The remarkable properties of hydrogen peroxide have been known for more than 150 years: It has a deodorizing and disinfecting effect, accelerates wound healing, reliably kills all pathogens, including multi-resistant ones, and breaks down into two substances that are as common as they are harmless: Water and oxygen. In addition, neither allergies nor resistances to the inexpensive and freely available substance are known. Unfortunately, H2O2 and its chemical cousins have been forgotten - along with the international research demonstrating its effectiveness. Dr. Jochen Gartz has already countered this collective amnesia with his previous work, "Hydrogen Peroxide - The Forgotten Remedy". From the letters that have reached him since then, he has compiled a practical book that deals with further questions as well as case and app.