Hydrogen peroxide is a chemical compound with the formula H2O2. It is a colorless liquid that is slightly more viscous than water and is used as an oxidizer, bleaching agent, and disinfectant. Hydrogen peroxide is also a mild antiseptic used on the skin to prevent infection of minor cuts, scrapes, and burns. It may also be used as a mouth rinse to help remove mucus or to relieve minor mouth irritation, such as due to canker/cold sores, gingivitis. Hydrogen peroxide works by releasing oxygen when it is applied to the affected area, causing foaming, which helps to remove dead skin and clean the area. It is found in biological systems, including the human body. Hydrogen peroxide is used in many industries, including as a bleach for textiles and paper, as a component of rocket fuels, and for producing foam rubber and organic chemicals. However, it can cause irritation to the eyes, nose, skin, and throat, and workers may be exposed to it through inhalation or contact with the skin. Pure hydrogen peroxide is a highly reactive chemical that is capable of undergoing numerous reactions, including molecular additions, substitutions, oxidations, and reductions.