Olive oil comes from olives, the fruit of the olive tree. Olives are a traditional crop of the Mediterranean region. People make olive oil by pressing whole olives. Olive oil acts as an antioxidant, which is a substance that prevents oxidation. Oxidation is a process that can produce free radicals, which are chemicals that can potentially damage cells and may contribute to cancer development. When applied to the skin, antioxidants may prevent premature aging. Also, some research suggests that putting olive oil on the skin after sun exposure may fight off cancer-causing cells.
