Dear White Tiger,
I was hoping you would find my post because you are right, it was from YOUR post that I read about the idea of saltpeter. I just ordered 3 bottles from a chemical factory.
I did some more research on the internet regarding saltpeter (potassium nitrate) and it gives off oxygen if it gets heated (thus it is used for gunpowder). This seems like it would be good for the skin. Why? Because on the oxygen/H2O2/Ozone forum, "Golfegg" used ozone to get rid of age spots. Golfegg emailed me to tell me how he did it. Evidently there is an ugly phase when the skin is oozing out gunk before the skin eventually clears up. He says the skin stays clear for a year. Ozone gives off oxygen as well. I believe that much of the problems on our skin is because of oxygen deficit. The problem is that a medical grade ozonator is $2000, but a bottle of saltpeter is $4.
I cannot use the cranberry method you suggested because it just seemes like too much work and I won't be able to keep up with it. (Buying and crushing fresh cranberries).
I tried cucumbers (which I also read about on so many sites) and I didn't notice any difference. Saltpeter just seems like the easiest solution because I can keep it near the sink put some on every morning and evening. It also sounds logical because of the oxygen theory. (What do you think abou that theory?)
The only thing I'm afraid of is the fact that saltpeter is a preservative they use for meats. Putting preservatives on my face doesn't sound so nice. But perhaps it is a preservative because of giving off oxygen (pure oxygen kills bacteria).
I found other information on the internet regarding saltpeter curing freckles (perhaps where you got it?) but there is no mention of someone that has actually tried it.
What do you think? Am I crazy to try saltpeter? My freckles are UGLY!!!!
I'll appreciate any feedback from you!

Thanks,
Pixie