According to Encyclopedia Britannica, hydrogen peroxide (H2O2) is “a colorless liquid usually produced as aqueous solutions of various strengths, used principally for bleaching cotton and other textiles and wood pulp, in the manufacture of other chemicals, as a rocket propellant, and for cosmetic and medicinal purposes.” The kind you probably have in your home or buy in the drugstore is a diluted solution, usually 3-6% because pure hydrogen peroxide can be dangerous when heated or in contact with your skin. So what is household grade hydrogen peroxide used for, other than taking up space and gathering dust in your medicine cabinet? Here are 10 surprising and really helpful hydrogen peroxide uses to look into now.