Hydrogen Peroxide
I've been studying this one for years. Here are a few of my notes, in case anyone may be interested. Sorry, no sauce.
-Rain is about 0.25% H2O2.
-It is in breast milk.
-It is added to milk to stop it from spoiling. They put a spoonful in a gallon of milk and store it at room temp, in Africa.
-It is a powerful spore killer, ask anyone who grows mushrooms.
-Mixed with vinegar it makes peracetic acid, one of the most powerful germicides known.
The PDF posted earlier "HYDROGEN PEROXIDE - Medical Miracle" is a great read. Highly recommended.