Before we take a closer look at the OXIDIZING AGENTS, we should first clarify what oxidation is: An oxidation is a reaction with oxygen, the Greek word component “oxys” can be translated as “sour.” OXIDIZING AGENTS, in turn, have an oxidizing effect, which means that they can cause other substances to absorb oxygen, but they themselves are reduced. What sounds pretty abstract and like a long time ago chemistry lessons has an astonishing everyday connection: OXIDIZING AGENTS are known for their disinfecting effect, for example, they are used to sterilize water (chlorine, ozone). And if you have dyed your hair blonde, you have probably already become acquainted with the bleaching oxidant hydrogen peroxide.