I've been using peroxide since 2006 (one year before I found Earth Clinic). Up until this past January, I would take breaks from using 1 1/2 teaspoons with 1/4 teaspoon of borax in 1 1/3 litres of water. I'm using it to increase energy, and hopefully reduce long term mycoplasma. Since January, I've increased to almost 1 tablespoon of peroxide, and a rounded 1/2 teaspoon of borax. Although if I'm fatigued which is quite often, I don't feel much increased energy, but I've noticed my PH is much more consistent, between 7 and 7. 35. I'm just getting concerned if this dose is safe long term. (By the way, since Canada has restricted access to food grade peroxide March, 2009, the price for one gallon has increased from $8. 00 - bulk buy, to $75. 00! ! And that's if you can find a gallon. It's mostly available after registering with the government and buying a large drum. I am looking for Miracle Mineral Supplement (MMS) which I've recently discovered has been re-labelled as Water Purification Drops (WPD) here in Canada, so hopefully I'll be able to switch to this soon.