Antioxidants are very important substances that are found are required by your body that perform very important tasks. An antioxidant is a substance that inhibits oxidation, especially one used to counteract the deterioration of stored food products within your body. Free radicals are compounds that are able to cause harm if their levels become too high in your body. These compounds are directly linked to different illnesses including diabetes, diabetes, poor skin condition, and cancer. These free radicals are highly reactive compounds thus allowing them to bind with healthy cells, and can lead to an oxidative stress that can damage your cells.