'''Hydrogen peroxide''' is a chemical compound with the formula H<sub>2</sub>0<sub>2</sub>. Although makeup may seem superficially similar to that of water, its properties are very different - it is a harmful irritant, and also has a powerful bleaching effect and noxious smell. | '''Hydrogen peroxide''' is a chemical compound with the formula H<sub>2</sub>0<sub>2</sub>. Although makeup may seem superficially similar to that of water, its properties are very different - it is a harmful irritant, and also has a powerful bleaching effect and noxious smell. |