How do free radicals enter the body?

Free radicals are produced by a healthy human body as a result of the use of oxygen in order to generate energy. Normal metabolic and chemical processes that take place in the body on a daily basis also lead to the formation of free radicals. Also increased amounts of free radicals are created in the body with an infection, serious illness, tobacco use and environmental toxins such as radiation and countless chemicals.

All of PMC antioxidant  supplements use varying formulas to combat the effects of free radicals.