Hydroperoxides are organic compounds that contain a peroxide functional group, characterized by the presence of an -O-O- bond. They are formed when hydrogen peroxide reacts with other organic molecules. Hydroperoxides can be unstable and may decompose, releasing oxygen and potentially causing reactions with other substances. These compounds are often used in various industrial applications, including as bleaching agents and in the production of polymers. In biological systems, hydroperoxides can act as signaling molecules but may also contribute to oxidative stress, which can damage cells and tissues if not regulated properly.