What are free radicals?
Free radicals, also known as oxidants, are formed naturally in your body when food is broken down. Free radicals also form in our skin and eyes when we are exposed to sunlight, and are also in the air we breathe. Smoke, air pollution, stress and alcohol can also lead to an increase in the production of free radicals. Free radicals are highly reactive molecules, which can lead to cell membrane, protein and DNA damage.