Hydrogen peroxide is a truly incredible substance with many uses for good health!
Science first discovered hydrogen peroxide in 1818, when a Frenchman accidentally created it as a byproduct while making barium oxide from barium salts. 
Hydrogen peroxide occurs naturally in:
Rainwater--As rainwater falls to the earth, the ozone layer contributes one oxygen atom to water molecules, naturally forming hydrogen peroxide.  Today, the air is so polluted that most of the hydrogen peroxide reacts with air-borne toxins and never reaches the ground.
Lungs, gut, and thyroid; breast milk & colostrum; peroxisome structures of cells--many reactions in the body produce hydrogen peroxide. Enzymes break down excessive amounts, supplying a great source of cleansing oxygen to the system.