Product is not that easy to use and takes a little time and elbow grease, but it is very effective and you will be very surprised at how well it works. I would leave at least two hours, follow the instructions and watch the Video. Each step should be followed through, it will become easier once you understand why you are doing it, and see the results as you so (from first step to last your see results). If you need to try and fix a small part, you need sand or polish the entire Lens, start at top and work to bottom, otherwise you will have streaks.

Bought it to help with joint and muscle issues. Didn't help much at all, but the worst part was the side effect of diarrhea. That's what the name really seems to apply to the most, because it seems to act on your bowels more than anything else, and it is usually without warning. You're in deep trouble if you aren't close to a bathroom REAL fast. I'd like to kick these people for continuing to sell this without putting a warning label on it, or outright pulling it off the market. Very low class of them. I thought Schiff was a respectable company, but not anymore. Won't buy their products anymore. Don't trust them.