Hydrogen peroxide is used to infuse oxygen to the body to create an oxygen rich environment where cancer cells cannot survive. This effect has been well documented since 1920. Hydrogen peroxide is part of your bodies natural immune defense. When a medical grade hydrogen peroxide is infused into the veins, it bypasses the gut, and then breaks down into various oxygen subspecies. Through its actions, hydrogen peroxide severely inhibits the growth of anaerobic organisms (bacteria and viruses).