Hydrogen peroxide is as harmless as it is powerful, and it’s so much more than just a household cleaner. It is nontoxic, safe, really cheap, and available in any grocery or drug store in a 3 percent dilution. It’s a wonderful cleaning product, first-aid product, and sanitizer.
There’s one thing you need to keep in mind to avoid disappointment: Hydrogen peroxide has a limited shelf life of about one year when not opened and only six months once opened, provided you store it in a dark place.
