wipe from side to side in sweeping motions, as if you were painting the lens. One coat is all you will need, unless you miss a spot. Immedaitley go back and rewipe the spot you missed. QuikClear dries very quickly, and during the drying process, will get really sticky after about 1 minute. It will fully harden in about 15 minutes, less time in warmer areas.
  
  *HINT -After the QuikClear has fully cured (about 24 hours) you can further polish for an even better shine. Moisten the lens with Windex or other common glass cleaning product, and buff with a soft terry cloth rag. It really brings out the shine.


• In a nutshell, that is all there is to it. One other thing I will mention. Adding multiple coats of QuikClear will NOT improve the results. If your lens does not clear up with one coat, additional coats will not help. It's time to either replace the lens, or try a more aggressive approach, such as the abrasive products on the market. At this point, you don't have much to lose.

You can expect on average about a 70-80% improvement in clarity of your lens. To say that you will have an absolutly crystal clear lens would be an over statement, (that's a nice word for a lie). While QuikClear does work in about 80% of various levels of lens clarity failure, there are situations that it simply won't do much. In most cases, where the lenses are cloudy not from scratches, but from sun damage, resulting in a chemical change in the lens material, it simply will not do much for you. Also, and I have to at least say this, if the damage is on the inside of the lens, (moisture) obviously nothing will help with that situation unless you take the lens apart.

While this is a bit counter productive to our selling QuikClear, there are some other DIY solutions that you can try.

Big Disclaimer-

WE HAVE NOT TRIED THESE REMIDIES, AND FRANKLY WE HAVE OUR DOUBTS. FEEL FREE TO TRY THEM OUT, BUT PLEASE DO SO AT YOUR OWN RISK.

• Toothpaste

  It may sound odd to think of toothpaste as a cleaning agent, but it works fairly well. The reason it works is because oxidation on your headlights is similar to plaque found on your teeth. And since toothpaste removes plaque on your chompers, it can work on your car's foggy headlights, too. All you need to do is put some toothpaste on a sponge and rub the entire headlight surface with it. Use a little elbow grease for a minute or two, then wipe the toothpaste off of the light with a cloth. Apply some professional car wax to make it shine and once it dries, wipe it off again with a clean cloth.
  From - http://braunautomotive.brush.com/blog/diy-headlight-restoration-how-to-clean-foggy-headlights



• Soap, Baking Soda, and Vinegar

  This is another household remedy that can restore your headlight's luster. This probably won't come as too much of a surprise for most people since baking soda and vinegar have been used as natural cleaner for decades on a variety of surfaces. Start off by mixing dishwashing detergent in a small amount of water. Dip a clean cloth into the mixture and use that to initially clean off the headlight. Next, pour some baking soda into a cup and add some vinegar. You'll notice an immediate chemical reaction, but it's completely safe. Using the same cloth or a new one, dip it into this new mixture and wipe off the lights. Next, use a clean cloth to wipe off the mixture from the lights. For an even better shine, add some car wax at the end.
  From - http://braunautomotive.brush.com/blog/diy-headlight-restoration-how-to-clean-foggy-headlights



• Bug Spray

  If you spray a cloth with bug-spray and rub it on your old, cloudy lights they will look better. The chemicals help remove some of the dirt and UV-damaged plastic from the surface of the headlights. After the application, the lights are not back to the original clarity and seem tacky and a bit cloudy. We’ve surveyed a wide selection of videos, and the appearance does improve regardless of the brand of the bug-spray. However, there are much better methods that you can use at home, or that you can have done locally that are not that expensive.
  From - http://bestride.com/blog/can-bug-spray-really-clean-your-foggy-headlights/8380/



• Lacquer Thinner

  I discovered this by accident as I was cleaning the fender area by the headlight for painting. I ran a microfiber cloth, wet with lacquer thinner, across the area I was prepping for paint and I accidentally went over the old, foggy, looking like crap headlight. To my total amazement the opaque layer of the headlight came right out and was left behind was a crystal clear lense !!! I made a quick pass over the rest of the headlight and I was astounded by the result. A second quick pass, (quick is the trick!), and the results are what you see on the photos! I immediately did the same on the rest of my cars and 2 years later the headlights still look this good. I would recommend trying a small corner of your headlight before doing the whole headlight.
  From - http://www.instructables.com/id/The-30-sec-Headlight-Restoration/

You can buy QuikClear right HERE - Buy Now, however, some people are adverse to buying on the internet. If that is the case, at this point there are no other retail outlets as we are still in the testing stage (beta) of our product. By the spring of 2016, we should have some retail distribution available. We will let everyone know as soon as that becomes reality.

Yes of course. You can buy QuikClear by the individual pouch, or in our various counter top and shelve displays. We do not publish the resale prices. You will have to request a price sheet HERE, this will require your resale number.